The genetic structure of breeds and populations of pigs by H-FABP gene

• Published in: Зоотехническая наука Беларуси (Belarus). Zootechnical Science of Belarus Vol. 41
• Main Author: Kovalchuk, M.A.,The National Academy of Sciences, Minsk (Belarus). Institute of Animal Production, Zhodino
• Format: Publication
• Language: Russian
• Published: 2006
• Subjects: BELARUS; BREEDS (ANIMALS); CALIDAD; CARNE; CERDO; CRITERE DE SELECTION; CRITERIOS DE SELECCION; GENOTIPOS; GENOTYPE; GENOTYPES; http://www.fao.org/aos/agrovoc#c_1078; http://www.fao.org/aos/agrovoc#c_1081; http://www.fao.org/aos/agrovoc#c_24423; http://www.fao.org/aos/agrovoc#c_3225; http://www.fao.org/aos/agrovoc#c_33237; http://www.fao.org/aos/agrovoc#c_4669; http://www.fao.org/aos/agrovoc#c_6400; http://www.fao.org/aos/agrovoc#c_7555; INDEX DE SELECTION; INDICE DE SELECCION; MEAT; PORCIN; QUALITE; QUALITY; RACE (ANIMAL); RAZAS (ANIMALES); SELECTION CRITERIA; SELECTION INDEX; SWINE; VIANDE

The major selection attributes of pigs are meat efficiency and quality. At production of lenten pork, a high daily average gain and low expenses of forage such parameters, as aroma, juiciness and tenderness of meat have practically disappeared. One of the reasons of meat deterioration is sharp decrease in contents in it of intramuscular fat. As a marker of the contents of intramuscular fat the gene connecting fat acids (H-FABP) which is localized on 6-th chromosome (SSC6) is considered and characterized by three types allelic polymorphism: A, a, D, d, H, h. Genetic polymorphism of gene H-FABP at various breeds, populations and age groups of the pigs planted in Belarus has been investigated. Obtained data testify about significant frequencies variability of occurrence of alleles of gene Н-РАВР on allelic systems H and D at Belarus Meat, Large White, Belarus Black-Motley, Landaras, Dyurok breeds in different populations of pigs and in depending on age groups. Probably, it is connected with a various direction of selection and intensity of selection on increase of meat quantity, and accordingly, reduction of fat thickness. It is possible to assume, that meat direction animals have advantage of occurrence of genotypes Н-FАВРhh and Н-FАВРdd to what high concentration of allele Н-FАВРh and Н-FАВРd in researched populations of pigs