饲料研究2024，Vol.47Issue(21)：8-13,6.DOI:10.13557/j.cnki.issn1002-2813.2024.21.002
不同比例苜蓿开食料对15～54日龄羔羊生长性能、血清指标及肠道发育的影响
Effects of starter feed with different proportions of alfalfa on growth performance,serum indexes,and intestinal development of lambs aged 15 to 54 days
摘要
Abstract
The experiment aimed to explore the effects of starter feed with different proportions of alfalfa on the growth performance,serum indexes,and intestinal development of Hu sheep lambs aged 15 to 54 days.A total of 48 Hu sheep lambs with an average body weight of(4.22±0.35)kg from the second parity twins were randomly divided into three groups,with four replicates per group and four sheep per replicate.Each group was fed starter feed containing 10％,20％,and 30％alfalfa,respectively.The experiment lasted for 40 days.The results showed that at 54 days of age,the body weight of lambs in the 30％alfalfa group was higher than that of the other groups(P＞0.05).From 45 to 49 days of age,the average daily feed intake(ADFI)of the 20％alfalfa group was significantly higher than that of the 10％alfalfa group(P＜0.05).The levels of tumor necrosis factor-α(TNF-α),interleukin-4(IL-4),and interleukin-6(IL-6)in the 20％and 30％alfalfa groups were significantly lower than those in the 10％alfalfa group(P＜0.05),and the serum total antioxidant capacity(T-AOC)and glutathione peroxidase(GSH-Px)activity in the 20％and 30％alfalfa groups were significantly higher than those in the 10％alfalfa group(P＜0.05).The total antioxidant capacity(T-AOC)and superoxide dismutase(SOD)activity in the intestines of the 10％alfalfa group were significantly higher than those in the other groups(P＜0.05).The creatine kinase(CK)activity in the 20％and 30％alfalfa groups was significantly lower than that in the 10％alfalfa group(P＜0.05),and the lactate dehydrogenase(LDH)activity in the 20％and 30％alfalfa groups was significantly higher than that in the 10％alfalfa group(P＜0.05).The villus length of the duodenum in the 20％alfalfa group and the crypt depth in the duodenum of the 30％alfalfa group were significantly higher than those in the other groups(P＜0.05).The study indicates that feeding starter feed containing 10％and 20％alfalfa can enhance the body's immune and antioxidant capabilities,and promote the development of duodenal tissue.It is recommended that the content of alfalfa in the starter feed for lambs aged 15 to 54 days should not exceed 20％.关键词
苜蓿/羔羊/生长性能/血清指标/十二指肠发育Key words
alfalfa/lamb/growth performance/serum indexes/duodenal development分类
农业科技引用本文复制引用
王彦,陈翔宇,马文彬,袁岑,刘艳丰,李长青,张志军,王文奇..不同比例苜蓿开食料对15～54日龄羔羊生长性能、血清指标及肠道发育的影响[J].饲料研究,2024,47(21):8-13,6.基金项目
新疆维吾尔自治区重点研发项目-饲草料标准化加工技术集成(项目编号:2022B02003-4) （项目编号:2022B02003-4）
国家重点研发计划(项目编号:2021YFD1600701-2) （项目编号:2021YFD1600701-2）
新疆维吾尔自治区重点研发项目(项目编号:2022B02029) （项目编号:2022B02029）
