Tag survival

A trial in a lined, greenhouse-enclosed raceway evaluated the use of a heterotrophic biofloc system equipped with aeration, supplemental oxygen injection and centralized heating to achieve good shrimp production. 

The quality of postlarvae supplied by a shrimp hatchery can vary considerably. Common myths, such as acceptance of low survival and insufficient concern for water quality, can contribute to lower animal quality. 

An eight-week growth trial evaluated the effects of potassium diformate on the growth performance and digestibility of Pacific white shrimp. Weight gain was not significantly affected by different levels of PDF in diets, and survival was high for all treatments. 

The Maricultura del Pacífico hatchery in Mexico uses two-stage selection that controls the pedigree of every animal to minimize inbreeding. 

Fixed microbial communities grown as periphyton on immersed substrates present advantages in terms of pond productivity and carbon and nutrient absorption from water. Periphyton can reduce feed inputs as well as increase growth and survival rates in shrimp.