ivmМеждународный вестник ветеринарииInternational Journal of Veterinary Medicine2072-2419SpbGUVM Publishing House10.52419/issn2072-2419.2023.4.197ivm-1173Research ArticleЗООГИГИЕНА, САНИТАРИЯ, КОРМЛЕНИЕZOOHYGIENE, SANITATION, FEEDINGВлияние ферментной добавки в сочетании с цинком в ультрадисперсной форме на продуктивные показатели цыплят-бройлеровThe effect of an enzyme additive in combination with zinc in an ultrafine form on the productive performance of broiler chickenshttps://orcid.org/0000-0002-8755-414XНечитайлоК. С.NechitailoK. S.

канд. биол. наук, науч. сотр.

PhD of Biological  Sciences,  researcher

k.nechit@mail.ruhttps://orcid.org/0000-0002-5125-5981СизоваЕ. А.SizovaE. A.

д-р  биол.  наук,  вед.  науч.  сотр.

Doctor of Biological  Sciences,  Leading  Researcher

https://orcid.org/0000-0001-5134-0396РязанцеваК. В.RyazantsevaK. V.

мл. науч. сотр.

research  assistant

https://orcid.org/0000-0003-0561-7002КванО. В.KvanO. V.

канд. биол. наук, ст. науч. сотр.

PhD of Biological  Sciences,  Senior  Researcher

ФГБНУ «Федеральный научный центр биологических систем и агротехнологий Российской академии наук»; ФГБОУ ВО «Оренбургский государственный университет»РоссияFederal Scientific Center for Biological Systems and Agricultural Technologies of the Russian Academy of Sciences; FGBOU HE "Orenburg State University"Russian FederationФГБНУ «Федеральный научный центр биологических систем и агротехнологий Российской академии наук»РоссияFederal Scientific Center for Biological Systems and Agricultural Technologies of the Russian Academy of SciencesRussian Federation20231212202304197205Copyright © Нечитайло К.С., Сизова Е.А., Рязанцева К.В., Кван О.В., 20232023Нечитайло К.С., Сизова Е.А., Рязанцева К.В., Кван О.В.Nechitailo K.S., Sizova E.A., Ryazantseva K.V., Kvan O.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vetjournal.spbguvm.ru/jour/article/view/1173

Птицеводство является одной из важнейших и перспективных отраслей животноводства.  С  учётом  наращивания  темпов промышленного  птицеводства,  для  стабильного развития  отрасли  и  улучшения конкурентоспособности на мировом рынке, все больше внимания уделяется поиску безопасных альтернативных агентов для увеличения продуктивности. В исследовании изучена стратегия скармливания в виде кормовой добавки веществ различной природы, в частности ферментативного комплекса (I группа (0,05 %; эндо-1,4-бета-ксиланаза – 4000 ед./г, альфа-амилаза – 400 ед./г и субтилизин – 8000 ед./г)), и цинка в ультрадисперсной форме (II группа (3 мг/кг; 164±31,2 нм)). Установлено, в I группе коэффициенты переваримости сырого протеина были выше на 6,03 % (Р≤0,05), сырой клетчатки на 3,68 % (Р≤0,05), безазотистых экстрактивных веществ на 2,39 % (Р≤0,05) в сравнении с контролем. При этом, во II группе изменения зафиксированы в отношении сырого протеина и сырой клетчатки – увеличение на 6,51% (Р≤0,01) и 7,59 % (Р≤0,05), соответственно. В 42-суточном возрасте живая масса цыплят-бройлеров I была выше контроля на 10,1 % (Р≤0,05), во II группе на 11,32 % (Р≤0,01). При этом затраты корма на 1 кг прироста были минимальными во II группе, на 16,79 % ниже контрольных значений. Таким образом, максимальный продуктивный эффект был отмечен при введении комплекса ферментной добавки в сочетании с цинком в ультрадисперсной форме.

Poultry  farming  is  one of  the  most  important  and  promising  branches  of  animal husbandry. Given the increasing rate of industrial poultry farming, for the stable development of the industry and improving competitiveness  in  world  markets,  more  and more attention is paid to the search for safe alternative  agents  to  increase  productivity. The study examined the strategy of feeding substances of different nature as feed additives, in particular, enzyme complexes separately  (group  I  (0,05%;  endo-1,4-beta-xylanase - 4000 units/g, alpha-amylase - 400 units/g and subtilisin - 8000 units/g)) and in combination with ultradispersed zinc (group II  (3  mg/kg;  164±31,2  nm)).  It  was  found that  in  group  I  the  digestibility  ratios  of crude  protein  were  higher  by  6.03  % (P≤0.05), crude  fiber  by  3.68  %  (P≤0.05), nitrogen-free  extractive  substances  by  2.39 %  (P≤0.05) compared  to  control.  At  the same time, in group II, changes were recorded in crude protein and crude fiber - an increase  of  6.51%  (P≤0.01)  and  7.59% (P≤0.05), respectively.  At  42  days  of  age, the  live  weight  of  broiler  chickens  I  was 10.1% higher than control (P≤0.05), and in group II by 11.32% (P≤0.01). At the same time, the cost of feed per 1 kg of growth was minimal in group II, 16.79% lower than the control values. Thus, the maximum productive effect was observed with the introduction  of  a  complex  enzyme  supplement  in combination  with  zinc  in  ultradispersed form.

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The authors declare that there are no conflicts of interest present.