<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">izvestiiatimacad</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Тимирязевской сельскохозяйственной академии</journal-title><trans-title-group xml:lang="en"><trans-title>IZVESTIYA OF TIMIRYAZEV AGRICULTURAL ACADEMY</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-342X</issn><publisher><publisher-name>ФГБОУ ВО РГАУ-МСХА имени К.А. Тимирязева</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26897/0021-342X-2024-5-86-100</article-id><article-id custom-type="elpub" pub-id-type="custom">izvestiiatimacad-693</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>ЗООТЕХНИЯ, БИОЛОГИЯ И ВЕТЕРИНАРНАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>LIVESTOCK BREEDING, BIOLOGY AND VETERINARY MEDICINE</subject></subj-group></article-categories><title-group><article-title>Полиномиальная сопряжённая изменчивость признаков линейной оценки экстерьера и удоя высокопродуктивного голштинского скота</article-title><trans-title-group xml:lang="en"><trans-title>Polynomial conjugate variability of traits of linear assessment of the exterior and milk yield of highly productive Holstein cattle</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7356-1090</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гарт</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gart</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гарт Владимир Владимирович, д-р с.-х. наук, профессор кафедры технологии пищевых производств и индустрии питания</p><p>630039, г. Новосибирск, ул. Добролюбова, 160</p></bio><bio xml:lang="en"><p>Vladimir V. Gart, DSc (Ag), Professor at the Department of Food Technology and Catering Industry</p><p>160 Dobrolyubova St., Novosibirsk, 630039</p></bio><email xlink:type="simple">gvlvl@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-1425-8622</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куликова</surname><given-names>С. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kulikova</surname><given-names>S. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Куликова Светлана Геннадьевна, д-р биол. наук, профессор кафедры ветеринарной генетики и биотехнологии</p><p>630039, г. Новосибирск, ул. Добролюбова, 160</p></bio><bio xml:lang="en"><p>Svetlana G. Kulikova, DSc (Bio), Professor at the Department of Veterinary Genetics and Biotechnology</p><p>160 Dobrolyubova St., Novosibirsk, 630039</p></bio><email xlink:type="simple">kulikovasg@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-2071-7658</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Богданова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogdanova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Богданова Ольга Валерьевна, старший преподаватель кафедры частной зоотехнии и кормления</p><p>630039, г. Новосибирск, ул. Добролюбова, 160</p></bio><bio xml:lang="en"><p>Olga V. Bogdanova,    Senior    Lecturer    at     the     Department of Private Animal Science and Feeding</p><p>160 Dobrolyubova St., Novosibirsk, 630039</p></bio><email xlink:type="simple">firstfloor75@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-3352-3958</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Норкина</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Norkina</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Норкина  Виолетта  Михайловна,  студент  магистратуры</p><p>630039, г. Новосибирск, ул. Добролюбова, 160</p></bio><bio xml:lang="en"><p>Violetta M. Norkina, Master’s Degree student</p><p>160 Dobrolyubova St., Novosibirsk, 630039</p></bio><email xlink:type="simple">violetta.norkina@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0341-5055</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Камалдинов</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kamaldinov</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Камалдинов Евгений Варисович, д-р биол. наук, заведующий кафедрой ветеринарной генетики и биотехнологии</p><p>630039, г. Новосибирск, ул. Добролюбова, 160</p></bio><bio xml:lang="en"><p>Evgeniy V. Kamaldinov,   DSc   (Bio),   Head   of   the   Department of Veterinary Genetics and Biotechnology</p><p>160 Dobrolyubova St., Novosibirsk, 630039</p></bio><email xlink:type="simple">ekamaldinov@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7402-4107</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петров</surname><given-names>А. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrov</surname><given-names>A. