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Publisher: Oxford University Press   (Total: 369 journals)

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Showing 1 - 200 of 369 Journals sorted alphabetically
Acta Biochimica et Biophysica Sinica     Hybrid Journal   (Followers: 6, SJR: 0.881, h-index: 38)
Adaptation     Hybrid Journal   (Followers: 8, SJR: 0.111, h-index: 4)
Aesthetic Surgery J.     Hybrid Journal   (Followers: 6, SJR: 1.538, h-index: 35)
African Affairs     Hybrid Journal   (Followers: 57, SJR: 1.512, h-index: 46)
Age and Ageing     Hybrid Journal   (Followers: 80, SJR: 1.611, h-index: 107)
Alcohol and Alcoholism     Hybrid Journal   (Followers: 14, SJR: 0.935, h-index: 80)
American Entomologist     Full-text available via subscription   (Followers: 5)
American Historical Review     Hybrid Journal   (Followers: 126, SJR: 0.652, h-index: 43)
American J. of Agricultural Economics     Hybrid Journal   (Followers: 41, SJR: 1.441, h-index: 77)
American J. of Epidemiology     Hybrid Journal   (Followers: 152, SJR: 3.047, h-index: 201)
American J. of Hypertension     Hybrid Journal   (Followers: 18, SJR: 1.397, h-index: 111)
American J. of Jurisprudence     Hybrid Journal   (Followers: 15)
American journal of legal history     Full-text available via subscription   (Followers: 4, SJR: 0.151, h-index: 7)
American Law and Economics Review     Hybrid Journal   (Followers: 26, SJR: 0.824, h-index: 23)
American Literary History     Hybrid Journal   (Followers: 12, SJR: 0.185, h-index: 22)
Analysis     Hybrid Journal   (Followers: 23)
Annals of Botany     Hybrid Journal   (Followers: 33, SJR: 1.912, h-index: 124)
Annals of Occupational Hygiene     Hybrid Journal   (Followers: 25, SJR: 0.837, h-index: 57)
Annals of Oncology     Hybrid Journal   (Followers: 48, SJR: 4.362, h-index: 173)
Annals of the Entomological Society of America     Full-text available via subscription   (Followers: 9, SJR: 0.642, h-index: 53)
Annals of Work Exposures and Health     Hybrid Journal  
AoB Plants     Open Access   (Followers: 4, SJR: 0.78, h-index: 10)
Applied Economic Perspectives and Policy     Hybrid Journal   (Followers: 18, SJR: 0.884, h-index: 31)
Applied Linguistics     Hybrid Journal   (Followers: 51, SJR: 1.749, h-index: 63)
Applied Mathematics Research eXpress     Hybrid Journal   (Followers: 1, SJR: 0.779, h-index: 11)
Arbitration Intl.     Full-text available via subscription   (Followers: 19)
Arbitration Law Reports and Review     Hybrid Journal   (Followers: 12)
Archives of Clinical Neuropsychology     Hybrid Journal   (Followers: 26, SJR: 0.96, h-index: 71)
Aristotelian Society Supplementary Volume     Hybrid Journal   (Followers: 2, SJR: 0.102, h-index: 20)
Arthropod Management Tests     Hybrid Journal   (Followers: 2)
Astronomy & Geophysics     Hybrid Journal   (Followers: 47, SJR: 0.144, h-index: 15)
Behavioral Ecology     Hybrid Journal   (Followers: 46, SJR: 1.698, h-index: 92)
Bioinformatics     Hybrid Journal   (Followers: 225, SJR: 4.643, h-index: 271)
Biology Methods and Protocols     Hybrid Journal  
Biology of Reproduction     Full-text available via subscription   (Followers: 9, SJR: 1.646, h-index: 149)
Biometrika     Hybrid Journal   (Followers: 18, SJR: 2.801, h-index: 90)
BioScience     Hybrid Journal   (Followers: 28, SJR: 2.374, h-index: 154)
Bioscience Horizons : The National Undergraduate Research J.     Open Access   (Followers: 1, SJR: 0.213, h-index: 9)
Biostatistics     Hybrid Journal   (Followers: 15, SJR: 1.955, h-index: 55)
BJA : British J. of Anaesthesia     Hybrid Journal   (Followers: 134, SJR: 2.314, h-index: 133)
BJA Education     Hybrid Journal   (Followers: 65, SJR: 0.272, h-index: 20)
Brain     Hybrid Journal   (Followers: 61, SJR: 6.097, h-index: 264)
Briefings in Bioinformatics     Hybrid Journal   (Followers: 44, SJR: 4.086, h-index: 73)
Briefings in Functional Genomics     Hybrid Journal   (Followers: 4, SJR: 1.771, h-index: 50)
British J. for the Philosophy of Science     Hybrid Journal   (Followers: 33, SJR: 1.267, h-index: 38)
British J. of Aesthetics     Hybrid Journal   (Followers: 24, SJR: 0.217, h-index: 18)
British J. of Criminology     Hybrid Journal   (Followers: 493, SJR: 1.373, h-index: 62)
British J. of Social Work     Hybrid Journal   (Followers: 78, SJR: 0.771, h-index: 53)
British Medical Bulletin     Hybrid Journal   (Followers: 7, SJR: 1.391, h-index: 84)
British Yearbook of Intl. Law     Hybrid Journal   (Followers: 26)
Bulletin of the London Mathematical Society     Hybrid Journal   (Followers: 3, SJR: 1.474, h-index: 31)
Cambridge J. of Economics     Hybrid Journal   (Followers: 55, SJR: 0.957, h-index: 59)
Cambridge J. of Regions, Economy and Society     Hybrid Journal   (Followers: 9, SJR: 1.067, h-index: 22)
Cambridge Quarterly     Hybrid Journal   (Followers: 10, SJR: 0.1, h-index: 7)
Capital Markets Law J.     Hybrid Journal  
Carcinogenesis     Hybrid Journal   (Followers: 2, SJR: 2.439, h-index: 167)
Cardiovascular Research     Hybrid Journal   (Followers: 11, SJR: 2.897, h-index: 175)
Cerebral Cortex     Hybrid Journal   (Followers: 38, SJR: 4.827, h-index: 192)
CESifo Economic Studies     Hybrid Journal   (Followers: 15, SJR: 0.501, h-index: 19)
Chemical Senses     Hybrid Journal   (Followers: 1, SJR: 1.436, h-index: 76)
Children and Schools     Hybrid Journal   (Followers: 5, SJR: 0.211, h-index: 18)
Chinese J. of Comparative Law     Hybrid Journal   (Followers: 3)
Chinese J. of Intl. Law     Hybrid Journal   (Followers: 19, SJR: 0.737, h-index: 11)
Chinese J. of Intl. Politics     Hybrid Journal   (Followers: 8, SJR: 1.238, h-index: 15)
Christian Bioethics: Non-Ecumenical Studies in Medical Morality     Hybrid Journal   (Followers: 11, SJR: 0.191, h-index: 8)
Classical Receptions J.     Hybrid Journal   (Followers: 17, SJR: 0.1, h-index: 3)
Clinical Infectious Diseases     Hybrid Journal   (Followers: 59, SJR: 4.742, h-index: 261)
Clinical Kidney J.     Open Access   (Followers: 4, SJR: 0.338, h-index: 19)
Community Development J.     Hybrid Journal   (Followers: 23, SJR: 0.47, h-index: 28)
Computer J.     Hybrid Journal   (Followers: 8, SJR: 0.371, h-index: 47)
Conservation Physiology     Open Access   (Followers: 1)
Contemporary Women's Writing     Hybrid Journal   (Followers: 11, SJR: 0.111, h-index: 3)
Contributions to Political Economy     Hybrid Journal   (Followers: 6, SJR: 0.313, h-index: 10)
Critical Values     Full-text available via subscription  
Current Legal Problems     Hybrid Journal   (Followers: 25)
Current Zoology     Full-text available via subscription   (SJR: 0.999, h-index: 20)
Database : The J. of Biological Databases and Curation     Open Access   (Followers: 11, SJR: 1.068, h-index: 24)
Digital Scholarship in the Humanities     Hybrid Journal   (Followers: 12)
Diplomatic History     Hybrid Journal   (Followers: 18, SJR: 0.296, h-index: 22)
DNA Research     Open Access   (Followers: 4, SJR: 2.42, h-index: 77)
Dynamics and Statistics of the Climate System     Open Access   (Followers: 2)
Early Music     Hybrid Journal   (Followers: 13, SJR: 0.124, h-index: 11)
Economic Policy     Hybrid Journal   (Followers: 51, SJR: 2.052, h-index: 52)
ELT J.     Hybrid Journal   (Followers: 25, SJR: 1.26, h-index: 23)
English Historical Review     Hybrid Journal   (Followers: 45, SJR: 0.311, h-index: 10)
English: J. of the English Association     Hybrid Journal   (Followers: 12, SJR: 0.144, h-index: 3)
Environmental Entomology     Full-text available via subscription   (Followers: 11, SJR: 0.791, h-index: 66)
Environmental Epigenetics     Open Access   (Followers: 1)
Environmental History     Hybrid Journal   (Followers: 25, SJR: 0.197, h-index: 25)
EP-Europace     Hybrid Journal   (Followers: 2, SJR: 2.201, h-index: 71)
Epidemiologic Reviews     Hybrid Journal   (Followers: 9, SJR: 3.917, h-index: 81)
ESHRE Monographs     Hybrid Journal  
Essays in Criticism     Hybrid Journal   (Followers: 15, SJR: 0.1, h-index: 6)
European Heart J.     Hybrid Journal   (Followers: 48, SJR: 6.997, h-index: 227)
European Heart J. - Cardiovascular Imaging     Hybrid Journal   (Followers: 9, SJR: 2.044, h-index: 58)
European Heart J. - Cardiovascular Pharmacotherapy     Full-text available via subscription   (Followers: 1)
European Heart J. - Quality of Care and Clinical Outcomes     Hybrid Journal  
European Heart J. Supplements     Hybrid Journal   (Followers: 8, SJR: 0.152, h-index: 31)
European J. of Cardio-Thoracic Surgery     Hybrid Journal   (Followers: 7, SJR: 1.568, h-index: 104)
