日粮不同蛋白质、赖氨酸水平对泌乳母猪生产性能的影响

Effectof Dietary Protein Level and Lysine Level on the Productivity of Lactating Sow

选用 2～ 3胎母猪 90头 ,随机分成 6个品种相同的组 ,试验日粮蛋白质为 1 4 %和 1 6 % ,赖氨酸为 0 .6 %、 0 .8%、1 .0 % ,通过对比饲养试验、母乳测定 ,结果表明 :当日粮含DE约 332 0 kcal/ kg,CP为 1 6 % ,L ys为 0 .8%～ 1 .0 % ,母猪日采食量为 4.5 kg时 ,泌乳力好 ,哺乳仔猪增重最快 ,2 1日龄头均重达 6 .0 5～ 6 .1 2 kg,与其它处理组相比差异极显著(P<0 .0 1 ) ,各处理组间仔猪下痢发生率和死亡率差异不显著 (P>0 .0 5 )

The experimentwas carried outwith 90 sows of 2～ 3birth,divided at random into 6 groups,two protein level (1 4 % ,1 6 % ) and three lysine level(0 .6 % ,0 .8% ,1 .0 % )were allotted to six dietary treatments,with the contrast feedig experiments ad lactating test.The results Showed: when the optimum connnnntents of DE.CP.L ys.in diets were 332 0 kcal/kg,1 6 % ,0 .8%～ 1 .0 % and a sow takes 4.5 kg per day,the sow will have a good lactation,their piglets growing best,with and average weight of6 .0 5～ 6 .1 2 kg each for2 1 - day- old ones,that difference is evident to other treatments (P<0 .0 1 ) ,while slight in difference of disentary ad death rate (P>0 .0 5 ) .