A. V. Miftakhutdinov, E. R. Sayfulmulukov, E. A. Nogovitsina, E. A. Miftakhutdinova
South Ural State Agrarian University, ul. Gagarina, 13, Troitsk, Chelyabinskaya obl., 457100, Russian Federation
Abstract. The purpose of the study was to assess how the correction of pre-slaughter stress with PIK-Antistress feed additive (Russia) affects the quality and safety of broiler chicken meat. The experiment was conducted in 2018 on broiler chickens of the final cross hybrid Arbor Acres in a poultry farm where chickens were kept under floor conditions. The birds from the control group received the conventional diet; the birds from the experimental groups were fed with a mixture of mixed fodder and PIK-Antistress 5 days before slaughter. For the first group, the feeding rate was 1269 g/t; for the second group, it was 1693 g/t. The chickens were slaughtered on 38th day. Chicken carcasses were evaluated for injuries and defects (n = 50); the meat was evaluated according to veterinary and sanitary indicators and chemical composition (n = 9). The broiler meat of chickens from the experimental and control groups was fresh and safe in terms of copper, iron, zinc, nickel, cadmium, and lead content. The concentration of essential trace elements (zinc, copper, manganese) in the meat of broiler chickens from the experimental groups tended to increase. In the first and second experimental groups, the moisture content in the greater pectoralis muscle of the chicken was significantly lower compared with the control group (75.97%) – by 0.91% and 0.87%, respectively. The moisture content in red meat in the first and second experimental groups was higher compared with the control group (72.83%) – by 0.55 and 0.78%, respectively. The fat content in red meat in the second experimental group decreased by 0.42% compared with the control group (8.64%). The protein content in the greater pectoralis muscle in the first experimental group was 0.27% higher compared with the control group (22.34%); the protein content in red meat in the chickens from the second experimental group was lower by 0.36% compared with the control group (17.65%). The ash content in the pectoralis minor muscle in the chickens from the first experimental group increased by 0.07% compared with the control group (1.28%). In the experimental groups, the number of bird injuries and carcass defects tended to decrease.
Keywords: industrial stress; feed additive; poultry slaughter; broiler chicken meat; carcass defects; meat quality; meat safety.
Author Details: A. V. Miftakhutdinov, D. Sc. (Biol.), prof. (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); E. R. Sayfulmulukov, Cand. Sc. (Vet.), assoc. prof.; E. A. Nogovitsina, Cand. Sc. (Biol.), assoc. prof.; E. A. Miftakhutdinova, post graduate student.
For citation: Miftakhutdinov AV, Sayfulmulukov ER, Nogovitsina EA, et al. [Quality and safety of broiler meat and the correction of pre-slaughter stress]. Dostizheniya nauki i tekhniki APK. 2020;34(3):71-4. Russian. doi: 10.24411/0235-2451-2020-10314.