Tag catfish

An in-pond raceway system in Alabama was utilized to supply various niche markets, including Asian grocery store chains that desired fresh live fish, recreational pond stocking businesses, private pond owners and fee fishing operations. In many cases, a higher price was achieved. 

Recent surveys indicate that global finfish production has doubled over the last decade, but most of this growth happened in the first half of this period. Production is still growing but at slower pace than in recent years, and annual growth rates must increase to at least 7.2 percent to maintain the double-in-a-decade objective. 

Although relatively expensive, mechanical aeration increases production. Asian-style paddlewheel aerators are widely used but are inefficient. Testing has led to more efficient designs that are now widely used in U.S. catfish and shrimp ponds. 

In life cycle analysis of aquaculture, there is a danger of the entire array of embodied resources and impacts being assigned to the production facility. Producers have no control over the inefficiencies or impacts associated with feed production, but can help lessen resource use through good management practices. 

A study compared holding gravid catfish in mesh bags to tanks as a stress-reduction strategy and to improve reproductive performance. 

Clove oil and eugenol have been recommended and used as anesthetics for several fish species. Moreover, these products have received the attention of researchers because of their chemo-preventive effects, as well as their anti-inflammatory and antioxidant properties. 

Phytogenics comprise a class of plant-derived feed additives that improve animal performance. They have been shown to exert multiple positive effects in fish and shrimp, including improvement of feeding efficiency and digestion, reduction of nitrogen excretion and improvement of gut flora and health. 

Field trails in Alabama, USA, demonstrated the potential of raising striped mullet with Pacific white shrimp in inland ponds. Using wild-caught fingerlings at low density, the trials found the same survival rates as for mullet and shrimp grown separately. 

The yellow coloration in catfish fillets caused by carotenoids does not affect flavor, but many consumers see the yellowish fillets as inferior. 

Lab studies with channel catfish and rainbow trout have found that phytogenic feed additives like essential oils can help improve weight gain, feed conversion and immunity to disease. 

In a laboratory trial, juvenile pangasius given a diet with 0.2 percent potassium diformate (KDF) had better weight gain, feed conversion and survival than fish that did not receive KDF. 

A significant correlation was established between ovarian fluid pH of stripped eggs and subsequent hatch of hybrid catfish eggs. 

The Fishery is an inland farm in California that raises largemouth bass, carp, sturgeon and catfish in a recirculating system that minimizes water use. 

Hybrid catfish offer production advantages over channel catfish. Trials show greater survival, faster growth and shorter production cycles. 

Studies by the author demonstrated that until morning D.O. concentrations fell below 3.0 mg/L, feed consumption of channel catfish was not affected.