作者:Lu; DAI; Chenghong; LI; Yuhan; LI; Lin...pigmatingabortionmummyfetusdeadfeedingmanagementprocedures
摘要:To analyze the causes affecting production situation of one pig farm in southwest region,group leader,assistant and related staffs in the pig farm were queried,mating and delivery situation of sow and dead-culling situation ofpigletwere investigated.The results showed that①mating situation:mating 691 pigs,returning to love 42 pigs,abortion 4 pigs,mismatching rate was 7.59%.②Delivery situation:delivering 175nests,total birth 2538,total piglet per fetus 14.5,average healthy piglet per fetus 10.12,invalid piglet rate was30.21%.Among them,mummy fetus,dead fetus,weak piglet and deformity accounted for 47.78%,35.64%,10.71%and 5.87%of invalid piglet.③Dead-culling situation:dead-culling rate in breeding process was 12.37%.Among them,diarrhea death wasthemain cause,accounting for 44.47%,followed by pressing,falling to the ground,disease,joint swelling,weakness and other causes,and they respectively accounted for 18.58%,13.36%,13.36%,8.56%,5.85%and 0.62%.
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