Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2010
Volume 13
Issue 3
Topic:
Animal Husbandry
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Rybarczyk A. , Kmieś M. , Szaruga R. , Polasik D. , Terman A. , Natalczyk-Szymkowska W. 2010. LEPTIN GENE (LEP) POLYMORPHISM IN PIC HYBRID FATTENERS FREE FROM STRESS SUSCEPTIBILITY GENE (RYR1T), EJPAU 13(3), #07.
Available Online: http://www.ejpau.media.pl/volume13/issue3/abs-07.html

LEPTIN GENE (LEP) POLYMORPHISM IN PIC HYBRID FATTENERS FREE FROM STRESS SUSCEPTIBILITY GENE (RYR1T)

Artur Rybarczyk1, Marek Kmieś2, Roman Szaruga1, Daniel Polasik3, Arkadiusz Terman3, Wanda Natalczyk-Szymkowska1
1 Department of Evaluation Livestock Products, Westpomeranian University of Technology, Szczecin, Poland
2 Department of Genetics and Animal Breeding, Westpomeranian University of Technology, Szczecin, Poland
3 Department of Genetics and Animal Breeding, West Pomeranian University of Technology in Szczecin, Szczecin, Poland

 

ABSTRACT


The studies were carried out on 126 hybrid porkers from crossing sows Camborough22 and PIC337 boars. The taken up study aimed at determining the T3469C and G2728A polymorphism at the leptin gene (LEP) as well as establishing an association with the quality of carcass and meat in PIC hybrid fatteners that are free from stress susceptibility gene (RYR1T). Basing on the carried out study, a higher frequency of allele G (0.976) and a lower one of allele A (0.024) at locus G2728A was showed. Genotype distribution was as follows: GG (0.960), GA (0.032), and AA (0.008). On the other hand, occurrence of different alleles at locus T3469C was not found. All tested pigs were characterised by genotype TT. Fatteners with genotypes GG G2728A and TT T3469C were characterised mean percent carcass meatiness amounted almost 57%, out of which 73.5% were classified into class S and E of the EUROP system. The
analysis quality of their meat showed since 85.1% carcasses of normal meat, while participation of the PSE type meat amounted to 4.8% only, keeping at the same time optimum intramuscular fat content. Also, a more favourable slaughter value of gilt carcasses in relation to barrows was confirmed, with similar carcass weight, meat quality and its basic chemical composition.

Key words: pigs, LEP and RYR1 gene, carcass and meat quality.


Artur Rybarczyk
Department of Evaluation Livestock Products,
Westpomeranian University of Technology, Szczecin, Poland
Doktora Judyma 24, 71-466 Szczecin, Poland
phone: 048 091 449 67 08
email: Artur.Rybarczyk@zut.edu.pl

Marek Kmieś
Department of Genetics and Animal Breeding,
Westpomeranian University of Technology, Szczecin, Poland
Doktora Judyma 6, 71-466 Szczecin, Poland
phone: 048 091 449 67 80
email: Marek.Kmiec@zut.edu.pl

Roman Szaruga
Department of Evaluation Livestock Products,
Westpomeranian University of Technology, Szczecin, Poland
Doktora Judyma 24, 71-466 Szczecin, Poland
phone: 048 091 449 67 08

Daniel Polasik
Department of Genetics and Animal Breeding, West Pomeranian University of Technology in Szczecin, Szczecin, Poland
Doktora Judyma 6, 71-466 Szczecin, Poland
Phone: +48 91 449 67 80
email: daniel.polasik@zut.edu.pl

Arkadiusz Terman
Department of Genetics and Animal Breeding, West Pomeranian University of Technology in Szczecin, Szczecin, Poland
Doktora Judyma 6, 71-466 Szczecin, Poland
Phone: +48 91 449 67 83
email: Arkadiusz.Terman@zut.edu.pl

Wanda Natalczyk-Szymkowska
Department of Evaluation Livestock Products,
Westpomeranian University of Technology, Szczecin, Poland
Doktora Judyma 24, 71-466 Szczecin, Poland
phone: 048 091 449 67 08
email: Wanda.Natalczyk-Szymkowska@zut.edu.pl

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.