Addressing Reproducibility in Cryopreservation, and Considerations Necessary for Commercialization and Community Development in Support of Genetic Resources of Aquatic Species

Leticia Torres Terrence R. Tiersch

Cryopreservation techniques have been developed for many aquatic species, but commercial use has lagged behind that of cryopreserved germplasm in terrestrial livestock industries. Torres and Tiersch (2018) reviewed the factors underlying the need for standardized procedures, terminology, and reporting guidelines, identified major sources of irreproducibility, and provided recommendations to address reproducibility and to influence commercial development. [Full Article]

Replacing Soybean Meal with Alternative Protein Sources in Diets for Pond-raised Hybrid Catfish, ♀ Ictalurus punctatus × ♂ Ictalurus furcatus.

Menghe H. Li Brian G. Bosworth Penelope M. Lucas

Increased soybean meal prices have spurred searches for alternative feed ingredients to replace soybean meal in diets for hybrid catfish. Li et al. (2018) found that soybean meal can be replaced completely by a combination of cottonseed meal and one or two alternatives such as distillers dried grains with solubles, peanut meal, or porcine meat and bone meal. These alternative diets had no effect on production and processing characteristics, or fillet proximate composition. [Full Article]

Effect of Two Novel Experimental Microdiet Types on Growth, Survival, and Pigmentation during the Weaning Period of the Fine Flounder, Paralichthys adspersus, Larvae

Lucas Orihuela Melissa Montes Joel Linares Angélica Castro Lili Carrera Juan P. Lazo

The quality of microdiets for cultured marine fish larvae is critical to successful weaning and is affected by the manufacturing processes used. Orihuela et al. (2018) compared two novel types of experimental microdiets for weaning fine flounder larvae. While both types showed promise, the particle-assisted rotational agglomeration process produced smaller, less-dense particles that reduced the sinking rate and increased chances for larvae to detect and ingest the diet. [Full Article]

Effects of Integrated Shrimp Farming in Vietnam

Hai Giang Phung Duong Bao Pham

Shrimp exports from Vietnam, a leader in global shrimp supply, are produced primarily by small-scale farmers who are often less able to comply with food safety and environmental sustainability requirements. Phung and Pham (2018) developed a value chain analysis that showed that integrated shrimp farming is more effective than an industry structure composed primarily of small-scale and independent farms. [Full Article]