摘要
文章旨在探究添加不同水平黄芪茎叶提取物对断奶仔猪生长性能、养分表观消化率及免疫机能的影响.试验将 120 头健康的体重(25±0.5)kg的"杜×长×大"三元杂交仔猪随机分成 4 组,每组 3 个重复,每个重复组10 头,试验分别在基础日粮中添加 0(1 组)、1.0%(2 组)、1.5%(3 组)、2.0%(4 组)黄芪茎叶提取物,预饲期 10 d,整个试验为期 56 d.结果表明:(1)试验 3、4 组平均日增重较 1 组分别显著提高 11.6%、10.1%(P＜0.05),其料重比较 1 组分别显著降低 9.4%、7.0%(P＜0.05);(2)试验 3、4 组粪便中的粗蛋白质、粗脂肪、粗纤维的养分表观消化率较 1 组分别显著提高 10.9%、10.8%、10.8%、11.2%、16.5%、15.9%(P＜0.05);(3)试验 3、4 组血清中IgA、IgG、IL-2含量较 1 组分别显著提高 10.8%、11.7%、12.0%、13.7%、22.9%、25.1%(P＜0.05),其血清中TNF-α含量较 1 组分别显著降低 20.8%、22.1%(P＜0.05).综上所述,添加 1.5%黄芪茎叶提取物可以提高"杜×长×大"二元杂交仔猪的生长性能、养分表观消化率及免疫机能.
Abstract
To investigate the effects of adding different levels of Huangqi stem and leaf extracts on the growth performance,nutrient apparent digestibility,and immune function of weaned piglets.Choose a healthy weight of(25±0.5)kg for the experiment"Du×long×large"120 three way hybrid piglets were randomly divided into 4 groups,with 3 replicates in each group and 10 pigs in each replicates group"Du×long×large"three way hybrid piglets were fed with 0(group 1),1.0%(group 2),1.5%(group 3),and 2.0%(group 4)Huangqi stem and leaf extracts in the basic diet.The preliminary experiment was conducted for 10 days,and the entire experimental period was 56 days.The results showed that:(1)The average daily gain of Group 3 and Group 4 was significantly increased by 11.6%and 10.1%(P＜0.05)compared to Group 1,respectively,and their material weight was significantly reduced by 9.4%and 7.0%(P＜0.05)compared to Group 1;(2)The apparent digestibility of crude protein,crude fat,and crude fiber in feces of groups 3 and 4 was significantly increased by 10.9%,10.8%,10.8%,11.2%,16.5%,and 15.9%compared to group 1,respectively(P＜0.05);(3)The levels of IgA,IgG,and IL-2 in the serum of groups 3 and 4 were 10.8%,11.7%,12.0%,13.7%,22.9%,and 25.1%higher than those of group 1,respectively(P-α Compared with group 1,the content decreased by 20.8%and 22.1%respectively(P＜0.05).In summary,the addition of 1.5%Huangqi stem and leaf extract can improve the"Du×long×large"the growth performance,nutrient apparent digestibility,and immune function of large binary hybrid piglets.
基金项目
2022年度河南省高等学校重点科研项目(22A230014)
河南农业职业学院科研创新团队项目(HNACKT-2020-3)
河南农业职业学院"双高"专项重点项目(HNACSG-2020-15)
河南农业职业学院校级科研团队(HNACKT-2023-01)
NETL
NSTL
万方数据