Siers D G, Schooley M A, Brown L J, Stanton H C
Am J Vet Res. 1977 Dec;38(12):1997-9.
Treated sows were on a special management program which consisted of feeding 1,000 mg of dichlorvos to the sow each day for the last 30 days of gestation. The dichlorvos was delivered as a slow-release formulation. The late gestation treatment signigicantly (P less than 0.01) improved the productivity of the sows by improving the performance of their litters. The litters from treated sows were superior in 4 ways: (1) increased number of pigs born alive per litter (2.3%); (2) increased pig birth weights (9.6%); (3) improved survival of pigs born alive; and (4) improved growth rate to market weight. The litters from treated sows were 11.6%, 16.5%, and 12.4% heavier than control litters at birth, weaning (35 days), and market (160 days), respectively.
接受治疗的母猪采用特殊管理方案，即在妊娠最后30天每天给母猪投喂1000毫克敌敌畏。敌敌畏采用缓释制剂。妊娠后期的治疗通过提高仔猪的性能显著（P小于0.01）提高了母猪的生产力。接受治疗的母猪所产仔猪在四个方面表现更优：（1）每窝活产仔猪数量增加（2.3%）；（2）仔猪出生体重增加（9.6%）；（3）活产仔猪的存活率提高；（4）生长至上市体重的速度加快。接受治疗的母猪所产仔猪在出生时、断奶时（35天）和上市时（160天）分别比对照仔猪重11.6%、16.5%和12.4%。
