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一、秋季强化培养培育健壮、肥满、规格大且整齐的鱼种,是提高鱼种越冬成活率的首要措施。秋季鱼种大量摄食,积累营养以供越冬消耗。所以应进行强化培育,多投脂肪和蛋白质含量高的饲料,如豆饼、菜籽饼等,使鱼种膘肥体壮。另外,在鱼种生产过程中,如果到了秋季,鱼种规格还小或大小参差不齐,体质差,那么,必须调整密度,适当稀放,对小规格鱼种进行强化培育,通过供应充足饵料,保持水质清新,注意防病治病等措施,使鱼种达到规格整齐、体质健壮。二、适时拉网并塘。越冬鱼种并塘时间不宜太早,太早水温过高,鱼种游动活跃,拉网并塘时容易受伤。同时鱼种还未停
First, strengthen the cultivation of autumn Cultivation robust, plump, large size and neat species, is to improve the survival of fish overwintering measures. Large quantities of autumn fish feeding, accumulation of nutrients for overwintering consumption. Therefore, intensive cultivation should be carried out to increase the input of fats and protein, such as bean cake and rapeseed cake, so that the fishes can grow well. In addition, in the production process of fish species, if the autumn, the species size is small or uneven size, poor health, then you must adjust the density, appropriate dilution, the small size of species intensive breeding, through the supply of adequate food , Keep the water quality fresh, pay attention to disease prevention and treatment and other measures to make the fish species to neat specifications, strong physique. Second, timely pull net and pond. Overwintering species and pond time should not be too early too early, the water temperature is too high, fish swimming activity, pulling nets and Tong vulnerable. At the same time the species has not stopped