胎次和管理对窝均仔猪数及断奶前死亡率的影响

The effect of parity and management on the number piglets per litter and the mortality rate before weaning

为分析猪场母猪窝均总产仔数低、窝均活仔数低,断奶前死亡率高的原因,选择江苏省某猪场进行实地考察,探寻提高母猪总产仔数、窝均活仔数,减少断奶前死亡率的方法,从而增加养殖场的效益,减少经济损失。通过数据整理及对各种因素和解决方法的分析,发现分娩母猪的胎次结构影响着窝均总仔数、窝均活仔数。胎次过高将使窝均总仔数、活仔数降低。饲养管理影响仔猪断奶前死亡率,及时对仔猪进行相关护理是减少断奶前死亡率的重要途径。

In order to analyze the reasons for the low average litter size of sows in pig farms,low average live litter size,and high pre-weaning mortality rate,investigate and explore the above questions,we chose to conduct a field visit to a pig farm in Jiangsu Province to find ways to improve the sow’s low total litter size,low live piglets per litter,and reduce pre-weaning mortality,thereby increasing the efficiency of the farm and reducing the economy loss.By sorting out the data,this paper makes a relative analysis of various factors and solutions,and finds that the parity structure of farrowing sows affects the total number of litters and the average number of live litters.Too high parity will reduce the average number of litters and the number of live litters.Staff management affects the mortality of piglets before weaning,and timely care of piglets is a good way to reduce the mortality before weaning.