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首页> 外文期刊>Fisheries Science >Detection of prostaglandin E2 in polychaete Perinereis sp. and its effect on Penaeus monodon oocyte development in vitro
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Detection of prostaglandin E2 in polychaete Perinereis sp. and its effect on Penaeus monodon oocyte development in vitro

机译：多毛PerPerinereis sp。中前列腺素E 2 的检测。及其对斑节对虾卵母细胞体外发育的影响

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摘要

Prostaglandins are involved in the reproductive processes in a variety of animals, including crustaceans. It was found that polychaetes, the best maturation diet for shrimp broodstock, possessed the greatest variation of prostaglandin E2 (PGE2) when compared with other live feeds. The level of PGE2 varied according to sizes, feed intake, sources and type of polychaete. The matured and also larger sand polychaete Perinereis sp. contained higher PGE2 levels than younger and smaller sand polychaetes (18.16 ± 5.82 ng PGE2 mg−1 protein for polychaetes at an average length of 10 cm up to 160.8 ± 37.09 ng PGE2 mg−1 protein for polychaetes at an average length of 17 cm). The PGE2 levels in ovaries and haemolymph of female shrimp fluctuated with the developmental stage of the ovaries. The highest concentration of PGE2 in haemolymph was at stage 3 of ovarian development, whereas the highest concentration of PGE2 in shrimp ovaries was at stage 4. In vitro incubation of Penaeus monodon pre-vitellogenic oocytes with polychaete extract and synthetic PGE2 demonstrated that both PGE2s enhanced oocyte development, especially during late development and ovulation. The putative role of PGE2 from polychaetes or the presence of PGE2 in polychaetes may be a factor in their role as a dietary constituent required for shrimp oocyte development.
机译：前列腺素参与包括甲壳类在内的多种动物的生殖过程。结果发现，与虾类活体饲料相比，多壳类是虾亲鱼的最佳成熟饲料，其前列腺素E 2 （PGE 2 ）的变化最大。 PGE 2 的水平根据大小，采食量，多糖的来源和类型而变化。成熟且较大的沙多毛cha Perinereis sp。含有比年轻和较小的沙多毛cha更高的PGE 2 水平（多毛cha的PGE 2 mg -1 蛋白质为18.16±5.82 ng对于多毛cha来说，最大10 cm可达160.8±37.09 ng PGE 2 mg -1 蛋白，平均长度为17 cm）。雌性虾卵巢和淋巴中的PGE 2 水平随卵巢的发育阶段而波动。对虾淋巴液中PGE 2 的最高浓度在卵巢发育的第3阶段，而虾卵巢中PGE 2 的最高浓度在第4阶段。具有多毛提取物和合成的PGE 2 的斑节对卵前卵母细胞的研究表明，PGE 2 均可增强卵母细胞的发育，特别是在晚期发育和排卵期。来自多毛poly的PGE 2 的推定作用或多毛of中PGE 2 的存在可能是其作为虾卵母细胞发育所需的饮食成分的一个因素。

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