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- Title
棕榈粕替代部分玉米对藏羊母羊小肠形态发育、消化酶活性及抗氧化功能的影响.
- Authors
周力; 侯生珍; 王志有; 杨葆春; 韩丽娟; 桂林生
- Abstract
This experiment explored the effects on jejunum histomorphology, digestive enzyme activity, pH, lipopolysaccharide levels and antioxidant enzyme activity of substituting the maize component of a concentrate diet with palm meal in female Tibetan sheep. Well bred female Tibetan sheep aged 2-3 months with similar initial weight and in good health were randomly divided into four treatment groups of 30 animals, each comprising six replicate groups of 5 sheep. In the four treatment groups, 0%, 15%, 18% or 21% palm meal were fed to replace maize in the concentrate for a test period is 97 days. It was found that: 1) There were no significant differences in villus height, villus width, crypt depth, mucosal thickness and villus height∶crypt depth between the 0% and 15% maize groups (P>0.05); 2) The activities of α-amylase, cellulase, lipase and chymotrypsin in the jejunum in the 0% maize group were significantly lower than those in 15% maize group (P<0.05 or P<0.01). 3) The activities of glutathione peroxidase and catalase in the jejunum in the 0% maize group were significantly lower than those in the 15% and 18% maize groups (P<0.05), but did not differ significantly from the 21% maize group (P>0.05); 4) The jejunum concentrations of lipopolysaccharide in the 18% and 21% maize groups were significantly higher than in the 0% maize group (P<0.05 or P<0.01), but there was no significant difference compared with the 15% group (P>0.05). In conclusion, palm meal can partially replace maize to feed Tibetan ewes, and the recommended maize substitution rate is 15%.
- Publication
Acta Prataculturae Sinica, 2023, Vol 32, Issue 3, p118
- ISSN
1004-5759
- Publication type
Article
- DOI
10.11686/cyxb2022126