2020
DOI: 10.36871/vet.zoo.bio.202012014
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In search for polymorphic DNA markers to increase resistance and production level of hens

Abstract: In the article, the authors assess the prospect of using genetic polymorphisms to predict resistance to diseases and a possible enlarge in chicken production level. Using the PCR-RFLP method, we analyzed the SNP frequencies in the genes of myostatin (MSTN, or GDF-8), proopiomelanocortin (POMC), and dopamine receptor D2 (DRD2) in chickens of the pure lines of the Smena-8 broiler hybreed – B6, B7m / o (slow-feathering), B7b / o (fast-fledging) FSBI "Breeding and Genetic Center “Smena”. The relationship between t… Show more

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“…It is proved that the intestinal microbiota of birds performs numerous functions to maintain homeostasis and resistance. It is known that it takes part in the normal functioning of cardiovascular, endocrine, hematopoietic, nervous, and other systems (Kochish et al, 2020). At the same time, in order to obtain the healthiest birds possible, it is necessary to know their genetic potential and improve nutrition based on physiological features.…”
Section: Introductionmentioning
confidence: 99%
“…It is proved that the intestinal microbiota of birds performs numerous functions to maintain homeostasis and resistance. It is known that it takes part in the normal functioning of cardiovascular, endocrine, hematopoietic, nervous, and other systems (Kochish et al, 2020). At the same time, in order to obtain the healthiest birds possible, it is necessary to know their genetic potential and improve nutrition based on physiological features.…”
Section: Introductionmentioning
confidence: 99%
“…Вторая немаловажная проблема животноводства -неконтролируемое использование антибиотиков. Наряду с бактериостатическим и бактерицидным действием в отношении большинства грамположительных и грамотрицательных бактерий антибиотики обладают нежелательными побочными эффектами: угнетается микрофлора желудочно-кишечного тракта (ЖКТ), ослабляется иммунитет, патогенные микроорганизмы мутируют и вырабатывают устойчивость (11). Неконтролируемое применение антибактериальных препаратов может привести к переносу антибиотикорезистентности от животного к человеку (12), что послужило причиной запрета большинства из них в США и странах Западной Европы (13).…”
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