Riahi Elham, Fathipour Yaghoub, Talebi Ali Asghar, Mehrabadi Mohammad
Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, P.O. Box 14115-336, Tehran, Iran.
J Econ Entomol. 2017 Aug 1;110(4):1525-1532. doi: 10.1093/jee/tox172.
Commercial production of Amblyseius swirskii Athias-Henriot based on storage mites needs both space and labor to maintain large cultures of these prey, and also may lead to health problems for workers. Therefore, the accessibility of a suitable artificial diet could eliminate the mentioned problems; however, the artificial diets must support the persistent production of high quality progeny. This study endeavored to find a more easily available and cheaper nutrient that may further reduce the cost of diet production for A. swirskii. The predator's performance was determined when it was fed on a basic artificial diet (AD1) composed of honey, sucrose, tryptone, yeast extract, and hen egg yolk, and on eight other artificial diets consisting of 80% AD1 enriched with different nutrients including maize pollen (AD2), hemolymph of Plusia gamma L. (AD3), Ephestia eggs (AD4), Artemis cysts (AD5), Ephestia last-instar larvae (AD6), multivitamin syrup (AD7), bovine serum albumin (AD8), and bull sperm (AD9). The lowest development time was on AD2. The highest value of fecundity and oviposition period were observed on AD5, followed by AD2 and AD4. The intrinsic rate of increase (r) and the finite rate of increase (λ) reached the maximal value on AD5. Feeding on AD2 and AD5 resulted in highest value of R0 (net reproductive rate). Our results indicated that Artemia cysts and maize pollen had better potential to be used as nutrient in artificial diet for mass production of A. swirskii. Overall, it seems that AD2 is the most cost effective than others.
基于储存螨类的斯氏钝绥螨商业化生产需要空间和劳动力来维持这些猎物的大量培养，并且可能会给工人带来健康问题。因此，合适的人工饲料的可用性可以消除上述问题；然而，人工饲料必须支持持续生产高质量的后代。本研究致力于找到一种更容易获得且更便宜的营养物质，这可能会进一步降低斯氏钝绥螨饲料生产的成本。当以由蜂蜜、蔗糖、胰蛋白胨、酵母提取物和鸡蛋黄组成的基础人工饲料（AD1）以及由80%AD1添加不同营养物质组成的其他八种人工饲料喂养捕食者时，测定了捕食者的性能，这些营养物质包括玉米花粉（AD2）、粉纹夜蛾血淋巴（AD3）、地中海粉螟卵（AD4）、卤虫卵（AD5）、地中海粉螟末龄幼虫（AD6）、多种维生素糖浆（AD7）、牛血清白蛋白（AD8）和公牛精子（AD9）。发育时间最短的是AD2。在AD5上观察到产卵量和产卵期的最高值，其次是AD2和AD4。内禀增长率（r）和周限增长率（λ）在AD5上达到最大值。以AD2和AD5为食导致R0（净繁殖率）的最高值。我们的结果表明，卤虫卵和玉米花粉在用作斯氏钝绥螨大规模生产人工饲料中的营养物质方面具有更好的潜力。总体而言，AD2似乎比其他饲料最具成本效益。