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петров Алексей Федорович, заведующий лабораторией прикладной биоинформатики</p><p>630039, г. Новосибирск, ул. Добролюбова, 160</p></bio><bio xml:lang="en"><p>Aleksey F. Petrov, Head of the Laboratory of Applied Bioinformatics</p><p>160 Dobrolyubova St., Novosibirsk, 630039</p></bio><email xlink:type="simple">alex@nsau.edu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Новосибирский государственный аграрный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State Agrarian University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>05</day><month>08</month><year>2024</year></pub-date><volume>0</volume><issue>5</issue><fpage>86</fpage><lpage>100</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гарт В.В., Куликова С.Г., Богданова О.В., Норкина В.М., Камалдинов Е.В., Петров А.Ф., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Гарт В.В., Куликова С.Г., Богданова О.В., Норкина В.М., Камалдинов Е.В., Петров А.Ф.</copyright-holder><copyright-holder xml:lang="en">Gart V.V., Kulikova S.G., Bogdanova O.V., Norkina V.M., Kamaldinov E.V., Petrov A.F.</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://izvestiia.timacad.ru/jour/article/view/693">https://izvestiia.timacad.ru/jour/article/view/693</self-uri><abstract><p>В статье приведен анализ сопряженной изменчивости удоя 1243 коров первой лактации с 18 линейными признаками экстерьера. Исследования проводились на первотелках высокопродуктивной субпопуляции голштинского скота с удоем свыше 13000 кг на фуражную корову. Средняя продуктивность первотелок за 305 дней лактации составила 10093 кг молока. Связь между удоем и линейными признаками оценивали вычислением рангового коэффициента корреляции Спирмена после корректировки оценочных значений линейных признаков для получения наивысшего ранга животными с оптимальным баллом. Представлена таблица корректировки балльной оценки. Значения рассчитанных коэффициентов корреляции по всем исследованным первотелкам находились в пределах от –0,06 до +0,192, что характеризует связь как слабую. Анализ корреляций в разных группах продуктивности, варьирующих в пределах от –0,109 до +0,191, позволил спрогнозировать возможные дальнейшие изменения связи линейных признаков с удоем при отборе на повышение молочной продуктивности. Установлено, что сопряженность удоя с комплексом линейных признаков (ширина задних долей вымени, длина передних долей вымени, высота прикрепления задних долей вымени, рост, обмускуленность, борозда вымени, длина сосков) была в 1,44 раза и более выше, чем связь удоя с любым из 18 исследованных признаков в отдельности. Изложен алгоритм составления комплекса линейных признаков. Приведены и проанализированы графики зависимости удоя от одного и от комплекса линейных признаков. Показаны преимущества прогнозирования удоя первотелок по комплексу линейных параметров по сравнению с использованием одиночного признака экстерьера. Построена полиномиальная регрессионная модель с высокой точностью аппроксимации (R2 = 0,9538).</p><p>8).</p></abstract><trans-abstract xml:lang="en"><p>The conjugate variability of milk yield of 1243 first lactation cows with 18 linear exterior traits was analyzed. The research was carried out on the first-calf heifers of a highly productive subpopulation of Holstein cattle with milk yield of over 13000 kg per forage cow. The average productivity of the first-calf heifers for 305 days of lactation was 10093 kg of milk. The relationship between milk yield and linear traits was assessed by calculating the Spearman’s correlation coefficient after adjusting the estimated values of the linear traits to obtain the highest rank of animals with an optimal score. The table of score adjustments is presented. The values of the calculated correlation coefficients for all the studied first-calf heifers ranged from 0.06 to +0.192, which characterizes the relationship as weak. The analysis of correlations in different productivity groups, ranging from 0.109 to +0.191, made it possible to predict possible further changes in the relationship between linear traits and milk yield when selecting for increased milk productivity. It was found that the conjugacy of milk yield with a complex of linear traits (Rear Udder Width, Fore Udder Length, Rear Udder Height, Stature, Muscularity, Udder Cleft, Teat Length) was 1.44 or more times higher than the relationship of milk yield with any of the eighteen studied traits separately. The algorithm for creating a complex of linear traits is described. Graphs of milk yield dependence on one and on a complex of linear traits are presented and analyzed. The advantages of predicting the milk yield of the first-calf heifers by a set of linear parameters are shown in comparison with using a single trait of the exterior. The polynomial regression model with high approximation