The effect of selection for greater growth rate in the GIFT strain on traits related to female reproduction (weight at spawning, number of eggs, number of fry, total weight of fry and number of dead fry) was studied. Available records comprised 10 generations of data from a total of 935 breeding ...
Hamzah, A.
,
Nguyen Hong Nguyen
,
Mekkawy, W.
,
Hooi Ling Khaw
,
Hoong Yip Yee
,
Abu Bakar, K.R.
,
Ponzoni, R.W.
,
Mohd Nor, S.A.
,
[Genetic parameters and correlated responses in female reproductive traits in the GIFT strain]
,
Genetic parameters and correlated responses in female reproductive traits in the GIFT strain
Many tilapia (Oreochromis spp.) farmers produce all-male populations because of the superior growth rate of males compared to females. To investigate differences in body weight at harvest of males and females among different tilapia strains, we analyzed data from 62,787 individuals collected from...
Lind, C.E.
,
Safari, A.
,
Agyakwah, S.K.
,
Attipoe, F.Y.K.
,
El-Naggar, G.O.
,
Hamzah, A.
,
Hulata, G.
,
Ibrahim, N.A.
,
Khaw, H.L.
,
Nguyen, N.H.
,
Maluwa, A.O.
,
Zaid, M.
,
Zak, T.
,
Ponzoni, R.W.
,
[Differences in sexual size dimorphism among farmed tilapia species and strains undergoing genetic improvement for body weight]
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Differences in sexual size dimorphism among farmed tilapia species and strains undergoing genetic improvement for body weight
The aims of this study were the estimation of genetic parameters for survival rate from tagging until harvest and the evaluation of the correlated response in survival rate to selection for harvest weight in the genetically improved farmed tilapia (GIFT) strain. The heritability for survival rate...
Hamzah, A.
,
Mekkawy, W.
,
Hooi Ling Khaw
,
Nguyen Hong Nguyen
,
Hoong Yip Yee
,
Abu Bakar, K.R.
,
Nor, S.A.M.
,
Ponzoni, R.W.
,
[Genetic parameters for survival during the grow-out period in the GIFT strain of Nile tilapia (Oreochromis niloticus) and correlated response to selection for harvest weight]
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Genetic parameters for survival during the grow-out period in the GIFT strain of Nile tilapia (Oreochromis niloticus) and correlated response to selection for harvest weight
Flesh characteristics comprising chemical composition (protein, fat and moisture percentages and pH) as well as a sensory attribute (colour) were measured in 1951 fillet samples from two generations of two populations (a selection line, selected for increased harvest weight, and a control line, s...
Hamzah, A.
,
Nguyen Hong Nguyen
,
Mekkawy, W.
,
Ponzoni, R.W.
,
Hooi Ling Khaw
,
Hoong Yip Yee
,
Abu Bakar, K.R.
,
Mohd Nor, S.A.
,
[Flesh characteristics: Estimation of genetic parameters and correlated responses to selection for growth rate in the GIFT strain]
,
Flesh characteristics: Estimation of genetic parameters and correlated responses to selection for growth rate in the GIFT strain