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

作　　者：闫彦章 邹小娟 YAN Yanzhang;ZOU Xiaojuan(Queshan County Agricultural Comprehensive Administrative Law Enforcement Brigade,Queshan,Henan Province 463200,China;Xinxiang Agricultural Comprehensive Administrative Law Enforcement Detachment,Xinxiang,Henan Province 453000,China)

机构地区：[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

出　　处：《中国饲料》2025年第6期121-124,共4页China Feed

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。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(ExperimentⅠ,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 groupsⅢandⅣincreased 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 groupsⅢandⅣ(P<0.05),while the MDA content decreased significantly(P<0.05).The BUN content in groupⅣdecreased significantly(P<0.05),while the IgG content increased significantly(P<0.05).The H2O2 content in groupsⅡ~Ⅳdecreased significantly(P<0.05),and the·OH capacity increased significantly(P<0.05).The apparent digestibility of CP in groupⅣincreased significantly(P<0.05),while the apparent digestibility of EE in groupsⅢandⅣincreased 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 

分 类 号：S828[农业科学—畜牧学]