accuracy (R2=0.9538) is constructed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>голштинская порода</kwd><kwd>первотёлки</kwd><kwd>экстерьер</kwd><kwd>линейная оценка</kwd><kwd>продуктивность</kwd><kwd>удой</kwd><kwd>корреляция</kwd><kwd>Западная Сибирь</kwd><kwd>комплекс линейных признаков</kwd><kwd>регрессионная модель</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Holstein breed</kwd><kwd>first-calf heifers</kwd><kwd>exterior</kwd><kwd>linear assessment</kwd><kwd>productivity</kwd><kwd>milk yield</kwd><kwd>correlation</kwd><kwd>Western Siberia</kwd><kwd>complex of linear features</kwd><kwd>regression model</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена по теме Государственного задания № FESF 2023 0016</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Богданова О.В., Камалдинов Е.В., Куликова С.Г. и др. Научно-теоретическое обоснование системы совершенствования селекционно-племенной работы в молочном скотоводстве Новосибирской области // Вестник Новосибирского государственного аграрного университета. – 2023. – № 2 (67). – С. 148-155. DOI: 10.31677/2072-6724-2023-67-2-148-155.</mixed-citation><mixed-citation xml:lang="en">Bogdanova O.V., kamaldinov E.V., kulikova S.G., Garth V.V. et al. Scientific andtheoreticalsubstantiationofthesystemofimprovingselectionandbreedingworkindairycattle breeding in the Novosibirsk region. Bulletin of NSAU (Novosibirsk State Agrarian University). 2023;2(67):149-155. (In Russ.) https://doi.org/10.31677/2072-6724-2023-67-2-149-155</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Petrov A.F., Bogdanova O.V. et all. Clustering of countries based on dairy productivity characteristics of Holstein cattle for breeding material selection / A.F. Petrov, O.V. Bogdanova, K.N. Narozhnykh, E.V. kamaldinov, K.S. Shatokhin, V.V. Gart, S.G. kulikovaand T.A. Zhigulin// Veterinary World.– 2024.– Vol. 17, № 5.– Pр. 1108-1118. DOI: 10.14202/vetworld.2024.1108-1118</mixed-citation><mixed-citation xml:lang="en">Petrov A.F., Bogdanova O.V., Narozhnykh k.N., kamaldinov E.V. et al. Clustering of countries based on dairy productivity characteristics of Holstein cattle for breeding material selection. Veterinary World. 2024;17(5):1108-1118. https://doi.org/10.14202/vetworld.2024.1108-1118</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Анохин С.М., Жучаев К.В., Иванова О.А. и др. Молочная продуктивность первотелок голштинской и симментальской пород с разным уровнем воспроизводительных качеств // Вестник ИрГСХА. – 2019. – № 93. – С. 121-130.</mixed-citation><mixed-citation xml:lang="en">Anokhin C.M., Zhuchaev k.V., Ivanova O.A., Ejlert A.I., kochneva M.L. Milk productivity of the first-calf calving heifers of Holstein and Simmental breeds with different level of reproductive qualities. Vestnik IrGSHA. 2019;93:121-130. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Madrid S., Echeverri J. Association between conformation traits and productive performance in Holstein cows in the department of Antioquia, Colombia // Veterinaria y Zootecnía. – 2014. – Vol. 8, № 1. – Pр. 35-47.</mixed-citation><mixed-citation xml:lang="en">Madrid S., Echeverri J. Association between conformation traits and productive performance in Holstein cows in the department of Antioquia, Colombia. Veterinaria y Zootecnía. 2014;8(1):35-47. https://doi.org/10.17151/vetzo.2014.8.1.3</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Miglior F., Fleming A., Malchiodi F. et al. A 100-Year Review: Identification and genetic selection of economically important traits in dairy cattle // J Dairy Sci. United States. – 2017. – Vol. 100, № 12. – Pр. 10251-10271. DOI: 10.3168/jds.2017-12968.</mixed-citation><mixed-citation xml:lang="en">Miglior F., Fleming A., Malchiodi F., Brito L.F. et al. A 100-Year Review: Identification and genetic selection of economically important traits in dairy cattle. J Dairy Sci. United States. 2017;100(12):10251-10271. https://doi.org/10.3168/jds.2017-12968</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Cole J., Eaglen S., Maltecca C. et al. The future of phenomics in dairy cattle breeding // Animal Frontiers. – 2020. – Vol. 10, № 2. – Pр. 37-44. DOI: 10.1093/af/vfaa007.</mixed-citation><mixed-citation xml:lang="en">Cole J., Eaglen S., Maltecca C., Mulder H.A., Pryce J.E. The future of phenomics indairycattlebreeding. Animal Frontiers.2020;10(2):37-44. https://doi.org/10.1093/af/vfaa007</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Богданова О.В., Гарт В.В., Куликова С.Г. и др. Различия между странами по признакам линейной оценки экстерьера крупного рогатого скота голштинской породы // Достижения науки и техники АПК. – 2023. – Т. 37, № 8. – С. 59-64. DOI: 10.53859/02352451-2023-37-8-59.