Health & Welfare - Page 44 of 85 - Responsible Seafood Advocate

1 March 2012

The Shrimp Book: Small-scale shrimp farmers and global markets

It is time to recognize the crucial role of small-scale farmers in Asian aquaculture production and trade. The socially and economically important small-scale sector – the “mainstay” of Asian aquaculture – is innovative, but faced with constraints in modern markets. The sector needs investment from public and private sectors to compete and thrive. Another challenge is to develop certification programs in ways that promote responsible aquaculture expansion with due consideration to small-scale farming.

2 January 2012

Protein isolates recovered from processing could yield nutraceutical seafood products

Meat recovered from seafood processing byproducts could be combined with nutraceutical ingredients to form customizable seafood items.

2 January 2012

Study tests disinfectant alternatives to formalin

Formalin use is a common fish parasite control, but the chemical’s potential work safety and ecological impacts are leading to a search for alternatives.

1 January 2012

New aquaculture drugs under FDA review

Only eight active pharmaceutical ingredients available in 18 drug products have been approved by the U.S. Food and Drug Administration for use in aquaculture. The approval process can be lengthy and expensive.

1 January 2012

Shrimp genetic improvement in Ecuador

The authors are exploring alternative models for shrimp breeding that address genotype-environment interactions with solutions that could advance breeding in South and Central America.

1 January 2012

PPI: New metric for measuring productivity, predicting profitability

A proposed new metric, the production productivity index, or PPI, reports daily production for shrimp postlarvae. The new metric converts production data into relative terms, allowing meaningful comparisons across farms and individual ponds regardless of production days, pond size or stocking density.

1 January 2012

Blue catfish outproduce channel catfish under low-D.O. conditions

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.

1 January 2012

Probiotics, prebiotics in aquatic animals

Research has shown that probiotics and prebiotics can help mediate stress responses and improve disease resistance, growth performance, feed utilization, carcass composition and other traits by stimulating animals’ innate immune systems.

1 January 2012

Aquaculture of Amazon fish in Latin America

Many fish species that live in the Amazon basin have great potential for aquaculture. The main species currently cultured in the region is tambaqui, a fast-growing, omnivorous fish that tolerates poor water quality.

1 January 2012

Early Mortality Syndrome affects shrimp in Asia

Early Mortality Syndrome is a new disease that has been detected at shrimp farms in Asia. It appears within 30 days of stocking and causes symptoms that include lethargy; soft, darkened shells and mottling of the carapace.

1 November 2011

Improving salinity tolerance in tilapia

Salinity tolerance in tilapia can be improved by optimizing acclimation protocols, adding salt to the diet or hybridization between fast-growing and salt-tolerant species.

1 November 2011

High nitrate levels toxic to shrimp

Shrimp exposed to high concentrations of nitrate exhibit shorter antennae, gill abnormalities and hepatopancreas lesions. Nitrate toxicity is more of an issue for shrimp raised in lower-salinity waters.

1 November 2011

Public-private partnerships boost monosex tilapia fry production

With a hatchery system that involves collection of eggs and larvae, and hormonal sex reversal, it is possible to produce billions of monosex tilapia (all-male) fry to satisfy demand and accelerate aquaculture development.

1 November 2011

Taurine: Critical supplement for marine fish feed

Taurine may not only improve growth and performance, but also is required to reduce nutritional diseases such as green liver disease and low hematocrit levels in some fish.

1 November 2011

In situ detection of blue crab reovirus

An in situ hybridization procedure can be used to diagnose blue crabs from Chesapeake Bay infected with a reovirus.