European J. of Intl. Law     Hybrid Journal   (Followers: 144, SJR: 0.722, h-index: 38)
European J. of Orthodontics     Hybrid Journal   (Followers: 4, SJR: 1.09, h-index: 60)
European J. of Public Health     Hybrid Journal   (Followers: 22, SJR: 1.284, h-index: 64)
European Review of Agricultural Economics     Hybrid Journal   (Followers: 12, SJR: 1.549, h-index: 42)
European Review of Economic History     Hybrid Journal   (Followers: 25, SJR: 0.628, h-index: 24)
European Sociological Review     Hybrid Journal   (Followers: 37, SJR: 2.061, h-index: 53)
Evolution, Medicine, and Public Health     Open Access   (Followers: 11)
Family Practice     Hybrid Journal   (Followers: 13, SJR: 1.048, h-index: 77)
Fems Microbiology Ecology     Hybrid Journal   (Followers: 9, SJR: 1.687, h-index: 115)
Fems Microbiology Letters     Hybrid Journal   (Followers: 20, SJR: 1.126, h-index: 118)
Fems Microbiology Reviews     Hybrid Journal   (Followers: 25, SJR: 7.587, h-index: 150)
Fems Yeast Research     Hybrid Journal   (Followers: 13, SJR: 1.213, h-index: 66)
Foreign Policy Analysis     Hybrid Journal   (Followers: 21, SJR: 0.859, h-index: 10)
Forestry: An Intl. J. of Forest Research     Hybrid Journal   (Followers: 17, SJR: 0.903, h-index: 44)
Forum for Modern Language Studies     Hybrid Journal   (Followers: 6, SJR: 0.108, h-index: 6)
French History     Hybrid Journal   (Followers: 29, SJR: 0.123, h-index: 10)
French Studies     Hybrid Journal   (Followers: 19, SJR: 0.119, h-index: 7)
French Studies Bulletin     Hybrid Journal   (Followers: 10, SJR: 0.102, h-index: 3)
Gastroenterology Report     Open Access   (Followers: 2)
Genome Biology and Evolution     Open Access   (Followers: 10, SJR: 3.22, h-index: 39)
Geophysical J. Intl.     Hybrid Journal   (Followers: 31, SJR: 1.839, h-index: 119)
German History     Hybrid Journal   (Followers: 25, SJR: 0.437, h-index: 13)
GigaScience     Open Access   (Followers: 3)
Global Summitry     Hybrid Journal  
Glycobiology     Hybrid Journal   (Followers: 14, SJR: 1.692, h-index: 101)
Health and Social Work     Hybrid Journal   (Followers: 46, SJR: 0.505, h-index: 40)
Health Education Research     Hybrid Journal   (Followers: 12, SJR: 0.814, h-index: 80)
Health Policy and Planning     Hybrid Journal   (Followers: 21, SJR: 1.628, h-index: 66)
Health Promotion Intl.     Hybrid Journal   (Followers: 20, SJR: 0.664, h-index: 60)
History Workshop J.     Hybrid Journal   (Followers: 27, SJR: 0.313, h-index: 20)
Holocaust and Genocide Studies     Hybrid Journal   (Followers: 23, SJR: 0.115, h-index: 13)
Human Molecular Genetics     Hybrid Journal   (Followers: 9, SJR: 4.288, h-index: 233)
Human Reproduction     Hybrid Journal   (Followers: 75, SJR: 2.271, h-index: 179)
Human Reproduction Update     Hybrid Journal   (Followers: 15, SJR: 4.678, h-index: 128)
Human Rights Law Review     Hybrid Journal   (Followers: 58, SJR: 0.7, h-index: 21)
ICES J. of Marine Science: J. du Conseil     Hybrid Journal   (Followers: 53, SJR: 1.233, h-index: 88)
ICSID Review     Hybrid Journal   (Followers: 9)
ILAR J.     Hybrid Journal   (Followers: 1, SJR: 1.099, h-index: 51)
IMA J. of Applied Mathematics     Hybrid Journal   (SJR: 0.329, h-index: 26)
IMA J. of Management Mathematics     Hybrid Journal   (Followers: 2, SJR: 0.351, h-index: 20)
IMA J. of Mathematical Control and Information     Hybrid Journal   (Followers: 2, SJR: 0.661, h-index: 28)
IMA J. of Numerical Analysis - advance access     Hybrid Journal   (SJR: 2.032, h-index: 44)
Industrial and Corporate Change     Hybrid Journal   (Followers: 8, SJR: 1.37, h-index: 81)
Industrial Law J.     Hybrid Journal   (Followers: 29, SJR: 0.184, h-index: 15)
Information and Inference     Free  
Integrative and Comparative Biology     Hybrid Journal   (Followers: 7, SJR: 1.911, h-index: 90)
Interacting with Computers     Hybrid Journal   (Followers: 10, SJR: 0.529, h-index: 59)
Interactive CardioVascular and Thoracic Surgery     Hybrid Journal   (Followers: 4, SJR: 0.743, h-index: 35)
Intl. Data Privacy Law     Hybrid Journal   (Followers: 26)
Intl. Health     Hybrid Journal   (Followers: 4, SJR: 0.835, h-index: 15)
Intl. Immunology     Hybrid Journal   (Followers: 3, SJR: 1.613, h-index: 111)
Intl. J. for Quality in Health Care     Hybrid Journal   (Followers: 31, SJR: 1.593, h-index: 69)
Intl. J. of Constitutional Law     Hybrid Journal   (Followers: 59, SJR: 0.613, h-index: 19)
Intl. J. of Epidemiology     Hybrid Journal   (Followers: 116, SJR: 4.381, h-index: 145)
Intl. J. of Law and Information Technology     Hybrid Journal   (Followers: 3, SJR: 0.247, h-index: 8)
Intl. J. of Law, Policy and the Family     Hybrid Journal   (Followers: 28, SJR: 0.307, h-index: 15)
Intl. J. of Lexicography     Hybrid Journal   (Followers: 8, SJR: 0.404, h-index: 18)
Intl. J. of Low-Carbon Technologies     Open Access   (Followers: 1, SJR: 0.457, h-index: 12)
Intl. J. of Neuropsychopharmacology     Open Access   (Followers: 3, SJR: 1.69, h-index: 79)
Intl. J. of Public Opinion Research     Hybrid Journal   (Followers: 8, SJR: 0.906, h-index: 33)
Intl. J. of Refugee Law     Hybrid Journal   (Followers: 32, SJR: 0.231, h-index: 21)
Intl. J. of Transitional Justice     Hybrid Journal   (Followers: 13, SJR: 0.833, h-index: 12)
Intl. Mathematics Research Notices     Hybrid Journal   (Followers: 1, SJR: 2.052, h-index: 42)
Intl. Political Sociology     Hybrid Journal   (Followers: 25, SJR: 1.339, h-index: 19)
Intl. Relations of the Asia-Pacific     Hybrid Journal   (Followers: 17, SJR: 0.539, h-index: 17)
Intl. Studies Perspectives     Hybrid Journal   (Followers: 7, SJR: 0.998, h-index: 28)
Intl. Studies Quarterly     Hybrid Journal   (Followers: 34, SJR: 2.184, h-index: 68)
Intl. Studies Review     Hybrid Journal   (Followers: 17, SJR: 0.783, h-index: 38)
ISLE: Interdisciplinary Studies in Literature and Environment     Hybrid Journal   (Followers: 1, SJR: 0.155, h-index: 4)
ITNOW     Hybrid Journal   (Followers: 2, SJR: 0.102, h-index: 4)
J. of African Economies     Hybrid Journal   (Followers: 15, SJR: 0.647, h-index: 30)
J. of American History     Hybrid Journal   (Followers: 38, SJR: 0.286, h-index: 34)
J. of Analytical Toxicology     Hybrid Journal   (Followers: 13, SJR: 1.038, h-index: 60)
J. of Antimicrobial Chemotherapy     Hybrid Journal   (Followers: 18, SJR: 2.157, h-index: 149)
J. of Antitrust Enforcement     Hybrid Journal   (Followers: 1)
J. of Applied Poultry Research     Hybrid Journal   (Followers: 3, SJR: 0.563, h-index: 43)
J. of Biochemistry     Hybrid Journal   (Followers: 44, SJR: 1.341, h-index: 96)
J. of Chromatographic Science     Hybrid Journal   (Followers: 16, SJR: 0.448, h-index: 42)
J. of Church and State     Hybrid Journal   (Followers: 11, SJR: 0.167, h-index: 11)
J. of Competition Law and Economics     Hybrid Journal   (Followers: 34, SJR: 0.442, h-index: 16)
J. of Complex Networks     Hybrid Journal   (Followers: 1, SJR: 1.165, h-index: 5)
J. of Conflict and Security Law     Hybrid Journal   (Followers: 11, SJR: 0.196, h-index: 15)
J. of Consumer Research     Full-text available via subscription   (Followers: 39, SJR: 4.896, h-index: 121)
J. of Crohn's and Colitis     Hybrid Journal   (Followers: 9, SJR: 1.543, h-index: 37)
J. of Cybersecurity     Hybrid Journal   (Followers: 3)
J. of Deaf Studies and Deaf Education     Hybrid Journal   (Followers: 8, SJR: 0.69, h-index: 36)
J. of Design History     Hybrid Journal   (Followers: 15, SJR: 0.166, h-index: 14)
J. of Economic Entomology     Full-text available via subscription   (Followers: 6, SJR: 0.894, h-index: 76)
J. of Economic Geography     Hybrid Journal   (Followers: 33, SJR: 2.909, h-index: 69)
J. of Environmental Law     Hybrid Journal   (Followers: 23, SJR: 0.457, h-index: 20)
J. of European Competition Law & Practice     Hybrid Journal   (Followers: 19)
J. of Experimental Botany     Hybrid Journal   (Followers: 13, SJR: 2.798, h-index: 163)
J. of Financial Econometrics     Hybrid Journal   (Followers: 21, SJR: 1.314, h-index: 27)
J. of Global Security Studies     Hybrid Journal   (Followers: 2)
J. of Heredity     Hybrid Journal   (Followers: 3, SJR: 1.024, h-index: 76)
J. of Hindu Studies     Hybrid Journal   (Followers: 7, SJR: 0.186, h-index: 3)
J. of Hip Preservation Surgery     Open Access  
J. of Human Rights Practice     Hybrid Journal   (Followers: 20, SJR: 0.399, h-index: 10)
J. of Infectious Diseases     Hybrid Journal   (Followers: 40, SJR: 4, h-index: 209)
J. of Insect Science     Open Access   (Followers: 10, SJR: 0.388, h-index: 31)
J. of Integrated Pest Management     Open Access   (Followers: 1)