</mixed-citation><mixed-citation xml:lang="en">Bogdanova O.V., Gart V.V., Efremova O.V., kulikova S.G. et al. Differences between countries in terms of linear assessment of the conformation of Holstein cattle. Achievements of Science and Technology in Agro-Industrial Complex. 2024;38(3):64-70. (In Russ.) https://doi.org/10.53859/02352451-2023-37-8-59</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Куликова С.Г., Богданова О.В., Гарт В.В. и др. Связь между признаками линейной оценки экстерьера голштинских коров // Теория и практика современной аграрной науки: Сборник VII Национальной (всероссийской) научной конференции с международным участием, г. Новосибирск, 26 февраля 2024 г. – Новосибирск: Золотой колос, 2024. – С. 389-392.</mixed-citation><mixed-citation xml:lang="en">kulikova S.G., Bogdanova O.V, Gart V.V., Petrov A.F. et al. Relationship between the traits of a linear assessment of the exterior of Holstein cows. VII natsionalnaya (vserossiyskaya) nauchnaya konferentsiya s mezhdunarodnym uchastiyem “Teoriya i praktika sovremennoy agrarnoy nauki”. February 26, 2024. Novosibirsk, Russia: Zolotoy kolos, 2024:389-392. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Toghiani S., VanRaden P.M. National Index Correlations and Actual vs. Expected Use of Foreign Sires // Leeuwarden, The Netherlands. – 2021. – Vol. 56. – Pр. 52-59.</mixed-citation><mixed-citation xml:lang="en">Toghiani S., VanRaden P.M. National Index Correlations and Actual vs. Expected Use of Foreign Sires. ICAR-Interbull Conference, April 26, 2021. Leeuwarden, the Netherlands. 2021;56:52-59.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Sartori C., Guzzo N., Mazza S. et al. Genetic correlations among milk yield, morphology, performance test traits and somatic cells in dual-purpose Rendena breed // Animal. – 2018. – Vol. 12, № 5. – Pр. 906-914. DOI:10.1017/S1751731117002543</mixed-citation><mixed-citation xml:lang="en">Sartori C., Guzzo N., Mazza S., Mantavani R. Genetic correlations among milk yield, morphology, performance test traits and somatic cells in dual-purpose Rendena breed. Animal. 2018;12(5):906-914. https://doi.org/10.1017/S1751731117002543</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Dahiya S., Kumar S., Kumar M. Current status of research on linear type traits in Indian cattle and future strategies // Tropical Animal Health and Production. – 2020. – Vol. 52. – Pр. 2221-2232. DOI: 10.1007/s11250-020-02302-w.</mixed-citation><mixed-citation xml:lang="en">Dahiya S., kumar S., kumar M. Current status of research on linear type traits in Indian cattle and future strategies. Tropical Animal Health and Production. 2020;52:2221-2232. https://doi.org/10.1007/s11250-020-02302-w</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Батанов С.Д., Шайдуллина М.М. Продуктивные качества и экстерьерные особенности коров черно-пестрой породы разных линий // Ученые записки Казанской государственной академии ветеринарной медицины им. Н.Э. Баумана. – 2019. – Т. 239, № 3. – Pр. 29-34. DOI: 10.31588/2413-4201-1883-239-3-29-35.</mixed-citation><mixed-citation xml:lang="en">Batanov S.D., Shaydullina M.M. Productive qualities and exterior features of black-and-white breeds cows of different lines. Uchenye zapiski Kazanskoy GosudarstvennoyAkademii Veterinarnoy Meditsinyim. N.E. Baumana. 2019;2399(3):29-34. (In Russ.) https://doi.org/10.31588/2413-4201-1883-239-3-29-35</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Batanov S.D., Baranova I., Starostina O. Innovative methods in study of animal’s conformation // Bulg. J. Agric. Sci. – 2020. – Vol. 26, № 6. – Pр. 1286-1291.</mixed-citation><mixed-citation xml:lang="en">Batanov S.D., Baranova I., Starostina O. Innovative methods in study of animal’s conformation. Bulg. J. Agric. Sci. 2020;26(6):1286-1291.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Цидик О.Н. Взаимосвязь молочной продуктивности с линейной оценкой экстерьера // Ученые записки учреждения образования «Витебская ордена Знак Почета государственная академия ветеринарной медицины». – 2019. – Т. 55, № 3. – С. 158-162.</mixed-citation><mixed-citation xml:lang="en">Tsidik O.N. Correlation of dairy productivity with linear exterior evaluation. Uchenye zapiski uchrezhdeniya obrazovaniya Vitebskaya ordena Znak pocheta gosudarstvennaya akademiya veterinarnoy mediciny. 2019;55(3):158-162. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Misztal I., Lawlor T., Short Т. et al. Multiple-trait estimation of variance components of yield and type traits using an animal model // Journal of Dairy Science. – 1992. – Vol. 75, № 2. – Pр. 544-551.