The Degree of Sex Reversal in Muscovy Ducks (Cairina moschata domestica) Induced by an Aromatase Inhibitor
文献类型： 外文期刊
作者： Hu, Yu-Qiong 1 ; Bai, Ding-Ping 1 ; Chen, Yue 1 ; Lu, Zhi-Xue 1 ; Zheng, Heng-Bo 1 ; Xu, Fa-Qiong 1 ; Wu, Yan 2 ; Zhu, Mi 1 ;
作者机构： 1.Fujian Agr & Forestry Univ, Coll Anim Sci, Fuzhou 350002, Fujian, Peoples R China
2.Key Lab Anim Embryo Engn & Mol Breeding Hubei Pro, Wuhan, Hubei, Peoples R China
3.Zhejiang Acad Agr Sci, Inst Anim Husb & Vet Sci, Hangzhou, Zhejiang, Peoples R China
4.Liaocheng Univ, Agr Coll, Liaocheng, Shandong, Peoples R China
关键词： Sex reversal; Gonad; Growth; Hormones; Letrozole; Muscovy ducks
期刊名称：SEXUAL DEVELOPMENT （ 影响因子：1.824； 五年影响因子：2.755 ）
ISSN： 1661-5425
年卷期： 2019 年 13 卷 3 期
页码：
收录情况： SCI
摘要： Under the same feeding conditions, the growth and development of male Muscovy ducks is significantly greater than that of females. Thus, controlling their sex expression can have economic benefits. However, reports on the degree of sex reversal in Muscovy ducks are scarce. In this study, we obtained sex-reversed Muscovy ducks by injecting letrozole before sex differentiation. We analyzed the degree of sex reversal in Muscovy ducks in terms of hormone levels, gonadal tissue development, and growth and found that the estradiol levels of AI-females (letrozole-induced female-to-male sex reversal) were not significantly different from those of normal males (p > 0.05), but the testosterone levels were significantly lower than those in normal males (p < 0.05). AI-female gonad tissue had changed, and the right gonad presented ovotestis tissue. The growth and development of AI-females was significantly less than that of normal males (p < 0.05) but was not significantly different from that of normal females (p > 0.05). Letrozole can induce female Muscovy ducks to convert into males, but the reversal cannot be completed. Thus, further studies are needed to elucidate how to entirely attain the change.
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