摘要
对含鱼粉４０％的鲤鱼日粮中磷、铁、锌、镁的添加水平及其对骨骼、肝脏中矿物元素含量的影响进行了研究。结果表明，含鱼粉４０％的鲤鱼日粮中磷、铁、锌、镁的最适添加水平为磷０．６％、铁５０ｐｐｍ，锌１００ｐｐｍ、镁８００ｐｐｍ；影响饲料效率的各因素主次顺序为磷→镁→锌→铁；日粮中磷的添加才平影响骨骼中钙的含量；肝脏锌的含量和头骨锌的含量可以作为日粮中锌供给状况的标识；躯干骨中铁的含量可以作为日粮中铁供给状况的标识。
The author has studied the optimum adding level of phosphorus、iron、zinc and magnesium in the carp diet which contains 40% of fish meal and its influence on the content of mineral elements in bones and livers. The result shows that in the carp diet containing 40% of fish meal, the optimum adding level is as follows: phosphorus is 0. 6%,iron is 50ppm, zinc is 100ppm ,magnesium is 800ppm. The primary and secondary order of the factors influencing feed efficiency is as follows :phosphorus>magnesium>zinc>iron.The adding level of phosphorus influences the content of calcium in bones. The contents of zinc in a liver and head bone can be used as an indicator of supply condition of zinc. The content of iron in a trunk bone can be used as an indicator of supply condition of iron in the diet
关键词
鲤鱼日粮
磷
铁
锌
镁
添加水平
饲料
饵料
carp diet
phosphorus
iron
zinc
magnesium
adding level
