摘要:

Diets containing 17α‐Methyl‐testosterone were given to grey mullet,Mugil cephalus, during the refractory period in its reproductive cycle at the dosage of 25 mg or 12.5mgkg−1fish. Fish in experiment I were fed the diet containing methyl‐testosterone every day for 55 weeks, and fish in Experiment II were fed the same diet daily for the first 10 weeks, and three times per week for the next 42 weeks. Fish were checked for the presence of sperm weekly or bi‐weekly and tested for fertility during the spawning season. Terminal gonad weights and histology were compared with control groups. This study demonstrated that male mullet will mature 3 weeks or less by oral administration of 12.5 mg methyl‐testosterone kg−1fish daily. Fish can then be maintained in mature condition by feeding them methyl‐testosterone at 12.5 mg kg−1th

ISSN:0022-1112    

DOI:10.1111/j.1095-8649.1985.tb04243.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

ISSN:0022-1112    

DOI:10.1111/j.1095-8649.1985.tb04244.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY