Effects of Dietary Copper Sources on Growth, Copper Concentration and Non-Specific Immune Responses of White Shrimp, Litopenaeus vannamei Fed with a Soybean Meal-Based Diet

Yu-Hung Lin ； Tzu-Han Lin

《臺灣水產學會刊》 47卷1期 (2020/03) Pp. 55-61

https://doi.org/10.29822/JFST.202003_47(1).0005

摘要

The study evaluated the effects of dietary copper (Cu) sources on growth, Cu concentration and nonspecific immune responses of white shrimp, Litopenaeus vannamei, fed with a soybean meal-based diet. Copper sulfate (CS) and basic copper chloride (BCC) were added into the basal diet at 5, 15 and 45 mg Cu/kg diet, respectively. Together with Cu unssupplemental control diet, total of 7 experimental diets were each fed to triplicate groups of shrimp (initial weight: 0.73±0.01 g) in a recirculating rearing system for 12 weeks. Final weight, weight gain and SGR were higher (P＜0.05) in shrimp fed the BCC 15 and BCC 45 diets than those in shrimp fed the control diet. Superoxide anion production ratio (respiratory burst activity) was the highest in shrimp fed the BCC 45 diet, followed by shrimp fed the CS 45 diet, and the lowest in shrimp fed control, CS 5, CS 15 and BCC 5 diets. Hepatopancreatic superoxide dismutase (SOD) activity was higher in shrimp fed the BCC 15 diet than that in shrimp fed control, CS 5 and CS 15 diets. Copper concentrations in hemolymph, hepatopancreas and whole body showed an increase trend when the dietary Cu concentration increased. The study demonstrated the essentiality of Cu when the experimental diets based on soybean meal for white shrimp. Basic copper chloride supplementation level at 45 mg Cu/kg diet showed the best growth performance and immune responses.

關鍵字

Copper ； White shrimp ； Soybean meal ； Growth ； Immune responses

參考文獻

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