[Effect of supplemental protein sources with varying by pass protein content in sheep ration]
1999
Maramis | Rossi, E.
The objective of this work was to study the effect of supplemental protein/N sources with varying by-pass protein content in ration. Eighteen local growing sheep (8-12 kg of body weight) were randomly assigned of three dietary treatments in Randomized Block Design. The treatments consisted of three diets (crude protein/CP average and total digestible nutrient/TDN average 67 percent) containing different protein sources with varying by-pass protein content. They were A = Urea (100 percent N degraded/0 percent by-pass protein), B = Soybean meal (60 percent CP degraded /40 percent by-pass protein) and C = Blood meal (18 percent CP degraded/82 percent by-pass protein). The effect of protein sources with varying by-pass protein level on dry matter (DM) and CP consumption, and average daily gain were highly significant different (P less than 0.01) and on N retention were significant different (P less than 0.05). However, no response (P more than 0.05) were observed on DM and CP digestibility and feed efficiency. In conclusion, DM and CP comsumption, N retention, while average daily gain was increased by supplementing protein sources containing high by-pass protein, but this supplement did not affect DM and CP digestibility and feed efficiency
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