In grinding aquaculture feed to proper particle sizes, parameters of consideration include particle size distribution and pellet density.
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.
Water flow within channels can be measured using the float method or calculated using rating curves that project water velocity based on a series of finite measurements.
The introduction of specific pathogen-free white shrimp brought both a new species and new ideas to China’s aquaculture industry.
The Central Pertiwi Bahari farms in Indonesia found polyculture of white shrimp and black tiger shrimp at a density of 70 PLs per square meter promising.
Research at the Oceanic Institute found that white shrimp grown in a raceway at high density could reach 34-grams in 155 days with minimal water use.
Hatchery development for freshwater prawns, based on the modified greenwater system, is making expansion of aquaculture in Vietnam’s Mekong Delta possible.
The optimum dietary lipid level for tilapia ranges from 10 to 15 percent. Various vegetable oil products show promise as replacements for fish oil in feeds.
In a study, microbial flocs contributed about 50 percent of feed material as dry solids and about 50 percent of the protein requirement of tilapia.
Tilapia culture is an important component of local food production in Honduras. Rising exports have raised in-country demand and production.