The effects of adding spirulina powder to bait on antioxidant capacity,serum biochemical indicators,and body composition of yellow catfish
The aim of this experiment is to investigate the effects of adding spirulina powder to feed on the antioxidant capacity,serum biochemical indicators,and body composition of yellow catfish.According to the principle of full randomization,800 yellow catfish were divided into 4 groups,with each group consisting of 5 replicates and 40 fish per replicate.The experiment lasted for a total of 42 days.Each group was fed with experimental feed supplemented with 0%,4%,8%,and 12%spirulina powder in the basic feed.The results showed that the serum total antioxidant capacity(T-AOC)and glutathione peroxidase activity(GSH Px)of yellow catfish in the 8%and 12%spirulina powder groups were significantly increased(P＜0.05),while the content of malondialdehyde(MDA)was significantly reduced(P＜0.05);The T-AOC ability and GSH Px activity in the muscles of yellow catfish were significantly increased in the 8%and 12%spirulina powder groups(P＜0.05);The MDA content in the muscle of yellow catfish was significantly reduced in the 8%spirulina powder group(P＜0.05);In addition,spirulina powder had no significant effect on the serum CAT activity and reduced glutathione(GSH)content of yellow catfish(P＞0.05),while spirulina powder had no significant effect on the CAT activity and GSH content in the muscle of yellow catfish(P＞0.05).The serum total protein and urea nitrogen content of yellow catfish in the 8%and 12%spirulina powder groups were significantly reduced(P＜0.05);In addition,spirulina powder had no significant effect on the serum albumin and triglyceride content,as well as the activities of alanine aminotransferase and aspartate aminotransferase in yellow catfish(P＞0.05).The crude protein content of yellow catfish in the 8%and 12%spirulina powder groups was significantly reduced(P＜0.05);The total flavor amino acid content of yellow catfish in the 8%and 12%spirulina powder groups was significantly reduced(P＜0.05);The total essential amino acid content of yellow catfish in the 4%～12%spirulina powder group was significantly reduced(P＜0.05);The total non essential amino acid content of yellow catfish in the 8%and 12%spirulina powder groups was significantly reduced(P＜0.05);In addition,spirulina powder had no significant effect on the crude fat,water content,and crude ash content of yellow catfish(P＞0.05).In summary,although it can effectively improve the antioxidant capacity of yellow catfish,excessive addition of spirulina powder has a certain negative impact on its serum biochemical indicators and body nutrition.
万方数据
维普
