对草鱼、鲢、鳙、团头鲂鱼种阶段的RNA／DNA的初步研究

A PRELIMINARY STUDY ON RNA/DNA OF FINGERLING OF GRASS CARP, SILRER CARP, BIG HEAD CARP AND BLUNT SNOUT BREAM

摘要:

本文对草鱼、鲢、鳙、团头鲂4种养殖鱼类在鱼苗期、1龄期、2龄期的RNA和DNA含量进行测定．结果指出RNA／DNA的变化规律与鱼类的生长情况一致，因此，RNA／DNA可以怍为评定这4种养殖鱼类在鱼种阶段生长的指标。

Abstract:

RNA and DNA concentration of grass carp, silver carp, big head carp and blunt snout bream at different developmental stages (fry, one-year and two-year old) were measured. Changes of RNA/DNA ratio accorded with the tested fish growth. Ther fore,RNA/DNA ratio could be as an indicator for evaluating-the fish growth at fingerling stage.