Duskaev GК, Kazachkova NM, Ushakov AS, Nurzhanov BS, Rysayev AF, Rakhmatullin ShG, Ryabov NI.
Research was carried out supported by Russian Scientific Foundation (project 16-16-10048)
Changes in the productive qualities of broiler chickensagainst the background
of enzyme-containing diet and Quercus cortex extract
G К Duskaev1, N M Kazachkova1, A SU shakov2, B S Nurzhanov1, A F Rysayev1, Sh G Rakhmatullin1, N I Ryabov1
1 Federal Research Center for Biological Systems and Agrotechnologies of the Russian Academy of Sciences (Orenburg, Russia)
2Federal Scientific Center «All-Russian Research and Technological Institute of Poultry of the Russian Academy of Sciences»(Moscow region, Sergiev Posad)
Summary. The use of antibiotics in poultry production is prohibited both in the European Union and in the countries wishing to export to the EU. The growing consumer demand for healthy products around the world turns phytobiotics into the best alternative, effective, reliable and affordable.
In addition, it is known that metabolites of medicinal plants are inhibitors of Quorum Sensing system in bacteria. In this connection, the purpose of the research was to study the effect of Quercus cortex extract at the optimal dose on the productivity and condition of body of healthy broiler chickens.
For the experiment, we selected 120 heads of 7-day healthy broiler chickens, divided into 4 groups using the analog method.
The control group – basic diet (BD); I experimental group – BD+Quercus cortex extract (2.5 ml/kg live weight); II experimental group – BD+Quercus cortex extract (2.5 ml/ kg live weight)+enzyme preparation: glucoamylase – not less than 1000 units/g and xylanase –up to 600 units/g (5 g/10 kg of feed); III experimental group – OR+enzyme preparation: glucoamylase – not less than 1000 units/g and xylanase –up to 600 units/g (5 g/10 kg of feed).
In the course of the research, an increase in the palatability of feed in the groups over the entire period of the experiment was found to be 2.6-15.4%, the increase in live weight of broiler chickens – by 3.1-16.6% and a decrease in feed consumption per 1 kg of live weight (by 3.7-9.2%). There was an increase in the concentration of iron in broiler chickens I and II experimental groups in the blood (7.8-11.8%), in the liver (23.7-92.4 %; P≤0.05), in the spleen (53.9-77.7%; P≤0.05) against the background of a decrease in muscle tissue. Thus, the inclusion of Quercus cortex extract («antiquorum» substances detected) in the enzyme-containing ration increases the productivity of poultry.
Key words: broiler chickens, feeding, Quercus cortex, enzyme preparation: glucoamylase and xylanase, poultry productivity, palatability of food, live weight, blood.
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Duskaev Galimzhan Kalikhanovich, Dr. Sci. (Biol.), Deputy Director For Science, Head of Department of Agricultural Animals Nutrition and Fodder Technology named after S.G. Leushin, Federal Research Center for Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 460000, Orenburg, Russia, 29, 9 Januarya St., tel.: 8(3532)43-46-79, e-mail: firstname.lastname@example.org
Kazachkova Nadezhda Mikhaylovna, Cand. Sci. (Biol.),Researcher, Department of Agricultural Animals Nutrition and Fodder Technology named after S.G. Leushin, Federal Research Center for Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 460000, Orenburg, Russia, 29, 9 Januarya St.
Ushakov Alexander Sergeyevich, Cand. Sci. (Biol.), Interim Director, Federal Scientific Center «All-Russian Research and Technological Institute of Poultry of the Russian Academy of Sciences», 141311, Московскаяобл., г. СергиевПосад, ул. Птицеградская, 10, e-mail: email@example.com
Nurzhanov Baer Serekpaevich, Cand. Sci. (Agr.),SeniorResearcher, Department of Agricultural Animals Nutrition and Fodder Technology named after S.G. Leushin, Federal Research Center for Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 460000, Orenburg, Russia, 29, 9 Januarya St., e-mail: firstname.lastname@example.org
Rysayev Albert Farkhitdinovich, Cand. Sci. (Biol.),Researcher,Department of Agricultural Animals Nutrition and Fodder Technology named after S.G. Leushin, Federal Research Center for Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 460000, Orenburg, Russia, 29, 9 Januarya St.
Rakhmatullin Shamil Gafiullovich, Cand. Sci. (Biol.),SeniorResearcher,Department of Agricultural Animals Nutrition and Fodder Technology named after S.G. Leushin, Federal Research Center for Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 460000, Orenburg, Russia, 29, 9 Januarya St., e-mail: email@example.com
Ryabov Nikolai Ivanovich, Dr. Sci. (Agr.),Leading Researcher, Department for Beef Cattle Technology and Beef Production, Federal Research Center for Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 460000, Orenburg, Russia, 29, 9 Januarya St.,тел.: 8(3532)43-46-78
Received: 3 June 2019; Accepted: 17 June 2019; Published: 28 June 2019