Formulation of a fish feed for goldfish with natural astaxanthin extracted from shrimp waste

Formulation of a fish feed for goldfish with natural astaxanthin extracted from shrimp waste

BACKGROUND Astaxanthin is a xanthophyll carotenoid, which exhibits many important biological activities including a high degree of antioxidant capacity (AOC) and antibacterial activity, hence has a significant applicability in food, pharmaceutical and cosmetic industries. An attempt was made towards optimization of astaxanthin extraction conditions using three different extraction conditions an...

Feed Formulation for Fish and Poultry

Physicochemical and Antibacterial Properties of Chitosan Extracted from Waste Shrimp Shells

This research aims to study the production of chitosan from shrimp shell (Litopenaeus vannamei) of waste origin using two chemical methodologies involving demineralization, deproteinization, and the degree of deacetylation. The evaluation of the quality of chitosan from waste shrimp shells includes parameters for the yield, physical chemistry characteristics by infrared spectroscopy (FT-IR), th...

Feed Formulation and Feeding Strategies for Bait and Ornamental Fish

The Effects of Dietary Supplementation of Astaxanthin and

The present research was aimed to study the effects of different sources of carotenoids and their varying concentrations on the reproductive functions of goldfish. The study was carried out in seven treatments with three replicates at the Bony Fish Hatchery Complex (Rasht, Iran) from December 2011 to May 2012. Experimental diets containing 50, 100, and 150 mg kg-1 astaxanthin and 50, 100, and 1...