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The study was conducted on Holstein calves to find the association between MOGAT1, MOGAT3/g.A229G, and MOGAT3/g.G1627A and growth traits. Association analysis showed a statistically significant difference between the MOGAT1 and body weight, body length, and chest circumference, MOGAT3/g.A229G with ADG and withers height, and MOGAT3/g.G1627A with body weight and body length (p < 0.05). The results confirmed that the MOGAT1, MOGAT3/g.A229G, and MOGAT3/g.G1627A locus are strong candidate genes.

This report provides valuable information about an interesting candidate gene underlying new genetic markers, which may be used for marker-assisted selection to improve quantity and quality of wool produced from Egyptian sheep. A part of the KAP22-1 gene was amplified, sequenced and genotyped in an Egyptian sheep population with important wool traits available for the animals for further association analysis.

HinfI polymorphisms of Pit-1 and CSN3 genes were identified in DNA isolated from blood samples of 100 Holstein calves used in the study, using the PCR-RFLP method. According to the Hardy–Weinberg genetic equilibrium test, it was observed that the distribution of genotype frequencies of HinfI polymorphisms of Pit-1 genes in the studied population was in equilibrium, but not in equilibrium in terms of CSN3 gene location.

To investigate the effects of miR-499-5p on muscle metabolism in broiler chickens, we assigned 16 broiler chicks to the control group and treatment group and then monitored the effects using metabolomics. A total of 76 differential metabolites were identified, and these metabolites were primarily involved with the regulation of lipid and carbohydrate metabolism.

We report one set of the identified molecular markers linked to antler quality in red deer. These markers can be used in the selection procedure to increase the frequency of stags that develop high-quality antlers with elevated probability. Another set of markers has also been introduced that is capable of effective paternity testing.

Weaning is a stressful event and is a critical period that affects probably the reproductive development of lambs. The objective of the study was to evaluate the effect of the weaning method on sexual behavior and semen quality of 3-month-old lambs. It was found that the lambs that were completely separated from their mothers presented lower levels of stress and developed better, but they were not better in terms of sexual behavior and seminal quality.

This study investigated the coding sequence (CDS) of the GnRH gene in the ovary of Duolang sheep and the expression of GnRH mRNA in different tissues at the onset of puberty and analyzed the effect of GnRH agonists on ovarian granulosa cells (GCs) of Duolang sheep. The role of GnRH in sheep ovaries at the onset of puberty was elucidated.

Special nature reserves are created in Europe to replicate its prehistoric past, i.e. to rewild the area, by populating it with the kinds of animals (e.g. tarpans) that lived there many thousands of years ago. The Polish Konik is the only primitive horse breed originating directly from wild tarpans. Researchers have aimed at understanding the biology of Polish Konik horses for years. Our study showed that different factors such as season, habitat, and time of the day affect their mobility.

Factors such as genotype, sex, type of birth, maternal age, weaning age and birth weight must be considered in evaluation of pre- and post-weaning growth traits. Myostatin mutation was introduced to native Turkish breed Ramlıç by marker-assisted introgression (MAI). The mutation has a positive effect on ultrasonographic carcass traits in crosses. Lambs with myostatin tended to have deeper longissimus muscle and good carcass characteristics, and they may be recommendable for Turkish farmers.