摘要
文章探究了维生素E(Vitamin E,V_E)和裂壶藻(Schizochytrium sp.,Sch)对斑节对虾(Penaeus monodon)雄虾精荚再生的作用。以基础饲料配制了4种不同配合饲料(0添加组;V_E 200组;1%Sch组;V_E 200+1%Sch组),饲喂被挤压排出精荚的成熟雄性斑节对虾40 d,评估斑节对虾雄虾精荚再生后的精子数量和质量。结果表明,添加量为200 mg·kg~(-1) V_E饲料组的活精子数百分比显著高于对照组(P<0.05);单一添加1%裂壶藻饲料组的活精子数与对照组间差异不显著(P>0.05);共同添加200 mg·kg~(-1) V_E和1%裂壶藻的饲料组的精子总数显著高于对照组(P<0.05)。综合精荚质量、精子数量及活精子数百分比3个指标得出,饲料中共同添加1%裂壶藻与200 mg·kg~(-1) V_E对斑节对虾雄虾精荚的再生和提高精子数量具有协同促进作用。
To investigate the effects of Vitamin E and Schizochytrium sp. on the spermatophore regeneration in Penaeus monodon,we designed four different contents of Vitamin E and Schizochytrium sp. in the basal diet(control group; V_E 200; 1% Schizochytrium sp.; V_E 200+1% Schizochytrium sp.) to feed mature male P.monodon which had been extruded spermatophore for 40 d. The results show that the percentage of viable spermatozoa added in 200 mg·kg~(-1) Vitamin E diet group was significantly higher than that in the control group(P<0.05). The sperm quantity of single added in 1% Schizochytrium sp. diet group was not significantly different with control group(P>0.05). The total number of spermatozoa fed with 200 mg·kg~(-1) of Vitamin E and 1% Schizochytrium sp. was significantly higher than that of the control group(P<0.05). According to the spermatophore quality, sperm quantity and living sperm percentage, adding 200 mg·kg~(-1) of Vitamin E and 1% Schizochytrium sp. in feed can promote the spermatophore regeneration in the male P.monodon and improve the sperm quantity effectively.
引文
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