Dietary Administration of Spirulina plantensis Increases Immune Parameters in White Shrimp Litopenaeus vannamei

Abstract

The immune parameters were examined after the white shrimp Litopenaeus vannamei had been fed diets containing Spirulina platensis dried powder (SDP) at 0 (control), 30, 60, and 90 g/kg for 1~3 weeks. The immune parameters examined are hyaline cells (HCs), granular cell (including semi-granular cell, GC), total hemocyte count (THC), phenoloxidase (PO) activity, respiratory burst (RB), and superoxide dismutase (SOD) activity. The HC, GC, and THC of shrimp fed a diet containing SDP at 60 g/kg were significantly higher than those of shrimp fed the control diet after 2 and 3 weeks. The PO activity, RB, and SOD of shrimp fed a diet containing SDP at 60 g /kg were significantly higher than those of shrimp fed the control diet after 2 and 3 weeks. S. platensis dried powder is considered as an immunostimulant, and can be used in diets to increase the innate immunity of white shrimp.白蝦Litopenaeus vannamei餵食含螺旋藻Spirulina plantensis飼料(0, 30, 60, 90 g/kg)經1-3星期，研究血淋巴球(hemogram)、酚氧化酵素(phenoloxidase)活性、呼吸爆(respiratory burst)、超氧歧化酵素(superoxide dismutase)活性。白蝦餵食含螺旋藻飼料(60 g/kg)經2-3星期，透明球(hyaline cell, HC)及總血球數(total hemocyte count, THC)顯著較對照組高。白蝦餵食含螺旋藻飼料(60 g/kg)經2-3星期，酚氧化酵素活性、呼吸爆、超氧歧化酵素活性均顯著較對照組高。螺旋藻可做為免疫激活劑，提升白蝦免疫力。