Effect of different dietary protein sources on digestibility and growth performance parameters in lambs

Autor: M. I. Mohamed, A. A. Abedo, M. M. Shoukry., Hashem H. H. Abd El-Rahman, Y. A.A. El-Nomeary, Fatma M. Salman
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Bulletin of the National Research Centre, Vol 45, Iss 1, Pp 1-11 (2021)
ISSN: 2522-8307
Popis: Background The aim of this study is a comparison between some different protein sources in sheep rations to identify the best protein source that achieves the highest production performance and the lowest economical feed efficiency. Twenty Farafra male lambs weighed on average 41.39 ± 1.66 kg were divided randomly into four similar groups of 5 animals each. All groups were fed on concentrate feed mixture (CFM) at 3% of their body weight, and wheat straw fed ad lib. to replace 100% of the soybean meal (SBM) as a source of protein, black cumin seed meal (BCSM), cottonseed meal (CSM) and sesame seed meal (SSM) were incorporated into the CFM. The feeding trial extended for 66 days followed by digestibility and nitrogen (N) balance trials. Results The results indicated no difference in total feed intake between experimental groups. Digestibility of crude protein, ether extract and crude fiber for animals fed CSM ration was higher (p p p Conclusion It could be concluded that cottonseed meal was the best treatment for digestibility coefficient, average daily gain, highest nitrogen balance, better feed conversion ratio and also the best economic efficiency compared to soybean meal, black cumin seed meal and sesame seed meal treatments. It can replace 100% soybean meal by cottonseed meal in sheep ration when economics is to be considered.
Databáze: OpenAIRE
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