Effects of Sangrovif on the performances of tra catfish (Pangasius hypophthalmus) cultured in earthen ponds

摘要

Tra catfish (Pangasius hypophthalmus) is a dominant cultured species in Vietnam in terms of production. Its aquaculture production in 201 I was approximate 1.2 million metric tons. The main culture system for tra catfish is an intensive model in earthen ponds with a very high density and yield. In this model, feed cost comprises the main part of production cost.The cost feed increased recently, leading to a reduction in profit for farmers. In order to improve the profit of tra catfish farming, feed cost should be reduced. One of the measures to reduce feed cost is through feed additives which improve nutrient absorption and utilization.