Chu Meng, Liu Yangquan, Si Yu, Yu Hang, Ye Yaqiong, Zhao Haiquan, Zhang Hui
Department of Veterinary Medicine, College of Life Science and Engineering, Foshan University, Foshan 528231, China.
Department of Veterinary Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, China.
J Microsc Ultrastruct. 2021 Feb 9;10(1):20-22. doi: 10.4103/JMAU.JMAU_50_20. eCollection 2022 Jan-Mar.
The Yugan blackbone fowl (YBF) is a special poultry with hyperpigmentation in various organs, including feather. However, the mechanism of hyperpigmentation is limited, and the melanic information of other organs except skin is rare.
In this study, we attempt to get an insight of the mechanism of melanogenesis of birds.
The mesencephalon of YBF was observed by light microscopy with hematoxylineosin and tyrosine hydroxylase (TH) immunohistochemistry.
The TH immunopositive cells were found in the mesencephalon. Moreover, the melanin was also observed in the connective tissue of the mesencephalon.
Our results confirmed the existence of melanin andTH immunopositive cells in the mesencephalon of YBF. These results provide a reference for further study on the mechanism of melanogenesis/hyperpigmentation in birds.
余干黑羽乌骨鸡（YBF）是一种特殊的家禽，其包括羽毛在内的各个器官都有色素沉着。然而，色素沉着的机制尚不清楚，除皮肤外其他器官的黑色素信息也很少见。
在本研究中，我们试图深入了解鸟类黑色素生成的机制。
采用苏木精-伊红染色和酪氨酸羟化酶（TH）免疫组织化学方法，用光镜观察余干黑羽乌骨鸡的中脑。
在中脑中发现了TH免疫阳性细胞。此外，在中脑的结缔组织中也观察到了黑色素。
我们的结果证实了余干黑羽乌骨鸡中脑存在黑色素和TH免疫阳性细胞。这些结果为进一步研究鸟类黑色素生成/色素沉着机制提供了参考。
