GROWTH UNDER STRESSED CONDITIONS IN JUVENILE CHANNEL CATFISH ICTALURUS-PUNCTATUS (RAFINESQUE) AS MEASURED BY NUCLEIC-ACIDS

被引:9
作者
PETERSON, MS [1 ]
BROWNPETERSON, N [1 ]
机构
[1] MISSISSIPPI STATE UNIV,DEPT WILDLIFE & FISHERIES,MISSISSIPPI STATE,MS 39762
来源
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-PHYSIOLOGY | 1992年 / 103卷 / 02期
关键词
D O I
10.1016/0300-9629(92)90588-H
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
1. Juvenile channel catfish exposed to stressed conditions (low oxygen and a bacterial infection) showed a decrease in body condition during a 20-day experiment. There was no change in length or condition for control fish, but weight decreased. 2. RNA concentration and RNA:DNA ratios were higher in control fish when initial length or initial weight were removed statistically. Protein:DNA ratios were also higher in control fish. 3. Regression analysis indicated that RNA:DNA ratios were better predictors of final standard length and final wet weight than RNA concentration alone for the stressed conditions, but not the control condition.
引用
收藏
页码:323 / 327
页数:5
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