Breeding performance and traits inheritance of hybrid catfish, Clarias macrocephalus and Clarias gariepinus
Interspecific hybridization between Clarias macrocephalus (CM) and Clarias gariepinus (CG) has been conducted to produce hybrid with specific desirable traits. To evaluate its potential application in aquaculture, fertility and performance of desirable traits (e.g. growth, external morphology, flesh...
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Institut Akuakultur Tropika
2011
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my.umt.ir-6942016-03-10T07:31:10Z Breeding performance and traits inheritance of hybrid catfish, Clarias macrocephalus and Clarias gariepinus Pham, Thanh Liem SF 105 .P4 2008 Pham, Thanh Liem Breeding performance and traits inheritance of hybrid catfish, Clarias macrocephalus and Clarias gariepinus Animal breeding Interspecific hybridization between Clarias macrocephalus (CM) and Clarias gariepinus (CG) has been conducted to produce hybrid with specific desirable traits. To evaluate its potential application in aquaculture, fertility and performance of desirable traits (e.g. growth, external morphology, flesh quality, disease resistance) were examined on reciprocal Fi and backcross hybrids. Reciprocal hybrids were partially fertile with various abnormalities in gonad development that resulted in low gamete production. Abnormalities observed in gonad development of all hybrid genotypes included a single ovary or testis, tumor-like and adipose-like tissues in ovaries, ovotestis, and retarded gonad. Reciprocal hybrid males had problems with spermatogenesis that was likely due to genetic incompatibility since treatment with hormones did not improve spermatogenesis. 2011-03-09T01:32:14Z 2011-03-09T01:32:14Z 2008-09 Thesis http://hdl.handle.net/123456789/694 en application/pdf application/pdf Institut Akuakultur Tropika |
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SF 105 .P4 2008 Pham, Thanh Liem Breeding performance and traits inheritance of hybrid catfish, Clarias macrocephalus and Clarias gariepinus Animal breeding |
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SF 105 .P4 2008 Pham, Thanh Liem Breeding performance and traits inheritance of hybrid catfish, Clarias macrocephalus and Clarias gariepinus Animal breeding Pham, Thanh Liem Breeding performance and traits inheritance of hybrid catfish, Clarias macrocephalus and Clarias gariepinus |
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Interspecific hybridization between Clarias macrocephalus (CM) and Clarias gariepinus (CG) has been conducted to produce hybrid with specific desirable traits. To evaluate its potential application in aquaculture, fertility and performance of desirable traits (e.g. growth, external morphology, flesh quality, disease resistance) were examined on reciprocal Fi and backcross hybrids. Reciprocal hybrids were partially fertile with various abnormalities in gonad development that resulted in low gamete production. Abnormalities observed in gonad development of all hybrid genotypes included a single ovary or testis, tumor-like and adipose-like tissues in ovaries, ovotestis, and retarded gonad. Reciprocal hybrid males had problems with spermatogenesis that was likely due to genetic incompatibility since treatment with hormones did not improve spermatogenesis. |
format |
Thesis |
author |
Pham, Thanh Liem |
author_facet |
Pham, Thanh Liem |
author_sort |
Pham, Thanh Liem |
title |
Breeding performance and traits inheritance of hybrid catfish, Clarias macrocephalus and Clarias gariepinus |
title_short |
Breeding performance and traits inheritance of hybrid catfish, Clarias macrocephalus and Clarias gariepinus |
title_full |
Breeding performance and traits inheritance of hybrid catfish, Clarias macrocephalus and Clarias gariepinus |
title_fullStr |
Breeding performance and traits inheritance of hybrid catfish, Clarias macrocephalus and Clarias gariepinus |
title_full_unstemmed |
Breeding performance and traits inheritance of hybrid catfish, Clarias macrocephalus and Clarias gariepinus |
title_sort |
breeding performance and traits inheritance of hybrid catfish, clarias macrocephalus and clarias gariepinus |
publisher |
Institut Akuakultur Tropika |
publishDate |
2011 |
url |
http://hdl.handle.net/123456789/694 |
_version_ |
1738395542618112000 |
score |
13.160551 |