Health & Welfare
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.
Health & Welfare
High-soy, fishmeal-free diets support Florida pompano growth
The authors have achieved good growth using a fishmeal-free diet for the carnivorous marine fish Florida pompano. In studies, they used pompano as a model marine species in a cost/benefit analysis of two extruded diets.
Health & Welfare
Plant, poultry byproduct proteins tested in shrimp diets
A study examined the replacement of poultry byproduct meal with plant proteins and low levels of squid meal in shrimp feeds. Production results for shrimp raised in ponds showed no significant difference in final weight, yield, FCR and survival among the four treatments with varied levels of poultry meal.
Aquafeeds
Alternatives to fishmeal perform well in low-salinity shrimp farm trial
In a white shrimp farm trial in a low-salinity environment, alternatives to fishmeal did not negatively impact the growth, survival or FCR of the shrimp.
Aquafeeds
Fishmeal replacement in diets effective at shrimp farm trials
Shrimp farm trials demonstrated the feasibility of fishmeal replacement with soybean and corn gluten meal with little adverse effect on production performance.
Health & Welfare
Effects of varied dietary lipid sources tested in tilapia study
A study of Nile tilapia provided feed with varying dietary lipid sources found that fish fed a diet with beef tallow exhibited poorer survival and growth performance than fish fed diets with plant oils, fish oil, or combinations of oils and tallow.
Health & Welfare
Methionine-, sulfur-containing amino acids: Limiting nutrients in commercial formulations?
Trials indicated that in order to determine methionine and TSAA requirements for shrimp, methionine must be added to research feeds in either a chelated or covalently bound form.
Aquafeeds
Plant proteins effectively replace fishmeal in shrimp feed trial
A commercial-scale shrimp feed trial demonstrated that soybean meal and corn gluten meal are effective protein alternatives to fishmeal in shrimp feeds.
Health & Welfare
Phytase supplementation in aquaculture diets improves fish, shrimp growth performance
Despite research challenges, ongoing work on phytase supplementation in shrimp is striving to enhance shrimp feed performance in similar ways.
Aquafeeds
Rethinking feeding for cultured shrimp
Underfeeding can slow growth rates and overfeeding adversely affects water quality so it is critical to adjust feeding rates to meet actual demands of shrimp.
Health & Welfare
Nutrient requirements of penaeid shrimp
Penaeid shrimp need the same nutrients required by all animals, including protein, lipids, energy sources, vitamins, minerals, oxygen and water.
Health & Welfare
Nutritional considerations for Pacific white shrimp reared in inland, low-salinity waters
Numerous environmental, social and economic advantages support the expansion of euryhaline shrimp and fish production away from coastal environments.
Health & Welfare
Stocking density, nursery duration influence shrimp growth, survival during grow-out
A nursery phase is a significant management strategy for many shrimp farmers in tropical regions and is becoming standard practice in subtropical regions.
Health & Welfare
Size-grading experiments yield strong advice for tilapia hatcheries
In an experiment in which tilapia were sorted by size and reared separately, large individuals maintained their size advantage after eight weeks of culture.
Aquafeeds
Live food enrichments enhance diets for larval yellowtail snappers
Yellowtail snappers produce small larvae that are a challenge to rear. Initial protocols have resulted in survival of only 3 percent from egg to juvenile.
Aquafeeds
Growth trials replace fishmeal in red drum diets
Given the finite supply of fishmeal and other marine protein sources, alternative ingredients are needed to replace fishmeal for production diets for marine fish.