Analysis of a diallel cross to estimate effects of crossing on performance of red swamp crawfish, Procambarus clarkii

A complete diallel cross among three populations of red swamp crawfish, Procambarus clarkii, was used to estimate genetic effects for body size traits and dressout percentage. Offspring were grown in 2.4-meter diameter fiberglass pools with rice as forage. Crawfish were harvested after 150 days, sor...

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Veröffentlicht in:	Aquaculture 1994-04, Vol.121 (4), p.301-312
Hauptverfasser:	Bosworth, Brian G., Wolters, William R., Saxton, Arnold M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal aquaculture Animal productions Animal reproduction APTITUD COMBINATORIA APTITUDE A LA COMBINAISON Aquaculture ARROZ Biological and medical sciences Body size COMBINING ABILITY CROISEMENT DIALLELE Crustacea CRUZAMIENTO DIALELO DESEMPENO DIALLEL CROSSING Freshwater Fundamental and applied biological sciences. Psychology HETEROSIS Invertebrate aquaculture MADRE MERE MOTHERS PROCAMBARUS Procambarus clarkii RICE RIZ Shellfish VIGOR HIBRIDO VIGUEUR HYBRIDE
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Zusammenfassung:	A complete diallel cross among three populations of red swamp crawfish, Procambarus clarkii, was used to estimate genetic effects for body size traits and dressout percentage. Offspring were grown in 2.4-meter diameter fiberglass pools with rice as forage. Crawfish were harvested after 150 days, sorted by sex and male maturity stage, and measured for dressout percentage and nine body size traits. Estimates of heterosis, line, maternal, reciprocal effects and general combining ability for traits were obtained by forming contrasts among appropriate least squares means. Estimates were made for all animals combined and for mature males, immature males, and females separately. Significant ( P
ISSN:	0044-8486 1873-5622
DOI:	10.1016/0044-8486(94)90266-6