O. A. Bagno1, S. A. Shevchenko2, A. I. Shevchenko2, 3, O. N. Prokhorov1, A. S. Berezina1
1Kuzbass State Agricultural Academy, ul. Markovtseva, 5, Kemerovo, 650056, Russian Federation
2Gorno-Altaisk State University, ul. Lenkina, 1, Gorno-Altaisk, Respublika Altai, 649000, Russian Federation
3Federal Altai Scientific Center of Agrobiotechnologies, Nauchnyi gorodok, 35, Barnaul, 656910, Russian Federation
Abstract. The study aimed to evaluate the effectiveness of the use of a water-ethanol extract of brown mustard (Brassica juncea) in feeding of laying hens. The scientific and economic experiment was carried out for 6 months on hens of the Hisex White cross under the conditions of an industrial poultry farm in Kuzbass. To conduct the research by the group-analogue method considering body weight, age, egg-laying capacity, six groups were formed – one control and five experimental, 50 animals each. During the whole experiment, the hens of the control group were fed a complete feed according to the egg-laying phase; the birds of the experimental groups were additionally given an extract of brown mustard seeds at doses of 10, 30, 50, 70, 90 mg/kg of feed. When laying hens were fed with the brown mustard extract, the European efficiency coefficient was higher – by 1.1-3.0 units, the egg production efficiency index – by 2.5-12.6 units due to an increase in egg-laying capacity per average laying hen by 4.8-13.1%, egg production intensity – by 3.95-10.6%, the safety of laying hens – by 2.0- 6.0%, a decrease in feed consumption by 10 eggs – by 2.6- 13.1%, per 1 kg of egg mass – by 6.1- 19.1%, compared with the control. There were less cracked-shell eggs or broken ones in the experimental groups than in the control, by 0.08-0.25%. A significant decrease in the relative content of the egg yolk of hens of the 4th and 5th experimental groups, compared with the control, was established, respectively, by 2.3% (p<0.05) and 2.9% (p<0.05), an increase protein : yolk ratio in the 5th experimental group – by 15.2% (p<0.05). Feeding laying hens of brown mustard extract in the studied doses did not have a negative effect on the morphological parameters of the birds’ blood, which were within the reference range.
Keywords: extract; brown mustard; laying hens; egg-laying capacity; egg weight; feed conversion; safety; egg morphological composition; egg chemical composition; blood morphological parameters.
Author Details: O. A. Bagno, Cand. Sc. (Agr.), assoc. prof. (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); S. A. Shevchenko, D. Sc. (Agr.), prof.; A. I. Shevchenko, D. Sc. (Biol.), prof.; O. N. Prokhorov, Cand. Sc. (Agr.), assoc. prof.; A. S. Berezina, head of center.
For citation: Bagno OA, Shevchenko SA, Shevchenko AI, et al. Characteristics of egg-laying capacity and morphological indicators of laying hens’ blood when feeding brown mustard Dostizheniya nauki i tekhniki APK. 2022;36(6):66-70. Russian. doi: 10.53859/02352451_2022_36_6_66.