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草鱼是一个生长迅速的品种,在全国各地广泛养殖。但这种鱼多病,特别是细菌性疾病(如肠炎、烂鳃、赤皮等病),常常造成死亡。武昌鱼又名团头鲂,味美而少病,但生长较慢。长江水产研究所,为了解决生产上草鱼多病的问题,近年来试用草鱼的卵子和武昌鱼的精子进行人工杂交,所得的杂交种具有如下一些特点: 1.对细菌性疾病(肠炎、烂鳃、赤皮病等)具有很强的抗病能力。 2.生长速度较快。鱼苗下池后60天,鱼种规格可达三寸。成鱼生长速度,快于武昌鱼而慢
Grass carp is a rapidly growing variety that is extensively cultivated throughout the country. However, this fish is sick, especially bacterial diseases (such as enteritis, rotten gills, red skin and other diseases), often resulting in death. Wuchang fish, also known as bream, delicious and less disease, but slower growth. Yangtze River Fisheries Research Institute, in order to solve the problem of grass carp on the sick, in recent years, the trial of grass carp eggs and Wuchang fish sperm artificial cross, the resulting hybrids have the following characteristics: 1. Bacterial diseases (enteritis, rotten gill , Red skin disease, etc.) has a strong resistance to disease. 2. Grow faster. Fish fry 60 days after the pool, fish species up to three inches. Adult fish grow faster than Wuchang fish and slow