In order to study the changes in body shape,muscle nutrition,taste,immunity,and antioxidant substances of adult bighead carp in natural water bodies during temporary rearing in different months,a systematic study was conducted on the temporary cultivation of bighead carp in Huating Lake in May,August,November and March of the following year.The results showed that from the perspective of body shape,tem-porary feeding treatment had a slimming effect on bighead carp;The basic nutritional content of bighead carp muscle varies in different months.After temporary cultivation,the protein and fat content of bighead carp muscle decreases,while the water and ash content increases;The compo-sition of fatty acids changes,mainly manifested in a decrease in saturated fatty acid(SFA)content and an increase in polyunsaturated fatty acid(PUFA)content;The content of muscle immunity and antioxidant components significantly decreases with the prolongation of temporary maintenance time;The total amount of free amino acids continues to increase with the extension of temporary incubation time,and the propor-tion of sweet amino acids continues to increase;The total amount of flavor nucleotides increased.
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