A COMPARATIVE STUDY ON THE NUTRITIONAL CHARACTERISTICS OF MALE AND FEMALE CHINESE HOOK SNOUT CARP (OPSARIICHTHYS BIDENS)

The nutritional composition of fish muscle is an important reference data for the design of fish feed formulae. However, the nutritional composition of the muscle of Chinese hook snout carp has not been analyzed at present. In addition, considering the obvious individual difference between male and female Chinese hook snout carp, there may also be significant difference in nutritional composition. To provide a reference for the feed formula design of artificially cultured Chinese hook snout carp, the muscle nutrient composition of five wild male and female individuals was analyzed in this study. Our results showed that water, crude protein, crude fat, and crude ash contents had no significant differences between male and female fish. Although there was no significant difference in the contents of most amino acids between male and female fish, the contents of flavored amino acids, essential amino acids and total amino acids in male fish muscle were significantly higher than those in female fish muscle. The proportion of saturated fatty acids, monounsaturated fatty acids, and polyunsaturated fatty acids was 1.37:1:1.80, and most of fatty acids showed significant difference between male and female fish.