中草药添加剂对猪生产性能和猪瘟疫苗免疫效果的影响

Effects of Chinese herbal medicine additives on productive performances and levels of antibody against classical swine fever(CSF) for swine

90头健康三元杂交断奶仔猪被均分成9个栏,每栏10头猪,随机分成3组。在仔猪、生长猪和肥育猪阶段,对照组分别饲喂猪场自配的仔猪饲粮、生长猪饲粮和肥育猪饲粮;试验1组(中草药组)饲喂在3种对照饲粮基础上分别添加了3 500,3 000和2 500 mg·kg-1中草药饲料添加剂的试验饲粮,试验2组(植物提取物添加剂组)饲喂在3种对照饲粮基础上分别添加了800,600和500 mg·kg-1植物提取物添加剂的试验饲粮。对照组、试验1组和试验2组的全期平均日增重分别为(587.47±91.93),(604.78±91.06)和(601.44±72.26)g,料重比分别为3.42±0.11,3.23±0.26和3.41±0.22。在猪瘟疫苗免疫后29 d,猪瘟抗体阳性率分别为41.7%,83.3%和41.7%,中草药组猪瘟抗体阳性率显著高于对照组和植物提取物添加剂组。试验期间,中草药组猪的死亡率比对照组和植物提取物添加剂组下降66.7%和75.0%,淘汰率均降低33.3%。使用中草药饲料添加剂比对照组和植物提取物添加剂组增加经济效益40.96%和95.89%。表明中草药饲料添加剂具有改善猪生产性能、提高猪抗病能力和增加经济收益的作用。

Ninety crossbred weaning piglets were randomly divided into 3 groups with 30 piglets each.In the weaned pig period,growing pig period and finishing pig period,the pigs in control group were fed with weaned pig diet,growing pig diet and finishing pig diet,respectively.The pigs in trial group 1（Chinese herbal medicine group） were fed with diets added with 3 500,3 000 and 2 500 mg·kg-1 Chinese herbal medicine additives into relevant control diets.The pigs in trial group 2（plant extract group） were fed with diets added with 800,600 and 500 mg·kg-1 plant extract,a foreign patent plant extract additive.It was found that the average daily gains of control group,trial group 1 and trial group 2 were（587.47±91.93）,（604.78±91.06） and（601.44±72.26） g in total trial period,respectively.The feed conversion ratios of above groups were 3.42±0.11,3.23±0.26 and 3.41±0.22,respectively.Antibody positive rates of classical swine fever（CSF） in trial group 1,trial group 2 and control group were 83.3%,41.7% and 41.7%,respectively.Antibody positive rate of CSF in trial group 1 was significantly higher than those in trial group 2 and control group（P0.005）.The mortality rate of trial group 1 decreased by 66.7% and 75.0%,in addition,the elimination rate decreased by 33.3% and 33.3%,in comparison to those of control group and trial group 2,respectively.The economic benefit of trial group 1 increased by 40.96% and 95.89% more than those of control group and trial group 2.The results suggested that the Chinese herbal medicine additives show improving effects on pig＇s productive performances,disease resistance and economic benefits.