论文部分内容阅读
我们于1989年在一只4亩池塘中培育鲤鱼一龄鱼种,获得高产,在108天的培育期中,共生产出一龄鱼利4117.3公斤,其中鲤鱼种3265.55公斤,占79.3％;鲢、鳙鱼种807.6公斤,占19.6％;其它鱼种44.1公斤,占1.1％;平均亩产鱼种1029.3公斤。鱼种平均出塘规格:鲤鱼为63.16克/尾,鲢鱼44.8克/尾,鳙鱼90.5克/尾。培育期中共投喂颗粒饲料5280.5公斤,按池塘总净产计,饵料系数1.31;经济效益比当地一般的培育鱼种方法有明显提高,现将主要技术措施介绍如下。
In 1989, we cultivated a carp primary fish in a 4-acre pond and obtained high yield. During the 108-day cultivation period, a total of 4,117.3 kg of primary fish were produced, of which 3265.55 kg were carp species, accounting for 79.3% Catfish species 807.6 kilograms, accounting for 19.6%; other species of 44.1 kilograms, accounting for 1.1%; the average yield of 1029.3 kilograms of species. Species average out of pond specifications: carp is 63.16 g / tail, silver carp 44.8 g / tail, catfish 90.5 g / tail. During the cultivation period, 5280.5 kg of pellet feed was fed by the CCP. According to the total net output of the pond, the feed coefficient was 1.31. The economic benefit was obviously improved compared with that of the local breeding fish species. The main technical measures are as follows.