Effects of Short Photoperiod on Cashmere Growth, Hormone Concentrations and Hair Follicle Development-Related Gene Expression in Cashmere Goats

January 2023 in “ Journal of applied animal research ”

Junda Li, Guangjie Tian, Xingtao Wang, Hongyu Tang, Yuyang Liu, Hongran Guo, Chunxin Wang, Yulin Chen, Yuxin Yang

short photoperiod cashmere growth hormone concentrations hair follicle development Melatonin prolactin hormone receptors secondary hair follicles S:P ratio short-day photoperiod wool production

TLDR Short photoperiods improve cashmere growth and quality in goats by changing hormone levels and gene expression.

The research studied the impact of short photoperiod treatment on 20 Shanbei white cashmere goats, focusing on cashmere growth, hormone concentrations, and hair follicle development-related gene expression. The results showed that short-day photoperiod treatment led to earlier and faster cashmere growth, increased serum Melatonin, decreased serum prolactin, and altered the expression of various hormone receptors and hair follicle development-related genes. This treatment also increased the density of secondary hair follicles and the S:P ratio, essential for wool production. The study concluded that short photoperiod treatment can enhance cashmere growth and quality by affecting hormone levels and gene expression.

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