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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">vetpress</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука</journal-title><trans-title-group xml:lang="en"><trans-title>Agrarian science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-8155</issn><issn pub-type="epub">2686-701X</issn><publisher><publisher-name>Редакция журнала "Аграрная наука"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32634/0869-8155-2023-371-6-65-70</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-2659</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 И ВЕТЕРИНАРИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ZOOTECHNICS AND VETERINARY MEDICINE</subject></subj-group></article-categories><title-group><article-title>Кальциевые соли жирных кислот в кормлении цыплят-бройлеров: влияние на продуктивность и сохранность</article-title><trans-title-group xml:lang="en"><trans-title>Calcium salts of fatty acids in the feeding of broiler chickens: impact on productivity and safety</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>Кудинов</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudinov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Анатольевич Кудинов, инженер-технолог</p><p>ул. Фрунзе, д. 4, Алексеевка, Белгородская обл., 309850</p><p>Тел.: 89092089913</p><p> </p></bio><bio xml:lang="en"><p>Sergey Anatoliyevich Kudinov, Engineer-Technologist</p><p>4 Frunze str., Alekseevka, Belgorod region, 309850</p><p>Tel. 89092089913</p></bio><email xlink:type="simple">s.a.kudinov@efko.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>Хохлов</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Hohlov</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил Иванович Хохлов, директор</p><p>ул. Фрунзе, д. 4, Алексеевка, Белгородская обл., 309850</p></bio><bio xml:lang="en"><p>Mikhail Ivanovich Hohlov, Director</p><p>4 Frunze str., Alekseevka, Belgorod region, 309850</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кощаев</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Koshchaev</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иван Александрович Кощаев, кандидат сельскохозяйственных наук, старший преподаватель кафедры технологии производства и переработки сельскохозяйственной продукции</p><p>ул. Вавилова, д. 1, пос. Майский, Белгородская обл., 308503</p><p>Тел. 8(952) 422-80-15</p></bio><bio xml:lang="en"><p>Ivan Aleksandruvich Koshchaev, Candidate of Agricultural Sciences, senior lecturer of the Department of technology of production and processing of agricultural products</p><p>1 Vavilova str., village Maisky, Belgorod region, 308503</p><p>Тel. 8(952) 422-80-15</p></bio><email xlink:type="simple">koshchaev@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ООО «КРЦ “ЭФКО-Каскад”»<country>Россия</country></aff><aff xml:lang="en">«KRC “EFKO-Kaskad”» LLC<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Белгородский государственный аграрный университет<country>Россия</country></aff><aff xml:lang="en">Belgorod State Agricultural University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>16</day><month>06</month><year>2023</year></pub-date><volume>0</volume><issue>6</issue><fpage>65</fpage><lpage>70</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кудинов С.А., Хохлов М.И., Кощаев И.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Кудинов С.А., Хохлов М.И., Кощаев И.А.</copyright-holder><copyright-holder xml:lang="en">Kudinov S.A., Hohlov M.I., Koshchaev I.A.</copyright-holder><license 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://www.vetpress.ru/jour/article/view/2659">https://www.vetpress.ru/jour/article/view/2659</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Продукты ферментации клетчатки автохтонными микроорганизмами называют постбиотиками. Постбиотики — комплекс веществ, обладающих синергичным воздействием на обмен веществ и просвет кишечника в организме хозяина. Эти продукты жизнедеятельности молочнокислых бактерий (каприновая, каприловая и лауриновая кислоты) обладают выраженным антибиотическим действием на гнилостную микрофлору кишечника. Рассматривается влияние на продуктивность, сохранность и состав крови выделенного и синтезированного купажа короткоцепочечных жирных кислот в форме кальциевых солей.</p></sec><sec><title>Методы</title><p>Методы. Опыт был проведен на базе учебно-научной птицефабрики УНИЦ «Агротехнопарк» Белгородский ГАУ в феврале — апреле 2022 года. Объект исследований — цыплята-бройлеры, на которых изучали влияние кальциевых солей жирных кислот «Кальцифид Чикен». Из партии цыплят суточного возраста одного вывода кросса Ross 308 были сформированы три группы по 240 голов (с разбивкой по 40 голов в каждой клетке). Опыт длился 42 суток. Рассматривались показатели продуктивности и сохранности.</p></sec><sec><title>Результаты</title><p>Результаты. Применение нового продукта способствовало снижению конверсии в рационах 1-й и 2-й опытных групп. Сохранность контрольной группы на окончание опыта составила 97,08 %, 1-й опытной — 97,08%, 2-й опытной — 96,7%. Использование продукта «Кальцифид Чикен» способствовало повышению рентабельности: в 1-й опытной группе — на 4463 руб / 1000 гол, во 2-й опытной группе — на 3684 руб / 1000 гол в сравнении с контролем.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. The products of fiber fermentation by autochthonous microorganisms are called postbiotics. Postbiotics are a complex of substances that have a synergistic effect on the metabolism and intestinal contents in the host organism. These products of the vital activity of lactic acid bacteria (capronic, capric and lauric acids) have a pronounced antibiotic effect on the putrefactive intestinal microflora. The influence of the isolated and synthesized blend of short-chain fatty acids in the form of calcium salts on the productivity, safety and blood composition is considered.</p></sec><sec><title>Methods</title><p>Methods. To confirm its effectiveness, the experiment has been conducted on the basis of the educational and scientific poultry farm of the Educational and Scientific Innovation Center «Agrotechnopark» at FSBEI Belgorod State Agricultural University in February — April 2022. The object of research is broiler chickens, on which the effect of calcium salts of fatty acids «Calcifid Chicken» was studied. Three groups of 240 heads (with a breakdown of 40 heads in each cage) were formed from a batch of chickens of the daily age of one brood of the Ross 308 cross. The experiment lasted 42 days. Productivity and safety indicators were considered.</p></sec><sec><title>Results</title><p>Results. The use of the new product contributed to a decrease in conversion in the diets of the 1st and 2nd experimental groups. The safety of the control group at the end of the experiment was 97.08%, the 1st experimental group — 97.08%, the 2nd experimental group — 96.7%. The use of the «Calcifid Chicken» product contributed to an increase in profitability: in the 1st experimental group — by 4463 rubles / 1000 goals, in the 2nd experimental group — by 3684 rubles / 1000 goals in comparison with the control.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>цыплята-бройлеры</kwd><kwd>кальциевые соли жирных кислот</kwd><kwd>«Кальцифид Чикен»</kwd><kwd>сохранность</kwd><kwd>конверсия</kwd><kwd>рентабельность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>broiler chickens</kwd><kwd>calcium salts of fatty acids</kwd><kwd>«Calcifeed Chicken»</kwd><kwd>livability</kwd><kwd>conversion</kwd><kwd>profitability</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследование выполнено за счет средств ООО «КРЦ “ЭФКО-Каскад”»</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The research was carried out at the expense of «KRC “EFKO-Kaskad”» LLC</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">Lin J., Hunkapiller A.A., Layton A.C., Chang Y.-J., Robbins K.R. 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