摘要
选择北京养猪育种中心某种猪场5 697窝大白母猪和2 226窝长白母猪的总产仔数和产活仔数按照胎次进行统计分析,结果表明,在大白和长白母猪中胎次对产仔数影响显著。大白母猪产仔高峰在第4胎次,总产仔数为(12.37±2.52)头,产活仔数为(11.74±2.86)头;长白母猪产仔高峰也在第4胎次,总产仔数为(12.57±2.41)头,产活仔数为(11.83±2.44)头,胎次对产仔数的影响在大白母猪和长白母猪中规律基本一致。
Abstract The total number born and the number born alive were selected of Beijing breeding swine center a farm of 5 697 litters in Large White sows and total 2 226 litters Landrace sows, statistical analysis was per- formed according to the parity, the results showed that in Large White and Landraee sows in parity and significant effect on the litter size. Large White sows farrowing peak at fourth of parity, total litter size was （12.37± 2.52）, number born alive was （11.74±2.86）; Landrace sows farrowing peak in the fourth parity, total litter size was （12.57±2.41）, number born alive was （11.83±2.44）, effect of parity on litter size consistent in Large White and Landrace sows.
出处
《养猪》
2015年第3期39-40,共2页
Swine Production
基金
国家现代农业产业技术体系建设专项资金资助(CARS-36)
关键词
胎次
产仔数
品种
litter
number litter size
breed
