膨化大豆代替鱼粉对早期断奶仔猪生产性能的影响

Extruded soybean meal instead of the early production performance of weaned piglets

选取体重接近的28日龄断奶的DLY(杜×长×大)仔猪48头,随机分为6组,每组8头。6个试验组日粮中的粗蛋白水平相同。用膨化大豆在平衡第一、二限制性氨基酸的基础上逐渐替换断奶仔猪日粮中的鱼粉。试验结果表明:试验1、2、3组之间差异未达到显著水平(P﹥0.05);试验2、3、4、5、6组之间差异未达到显著水平(P﹥0.05);试验1组分别与4、5、6组之间均达到显著水平(P<0.05)。但由于鱼粉的价格居高不下,饲料成本较高。经计算得出试验6组每千克体增重消耗饲料费用最低,比试验1组减少了0.26元。其次为实验5组,比实验1组减少了0.19元。试验结果表明膨化大豆在早期断奶仔猪日粮中完全可以取代全部的鱼粉。

The author selected 48 piglets in 28 days age with the similar body weight .These piglets were randomly divided into 6 groups , and each group had 8 pigs. These groups had same crude protein level in dietary. The fish flour in dietary were gradually replaced by puffing soybean for the balance of first and second restriction amino acids .The results showed there was not significant difference （P〉0.05）in 1, 2 and 3 group , as same as in 2,3,4,5,6 group. But lgroup had significant difference （P〈0.05） comparing with 4,5,6 group .For high prices of fish meal, the cost of forage was high too. The forage cost of 6 and 5 group respectively decreased 0.26 yuan and 0.19 yuan comparing with lgroup. The results revealed that puffing soybean could wholly replace fish meal in early weaned pig diets .