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A novel breeding programme for improved growth in barramundi Lates calcarifer (Bloch) using foundation stock from progeny-tested parents

Macbeth, G.M. and Palmer, P.J. (2011) A novel breeding programme for improved growth in barramundi Lates calcarifer (Bloch) using foundation stock from progeny-tested parents. Aquaculture, 318 (3/4). pp. 325-334.

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Article Link(s): http://dx.doi.org/10.1016/j.aquaculture.2011.05.03...

Publisher URL: http://www.elsevier.com


Rapid genetic gains for growth in barramundi ( Lates calcarifer) appear achievable by starting a breeding programme using foundation stock from progeny tested broodstock. The potential gains of this novel breeding design were investigated using biologically feasible scenarios tested with computer simulation models. The design involves the production of a large number of full-sib families using artificial mating which are compared in common growout conditions. The estimated breeding values of their paternal parents are calculated using a binomial probit analysis to assess their suitability as foundation broodstock. The programme can theoretically yield faster rates of genetic gain compared to other breeding programmes for aquaculture species. Assuming a heritability of 0.25 for growth, foundation broodstock evaluated in two years had breeding values for faster growth ranging from 21% to 51% depending on the genetic diversity of stock under evaluation. As a comparison it will take between nine and twenty-two years to identify broodstock with similar breeding values in a contemporary barramundi breeding programme.

Item Type:Article
Corporate Creators:Department of Employment, Economic Development and Innovation (DEEDI), Agri-Science, Fisheries and Aquaculture, Animal Science
Business groups:Agri-Science, Animal Science, Fisheries and Aquaculture
Additional Information:© Crown copyright 2011
Keywords:Animal breeding; aquaculture; breeding programmes; broodstock; computer simulation; evaluation; families; genetic diversity; genetic gain; growth rate; heritability; mating; models; parents; performance traits; progeny; progeny testing; simulation models.
Subjects:Aquaculture and Fisheries > Aquaculture
Animal culture > Breeding and breeds
Deposited On:13 Dec 2011 00:17
Last Modified:13 Dec 2011 00:17

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