The influence of prenatal environmental conditions on the weight of newborn domestic pigs
The weight of newborn piglets in domestic pigs depends on the maternal environment. Using an original algorithm based on the comparison of the coefficients of correlation between the half-nests (the same average genotype and the same conditions of the embryonic environment) and the twin sockets (the...
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| Format: | Article |
| Language: | English |
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Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders
2017-11-01
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| Series: | Вавиловский журнал генетики и селекции |
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| Online Access: | https://vavilov.elpub.ru/jour/article/view/1142 |
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| author | S. V. Nikitin S. P. Knyazev V. I. Ermolayev |
| author_facet | S. V. Nikitin S. P. Knyazev V. I. Ermolayev |
| author_sort | S. V. Nikitin |
| collection | DOAJ |
| description | The weight of newborn piglets in domestic pigs depends on the maternal environment. Using an original algorithm based on the comparison of the coefficients of correlation between the half-nests (the same average genotype and the same conditions of the embryonic environment) and the twin sockets (the same genotype, different conditions of the embryonic environment), it was possible to estimate the relative contribution of the various components to the weight of the newborn in the domestic pigs. Our investigation found that the relative contribution of environmental conditions during prenatal development into newborn weight variation is equal to 0.4717, the contribution of genotypic component is 0.4032; the contribution of interaction between environmental conditions and ambivalence of the “genotype–phenotype” relationships is 0.0846, indeterminacy of phenotypic realization of the littermate’s genotypes is 0.0405. Maternal resource plays the main role amongst factors forming the environmental conditions of prenatal development. The gene pool will remain unchanged in any number of generations, despite a change in the population parameters of the trait. In principle, it can be assumed that when a population reaches a certain level, when the mean value of the trait and the gene pool are optimal (the selection pressure vectors are mutually balanced), selection becomes less effective in transforming the average phenotype than changing environmental conditions. Obviously, therefore, livestock maintenance and feeding are paid as much attention as breeding, and breeds of farmed animals are zoned. |
| format | Article |
| id | doaj-art-ab18a6af23ad4aa68b9f4b0dd4b4b00b |
| institution | Kabale University |
| issn | 2500-3259 |
| language | English |
| publishDate | 2017-11-01 |
| publisher | Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders |
| record_format | Article |
| series | Вавиловский журнал генетики и селекции |
| spelling | doaj-art-ab18a6af23ad4aa68b9f4b0dd4b4b00b2025-02-01T09:58:04ZengSiberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and BreedersВавиловский журнал генетики и селекции2500-32592017-11-0121556957510.18699/VJ17.273649The influence of prenatal environmental conditions on the weight of newborn domestic pigsS. V. Nikitin0S. P. Knyazev1V. I. Ermolayev2Institute of Cytology and Genetics SB RASNovosibirsk State Agrarian UniversityInstitute of Cytology and Genetics SB RASThe weight of newborn piglets in domestic pigs depends on the maternal environment. Using an original algorithm based on the comparison of the coefficients of correlation between the half-nests (the same average genotype and the same conditions of the embryonic environment) and the twin sockets (the same genotype, different conditions of the embryonic environment), it was possible to estimate the relative contribution of the various components to the weight of the newborn in the domestic pigs. Our investigation found that the relative contribution of environmental conditions during prenatal development into newborn weight variation is equal to 0.4717, the contribution of genotypic component is 0.4032; the contribution of interaction between environmental conditions and ambivalence of the “genotype–phenotype” relationships is 0.0846, indeterminacy of phenotypic realization of the littermate’s genotypes is 0.0405. Maternal resource plays the main role amongst factors forming the environmental conditions of prenatal development. The gene pool will remain unchanged in any number of generations, despite a change in the population parameters of the trait. In principle, it can be assumed that when a population reaches a certain level, when the mean value of the trait and the gene pool are optimal (the selection pressure vectors are mutually balanced), selection becomes less effective in transforming the average phenotype than changing environmental conditions. Obviously, therefore, livestock maintenance and feeding are paid as much attention as breeding, and breeds of farmed animals are zoned.https://vavilov.elpub.ru/jour/article/view/1142environment conditionsprenathal developmentnewborn weighdomestic pigscoefficient of repeatabilityforecast’s successfullness |
| spellingShingle | S. V. Nikitin S. P. Knyazev V. I. Ermolayev The influence of prenatal environmental conditions on the weight of newborn domestic pigs Вавиловский журнал генетики и селекции environment conditions prenathal development newborn weigh domestic pigs coefficient of repeatability forecast’s successfullness |
| title | The influence of prenatal environmental conditions on the weight of newborn domestic pigs |
| title_full | The influence of prenatal environmental conditions on the weight of newborn domestic pigs |
| title_fullStr | The influence of prenatal environmental conditions on the weight of newborn domestic pigs |
| title_full_unstemmed | The influence of prenatal environmental conditions on the weight of newborn domestic pigs |
| title_short | The influence of prenatal environmental conditions on the weight of newborn domestic pigs |
| title_sort | influence of prenatal environmental conditions on the weight of newborn domestic pigs |
| topic | environment conditions prenathal development newborn weigh domestic pigs coefficient of repeatability forecast’s successfullness |
| url | https://vavilov.elpub.ru/jour/article/view/1142 |
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