中药复方发酵粉对断奶仔猪生长性能、养分表观消化率和消化酶活性的影响

Effects of Chinese Herbal Compound Fermentation Powder on Growth Performance, Nutrient Apparent Digestibility and Digestive Enzyme Activities of Weaned Piglets

试验旨在研究日粮中添加中药复方发酵粉对断奶仔猪生长性能、养分表观消化率和消化酶活性的影响。选择32头体重为(14.96±0.96)kg的健康42日龄“杜×长×大”三元断奶仔猪,随机分成4个处理,每个处理8个重复,每个重复1头猪。对照组饲喂基础日粮,其余3组分别在基础日粮的基础上添加金霉素75 mg/kg、中药复方发酵粉600 mg/kg及金霉素75 mg/kg+中药复方发酵粉600 mg/kg。试验期为42 d。结果表明,日粮中添加中药复方发酵粉显著提高了仔猪的干物质、有机物和碳水化合物的表观消化率及表观消化能(P<0.05),提高了必需氨基酸和非必需氨基酸(甘氨酸、天冬氨酸、丙氨酸、胱氨酸、酪氨酸)的表观消化率及脂肪酶活性(十二指肠、空肠、回肠)和淀粉酶活性(回肠)(P<0.05)。金霉素和中药复方发酵粉对仔猪日增重、粗脂肪和粗蛋白质的表观消化率及表观消化能和亮氨酸、苯丙氨酸、丝氨酸的表观消化率有显著的交互效应(P<0.05);与对照组相比,金霉素组和中药复方发酵粉组显著提高了日增重、粗脂肪和粗蛋白质的表观消化率及苯丙氨酸和丝氨酸的表观消化率(P<0.05),但两组间差异不显著(P>0.05)。由此可见,日粮中添加600 mg/kg中药复方发酵粉能提高断奶仔猪养分表观消化率、氨基酸表观消化率和肠道消化酶活性。

This study was conducted to investigate the effects of Chinese herbal compound fermentation powder(CHCF)on growth performance,nutrient apparent digestibility and digestive enzyme activities of weaned piglets.A total of 32 healthy 42-day-old weaned piglets(Duroc×Landrace×Large White)with an average body weight of(14.96±0.96)kg were randomly divided into 4 treatments,8 replicates per treatment,and 1 pig per replicate.The control group was fed the basal diet,and the other three groups were supplemented with chlortetracycline(CC)75 mg/kg,CHCF 600 mg/kg,CC 75 mg/kg+CHCF 600 mg/kg.The experiment lasted for 42 days.The results showed as follow:Supplementation of CHCF had significantly increased the apparent digestibility of dry matter,organic matter and carbohydrates and the apparent digestible energy(ADE)(P<0.05),increased the apparent digestibility of essential amino acid and non-essential amino acid(Gly,Asp,Ala,Cys and Tyr),activities of lipase(duodenum,jejunum and ileum)and amylase(ileum)(P<0.05).CHCF and CC had a significant interaction on average daily gain(ADG)and ADE,the apparent digestibility of crude protein(CP)and ether extract(EE),and the apparent digestibility of Leu,Phe and Ser(P<0.05).Compared with control group,CHCF and CC group had significantly increased ADG and the apparent digestibility of CP and EE,the apparent digestibility of Phe and Ser(P<0.05),but there were no significant difference between two groups(P>0.05).In conclusion,the addition of 600 mg/kg CHCF in diets could improve the nutrient apparent digestibility,apparent digestibility of amino acid and intestinal digestive enzyme activities of weaned piglets.