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卵化器温度对科拉特的性别差异的影响

Chanoknan Khamoun¹, Sajeera Kupittayanant², Pakanit Kupittayanant¹

¹School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, Thailand.

Journal of thermal biology

|October 1, 2024

概括

化器温度显著影响科拉特的性别差异化. 高温会导致性别逆转,而较低的温度会降低化率,影响家禽的发育.

科学领域:

禽畜科学禽畜科学禽畜科学
发展生物学发展生物学
遗传学是一个遗传学.

背景情况:

鸟类物种的性别决定是复杂的,可以受到环境因素的影响.
了解化温度在性别差异化中的作用对于家禽繁殖和生产至关重要.

研究的目的:

为了研究化器温度对科拉特的性别分化的影响.
为了确定化温度的变化是否会导致染色体和生殖腺性别之间的不匹配.

主要方法:

科拉特蛋接受了标准 (37.7°C),高 (38.0°C) 和低 (36.0°C) 的化器温度,在整个化期间或在关键时期 (3-6天) 应用.
在化时确定了W染色体,35天后进行了生殖结构的组织学检查.
一个完全随机的设计,每次实验300个蛋 (三组,每组5个20个蛋的复制品) 被使用.

主要成果:

在特定时期的高温 (38.0°C) 导致9.7%的W染色体个体的染色体和淋巴体性别不匹配,这些个体发展了丸.
在特定时期,较低的温度 (36.0°C) 导致19.4%的遗传男性发展卵巢而不是丸.
在整个化期内将化温度降低到36.0°C,与标准温度相比,化率显著降低 (P<0.05).

结论:

化器温度在科拉特的性别差异化中起着重要作用.
改变化温度可以诱导性别逆转,导致家禽在遗传性和表型性之间存在差异.
这项研究为肉提供了第一个证据,即温度可以影响性别差异化,这对鸟类生殖生物学有影响.

关键词:

化卵子的化时间科拉特肉 (Korat) 是一种肉.性差异化性别差异化温度温度是指温度.在W染色体中,W染色体是

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