</mixed-citation><mixed-citation xml:lang="en">Misztal I., Lawlor T., Short T., VanRaden P.M. Multiple-trait estimation of variance components of yield and type traits using an animal model. Journal of Dairy Science. 1992;75(2):544-551. https://doi.org/10.3168/jds.S0022-0302(92)77791-1</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Ismael H., Janković D., Stanojević D. et al. Estimation of heritability and genetic correlations between milk yield and linear type traits in primiparous Holstein-Friesian cows // Revista Brasileira de Zootecnia. – 2021. – Vol. 50. – Pр. 1-10. DOI: 10.37496/rbz5020200121.</mixed-citation><mixed-citation xml:lang="en">Ismael H., Janković D., Stanojević D., Bogdanović V. et al. Estimation of heritability and genetic correlations between milk yield and linear type traits in primiparous Holstein-Friesian cows. Revista Brasileira de Zootecnia. 2021;50:1-10. https://doi.org/10.37496/rbz5020200121</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Ефимова Л.В., Кулакова Т.В., Иванова О.В., Иванов Е.А. Взаимосвязь между признаками линейной оценки экстерьера и молочной продуктивностью коров // Вестник Новосибирского государственного аграрного университета. – 2017. – № 3 (44). – С. 115-124.</mixed-citation><mixed-citation xml:lang="en">Efimova L.V., kulakova T.V., Ivanova O.V., Ivanov E.A. Relation between linear assessment of exterior and cows’ milk productivity. Bulletin of NSAU (Novosibirsk State Agrarian University). 2017;3(44):115-124. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Петров А.Ф., Камалдинов Е.В., Панферова О.Д. и др. Моделирование объема туловища по линейным признакам скота ирменского типа // Сибирский вестник сельскохозяйственной науки. – 2020. – Т. 50, № 6. – С. 106-114. DOI: 10.26898/0370-8799-2020-6-12.</mixed-citation><mixed-citation xml:lang="en">Petrov A.F., kamaldinov E.V., Panferova O.D., Efremova O.V., Rogozin V.A. BodyvolumemodelingbylinearfeaturesoftheIrmentypecattle.SiberianHeraldofAgricultural Science. 2020;50(6):106-114. (In Russ.) https://doi.org/10.26898/0370-8799-2020-6-12</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Xue X., Hu H., Zhang J. et al. Estimation of genetic parameters for conformation traits and milk production traits in Chinese Holsteins // Animals. – 2022. – Vol. 13, № 1. – Рр. 1-12. DOI:10.3390/ani13010100</mixed-citation><mixed-citation xml:lang="en">Xue X., Hu H., Zhang J., Ma Y. et al. Estimation of genetic parameters for conformation traits and milk production traits in Chinese Holsteins. Animals. 2022;13(1):1-12. https://doi.org/10.3390/ani13010100</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Narozhnykh K., Kamaldinov E., Bogdanova O. et al. Prediction of Milk Productivity Based on Conformation Traits in Cows // International Journal of Chemical and Biochemical Sciences. – 2023. – Vol. 24, № 6. – Рр. 521-529.</mixed-citation><mixed-citation xml:lang="en">Narozhnykh k., kamaldinov E., Bogdanova O., kulikova S., Petrov A. Prediction of Milk Productivity Based on Conformation Traits in Cows. International Journal of Chemical and Biochemical Sciences. 2023;24(6):521-529.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Правила оценки телосложения дочерей быков-производителей молочно-мясных пород. – М.: МСХиП, Департамент животноводства и племенного дела, 1996. – 14 с.</mixed-citation><mixed-citation xml:lang="en">Rules for evaluating the physique of the daughters of dairy and meat-producing bulls. Moscow, Russia: MSkhiP, Departament zhivotnovodstva i plemennogo dela, 1996:14. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Методика оценки телосложения крупного рогатого скота молочного и молочно-мясного направлений продуктивности. – М.: МСХ РФ, 2017. – 24 с.</mixed-citation><mixed-citation xml:lang="en">Method of assessment of dairy and dual-purpose cattle. Moscow, Russia: MSkh RF; 2017:24. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Гарт В.В., Ефремова О.В., Куликова С.Г. и др. Характеристика линейного профиля первотелок голштинской породы разной продуктивности в условиях промышленного комплекса // Достижения науки и техники АПК. – 2024. – Т. 38, № 3. – С. 45-15. DOI: 10.53859/02352451_2024_38_3_45.</mixed-citation><mixed-citation xml:lang="en">Gart V.V., Efremova O.V., kulikova S.G., Bogdanova O.V. et al. Characteristics of the linear profile of Holstein heifers of different productivity under the conditions of the industrial complex. Achievements of Science and Technology in Agro-Industrial Complex. 2024;38(3):45-50 (In Russ.) https://doi.org/10.53859/02352451_2024_38_3_45</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