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Journal Cover Journal of Applied Poultry Research
  [SJR: 0.563]   [H-I: 43]   [3 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 1056-6171 - ISSN (Online) 1537-0437
   Published by Oxford University Press Homepage  [369 journals]
  • Evaluation of efficacy of Vero cell-adapted, thermostable Newcastle
           disease vaccine in broilers
    • Authors: Siddique FF; Mahmood MS, Hussain II, et al.
      Abstract: AbstractThe main theme of this project was to develop a Vero cell-adapted, thermostable NDV I-2 vaccine and evaluate its efficacy against challenge infection. For this purpose, serial passages of virus were done in Vero cell line up to 13 times and after each passage samples were subjected to heat treatment at 56°C for 40 min. After 13 passages, the virus was completely adapted on Vero cell line and cytopathic effects were observed, including syncytial formation, rounding, degeneration, and detachment of cells. Hemagglutination and infectivity titers showed that the virus was thermostable after each passages in Vero cell line. One-day-old broiler chicks (Group 1) were vaccinated orally with thermostable NDV I-2 vaccine. A commercially available thermolabile NDV LaSota was used in Group 2 used as positive control. NDV I-2 vaccine produced maximum % inhibition migration at d 6 (50%) as compared with LaSota ND vaccine (i.e., 32%). On encounter with virulent NDV I-2, 100% safety was accomplished in group 1 and 60% in case of group 2. All the birds in the control negative group had died. This study led to the conclusion that thermostable Vero cell adapted I-2 strain vaccine resulted in better immunization in broiler birds than obtained by the use of commercially available thermolabile vaccines.
      PubDate: 2016-12-02
       
