光照影响绿尾虹雉繁殖效果初报

Preliminary Report on the Effects of Artificial Illumination on Reproduction of Lophophorus lhuysii

为探讨繁殖期增加光照时间改善绿尾虹雉Lophophorus lhuysii繁殖性能的可行性,于2016年2月26日—5月26日进行了人工补充光照试验。选择体质量相近的绿尾虹雉成体8只(4♂、4♀),随机分成1个对照组和1个试验组,每组4只(2♂、2♀),每组2个重复,每个重复2只(1♂、1♀)。对照组为自然光照,试验组为自然光照结合人工补充光照达到每天16 h(16L∶8D)的光照时间。结果表明:试验组雌鸟血液雌二醇、雄鸟血液睾酮极显著高于对照组(P<0.01);试验组血液黄体生成素、垂体泌乳素显著高于对照组(P<0.05)。试验组雄鸟的求偶行为较对照组出现更早,频率更高;试验组开产期比对照组提前了26 d,产卵期延长了2 d,受精率提高了80%,平均卵质量增加了3.0 g,产卵数增加了1枚。在绿尾虹雉季节性产卵习性的基础上,本地日照环境下利用自然光照结合人工补充光照达到每天16 h(16L∶8D)的光照时间,可以使绿尾虹雉产卵早、产卵期延长、卵质量增加、受精率提高。

This study investigated the possibility of increasing illumination time to improve the reproductive performance of the Chinese monals （Lophophorus lhuysii） during the breeding season. Artificial supplementary lighting tests were con- ducted during February 26 to May 26, 2016. A total of 8 adult L. lhuysii （4 ♂ , 4 ♀ ） with the similar mass and size were chosen and randomly divided into an experimental group （2 ♂ , 2 ♀ ） and a control group （2 ♂, 2 ♀ ）. Natural lighting was used in the control group, and in the experimental group, the natural lighting and artificial supplementary lighting were combined and the illumination time was extended to 16 h （16L：SD） per day. The results showed that the blood estradiol of female L. lhuysii and the blood testosterone of male in the experimental group were extreme significantly higher than those in control group （P 〈 0. 01 ）. The blood luteinizing prime and prolactin in experimental group were significantly higher than those of control group （ P 〈 0. 05 ）. The blood follicle stimulating hormone of experimental group was higher than that of con- trol group, but the difference was not significant （P 〉 0. 05 ）. The courtship behavior of the males in experimental group ap- peared more early and frequently than that of control group. The first spawning date in experimental group was 26 d earlier than that of control group, the spawning period delayed 2 d, the fertility rate went up by 80%, the average egg mass in- creased 3.0 g, and the egg laying number increased 1. On the basis of L. lhuysii annual spawning, combined use of natural lighting and artificial supplementary lighting can promote L. lhuysii to lay eggs, increase the egg weight, and increase the fertility rate.