Av. Ciudad Universitaria 3000, C.P., Coyoacán, 04510 Ciudad de México, Mexico; Posgrado en Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, C.P., Coyoacán, 04510 Ciudad de México, Mexico.
Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Prolongación Avenida Niños Héroes S/N, Puerto Morelos, Quintana Roo 77580, Mexico.
Anim Reprod Sci. 2022 Jul;242:107001. doi: 10.1016/j.anireprosci.2022.107001. Epub 2022 May 17.
The aim of this study was to determine the effect of completely or partially replacing fresh foods from the broodstock diet with an experimental diet. During a 40-day period, three dietary treatments were tested on Litopeaneus vannamei broodstock. As part of the first dietary treatment, denoted as "FF", broodstock shrimp were fed only fresh frozen food (squid, polychaete, mussel and Artemia biomass). The second treatment denoted as "ED" was 100% an artificial experimental diet. The third treatment, denoted as MD, comprised both the experimental diet and the fresh-frozen food (only squid and mussel were used). In terms of fertile spawns, females with ≥ 1 spawn, females with ≥ 2 spawn, and fecundity, the MD treatment did not differ significantly from the FF treatment. Fecundity was lowest among females receiving the ED treatment. MD treatment demonstrated equivalent fertility in females, and sperm rate in males to that of the FF treatment. The highest normal sperm rate was found in the ED and MD treatments. As a result, a combination of fresh food and the experimental diet resulted in a more balanced reproduction performance.
本研究旨在确定用实验饲料完全或部分替代亲虾饲料中的新鲜食物对凡纳滨对虾亲虾的影响。在 40 天的时间里，对三种饲料处理方法进行了测试。作为第一个饲料处理的一部分，称为“FF”，亲虾只投喂新鲜冷冻食物（鱿鱼、多毛类、贻贝和卤虫生物量）。第二个处理称为“ED”，是 100%的人工实验饲料。第三个处理，称为 MD，由实验饲料和新鲜冷冻食物组成（仅使用鱿鱼和贻贝）。在可育卵的数量、产卵次数≥1 的雌虾数量、产卵次数≥2 的雌虾数量和产卵数量方面，MD 处理与 FF 处理没有显著差异。接受 ED 处理的雌虾产卵数量最低。MD 处理在雌虾的生育力和雄虾的精子活力方面与 FF 处理相当。在 ED 和 MD 处理中发现了最高的正常精子活力。因此，新鲜食物和实验饲料的组合使繁殖性能更均衡。
