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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">ilvm</journal-id><journal-title-group><journal-title xml:lang="ru">Нормативно-правовое регулирование в ветеринарии</journal-title><trans-title-group xml:lang="en"><trans-title>Legal regulation in veterinary medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-6252</issn><publisher><publisher-name>SpbGUVM Publishing House</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52419/issn2782-6252.2025.4.237</article-id><article-id custom-type="elpub" pub-id-type="custom">ilvm-994</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>БИОХИМИЯ, АНАТОМИЯ, ФИЗИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOCHEMISTRY, ANATOMY, PHYSIOLOGY</subject></subj-group></article-categories><title-group><article-title>Концентрация стероидных гормонов в амниотической жидкости кур</article-title><trans-title-group xml:lang="en"><trans-title>Concentration of steroid hormones in the amniotic fluid of chickens</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>Федорова</surname><given-names>З. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedorova</surname><given-names>Z. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зоя Леонидовна Федорова - канд. с/х наук, старший научный сотрудник, руководитель группы сохранения генофондных пород кур</p></bio><bio xml:lang="en"><p>Zoya L. Fedorova - Candidate of Agricultural Sciences, Senior Researcher, Head of the Gene Pool Chicken Breeds Conservation Group</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4698-3917</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ширяев</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shiryaev</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Геннадий Владимирович Ширяев - канд. с/х наук </p></bio><bio xml:lang="en"><p>Gennady Vl. Shiryaev - Candidate of Agricultural Sciences</p></bio><email xlink:type="simple">red2031@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Всероссийский научно-исследовательский институт генетики и разведения сельскохозяйственных животных – филиал Федерального государственного бюджетного научного учреждения «Федеральный исследовательский центр животноводства – ВИЖ имени академика Л. К. Эрнста»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>All-Russian Research Institute of Genetics and Breeding of Farm Animals – Branch of the Federal State Budgetary Scientific Institution “Federal Research Center for Animal Husbandry – All-Russian Research Institute of Animal Husbandry named after Academician L.K. Ernst”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>11</day><month>02</month><year>2026</year></pub-date><volume>0</volume><issue>4</issue><fpage>237</fpage><lpage>243</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Федорова З.Л., Ширяев Г.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Федорова З.Л., Ширяев Г.В.</copyright-holder><copyright-holder xml:lang="en">Fedorova Z.L., Shiryaev G.V.</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://ilvm.elpub.ru/jour/article/view/994">https://ilvm.elpub.ru/jour/article/view/994</self-uri><abstract><p>Целью исследования стало анализ амниотической жидкости эмбрионов кур на содержание и концентрацию стероидных гормонов, таких как тестостерон, эстрадиол, дегидроэпиандростерон (ДГЭА), а также выявление различий по этим показателям между породами кур разного направления продуктивности. Для исследования были взяты яйца от кур пород: русская белоснежная (яичная), пушкинская (мясояичная), узбекская бойцовая (спортивная), а также от финального гибрида Ross300 (мясная). С 8- го дня инкубации исследовалась амниотическая жидкость на содержание стероидных гормонов. Иммуноферментный анализ показал, что в амниотической жидкости эмбриона кур с 8-х суток инкубации содержатся стероидные гормоны: тестостерон, эстрадиол и ДГЭА. С 8-х до 11-х суток уровень этих гормонов меняется незначительно, видимо это тот уровень гормонов, который изначально был в снесенном яйце (материнские гормоны). На 12-е сутки происходит резкое повышение концентрации изучаемых гормонов у кур всех пород. Пик роста концентраций гормонов зафиксирован на 13-15-е сутки инкубации. Отличия по содержанию эстрадиолу по породам в течение эмбрионального периода в основном были незначительными. При этом наибольшие концентрации тестостерона и ДГЭА в амниотической жидкости зафиксированы в группе эмбрионов бройлеров Ross300. Статический анализ выявил достоверную положительную корреляцию между показателями амниотической жидкости тестостеронДГЭА 0,83 (Р≤0,01) в группе эмбрионов русской белой породы, 0,89 (Р≤0,01) и в группе эмбрионов пушкинской породы, а также между показателями тестостерон-эстрадиол в группе эмбрионов бройлеров Ross300 0,72 (Р≤0,01).</p></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to analyze the amniotic fluid of chicken embryos for the concentration of steroid hormones, including testosterone, estradiol, and dehydroepiandrosterone (DHEA), and to determine whether these parameters differ between chicken breeds with different production rates. Eggs from various chicken breeds with different production rates were used for the study: Russian Snow White (egg), Pushkinskaya (meat and egg), Uzbek Fighting (sports), and the final Ross300 hybrid (meat). Starting on the eighth day of incubation, the amniotic fluid was analyzed for steroid hormone levels. An enzyme-linked immunosorbent assay revealed that the amniotic fluid of chicken embryos starting on the eighth day of incubation contained the steroid hormones testosterone, estradiol, and DHEA. From days 8 to 11, the levels of these hormones change only slightly, apparently reflecting the initial levels in the egg (maternal hormones). On day 12, a sharp increase in the concentration of the hormones studied occurs in hens of all breeds. The peak increase in hormone concentrations was recorded on days 13–15 of incubation. Differences in estradiol levels by breed during the embryonic period were generally minor. However, the highest concentrations of testosterone and DHEA in the amniotic fluid were recorded in the Ross300 broiler embryo group. Statistical analysis revealed a reliable positive correlation between the amniotic fluid testosterone-DHEA indices 0.83 (P≤0.01) in the group of Russian White breed embryos, 0.89 (P≤0.01) in the group of Pushkin breed embryos, as well as between the testosteroneestradiol indices in the group of Ross300 broiler embryos 0.72 (P≤0.01).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>эмбрион</kwd><kwd>куры</kwd><kwd>амниотическая жидкость</kwd><kwd>гормоны</kwd><kwd>тестостерон</kwd><kwd>эстрадиол</kwd><kwd>дегидроэпиандростерон</kwd></kwd-group><kwd-group xml:lang="en"><kwd>embryo</kwd><kwd>chickens</kwd><kwd>amniotic fluid</kwd><kwd>hormones</kwd><kwd>testosterone</kwd><kwd>estradiol</kwd><kwd>dehydroepiandrosterone</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Министерства науки и высшего образования РФ, по теме Государственного задания ГЗ FGGN-2024-0013 с использованием ЦКП «Генетическая коллекция редких и исчезающих пород кур» (г. 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