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Heritability of reproductive traits and genetic correlations with growth in the black tiger prawn Penaeus monodon reared in tanks |
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| Authors: | Michael Macbeth Matthew Kenway Matthew Salmon John Benzie Wayne Knibb Kate Wilson |
| Affiliation: | aAnimal Research Institute, Department of Primary Industries and Fisheries, Queensland, Locked Mail Bag 4, Moorooka, Qld 4105, Australia bAustralian Institute of Marine Science, PMB 3, Townsville Qld 4810, Australia cCentre for Marine and Coastal Studies, University of New South Wales, Sydney, NSW 2052, Australia dBribie Island Aquaculture Research Centre, Department of Primary Industries and Fisheries, Queensland, PMB 2066, Woorim, Qld 4507, Australia |
| Abstract: | Captive-reared broodstock of the black tiger prawn (Penaeus monodon) have exhibited poor reproductive performance limiting attempts to domesticate this species. The potential for improved reproductive performance was assessed by determining heritabilities of four measures of reproductive performance, their genetic correlations with each other and with growth rate and weight at age. Heritability estimates (h2 ± S.E.) obtained from √ (days to spawn), √ (egg number), √ (nauplii number) and arcsin√ (proportion hatched) were 0.47 ± 0.15, 0.41 ± 0.18, 0.27 ± 0.16, and 0.18 ± 0.16, respectively. Estimates of genetic correlations between reproductive traits and weight at age, or growth rate were less than 0.5 except for √ (egg number) and weight at 54 weeks (0.93 ± 0.19) and √ (egg number) and 16–54-week growth (0.63 ± 0.29). |
| Keywords: | Penaeus monodon Heritability Growth Reproduction Genetic correlations |
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