The effect of salt concentrations on brine shrimp hatchability

Abstract

Appropriate salt concentration for hatching of brine shrimp at on-farm is a challenge to fish farmers. This experiment thus determined the appropriate salt concentration that gave the best hatching percentage in a completely randomized design experiment of five treatments in triplicate and designated as TI (25ppt), TII (27ppt), TIII (29ppt), TIV (31ppt) and TV (33ppt) salt concentrations respectively while other environmental conditions were kept constant. The results showed significant difference (p<0.05) in the brine shrimp hatchability percentage at varying salt concentrations. The hatchability percentages of 25ppt (47.45%), 29ppt (48.61% and 33ppt (45.12%) were significantly (p<0.05) higher than that of 27ppt (36.65%) and 31ppt (40.01%) respectively. Therefore, salt concentration of 29ppt will produce the best hatchability of brine shrimp thus recommended to fish farmers for larvae rearing.