Studies on functional properties and chemical composition of commercial shrimp feeds used in Andhra Pradesh, India.

Abstract

Two separate studies were carried out to ascertain the functional properties and chemical composition of shrimp feeds. In the first study five different commercial shrimp feeds (Brand-A, B, C, D and E) were collected from Andhra Pradesh-India. In the second study, five different grades (Grade-1.0, 1.2, 1.4, 1.6 and 1.8mm diameter) of shrimp feed from a particular firm were collected. The results of the first study revealed that Brand-C had the lowest water retention (156.33%). There was a significant (P<0.05) difference in bulk density among the brands (786.69-838.61 g/L). Swelling capacity has crossed >100% in Brand-A, B and D. Variations of chemical composition are found to be within the acceptable level. In the second study, as the pellet size increases (1.0-1.8mm), water retention (182.87-158.85%) and dry matter leaching (8.58-3.95%) were decreased, and bulk density (755.06-807.75 g/L) was increased. The chemical composition of feed with varying diameters showed significant variations.