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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Antibiotic exposure to minimize microbial load in live feed Isochrysis galbana used for larval rearing of Indian pearl oyster Pinctada fucata
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Antibiotic exposure to minimize microbial load in live feed Isochrysis galbana used for larval rearing of Indian pearl oyster Pinctada fucata

机译：接触抗生素可最大程度地减少活饲料等渗线球菌的微生物含量，这些线虫用于印度珍珠贝幼虫Pinctada fucata的幼体饲养

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摘要

Pearl oyster larvae are reared in static water in dense numbers and fed with large amounts of unicellular algae. The combination of high larval densities, debris from dead larvae and high loads of organic matter stimulates the selection and growth ofopportunistic bacteria in larval tanks. High microbial load noted in the rearing water, tissue samples and in the micro algal feed, resulted in poor spat production of less than 3.0% in Pinctada fucata hatchery. In general, pathogenic microbes invade thehatcheries by three principal routes, viz. sea water, brood stock and algal food. Prophylactic antibiotic usage has been suggested to reduce bacterial load in live feed. Here, the exposure time and the minimum dose of chloramphenicol required to reducethe proliferation of bacteria in the mass culture of micro algae, Isochrysis galbana is reported.
机译：珍珠牡蛎幼虫在静态水中大量繁殖，并喂食大量单细胞藻类。高幼虫密度，死幼虫残骸和高有机物含量的结合刺激了幼虫池中机会细菌的选择和生长。饲养水，组织样品和微藻饲料中存在高微生物负荷，导致在Pinctada fucata孵化场中，不佳的鱼苗产量不足3.0％。通常，病原微生物通过三种主要途径入侵孵化场。海水，亲鱼和藻类食物。已建议预防性使用抗生素以减少活饲料中的细菌负荷。在此，报道了在微藻（Isochrysis galbana）的大规模培养中减少细菌繁殖所需的暴露时间和氯霉素的最小剂量。

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