CAUSES OF MORTALITY AMONG SOWS IN DANISH PIG HERDS
CAUSES OF MORTALITY AMONG SOWS IN DANISH PIG HERDS
复制标题
DOI：
10.1136/vr.137.16.395
复制
发表时间：
1995-10-14
影响因子：
2.2
通讯作者：
MOUSING, J
中科院分区：
文献类型：
--
作者：
CHRISTENSEN, G;VRAAANDERSEN, L;MOUSING, J
对 1992 年和 1993 年冬季运送到大型屠宰场的 598 头种猪进行了调查，对丹麦猪群中母猪死亡的可能原因进行了调查。在 263 个案例中，可以获得有关死亡或安乐死情况以及猪群特征的信息，包括猪群规模、健康状况、断奶年龄、饲喂方法和垫料稻草的使用。对于这些动物来说，死亡或安乐死的可能原因分布为：腿部无力，28.5%；与分娩和妊娠晚期有关的问题，20.9%；消化系统疾病，17.1%；泌尿系统疾病，13.1%；身体伤害，10.7%；和其他疾病，9.5%。对于其他 335 头母猪，可能的死亡原因分布为：腿部无力，16.1%；与分娩和妊娠晚期有关的问题，10.7%；消化系统疾病，21.2%；泌尿系统疾病，15.2%；其他疾病，15.0%；死亡原因不明，占 21.8%。根据丹麦炼油厂的官方统计，1992年加工了6万多头种猪，相当于母猪群死亡率为5%至6%。死亡率似乎随着猪群规模的增加而增加，在母猪数量超过 100 头的猪群中，死亡率是母猪数量少于 50 头的猪群死亡率的三倍。与之前的报告相比，过去20年涉及胃肠系统疾病的比例有所增加。胃扩张尤其常见，可能是由于养猪生产的集约化和管理实践的相关变化所致。稻草垫料的使用略有显着性（P=0.06），并且与胃肠道疾病的发生率较低有关。
The likely causes of sow mortality in Danish pig herds were investigated in a sample of 598 of the breeding animals delivered to a large rendering plant in the winter seasons of 1992 and 1993. In 263 cases information about the circumstances of the death or euthanasia and the herd characteristics were available, including the size of the herd, its health status, the age at weaning, the method of feeding and the use of straw for bedding. For these animals the distribution of likely causes of death or euthanasia was: leg weakness, 28.5 per cent; problems related to farrowing and late pregnancy, 20.9 per cent; disorders of the digestive system, 17.1 per cent; disorders of the urinary system, 13.1 per cent; physical injuries, 10.7 per cent; and other disorders, 9.5 per cent. For the other 335 sows the distribution of likely causes of death was: leg weakness, 16.1 per cent; problems related to farrowing and late pregnancy, 10.7 per cent; disorders of the digestive system, 21.2 per cent; disorders of the urinary system, 15.2 per cent; other disorders, 15.0 per cent; and unknown causes of death, 21.8 per cent. According to the official statistics from Danish rendering plants, more than 60,000 carcases of breeding pigs were processed during 1992, corresponding to a mortality rate of 5 to 6 per cent in the sow herds. The mortality rate appeared to increase with increasing herd size, and in herds with more than 100 sows the mortality rate was three times the mortality in herds with fewer than 50 sows. Compared with previous reports, the proportion of disorders involving the gastrointestinal system has increased during the past 20 years. Gastric dilation is particularly common, probably as a result of the intensification of pig production and the associated changes in management practises. The use of straw bedding was marginally significant (P=0.06) and associated with a low frequency of gastrointestinal disorders.