Effect of forage sweet sorghum silage instead of silage corn on nutrient digestibility, body weight gain of lambs

doi:10.14088/j.cnki.issn0439-8114.2020.16.024

Abstract

Abstract: In order to study the effect of forage sweet sorghum silage instead of silage corn on lamb performance and nutrient digestion and metabolism. Thirty 3-month-old （28.10±0.32 kg） healthy weaned lambs were randomly divided into three groups （I was corn silage group, II was sweet sorghum corn silage group, III was sweet sorghum silage group）, each group had 10 lambs, and were fed and digested separately. The results showed that there was no significant effect on the performance of lambs （P>0.05）. The apparent digestibility of group Ⅱ was significantly higher than that of group Ⅲ （P<0.01）, while the different between that of groupⅠand group Ⅱ was not significant （P>0.05）. Lamb had no significant effect on the apparent digestibility of other nutrients in corn silage and 50% sweet sorghum silage instead of 50% corn silage （P>0.05）, but had no significant effect on other nutrients. The results showed that sweet sorghum silage can be used as high quality feed for meat sheep, and 50% of sweet sorghum straw and silage can replace corn silage respectively, which can improve the N retention rate and CP digestibility of lamb.

Key words: forage sweet sorghum silage, silage corn, lambs, production performance, digestion and metabolism

CLC Number:

S816.5

WANG Hong-bo, LI Wei-hong, YANG Xiao-ling, GAO Ya-qin, XI Bin. Effect of forage sweet sorghum silage instead of silage corn on nutrient digestibility, body weight gain of lambs[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(16): 112-114.

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