Hybrid catfish offer production advantages over channel catfish. Trials show greater survival, faster growth and shorter production cycles.
Although there is increasing interest in blue catfish, a potential disadvantage of the fish when compared to channel catfish is their reported poorer tolerance of low dissolved-oxygen concentrations.
The authors conducted a study to determine whether channel catfish systematically develop off-flavors after partial harvest as well as the possible origins of the flavors.
Essential oils are linked to livestock performance gains. In research with channel catfish, inclusion resulted in greater feed consumption and weight gain.
USDA and partners are developing channel catfish that exhibit superior growth, fillet yield and resistance to enteric septicemia. Although ongoing research continues to select the USDA lines for better performance, studies comparing the strains have been inconclusive.
Higher production typically results in higher profits at channel catfish farms, but ponds must be individually managed to maximize production.
Research with channel catfish found that the induction of puberty is a developmental process that requires temperature cycles and is independent of body size. It may be possible to achieve early maturation in channel catfish in less than two years.
Studies indicate dietary arginine supplementation may constitute an effective means of increasing immunocompetency and disease resistance of fish.
Witholding feed from channel catfish during the manifestation of enteric septicemia is a common practice, but discontinued feeding after an ESC challenge increased mortality.