论文部分内容阅读
(三) 渔一牧综合经营渔一牧综合经营是指养鱼和畜禽饲养结合起来。目前,与养鱼结合的畜禽有猪、牛、鸭、鹅、鸡等,而鱼—猪、鱼—鸭、鱼—畜—禽结合是比较普遍比较配套的综合养鱼模式。渔—牧综合经营,实质上是利用畜禽的排泄物和废弃物养鱼。利用动物粪便养鱼,这正如肥料可以肥田一样,动物的粪便入池后,经过细菌分解,氮、磷、钾等释放到水中,为浮游植物的大量繁殖提供营养物;浮游动物又依赖浮游植物而得以
(C) a comprehensive management of a fishing fishing a comprehensive management of fishing is a combination of fish farming and livestock rearing. At present, pigs, cattle, ducks, geese and chickens are integrated with fish farming. The combination of fish, pigs, fish, ducks, fish, livestock and poultry is more common and comprehensive. Fishery - animal husbandry integrated management, in essence, the use of livestock and poultry fish waste and fish. The use of animal manure to fish, which is just as fertilizers can fertilize fields, animal excrement into the pool, after bacterial decomposition, nitrogen, phosphorus, potassium and other release into the water for the mass production of phytoplankton to provide nutrients; zooplankton and rely on phytoplankton And get it