Determining the Relationship Among Cattle Genotype, Hair Coat Score, and Productivity Through the Investigation of Single Nucleotide Polymorphisms Within Prolactin, Dopamine Receptor D2, and Melatonin Receptor 1A

This study identified several genetic variants associated with cattle hair coat length, which may help breed more heat-tolerant animals by facilitating efficient heat loss.

In this study, researchers identified genetic variants in the PCCA and PRLR genes that are significantly associated with hair coat length in Brangus heifers, potentially contributing to more thermotolerant cattle.

In this study, researchers examined the genetic factors impacting cortisol and DHEA concentrations in the hair of healthy pigs; they found that cortisol levels were heritable and genetically correlated with behavioral stress responses, suggesting these hormones could potentially serve as indicators for selecting disease-resilient pigs.

This study found that prolactin gene polymorphism in Changthangi goats showed no significant association with Cashmere quality traits, indicating the need for further research with larger sample sizes.

This study observed that beef cattle with certain prolactin receptor gene mutations, known as slick mutations, demonstrated improved post-weaning growth and temperature regulation in a hot, humid climate compared to other genotypes, suggesting genotype influences growth efficiency and heat tolerance.