|Appears in Collections:||Aquaculture Journal Articles|
|Peer Review Status:||Refereed|
|Title:||Production of genetically female common carp, Cyprinus carpio, through sex reversal and progeny testing|
Kumar, H M Mohan
Kumar, S Pradeep
Srivastava, Prem Prakash
Mair, Graham C
|Citation:||Basavaraju Y, Kumar HMM, Kumar SP, Umesha D, Srivastava PP, Penman D & Mair GC (2008) Production of genetically female common carp, Cyprinus carpio, through sex reversal and progeny testing. Asian Fisheries Science, 21 (3), pp. 355-368. http://www.asianfisheriessociety.org/modules/library/singlefile.php?cid=205&lid=746|
|Abstract:||The common carp, Cyprinus carpio L., an introduced species to India, is an important species for aquaculture and enhanced fisheries in Karnataka state. Common carp has a number of advantages over the other carp species. However, one of the major disadvantages is that the present stock exhibits early sexual maturation and unwanted reproduction during grow-out, resulting in suppressed growth and small size at harvest. Considering the importance of the species, there is a need to find suitable solution(s) to this problem. The production of sterile or monosex populations are among the options. Fry of different age and size groups were treated with two androgens, namely 17α-methyltestosterone (MT) and 17α-methyl-di-hydroxy-testosterone (MDHT), in a series of trials. MT treatments at 100 mg•kg-1 yielded only partial sex reversal (77.14% male), while MDHT treatments at 50 and 100 mg•kg-1 resulted in complete masculinisation (100% male)in “small” size 50 day old common carp. The hormone treated fish were crossed with normal females to identify neo-males, which produced all or predominantly female progeny. The results indicate the potential of MDHT for hormonal masculinisation and the possibility of producing all female common carps through this approach.|
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|Basavaraju et al 2008 AFS.pdf||Fulltext - Published Version||770.09 kB||Adobe PDF||Under Permanent Embargo Request a copy|
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