Research Article
Agata Klenowicz1, Piotr Sablik 1, Ewa Januś 2 , Andrzej Dybus 3
1Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology Szczecin, Janickiego 33, 71-270 Szczecin, Poland
2University of Life Sciences in Lublin, Department of Cattle Breeding and Genetic Resources Conservation, Laboratory for Organic Production of Food of Animal Origin, Akademicka 13, 20-950 Lublin, Poland
3Department of Genetics, West Pomeranian University of Technology, Szczecin, Aleja Piastów 45, 70-311 Szczecin, Poland
Abstract. The aim of this study was to analyse the relationship between the leptin gene and the productivity of Polish HF cattle as well as their functional traits (health). The study was conducted on a sample chosen from one of the West-Pomeranian farms. The lowest percentage of pathogenic disease (mastitis, endometritis) was recorded in the cattle with CT genotype for leptin, whilst cows with TT genotype had fewest metabolic diseases. The study found that the TT cattle were significantly more efficient (P ≤ 0.01; P ≤ 0.05) than other groups in value and energy corrected milk (VCM and ECM) as well as in milk fat and protein yields in their first lactation.
Keywords: leptin, dairy cattle, productivity and health traits, diseases, Holstein-Fresian cattle
Received: 23 Dec 2023
Accepted: 26 Apr 2024
Published online: 21 Sep 2024
Accesses: 22
Klenowicz, A., Sablik, P., Januś, E., Dybus, A., (2023). Relationship bewteen the leptin gene polymorphism and the productivity and health traits in Holstein-Fresian cattle. Acta Sci. Pol. Zootechnica, 22(4), in press.