  • Development of cooked and smoked chicken sausage with reduced sodium and
           fat
    • Authors: Schmidt MM; Dornelles RP, Vidal AR, et al.
      Abstract: AbstractThe objective of this study was to evaluate the effects of adding collagen (0.5 to 1.0%) and the partial replacement of sodium chloride (0.25 to 1.0%) with a salt substitute mixture (50% KCl, 25% MgCl2, and 25% CaCl2), on the physicochemical characteristics and the rheological and technological properties of cooked and smoked chicken sausage with reduced fat and sodium. For the preparation of sausages, it was decided to use a 23 central composite design with 4 replications in the central point. The results indicated that the addition of collagen fiber and the substitution of salt by the proposed mixture significantly altered the moisture levels of the sausage as a result of higher or lower salt concentrations. The reformulation of the product directly affected the Aw, the final pH, and the level of sodium chloride, and it also led to significant changes in the texture of the product; however, these changes did not affect the sensory acceptance of the product. The best results were found for the F1 formulation (with 0.5% collagen fiber, 0.25% of mixture, and 0.25% of salt), which resulted in 53% reduction in fat and 29% reduction in sodium without compromising the hardness, chewiness, color, and sensory acceptance, when compared with the formulations with higher salt content. The results of the sensory evaluation showed that the partial replacement of salt by the mixture (50% KCl, 25% MgCl2, and 25% CaCl2) and the partial replacement of fat by collagen were viable.
      PubDate: 2016-11-11
       
