中国畜牧兽医2024，Vol.51Issue(8)：3329-3336,8.DOI:10.16431/j.cnki.1671-7236.2024.08.011
不同营养水平饲粮对安黑杂交牛生长性能、养分消化和抗氧化性能的影响
Effects of Diets with Different Nutrient Levels on Growth Performance,Nutrient Digestion and Antioxidant Property of Anhei Crossbred Cattle
摘要
Abstract
[Objective]This experiment was conducted to study the effects of high and low nutrient level diets on growth performance,nutrient digestion and antioxidant property of Anhei crossbred cattle.[Method]A comparative experimental design was used and twelve healthy Angus(♂)× Black Simmental(♀)cross cattle with similar body weight(206.08 kg±21.87 kg)and age(about 6 months,half male and half female)were randomly divided into two groups with 6 cattle in each group and fed low and high nutrient level diet respectively.The pre-trial and normal trial periods were 12 and 62 days,respectively.The comprehensive net energy(Nemf)of the high nutrient level formula diet in the early(1-31 d)and late(32-62 d)stages were 5.77 and 6.00 MJ/kg,and the crude protein(CP)was 12.47％and 10.44％.The Nemf of the low nutrient level formula diet in the early and late stages were 5.42 and 5.57 MJ/kg,and the CP were 9.66％and 9.05％.Body weight and body size were measured on days 1 and 62.The digestion experiment was done in the last 8 days,and the digestibility of organic matter(OM),CP,ether extract(EE),neutral detergent fiber(NDF)and acid detergent fiber(ADF)were measured.[Result]In whole stage,the average daily gain,average daily feed intake and the abdominal circumference of the cattle in the high nutrient level group were significantly higher than those in the low nutrient level group by 39.09％,22.20％and 6.17％(P＜0.05).The F/G of the high nutrient level group had a lower tendency than that of the low nutrient level group(P=0.087).The digestibility of OM,CP,EE,NDF and ADF of Anhei crossbred cattle was not affected significantly by dietary nutrient levels(P＞0.05).The serum total antioxidant capacity of the cattle in the high nutrient level group was significantly lower than that in the low nutrient level group(P＜0.05),glutathione peroxidase activity and malondialdehyde content were not affected significantly by the treatments(P＞0.05).[Conclusion]In conclusion,compared with the low nutrient level diet,the high nutrient level diet could better promote the growth and development of Anhei crossbred cattle.关键词
安黑杂交牛/生长性能/养分消化/抗氧化性能Key words
Anhei crossbred cattle/growth performance/nutrient digestion/antioxidant property分类
农业科技引用本文复制引用
杜兰霞,杨瑞鑫,刘菲菲,郭艳丽,魏立明..不同营养水平饲粮对安黑杂交牛生长性能、养分消化和抗氧化性能的影响[J].中国畜牧兽医,2024,51(8):3329-3336,8.基金项目
甘肃省农业农村厅项目(GNKJ-2021-29) （GNKJ-2021-29）
