Evaluation of different protein sources and content on rumen fermentation and blood parameters performance of holstein cows’ lactation
Abstract
Four lactating Holstein cows were used in a 4x4 Latin Square design to evaluate the effects of levels (10.5% vs. 13.7%) and sources (soybean meal - SBM vs. urea - U) of protein on lactation performance, rumen fermentation and blood parameters. The treatments were: (A) 10.05% CP diet - SBM; (B) 10.05% CP diet - U; (C) 13.70% CP diet - SBM+U; (D) 13.70% CP diet - SBM. Dry matter intake, feed efficiency, milk production, milk protein content and yield were not affected (p > 0.05) by treatments. Milk fat content increased (p < 0.05) with 10.05% CP - U diet (treatment B). The increase of dietary crude protein content increased (p < 0.05) ruminal ammonia N, PUN, total VFA and decreased (p < 0.05) ruminal acetate.Downloads
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Published
2008-04-29
How to Cite
Imaizumi, H., Santos, F. A. P., Pires, A. V., Nussio, C. M. B., Barnabé, Éberson C., & Juchem, S. de O. (2008). Evaluation of different protein sources and content on rumen fermentation and blood parameters performance of holstein cows’ lactation. Acta Scientiarum. Animal Sciences, 24, 1031-1037. https://doi.org/10.4025/actascianimsci.v24i0.2522
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Section
Animal Science
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0.9
2019CiteScore
29th percentile
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