  • Efficacy of chlorine dioxide gas in reducing Escherichia coli and
           Salmonella from broiler house environments
    • Authors: Ahmed S; Bostami A, Mun H, et al.
      Abstract: AbstractEscherichia coli and Salmonella spp. are considered to be the major pathogens associated with human transmissible infectious diseases in the air of poultry houses. Chlorine dioxide (ClO2) is an effective biocide against a wide range of microorganisms. Accordingly, this study investigated the efficiency of gaseous ClO2 application for disinfecting broiler houses by collecting air samples before and after fumigation using a passive method. Fumigation was performed with 125 mL or 250 mL of ClO2 liquid (containing 2,000 ppm of ClO2) and 3 trials were conducted for each dose. A total of 27 petri dishes were used for each trial (for each type of bacteria: E. coli or Salmonella) and placed in 3 different locations (front, middle and back) and 3 different positions (top, middle and floor) of the broiler shed. Air samples were collected at 10 min, 1 h, 3 h, 6 h, and 12 h before and after fumigation to evaluate the air quality in terms of the concentration of E. coli and Salmonella. Both levels of ClO2 were capable of reducing the concentration of E. coli from broiler house air during all measuring periods except 10 min, with highest disinfection rate being observed at 6 h. With the exception of 1 h, the concentration of Salmonella was also reduced after fumigation with ClO2 in all measuring period; with the highest disinfection rate occurring at 6 h. Fumigation with ClO2 had no negative effect on birds’ health condition. Taken together, these results suggest that the application of gaseous ClO2 at the investigated levels can be an effective option for reducing bacterial load from broiler house environments.
      PubDate: 2016-10-04
       
  • Abnormal characteristics of eggs laid by hens fed with high levels of
           cottonseed meal
    • Authors: Qi MM; Sun Lh, Guo JJ, et al.
      Abstract: AbstractIn China, consumers sometimes get special eggs, which are characterized by the pasty, firm, and elastic texture of yolk from hard-boiled eggs and are usually called “rubber eggs” by Chinese customers. Consumers do not like the texture of rubber eggs and often associate the odd texture of the yolk to food safety risks. The objective of this study was to assess the physical and chemical characteristics of these eggs. A total of 200 46-week-old Hy-Line Brown laying hens were divided into 2 groups and were fed for 2 weeks. One group was fed on a corn-soybean meal based diet (BD) and served as control whereas the second group's diet contained 6% cottonseed meal (CSM), which was in replacement of the SBW. The yolks of hard-cooked eggs of the CSM group had harder and more elastic yolks than those of the control group (P < 0.05). Also, the levels of stearic and myristic acids in the yolk of the CSM group also were increased (P < 0.01), while the myristoleic, pentadecanoic, arachidic, cis-11-eicosenoic and cis-11, 14-eicosadienoic acids and crude protein, fat, phospholipids, chloride, calcium, and iron were decreased (P < 0.05). In conclusion, hens fed a diet that was incorporated with 6% cottonseed meal laid eggs that had unique physical and chemical characteristics and lower nutritional values. These results might help to guide limited incorporation of CSM in laying hen diet, and provide some evidences on the mechanism of the observed physical and chemical changes.
      PubDate: 2016-09-24
       
