CAJ | 학술논문

研究分析了陆川母猪产程对当胎繁殖性能、断奶后发情配种情况及下一胎繁殖性能的影响. 结果表明,陆川母猪产程的长短与当胎的产仔数有关,产仔数高,则产程相应延长;母猪产程越长,产死胎母猪比例增加,产程后期产死胎几率越大,窝产死胎数相应提高;前一胎产程长,则下一胎产程相应较长;产程过长(>4h)其返情比例亦高于群体均值. 陆川母猪产程过长与其限位饲养导致母猪体质下降有关;此外,陆川母猪比较敏感,接产不当会加重其紧张状态,致使产程延长.
연구분석료륙천모저산정대당태번식성능、 단내후발정배충정황급하일태번식성능적영향. 결과표명,륙천모저산정적장단여당태적산자수유관,산자수고,칙산정상응연장;모저산정월장,산사태모저비례증가,산정후기산사태궤솔월대,와산사태수상응제고;전일태산정장,칙하일태산정상응교장;산정과장(>4h)기반정비례역고우군체균치. 륙천모저산정과장여기한위사양도치모저체질하강유관;차외,륙천모저비교민감,접산불당회가중기긴장상태,치사산정연장.
The objective of this study was to determine the effects of duration of farrowing on litter size,subse-quent estrus,repeat breeding rate after weaning, and litter size of next parity.The results showed that duration of farrowing related to the litter size.The high litter size prolonged duration of farrowing,increase the possibility in delivering stillbirths and the number of stillbirths.And it would prolong duration of farrowing in next parity when the total duration of previous farrowing was longer.The sows with a longer duration of farrowing(>4 h) have higher rate of return to estrus.Luchuan sows have long duration of farrowing,which was associated with the poor health owing to the feeding and house condition.Moreover,Luchuan sows were sensitive,so that the incorrect deliver op-eration would make them nervous, and prolonged duration of farrowing.