Abstract
The aim of this study was to define the connection between the leptin (LEP) gene T3469C polymorphism and its potential association with production traits in improved hybrid pigs. The study included data from 397 gilts and barrows from 2 different sample. The polymorphism was identified by using the polymerase chain reaction-restriction fragment-length polymorphism (PCR–RFLP) method with HinfI restriction enzyme. Two alleles of LEP gene were identified: T (0.93) an C (0.07). The analysis of values of production traits, depending on LEP genotype did not reveal significant (P≤0.05) differences. In the examination the loin diameter (between the 2nd and 3rd ribs), the live weight at slaughter and the averege daily gain during fattening were higher at pigs with C allele than pigs with TT genotipe. Accordingt to our data the effect of C allele was favourable in this population, because these animals had bigger bodyweight without valuable change of lean meat percent.
Highlights
The aim of this study was to define the connection between the leptin
The polymorphism was identified by using the polymerase chain reaction-restriction fragment-length polymorphism
Accordingt to our data the effect of C allele was favourable in this population
Summary
The aim of this study was to define the connection between the leptin (LEP) gene T3469C polymorphism and its potential association with production traits in improved hybrid pigs. The study included data from 397 gilts and barrows from 2 different sample. Two alleles of LEP gene were identified: T (0.93) an C (0.07). The analysis of values of production traits, depending on LEP genotype did not reveal significant (P≤0.05) differences. Az utóbbi években a genetikai markerek segítségével végzett szelekciónak egyre jelentősebb a szerepe az állattenyésztésben, mivel használatával nagyobb szelekciós előrehaladás érhető el (Tenke és Babinszky, 2012). A leptin hormon génjét 1994-ben Zhang és munkatársai írták le ún. 1997-ben Stratil és munkatársai írták le a leptin gén 3. A korábbi vizsgálatok arra engednek következtetni, hogy a polimorfizmus hatással van a vágáskori súlyra, a napi gyarapodásra és a takarmánykonverzióra (Jiang és Gibson, 1999; Kennes et al, 2001; Bauer et al, 2006; Oliveira Peixoto et al, 2006; Villalba et al, 2009)
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