  • The effect of poultry litter biochar on pellet quality, one to 21 d
           broiler performance, digesta viscosity, bone mineralization, and apparent
           ileal amino acid digestibility
    • Authors: Evans AM; Boney JW, Moritz JS.
      Abstract: AbstractFeeding poultry litter biochar (PLB), a product resulting from litter gasification, could decrease diet cost, maintain broiler growth performance, and decrease land application of manure. Past research observed improved pellet quality and mineral availability with dietary inclusions of 6 to 7% PLB; however, broiler performance was decreased, likely due from toxic-heavy-metal content (e.g., 99 ppm arsenic) and increased digesta viscosity of the particular PLB. The objective of the current study was to assess lower dietary inclusions of PLB, with decreased toxic-heavy-metal content, on descriptive feed manufacture, broiler performance, digesta viscosity, bone mineralization, and apparent ileal amino acid digestibility (AIAAD). Treatments were arranged as a Diet Formulation x Phytase Addition factorial in a randomized complete block design with 8 replications per treatment. Four dietary formulations were produced: positive control (PC) with 0.45% non phytate phosphorus (nPP), negative control with 0.23% nPP, and 2 or 4% PLB with 0.45% nPP. Phytase was either included at 9,500 ftu/kg or withheld. There were 8 treatments total. Contrasts comparing PC and 2 or 4% PLB also were conducted. Diets were pelleted and crumbled prior to feeding. Positive and negative control formulations and phytase addition affected bird performance as expected. Birds fed 2% PLB had increased FCR and birds fed 4% PLB had decreased LWG when compared to PC (P < 0.05). However, these performance deficiencies were corrected with phytase inclusion. Birds fed diets with PLB had similar tibia measures compared to the PC. No significant main effects, interactions, or contrast comparisons were observed for viscosity data. The incorporation of PLB into formulations without phytase increased diet AIAAD of some amino acids relative to the corresponding PC (P < 0.05). A lower toxic-heavy-metal PLB product (e.g., 22 ppm arsenic) provided available minerals and amino acids to diets, but performance similar to PC necessitated the addition of phytase.
      PubDate: 2016-09-17
       
  • Influence of a yeast fermented product on the serum levels of the
           mannan-binding lectin and the antibodies against the Newcastle disease
           virus in Ross broilers
    • Authors: Cortés-Coronado RF; Gómez-Rosales SS, Angeles ML, et al.
      Abstract: AbstractThe objective of this research was to evaluate the serum concentrations of mannan-binding lectin (MBL) at different ages in Ross broilers fed increasing amounts of a yeast-fermented product (YFP) and inoculated with a vaccine against Newcastle disease virus (NDV). Eighty mixed Ross B308 broilers were individually housed. Groups of 20 broilers were randomly assigned to 4 dietary levels of YFP (0, 400, 800, and 1,600 ppm). Serum concentrations of MBL were determined on d 17, 21, 28, and 35. At 21 d, birds were vaccinated against NDV and the titers of antibodies (Ab) against NDV were determined at 35 d of age. There was not changes in the concentrations of MBL due to the increasing levels of dietary YFP, but showed a steady decrease across the sampling d. The NDV-specific Ab titers showed the lowest titers at the highest dietary YFP. Broilers with low (LMBL) and high (HMBL) concentrations of MBL were observed, which exhibited different patterns on the Ab titers against NDV in respect to the increasing levels of dietary YFP. This was also observed when the gender effect was introduced in the analysis of data. The results suggest that in Ross broilers raised in commercial conditions the presence of low Ab titers after a vaccination may be partially caused by factors such as the frequency of LMBL and HMBL chickens, the proportion of females and males in the flock and the additions of dietary growth promoters like YFP.
      PubDate: 2016-09-09
       
  • New versus old broiler housing technology: Which leads to greater
           profit?
    • Authors: Gillespie JJ; Nehring RR, Hallahan CC.
      Abstract: AbstractThe method of matching samples was used to compare the costs and returns associated with broiler housing technology using Agricultural Resource Management Survey data for 2006 and 2011. Farms with housing that included tunnel ventilation and evaporative cooling cells (new technology) were compared with farms with housing that did not include this technology (old technology). Gross farm income, total variable expenses, and total fixed expenses were higher for the new technology farms for both years. New technology farms had greater income over variable expenses and net cash farm income in both years.
      PubDate: 2016-09-09
       
  • Effects of various feed additive strategies on broilers given 10×
           live coccidiosis vaccine
    • Authors: Cardenas CC; Zhai WW, Wamsley KS.
      Abstract: AbstractCurrently, there is a need to investigate feed additive application strategies, especially those used in conjunction with live coccidiosis vaccines (LCV). The objective of this study was to determine the effects of the inclusion strategies of several commercially available feed additives using broilers sprayed with 10× live coccidiosis vaccines (LCV) throughout a 49 d grow-out. All birds received 10× LCV on d of hatch, excluding treatment (Trt) 1, the unmedicated negative control (NC). The positive control (PC; Trt 2), was also unmedicated, but birds were sprayed with 10× LCV. Birds assigned Trts 3 to 8 also received LCV, and diets consisted of the following additives: Virginiamycin (VA) at 20 g/t throughout with Salinomycin (SAL) at 40 g/t from d 14 to 28 (Trt 3); VA at 20 g/t throughout d zero to 49 (Trt 4); a Bacillus subtilis probiotic (PRO) with Bacitracin Methylene Disalicyalte (BMD) at 50 g/t from d zero to 49 (Trt 5); an herb and essential oil blend (EB) from d zero to 49 (Trt 6); BMD at 50 g/t throughout with an increased dose (200 g/t) from d 14 to 28 (Trt 7); and BMD at 50 g/t throughout with SAL (40 g/t) from d 14 to 28 (Trt 8). In general, birds fed Trts 3 and 7 demonstrated increased BW and BW gain when compared to those fed Trt 2 (NC). Birds fed Trt 5 exhibited similar d 49 BW to that of birds fed Trt 3 and 7 — however, better than those fed Trt 2. Of these Trts, birds fed Trt 3 demonstrated at d 17 increased ileal digesta viscosity and reduced lesion scores caused by Eimeria acervulina, although overall scores were low. Gastrointestinal organ measurements and morphology at d 17 were not significantly affected by Trt. Overall, these data suggest that feed additive strategies utilized in Trts 3, 5, and 7 are a viable option with using LCV.
      PubDate: 2016-09-08
       
