Aquaculture America 2020

February 9 - 12, 2020

Honolulu, Hawaii

EFFECT OF STRAIN ON GROWTH RATE OF CHANNEL CATFISH Ictalurus punctatus FEMALE × BLUE CATFISH I. furctatus HYBRIDS

Nermeen Y. Abassa, b* and Rex A. Dunhama
a School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, AL 36849, USA.
b Department of Agricultural Botany, Faculty of Agriculture Saba-Basha, Alexandria University, Alexandria City, P.O. Box 2153, Egypt.
*n.y.abass@alexu.edu.eg
 

Growth is an economically important trait in aquaculture. The channel catfish, Ictalurus punctatus, ♀ × blue catfish, I. furctatus, ♂ hybrid catfish have become common in the U.S. aquaculture industry accounting for 50-75% of the U.S. catfish production. Performance of hybrid catfish can be further improved through strain selection and likely through recurrent reciprocal selection. This study was conducted to compare the growth rate of the channel catfish female × blue catfish male hybrid and determine the effect of family, genetic type of dam and genetic type of sire on the body weight of hybrid progeny. In general, strain of sire effects were more influential than strain of dam effects, which also should be considered in practical catfish genetics and breeding programs.