A. M. Ezhkova, I. A. Yapparov, V. O. Ezhkov, A. K. Yapparov, R. N. Fayzrakhmanov
Tatar Research Institute of Agrochemistry and Soil Science – autonomous structural subdivision of the Federal Research Center of the Kazan Scientific Center of the RAS, ul. Orenburgskii trakt, 20 а, Kazan’, 420059, Russian Federation
Abstract. It was studied the meat production of broiler chickens, received fodder sapropel in the optimal dose and different doses of nanostructured sapropel. The test was carried out in the Republic of Tatarstan in 2014–2017. Seven groups of chickens at the age of 10 days were formed, 120 head in each group. Birds were kept in cages. Chickens from group I (control) received complete feed in the amount of 4165 g/head. Chicks from group II received complete feed + fodder sapropel in the dose of 3.0% to the dry matter of the diet. Broilers from groups III, IV, V, VI and VII received nanostructured sapropel in the doses of 3.0, 2.4, 1.8, 1.2 and 0.6% to the dry matter of the diet. Additives were fed for 30 days until the technological slaughter of broilers for meat. The relative gain in the weight of poultry from test groups was higher by 1.1–8.2% in the control (2190.0 g). The weight of gutted carcass exceeded the mass of the control samples (1545.5 g) by 14.5–175.1 g. The slaughter yield of experimental broilers was higher by 1.8–2.1% than that of control birds (70.5%) except for group III, where it was lower by 0.5%. In the meat of experimental broilers, the content of essential amino acids increased by 1.7–8.7% and that of nonessential amino acids – by 2.4–12.5%, with values in the control of 27.68 and 31.67 g/kg, respectively. The ratio of essential and nonessential amino acids in the meat of the experimental bird was 1.15–1.18, with the control index of 1.14. The protein-quality index of meat increased to 4.56–4.64, in comparison with the control (4.51). Economic efficiency for additional products received for 1 ruble of costs was 2.1 rubles when applying sapropel in the dose of 3.0%; and 1.1, 2.4, 3.5, 3.8 and 4.2 rubles, when using nanostructured sapropel in the doses of 3.0, 2.8, 1.8, 1.2 and 0.6%, respectively.
Keywords: broiler chickens; fodder additive; sapropel; nanoparticles; live weight; meat production; physical, chemical and microbiological indicators; amino acid composition of meat.
Author Details: A. M. Ezhkova, D. Sc. (Biol.), head of division (е-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); I. A. Yapparov, D. Sc. (Biol.), director; V. O. Ezhkov, D. Sc. (Vet.), head of division; A. K. Yapparov, D. Sc. (Agr.), scientific supervisor; R. N. Fayzrakhmanov, Cand. Sc. (Agr.), research fellow.
For citation: Meat Production and Meat Quality of Broiler Chickens when Nanostructured Sapropel Is Included in the Diet. Ezhkova A. M., Yapparov I. A., Ezhkov V. O., Yapparov A. K., Fayzrakhmanov R. N. Dostizheniya nauki i tekhniki APK. 2018. Vol. 32. No. 7. Pp. 59–64 (in Russ.). DOI: 10.24411/0235-2451-2018-10714.