  • Effect of air velocity on deep body temperature and weight gain in the
           broiler chicken
    • Authors: Hamrita TK; Conway RH.
      Abstract: AbstractTunnel ventilation has been adopted as an effective approach to combatting heat stress in poultry. Setting tunnel air velocity to levels that ensure bird comfort, while optimizing performance is an important goal. In recent years, biotelemetry has provided a way to effectively evaluate the impact of management practices on poultry physiology. In this study, we present an approach for evaluating the effects of heat stress and tunnel ventilation on poultry deep body temperature (DBT) using biotelemetry. Three consecutive experiments were conducted using 6 broilers, each at the ages of 8.6, 9.0, and 9.4 wk. Experiments spanned approximately 12 h each and led to 18 data sets. DBT responses of birds under no ventilation rose by as much as 3°C as a result of step increases in ambient temperature. Birds exposed to tunnel ventilation maintained a lower DBT by as much as 0.9°C. During experiment days, birds exposed to tunnel ventilation consistently gained weight with a percentage weight gain ranging from 1% to 11%. Birds not exposed to tunnel ventilation behaved less consistently with some gaining as much as 14% while others lost as much as 9%. Although further studies are required to derive more comprehensive and more statistically significant results, this study provided preliminary data that is needed to warrant such studies, and a stepping stone for making optimal management and risk assessment decisions that are based on physiological needs of the birds.
      PubDate: 2016-09-06
       
  • Campylobacter detection in broiler ceca at processing: A three-year,
           211-flock survey 1
    • Authors: Berrang ME; Meinersmann RJ, Ladely SR, et al.
      Abstract: AbstractCampylobacter is associated with live broilers and chicken meat products. There is some discussion in the literature about the possibility that Campylobacter prevalence in broilers could be affected by season or weather conditions. The objective of this study was to measure the flock prevalence of Campylobacter by sampling cecal contents from multiple flocks in one commercial slaughter plant over the course of 3 years. Two-hundred-and eleven discrete cecal samples, each from a different flock, were cultured for Campylobacter. Weather data, collected daily at a nearby University of Georgia experiment station, was used for testing for potential relationships between environmental conditions and Campylobacter detection. Fifty-five percent of flocks were found to be Campylobacter-positive. No clear trend was uncovered for Campylobacter prevalence related to mo of yr or daily maximum temperature. Furthermore, no significant relationship was noted between prevalence of Campylobacter and rainfall on the d of slaughter (P = 0.52) or the total rainfall during the grow-out period (P = 0.37).
      PubDate: 2016-09-06
       
  • Growth and meat yield responses of Ross × Ross 708 male broilers fed
           diets formulated with distillers dried grains with solubles varying in
           ether extract content and inclusion rate from 1 to 49 days of age 1
    • Authors: Dozier WA; III, McCafferty KK, Hess JB.
      Abstract: AbstractAn experiment was conducted to evaluate the effects of diets containing low-, moderate-, or high-oil dried distillers dried grains with solubles (DDGS) included at conventional- or increased-inclusion rates fed to 1,500 Ross × Ross 708 male broilers that were assigned to 60 floor pens from 1 to 49 d of age. Three sources of DDGS had ether extract composition of 6.06, 8.80, or 11.59%, on dry matter (DM) basis, representing low-oil, moderate-oil, or high-oil DDGS, respectively. Diets were formulated to contain corn, soybean meal, animal protein meal as the primary ingredients, and 1 of the 3 DDGS sources at either 5, 7, 9, or 11% (conventional-inclusion rate) and 8, 10, 12, or 14% (increased-inclusion rate) in the starter (1 to 14 d), grower (15 to 24 d), finisher 1 (25 to 34 d), and finisher 2 (35 to 49 d) periods, respectively. Apparent MEn (low-oil:1,975, moderate-oil: 2,644, and high-oil: 3,137 kcal/kg) and digestible amino acid (AA) values of the 3 DDGS sources were determined from previous research. No differences were detected for cumulative BW gain and feed conversion 1 to 49 d of age or meat yields at 50 d of age. Feeding broilers diets containing the low-oil DDGS source increased feed cost per BW gain and breast meat weight of $0.025/kg and $0.004/kg compared with birds fed diets containing high-oil DDGS or moderate-oil and high-oil DDGS sources, respectively. These data indicated that DDGS source and inclusion rate did not affect cumulative growth and carcass characteristics of broilers from 1 to 50 d of age but demonstrate differences in feed cost/BW gain and feed cost/breast meat weight.
      PubDate: 2016-09-06
       
  • Flue gas desulfurization gypsum: Its effectiveness as an alternative
           bedding material for broiler production
    • Authors: Watts DB; Hess JB, Bilgili SF, et al.
      Abstract: AbstractFlue gas desulfurization (FGD) gypsum may be a viable low-cost alternative bedding material for broiler production. In order to evaluate FGD gypsum's viability, a study was conducted to determine its influence on live performance (body weight, feed consumption, feed efficiency, and footpad dermatitis), litter characteristics (caking, moisture percentage, and surface temperature) and ammonia volatilization in 3 successive flocks. FGD gypsum was compared with pine shaving (PS), pine bark (PB), PS + FGD gypsum (second material was top dressed over first), PB + FGD gypsum, PS + PB, FGD gypsum + PS, and FGD gypsum + PB. Bedding had no significant influence on feed consumption (FC), feed efficiency (FE), and mortality (M). Body weight and adjusted feed efficiency (AFE) were significantly lower with FGD gypsum compared to that of PS for flock 1, with no differences being observed among the other bedding materials. No differences were noted in live performance for flocks 2 or 3. Incidences of footpad lesions were lower with FGD gypsum than the other bedding materials, but only for flock 1. Bedding treatment had no influence on litter surface temperature. Gravimetric moisture content of gypsum treatments was lower than that of non-gypsum treatments; however, visually, the FGD gypsum was more compacted and had a surface crust. Reductions in ammonia volatilization also were observed during the initial flock with FGD gypsum; however, its effectiveness had diminished by flock 2 and 3.
      PubDate: 2016-09-06
       
