In this study, we investigated the effect of the sheep FecB gene on reproductive and productive performance by molecular biology techniques. Our results showed that the most dominant genotypes associated with lambing performance were AA and CT, with the dominant haplotype combination being AACT. In terms of body performance, the dominant genotypes were AA and CC, with the dominant haplotype combination being AACC.

Our research tried new ideas and measured the milk production performance of cashmere goats and found that the nutritional indicators of milk of Liaoning cashmere goats were excellent, laying a theoretical foundation for the future development of breeding to cashmere goats. At the same time, it also provides theoretical support for producers and can screen individual genotypes based on the experimental results during seed selection, thereby improving production performance to a certain extent.

Cashmere is a natural fiber from cashmere goats. The textile has been favored by consumers due to typical features like lightness, softness, and comfort. In this study, we show that circRNA-0100 promotes the differentiation of secondary hair follicle stem cells into hair lineage via sequestering miR-153-3p to heighten the KLF5 expression. Our results provide significant information for artificially regulating the secondary hair follicle regeneration and cashmere growth in cashmere goats.