Wilson S C
Br Poult Sci. 1978 Sep;19(5):643-50. doi: 10.1080/00071667808416524.
The concentration of plasma luteinising hormone (LH) in samples taken at frequent intervals from 6 weeks of age until the onset of lay, and also at 9 months after the onset of lay, was significantly greater in hens with a high rate of egg production than in comparatively poor layers. 2. The difference was most marked during the period 7 to 9 weeks of age when there was a transient increase in plasma LH concentration remained stable in comparatively poor layers. 3. The concentration of LH in plasma, particularly at 7 to 9 weeks of age, before gonadal growth, or during the prepubertal peak of LH secretion, at about 2 to 4 weeks before the onset of lay, may be a useful criterion in the selection of laying strains.
从6周龄到产蛋开始期间每隔一段时间采集样本，以及在产蛋开始9个月后采集样本，高产蛋率母鸡血浆促黄体生成素（LH）的浓度显著高于相对产蛋量低的母鸡。2. 这种差异在7至9周龄期间最为明显，此时高产蛋率母鸡血浆LH浓度短暂升高，而相对产蛋量低的母鸡血浆LH浓度保持稳定。3. 血浆中LH的浓度，特别是在7至9周龄、性腺生长之前或产蛋开始前约2至4周LH分泌青春期前高峰期间，可能是选择产蛋品系的一个有用标准。