  • The effect of dietary lysozyme with EDTA on growth performance and
           intestinal microbiota of broiler chickens in each period of the growth
           cycle
    • Authors: Gong MM; Anderson DD, Rathgeber BB, et al.
      Abstract: AbstractLysozyme is a potential replacement for antibiotics in the poultry industry. Two trials were conducted using new or used litter to determine the effect of 100 ppm lysozyme in feed on growth performance and intestinal microbiota of broiler chickens in each period of the growth cycle. The new litter trial and used litter trial were each analyzed as a one-way analysis of variance with length of time in which 100 ppm lysozyme was fed to the birds as the main factor (no lysozyme d zero to 35; positive lysozyme d zero to 4; positive lysozyme d 5 to 14; positive lysozyme d 15 to 24; positive lysozyme d 25 to 35; positive lysozyme d zero to 35; positive virginiamycin d zero to 35). Effects of lysozyme were not detected under clean conditions (P > 0.05). When used litter was provided, growth performance was not improved by lysozyme (P > 0.05). However, feeding lysozyme to birds from d 5 to 14 and throughout the trial reduced the number of E. coli in the ileum compared with feeding virginiamycin (positive lysozyme d 5 to 14 and zero to 35, and virginiamycin d zero to 35: 1.7 × 104 cfu g−1, 1.9 × 104 cfu g−1 and 9.3 × 104 cfu g−1, respectively) to birds (P < 0.05). Dietary lysozyme at 100 ppm can change intestinal microbiota of broiler chickens.
      PubDate: 2016-08-25
       
  • Evaluation of a thermotolerant xylanase on broiler growth performance and
           dietary ileal digestible energy value
    • Authors: Flores CA; Williams MP, Smith KK, et al.
      Abstract: AbstractTwo experiments were conducted to evaluate the impact of a thermotolerant xylanase on male broiler performance and dietary ileal digestible energy (IDE). The first experiment consisted of 3 treatment groups with 12 replications per treatment each containing 35 Cobb 500 males for a total of 1,260 broilers placed in floor pens for a 42 d grow-out. The experiment treatments included a corn/soy diet with DDGS control formulated at a low energy level, and the control supplemented with one of 2 concentrations of xylanase (20,000 XU/kg [XYL20] and 40,000 XU/kg [XYL40]). No significant differences in body weight were observed with the inclusion of xylanase when compared to the control diet throughout the experiment. At d 28, the inclusion of XYL20 improved (P < 0.05) mortality corrected feed conversion ratio (FCR) compared to the control diet. Feed conversion ratio was also improved (P < 0.01) at d 42 for birds fed XYL20 when compared to the control. At d 42, inclusion of XYL20 and XYL40 significantly (P < 0.05) increased IDE compared to the control. Experiment 2 consisted of 4 treatment groups with 10 replications per treatment each containing 44 Cobb 500 males for a total of 1,760 broilers placed in floor pens for a 41 d grow-out. The dietary treatments included a positive control (PC) based on a corn/soy diet containing DDGS and phytase, a negative control (NC) diet (PC -150 kcal/kg in AME), NC + xylanase at 10,000 XU/kg (XYL10), and NC + xylanase at 20,000 XU/kg (XYL20). A significant increase (P < 0.05) in BW was observed in broilers fed the inclusion of XYL20 in the NC diet increased (P < 0.05) on d 14. A significant increase in cumulative body weight gain was observed on d 27 and d 41 with xylanase (XYL20) inclusion compared to the NC. These data demonstrate that xylanase inclusion increased energy utilization through improvements in IDE, which improved broiler performance.
      PubDate: 2016-08-25
       
  • Using locally produced millet as a feed ingredient for poultry production
           in Sub-Saharan Africa
    • Authors: Cisse RS; Hamburg JD, Freeman ME, et al.
      Abstract: AbstractUsing locally produced feedstuffs for poultry production in developing countries can greatly lower production costs. Pearl millet is a drought-resistant plant that produces a nutritious grain. Its cultivation in Mali spans thousands of years, but the suitability of the millet grain currently produced in Mali for poultry production is unknown. Therefore, the nutrient composition of 7 different, widely available varieties of pearl millet grown in Mali was assessed before completing experiments in which laying hens or broilers were fed diets containing 0, 14, 28, or 43% whole pearl millet. The 7 varieties of pearl millet grown in different regions of Mali all had protein concentrations that were better than corn and had apparent digestible amino acid coefficients similar to corn. The nitrogen-corrected true metabolizable energy values ranged from 3,395 to 3,738 Kcal/kg on an as-is basis. Egg production and egg weight did not differ between the hens fed the different levels of millet through out a 16-wk experiment. Broilers fed the highest level of pearl millet from 1 to 42 d of age gained less (3.088 versus 2.949 kg) body weight than those fed the control diet. However, body weight gains did not differ between the broilers fed the control diet and the diets containing 14 or 28% whole millet. The results indicate that Malian-grown pearl millet would be an effective feed ingredient for poultry production and that this small seed could be added in whole form into laying hen and broiler diets.
      PubDate: 2016-08-25
       
 
 
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