Abraham J, Chhabra A K
Sharon, Santhosh Nagar, Mannuthy, Thrissur 680651, Kerala, India.
Trop Anim Health Prod. 2004 Aug;36(6):599-608. doi: 10.1023/b:trop.0000040933.28759.1c.
An experiment using 164 crossbred pigs born to 20 first-parity sows was conducted to evaluate the growth performance of piglets in four weaning management regimens: T1, conventional weaning at 56 days; T2, early weaning at 28 days; T3, split-weaning of the heavier half of the litter at day 28, the remaining half being weaned at 56 days; and T4, split-weaning of the lighter half of the litter at 28 days, with the animals kept on a special nutrient diet up to 56 days, and the heavier half being weaned at 56 days. Split-weaning of the lighter half in combination with feeding a special nutrient diet resulted in an increase of average daily gain of 21% from day 28 to day 140 compared to conventional weaning and of 36% compared to early weaning at day 28. Compared to the control (T1), the average weights of piglets at the 140th day in groups T4 and T3 were 19.6% and 6.16%, respectively, higher, whereas that of the T2 was 8% lower. It is concluded that feeding a special nutrient diet to lighter pigs is beneficial in overcoming the post-weaning lag and enables maximal weight gain.
以20头初产母猪所产的164头杂交猪为实验对象，评估了四种断奶管理方案下仔猪的生长性能：T1，56日龄常规断奶；T2，28日龄早期断奶；T3，28日龄时将较重的一半仔猪分窝断奶，另一半在56日龄断奶；T4，28日龄时将较轻的一半仔猪分窝断奶，这些仔猪持续饲喂特殊营养日粮至56日龄，较重的一半在56日龄断奶。与常规断奶相比，较轻一半仔猪分窝断奶并饲喂特殊营养日粮，使28日龄至140日龄的平均日增重提高了21%，与28日龄早期断奶相比提高了36%。与对照组（T1）相比，T4组和T3组仔猪在140日龄时的平均体重分别高出19.6%和6.16%，而T2组则低8%。研究得出结论，给较轻的仔猪饲喂特殊营养日粮有利于克服断奶后的生长迟缓，并能实现最大体重增加。
