Wydanie 334(42)2 2017

Stały URI dla kolekcji

https://oa.zut.edu.pl/handle/20.500.12539/704

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Przeglądaj Wydanie 334(42)2 2017 wg Autor "Department of Genetics and Animal Breeding, West Pomeranian University of Technology, Szczecin"

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  • Miniatura
    PozycjaOpen Access
    Influence of glycolysis process on the formation of meat quality parameters
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017) Woźniak, Katarzyna; Korpal, Agnieszka; Terman, Arkadiusz; Department of Genetics and Animal Breeding, West Pomeranian University of Technology, Szczecin; Department of Genetics and Animal Breeding, West Pomeranian University of Technology, Szczecin; Department of Genetics and Animal Breeding, West Pomeranian University of Technology, Szczecin
    Development of technologies for pork production has to take into account the changing tastes of consumers, who are now attach great importance to the quality of raw material. The quality of meat is not easy to define, because it is characterized by a number of physicochemical and sensory parameters. A feature having a positive effect on these parameters is the content of intramuscular fat (IMF). The content of IMF influences on glucose metabolism, and thus is inextricably linked to the glycolytic pathway. The first step of glycolysis is catalyzed by the enzyme hexokinase that participates in the irreversible glucose phosphorylation reaction. One of the hexokinase isoforms occurring in skeletal muscles and muscle tissue is hexokinase 2 (HK2). Due to the role of HK2 as a leading glycolytic enzyme in insulin-sensitive tissues, polymorphisms of the gene encoding this protein can affect its function. Therefore, the gene HK2 has been selected as a candidate gene for pork quality characteristics.
  • Miniatura
    PozycjaOpen Access
    The polymorphism C9681T in the prolactin receptor gene and functional traits of dairy cattle
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017) Kowalewska-Łuczak, Inga; Czerniawska-Piątkowska, Ewa; Department of Genetics and Animal Breeding, West Pomeranian University of Technology, Szczecin; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin
    The study analyzed the polymorphism of single nucleotide substitution C9681T (A536V) type, located in exon 10 of prolactin receptor gene. The study was conducted in a herd of cattle of Polish Holstein-Friesian breed of black and white variety. Identification of genotypes of individuals was performed using PCR-RFLP. The study stated the following frequency of C9681T polymorphism alleles: C-0.81 and T- 0.19. TT genotype was not identified in the analysis. Statistical analysis showed that the CC genotype cows were characterized by higher milk yield as compared with cows with the heterozygous genotype, and the latter were characterized by a longer calving interval. The results were not confirmed statistically.