ThePigSite猪群健康

ThePigSite站内搜索：
分区：

通过上面的输入框对本网站进行分类或全站搜索。
打印本页

Reasons for Not Keeping Sows Beyond 6 Litters

  • (235) Variable litter size.
  • Variable piglet size at weaning.
  • Variable birth weights within the litter.
  • A history of agalactia or poor milking.
  • Chronic mastitis.
  • Vulval discharges.
  • Poor genetic potential.
  • Other problem areas identified with increasing age.
  • Poor fertility
In indoor herds, levels of sows culled per annum should be between 38 to 45% but in the outdoor herd this often reaches 50%.

2012年 5月 30日 星期三

网站搜索