香菇多糖对育肥猪生长性能、血清生化及养分表观消化率的影响
The effect of lentinan on growth performance,serum biochemistry,and apparent digestibility of nutrients in fattening pigs
闫彦章 1邹小娟2
作者信息
- 1. 确山县农业综合行政执法大队,河南确山 463200
- 2. 新乡市农业综合行政执法支队,河南 新乡 453000
- 折叠
摘要
文章旨在探究香菇多糖对育肥猪生长性能、血清生化及养分表观消化率的影响.试验将 144 头三元(杜长大)杂交猪[(19.82±0.73)kg]按照体重和性别完全随机原则分为 4 组(试验Ⅰ、Ⅱ、Ⅲ、Ⅳ组),每组 6 个重复,每个重复 6 头,根据育肥猪体重分为 3 阶段试验(20～50、50～80、80～110 kg),各处理组分别饲喂基础日粮+0、80、160和 320 mg/kg的LTN的试验日粮.结果:与对照组相比,试验Ⅲ和Ⅳ组育肥猪末重提高 2.73%和 3.49%(P＜0.05),日增重显著提高 3.70%和 4.94%(P＜0.05),料重比显著下降 2.71%和 3.39%(P＜0.05).试验Ⅲ和Ⅳ组血清球蛋白(Glb)和还原型谷胱甘肽(GSH)含量,谷胱甘肽过氧化物酶(GSH-Px)活性显著增加(P＜0.05),丙二醛(MDA)含量显著下降(P＜0.05),试验Ⅳ组尿素氮(BUN)含量显著下降(P＜0.05),免疫球蛋白G(IgG)含量显著增加(P＜0.05),试验Ⅱ～Ⅳ组H2O2 含量显著下降(P＜0.05),·OH抑制能力显著增加(P＜0.05).与对照组相比,试验Ⅳ组粗蛋白质(CP)表观消化率提高显著(P＜0.05),试验Ⅲ和Ⅳ组粗脂肪(EE)和磷(P)表观消化率显著提高(P＜0.05).结论:补充香菇多糖能促进育肥猪养分吸收,改善血清指标,促进其生长发育,在本试验条件下,香菇多糖的最适添加量为 320 mg/kg.
Abstract
Objective:To investigate the effects of lentinan(LTN)on the growth performance,serum biochemistry,and apparent nutrient digestibility of fattening pigs.Design:144 ternary(Duroc-Landrace-Yorkshire)hybrid pigs[(19.82±0.73)kg]were randomly divided into four groups(Experiment Ⅰ,Ⅱ,Ⅲ,Ⅳ)based on body weight and gender,with six replicates in each group and six pigs per replicate.A three-stage experiment(20～50,50～80,80～110 kg)was conducted according to the weight of the fattening pigs.Each treatment group was fed with basic feed+0,80,160,and 320 mg/kg LTN experimental feed,respectively.Result:Compared with the control group,the final weight of fattening pigs in experimental groups Ⅲ and Ⅳ increased by 2.73%and 3.49%(P＜0.05),the daily weight gain significantly increased by 3.70%and 4.94%(P＜0.05),and the feed to weight ratio significantly decreased by 2.71%and 3.39%(P＜0.05).The serum levels of Glb and GSH,as well as the activity of GSH Px,increased significantly in groups Ⅲ and Ⅳ(P＜0.05),while the MDA content decreased significantly(P＜0.05).The BUN content in group Ⅳ decreased significantly(P＜0.05),while the IgG content increased significantly(P＜0.05).The H2O2 content in groups Ⅱ～Ⅳ decreased significantly(P＜0.05),and the·OH capacity increased significantly(P＜0.05).The apparent digestibility of CP in group Ⅳ increased significantly(P＜0.05),while the apparent digestibility of EE in groups Ⅲ and Ⅳ increased significantly(P＜0.05).Conclusion:Supplementing of lentinan(320 mg/kg)to fattening pigs can promote nutrient absorption,improve serum indicators,and promote growth and development.
关键词
育肥猪/香菇多糖/生长性能/血清生化/养分消化吸收Key words
fattening pigs/lentinan/growth performance/serum biochemistry/nutrient digestion and absorption引用本文复制引用
出版年
2025
NETL
NSTL
万方数据