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首页> 美国卫生研究院文献>Development Reproduction >Management of Sexual Maturation and Natural Spawning of Captive-Reared Yellowtail Kingfish Seriola lalandi in an Indoor Rearing Tank
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Management of Sexual Maturation and Natural Spawning of Captive-Reared Yellowtail Kingfish Seriola lalandi in an Indoor Rearing Tank

机译：圈养性成熟和自然繁殖的管理在室内饲养箱中饲养黄尾翠鸟（Seriola lalandi）

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摘要

This study describes results on sexual maturation and characteristics of natural spawned eggs to develop a method for the production of stable, healthy fertilized eggs from captive-reared yellowtail kingfish, Seriola lalandi. A total of 59 yellowtail kingfish were captured off the coast of Jeju Island, after which the broodstock was cultured in indoor culture tank (100 m3) until they were 6.1–14.9 kg in body weight. As part of the rearing management for induced sex maturation, the intensity of illumination was maintained at 130 lux. The photoperiod (light/dark; L/D) was set to a 12 L/12 D from October 2013 to January 2014, and 15 L/9 D from February 2014 to June 2014. Feeds comprised mainly EP (Extruded Pellets), with squid cuttlefish added for improvement of egg quality, and was given from April to June 2014. The first spawning of yellowtail kingfish occurred in May 3, 2014, at a water temperature of 17.0°C. Spawning continued until June 12, 2014, with the water temperature set at 20.5°C. Time of spawning was 26 times at this period. The total number of eggs that spawned during the spawning period was 4,449×103. The buoyant rate of spawning eggs and fertilization rate of buoyant eggs during the spawned period were 76.1% and 100%, respectively. The diameters of the egg and oil globule were 1.388 ± 0.041 mm and 0.378 ± 0.029 mm, respectively, which was higher in early eggs than in those from late during the spawned period.
机译：这项研究描述了性成熟结果和天然产卵卵的特征，以开发一种从圈养饲养的黄尾yellow（Seriola lalandi）生产稳定，健康的受精卵的方法。在济州岛沿岸捕获了59条黄尾金鱼，然后将亲鱼放在室内养殖池（100 m 3 ）中养殖，直到体重达到6.1–14.9 kg。作为诱导性成熟的饲养管理的一部分，光照强度保持在130勒克斯。从2013年10月至2014年1月，光周期（明/暗； L / D）设置为12 L / 12 D，从2014年2月至2014年6月，设置为15 L / 9D。饲料主要包括EP（挤压粒料），乌贼墨鱼增加了鸡蛋的质量，并于2014年4月至2014年6月投产。.鱼的第一次产卵于2014年5月3日，水温为17.0°C。产卵持续到2014年6月12日，水温设定为20.5°C。在此期间产卵时间是26次。产卵期间产卵的总数为4,449×10 3 。产卵期的产卵浮力和受精卵的受精率分别为76.1％和100％。卵和油小球的直径分别为1.388±0.041 mm和0.378±0.029 mm，早期卵比产卵后期的卵高。

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