Production of Hybrid Catfish
نویسندگان
چکیده
ferent species is a process called hybridization,with the offspring known as hybrids. Probably the best recognized animal hybrid is the mule,which is a cross between a female horse and a male donkey. Hybrids can have some characteristics of both parents. Breeding hybrids with selected or favored characteristics of each parent is one of the goals of animal husbandry. When a hybrid has characteristics superior to both parents it is said to have hybrid vigor or positive heterosis which, of course, is the ultimate breeding goal.
منابع مشابه
An AFLP-based genetic linkage map of channel catfish (Ictalurus punctatus) constructed by using an interspecific hybrid resource family.
Catfish is the major aquaculture species in the United States. The hybrid catfish produced by crossing channel catfish females with blue catfish males exhibit a number of desirable production traits, but their mass production has been difficult. To introduce desirable genes from blue catfish into channel catfish through introgression, a genetic linkage map is helpful. In this project, a genetic...
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—A 9-week growth study was conducted to compare the fingerling performance of two genetic groups of channel catfish Ictalurus punctatus (U.S. Department of Agriculture [USDA] 103 and USDA303) with that of blue catfish I. furcatus and their hybrid in an aquarium rack system. Fish of approximately 20 g were randomly selected from multifamily populations and acclimated to the aquarium rack system ...
متن کاملVariation in susceptibility to Henneguya ictaluri infection by two species of catfish and their hybrid cross.
Proliferative gill disease (PGD) in channel catfish Ictalurus punctatus is caused by the myxozoan parasite Henneguya ictaluri. There is no effective treatment for PGD, and mortalities can exceed 50% in severe outbreaks. One approach to controlling losses would be to utilize a less susceptible ictalurid species in pond culture; alternatively, one could identify the traits that convey resistance ...
متن کاملGrowth Response and Feed Utilization of Juvenile Hybrid Catfish Fed Diets Containing Distiller's Dried Grains with Solubles to Replace a Combination of Soybean Meal and Corn Meal
—A feeding trial was conducted in aquaria with juvenile hybrid catfish (channel catfish Ictalurus punctatus3blue catfish I. furcatus) to evaluate distiller’s dried grains with solubles (DDGS) as a replacement for a combination of soybean meal (SBM) and corn meal (CM). Twenty-five 75-L glass aquaria were each stocked with 30 juvenile hybrid catfish (initial weight1⁄4 1.16–1.25 g). Five replicate...
متن کاملAquaculture Crsp 22nd Annual Technical Report
An experiment was conducted in nine 200-m2 earthen ponds at the Asian Institute of Technology (AIT), Thailand from 17 July 2003 to 3 March 2004 (230 days). The objectives of the study were to assess the feasibility of co-culture of lotus and hybrid catfish in intensively fed ponds, to assess nutrient recovery from feed waste by lotus plants, to assess pond mud characteristics after lotus-fish c...
متن کاملGrowth of channel catfish (Ictalurus punctatus), blue catfish (I. furcatus), and their F1, F2, F3, and F1 reciprocal backcross hybrids in earthen ponds.
The F1 hybrid between a channel catfish female (Ictalurus punctatus) × a blue catfish (I. furcatus) male outperforms both parental species in most environments. However, reproductive isolating mechanisms between the species made it difficult to mass produce the F1 hybrid for commercialization until recent improvements in hormone usage. This study was undertaken to mix the genomes of the 2 speci...
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