Published 2005

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Publication details

Journal : Aquaculture , vol. 243 , p. 83–92–10 , 2005

Publisher : Elsevier

International Standard Numbers :
Printed : 0044-8486
Electronic : 1873-5622

Publication type : Academic article

Contributors : Gitterle, Thomas; Rye, Morten; Salte, Ragnar; Cock, James; Johansen, Harry; Lozano, Carlos; Suarez, Jorge A.; Gjerde, Bjarne

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In 1997, CENIACUA (Centro de Investigaciones para la Acuicultura en Colombia) in collaboration with AKVAFORSK (Institute of Aquaculture Research, Norway) initiated a family-based selection scheme in Penaeus (Litopenaeus) vannamei to improve growth rate and survival in ponds and tanks. This paper reports results from a series of tests in which a total of 430 full-sib families (representing 204 paternal half-sib families) were tested for harvest weight and survival in standard commercial and intensive growing environments. The families originated from two selected lines. The estimates of heritability (h(2)+/-S.E.) for harvest weight for the two lines were 0.24+/-0.05 and 0.17+/-0.04, and the corresponding estimates for survival in pond/tanks were 0.04+/-0.02 and 0.10+/-0.02. Results showed a favorable correlation between the estimated mean full-sib family breeding values for harvest weight and pond/tank survival (0.42 in line 1 and 0.40 in line 2) indicating that selecting for growth will cause a positive correlated response in overall survival. The genetic correlations between body weights and pond/tank survival in different grow-out environments were high, demonstrating low genotype by farm interaction (GXE) for both traits. (C) 2004 Elsevier B.V. All rights reserved.