IJSRP, Volume 8, Issue 8, August 2018 Edition [ISSN 2250-3153]
Tran Thi Thanh Hien, Nguyen Thi Cam Duyen, Tran Le Cam Tu, Nguyen Van Khanh and Tran Minh Phu
Abstract:
This study was aimed determine the dietary methionine (Met) and lysine (Lys) requirement for snakehead fingerlings (2-4 g fish-1). Basal diets in two experiments contained approximately isonitrogenous 42 % and isoenergetic 20.3 KJ g-1. In the first experiment on Met requirement, L-Met was added to the basal diets including six treatments containing from 7.3 to 14.8 g Met kg-1 diet (17.5 to 35.3 g Met kg-1 protein) interval increasing of 1.5 g kg-1 diet. In the second experiment determining Lys requirement, L-Lys HCL was added to basal diets including seven treatments containing from 12.6 to 36.6 g Lys kg-1 diet (30.1 to 87.2 g Lys kg-1 protein ), interval increasing of about 4 g kg-1 diet. The experiements were randomly designed with four replications for each treatment.