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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">zootech</journal-id><journal-title-group><journal-title xml:lang="ru">Зоотехническая наука Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Zootechnical Science of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0134-9732</issn><publisher><publisher-name>Научно-практический центр Национальной академии наук Беларуси по животноводству</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">zootech-901</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ГЕНЕТИКА, РАЗВЕДЕНИЕ, СЕЛЕКЦИЯ, БИОТЕХНОЛОГИЯ РАЗМНОЖЕНИЯ И ВОСПРОИЗВОДСТВО</subject></subj-group></article-categories><title-group><article-title>Оценка и отбор ремонтного молодняка в процессе формирования линии крупной белой породы свиней</article-title><trans-title-group xml:lang="en"><trans-title>Evaluation and selection of young replacement animals in the formation process of large white breed line of pigs</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соколов</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokolov</surname><given-names>N. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карманов</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Karmanov</surname><given-names>D. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зелкова</surname><given-names>Н. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Zelkova</surname><given-names>N. G.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГНУ «Северо-Кавказский научно-исследовательский институт животноводства Россельхозакадемии»</institution></aff><aff xml:lang="en"><institution>FSBRE «North Caucasian Research and Development Institute for Animal Husbandry»</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2013</year></pub-date><pub-date pub-type="epub"><day>12</day><month>08</month><year>2022</year></pub-date><volume>48</volume><issue>1</issue><fpage>156</fpage><lpage>164</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Соколов Н.В., Карманов Д.А., Зелкова Н.Г., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Соколов Н.В., Карманов Д.А., Зелкова Н.Г.</copyright-holder><copyright-holder xml:lang="en">Sokolov N.V., Karmanov D.A., Zelkova N.G.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://zootech.belal.by/jour/article/view/901">https://zootech.belal.by/jour/article/view/901</self-uri><abstract><p>При формировании линии крупной белой породы оценены показатели развития и мясных качеств ремонтного молодняка: возраст достижения живой массы 100 кг - 181 день, длина туловища - 124 см, толщина шпика над 6-7-м грудными позвонками и над последним ребром - соответственно, 14,8 и 11,0 мм, выход постного мяса в туше со шкурой, головой и ножками - 56,7 %. Получены коэффициентов корреляции между указанными показателями. С помощью ультразвукового прибора «реального времени» изучена интенсивность жироотложения и синтеза мышечной ткани у 12 свинок крупной белой породы мясного типа. Установлено, что жироотложение было равномерным в возрастные периоды 105-135 и 135-165 дней, в то время как синтез мышечной ткани снизился во второй период в 1,6 раза. Предлагается повысить концентрацию питательных веществ в рационе молодняка в период 135-165 дней для полного удовлетворения их потребности в доступном белке, аминокислотах, витаминах, макро- и микроэлементах.</p></abstract><trans-abstract xml:lang="en"><p>When forming a line of large white breed the development indices and meat traits of young animals were shown: the age of reaching live weight of 100 kg - 181 days, body length - 124 cm, thickness of back fat over the 6-7th thoracic vertebrae and over the last rib - 14,8 and 11,0 mm, the output of lean meat in the carcass with skin, head and feet - 56,7 %. Correlation ratios between the indicated indices were obtained. With the help of ultrasonic device of "real time" the intensity of fat deposition and muscle tissue from 12 pigs of large white breed of meat type was studied. It was determined that fat deposition was uniform in the age periods of 105-135 and 135-165 days, while muscle synthesis reduced in the second period by 1.6 times. It is proposed to increase the concentration of nutrients in the diet for young animals during the period of 135-165 days to completely meet their requirements for affordable protein, amino acids, vitamins, macro-and micronutrients.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>крупная белая порода</kwd><kwd>ультразвук</kwd><kwd>толщина шпика</kwd><kwd>глубина мышцы</kwd><kwd>содержание постного мяса</kwd><kwd>коэффициенты корреляции</kwd></kwd-group><kwd-group xml:lang="en"><kwd>large white breed</kwd><kwd>ultrasound</kwd><kwd>back fat thickness</kwd><kwd>depth of muscle</kwd><kwd>lean meat content</kwd><kwd>correlation ratios</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Chesnais, J. P. 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