0.6%百虫杀预混剂对猪蛔虫病的治疗试验

０．６％百虫杀预混剂是伊维菌素的一种新制剂。在每吨饲料中添加３３３ｇ，连续饲喂７天，对猪蛔虫病的治愈率达１００％，且安全，无任何毒副作用，其效果与美国默沙东０．６％害获灭相同。     

Investigation of the Mode of Action of Nematode Neuropeptides

The neuropeptide AF2 has a complex set of actions on the dorsal muscle strip of Ascaris suum, including a potentiation of the acetylcholine-stimulated muscle contraction. Caffeine at 100 μm and 5 mm inhibited this potentiation, as did 100 μm theophylline in two out of six studies. The cyclic-AMP-potentiating compounds IBMX, dibutyryl cAMP and forskolin had no effect on the AF2-induced potentiation of the acetylcholine-stimulated muscle contraction. These preliminary data suggest that the potentiating action of AF2 is not mediated by a cAMP pathway.