在生产实践中一般不提倡鳙鲢杂交,但在汈汊湖养殖场人工繁殖中已出现了鳙鲢杂交种,其明显特征是体形似鳙和似鲢: 似鳙者,鳃耙排列不整齐,形成缺刻,腹棱始自胸腹鳍之间,胸鳍末端伸达腹鳍1/4处,肠管长度与体长比值介于鳙、鲢之间,在取样本的12尾中,体长一般在27.8～41.3cm。经对比观察,其生长速度比纯种鳙要慢; Silver carp hybridization is generally not advocated in the practice of production. However, cross-bred silver carp hybrids have appeared in the artificial breeding of the Qionglai Lake farms. The obvious characteristics of the hybrid carp are as follows: The formation of nicks, abdominal edge from the pelvic fins between the end of pectoral fin reach the pelvic fin 1/4, the length of the intestine and body length ratio between 鳙, silver carp, taking 12 samples in the sample, body length is generally 27.8 ~ 41.3cm. After comparative observation, its growth rate is slower than that of purebred;