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- Title
饲粮能量水平对高原型藏羊生长性能、血清生化指标及肉品质的影响.
- Authors
雪雅妮
- Abstract
To investigate the effects of dietary energy levels on the production performance, serum biochemical indicators, and meat quality characteristics of Tibetan lambs, sixty 2-month-old well-developed Tibetan lambs with similar initial body weight [(19.35±2.18) kg] were selected and randomly divided into three groups, with 20 lambs in each group. Diets with energy levels of 9.49 MJ/kg (L group), 10.51 MJ/kg (M group), and 11.52 MJ/kg (H group) were fed, with a pre trial period of 10 days and a trial period of 60 days. The results showed that the final body weight and average daily gain of group H were significantly higher than those of group L (P<0.05), and the feed to weight ratio was significantly lower than that of group L (P<0.05). The serum total protein and glucose levels in group H were significantly higher than those in group L (P<0.05), while the serum triglyceride levels in group L were significantly higher than those in the other two groups (P<0.05). The total antioxidant capacity content in the muscles of group H was significantly higher than that of group L and group M (P<0.05), and the content of malondialdehyde in the muscles was significantly lower than that of group L (P<0.05). There were no significant differences in muscle pH45 min, brightness value (L* value), redness value (a* value), yellowness value (b* value), shear force, and water loss rate among the groups (P>0.05). In summary, high energy level diets have a certain improvement effect on the production performance, serum biochemical indicators, and meat quality of plateau Tibetan sheep. It is recommended to use diets with an energy level of 11.52 MJ/kg.
- Publication
Feed Industry, 2024, Vol 45, Issue 5, p64
- ISSN
1001-991X
- Publication type
Article
- DOI
10.13302/j.cnki.fi.2024.05.010