【摘要】 以鲜活饵料双齿围沙蚕(Perinereis aibuhitensis)、赤子爱胜蚓(Eisenia foetida)和人工配合饵料投喂凡纳滨对虾(Litopenaeus vannamei),并测定各种饵料对其生长和免疫指标的影响。结果表明,沙蚕和蚯蚓单独投喂或与人工配合饵料配合投喂都可显著提高凡纳滨对虾的生长速率,但用沙蚕单独投喂的对虾成活率较低。蚯蚓与人工配合饵料配合投喂可显著提高对虾血清中抗菌活力、溶菌活力、酚氧化酶活力和血细胞数量;蚯蚓单独投喂可显著提高血清中抗菌活力、酚氧化酶活力和血细胞数量,对血清中溶菌活力作用不明显。沙蚕与人工配合饵料配合投喂可显著提高对虾血清中抗菌和溶菌活力,但对血清中酚氧化酶活力和血细胞数量变化作用不明显;单独投喂沙蚕对所测各项免疫指标影响均不显著。研究结果证实:利用蚯蚓和沙蚕可显著提高对虾的生长速率,但蚯蚓的饵料效果优于沙蚕。[中国水产科学,2006,13(4):561-565]更多还原

【Abstract】 The effect of different diets on growth and immune parameters of Litopenaeus vannamei has been studied in this paper.Shrimps were fed each of five diets: earthworm,lobworm,formulated diet,formulated diet mixed with earthworm or lobworm.The result as follows: Comparing with formulated diet,earthworm,lobworm and formulated diet mixed with earthworm or lobworm significantly improved the growth of shrimp,while the survival rate for shrimps only fed lobworm was lower than those of other groups.The formulated diet mixed with earthworm appeared to have a positive effect on total hemocyte count and the activities of antibacterial,bacteriolytic and phenoloxidase in the haemolymph.Similarly,a positive effect was noticed on total hemocyte count and the activities of antibacterial and phenoloxidase when only earthworm was fed,but not significant on the activity of bacteriolytic.The shrimps fed formulated diet mixed with lobworm improved the activities of antibacterial and bacteriolytic,but not the total hemocyte count and the activity of phenoloxidase.When shrimps were only fed by lobworm,no significant effects were observed.According to the result,we can conclude that the earthworm and lobworm have a positive effect on the growth of shrimp,and the effect of earthworm is better than that of lobworm.更多还原