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International Journal of Dairy Science
Journal Prestige (SJR): 0.165

Citation Impact (citeScore): 1
Number of Followers: 5

This is an Open Access Journal

Open Access journal
ISSN (Print) 1811-9743 - ISSN (Online) 1811-9751
Published by Science Alert

[61 journals]

Impact of Replacing Concentrated Ingredients by Azolla Plant on Dairy
Cattle Performance
- Abstract: Background and Objective: Azolla is a small aquatic fern that has gained attention as a potential feed source for dairy cattle. So, the present study aimed to explore the effect of partially substituting dry Azolla to replace part of the concentrated feed mixture (CFM) in Holstein dairy cows’ diets. Materials and Methods: About 12 Holstein dairy cows (450±40 kg live body weight, 2nd milk season, 20±3 kg daily milk yield), divided into three groups (4 animals per each group) to examine the effects of the three treatment groups based on swing over method technique in dairy cattle trials. First treatment (control) fed CFM without any addition, treatment (R1) 1.2 kg of dry Azolla replaced 1.5 kg of CFM and treatment (R2) 2.4 kg of Azolla replaced 3 kg of CFM. The trial lasted for 12 weeks; thus, milk production was recorded daily and milk samples were taken every 21 days. Results: There was a significant difference (p>0.05) in nutrients digestibility between the experimental diets in every nutrient, except for digestible crude protein, dry matter, organic matter, crude fiber and nitrogen-free extract all had digestion coefficient values that were higher with control than with R1 or R2. The data shows a significant increase in milk yield with 2.4 kg of Azolla and a 4.92 and 3.10% increase in fat-corrected milk when 1.2 kg of Azolla replaces concentrated feeds. Blood parameters were in the normal range for all animals inside the experimental groups. Conclusion: Including Azolla in dairy cattle rations could positively affect milk yield without altering milk composition, blood parameters and digestion coefficients.
  PubDate: 02 December, 2023

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