Tag Shrimp

Vietnam Organic applied an enzymatic hydrolysis process on shrimp head waste to produce a shrimp soluble extract (SSE) feed attractant that contains a mixture of free amino acids and peptide. 

Recent research by the authors discovered genetic markers for the identification of Pacific white shrimp with enhanced capability to convert soy protein in feed. 

There is a clear difference between the shrimp postlarvae traits that are economically important in Central and South America versus those of Asia, creating a challenge for breeders to satisfy the somewhat opposing breeding goals the regions demand. 

Applied to shrimp postlarvae at Thai and Latin American farms, a thermal treatment of constant water temperature increased final survival rates. 

Monitoring of Vibrio bacteria in shrimp larvae determined a relationship among hepatopancreas color, bacteria concentration and signs of early mortality syndrome. 

A laboratory study at the University of Arizona examined the effects of tilapia to control EMS and mortality in Pacific white shrimp.in controlling AHPN. 

Mushiness of shrimp tails is often associated with head-on shrimp. Results from the authors’ study, however, indicated that texture values did not vary much between headless and head-on shrimp stored over a two-week period at 4 degrees-C. 

The use of biofloc systems for shrimp culture requires monitoring of water quality parameters, particularly suspended solids levels. 

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. 

A study of shrimp promotions by supermarkets in northern Spain indicated that shrimp prices evolve in accordance with demand quantities. In periods of high demand, retailers generally increase prices to maximize margins. 

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. 

Based on the results of a study in Peru, the authors found that the high volumes of quick lime and hydrated lime needed to effectively control vibriosis outbreaks in shrimp ponds would raise pH levels in culture water and stress the animals under culture. 

In trials raising larger juvenile shrimp than those used previously in indoor super-intensive recirculating raceway systems, the positive effects from increased stocking size, growth rate and survival resulted in a reduced crop duration time. 

Extrusion manufacturing of aquafeeds has recently seen advances in several areas. The development of new die technology has multiplied hourly output. 

In studies of early mortality syndrome/acute hepatopancreatic necrosis syndrome at an Agrobest shrimp farm in peninsular Malaysia, results indicated that the disease originated with infected postlarvae and quickly spread throughout the farm.