Ya. S. Tatarenko
K. I. Skryabin Moscow State Academy of Veterinary Medicine and Biotechnology, ul. Akademika Skryabina, 23, Moskva, 109472, Russian Federation
Abstract. The aim of this study was to determine the efficacy of a preparation containing various bacteriophages for controlling the dissemination of infections in the process of quail breading. In experiments using the analog approach, three groups of clinically healthy broiler quails of the Scandinavian breed aged 45 days, 100 heads each, were formed. The animals were kept in cages on a dry complete feed. The Fagovet Avi drug was administered by the group method from vacuum drinkers at a dose of 3 ml per 7.4 l of water. The preparation was given to the birds in experimental group 1 one single time, while those in experimental group 2 received Fagovet Avi three times with an interval of 48 hours. Birds in the control group did not receive Fagovet Avi. The observations were being conducted for 7 days. Before processing, the average body weight of the quails was measured to be 382.4 g, 382.3 g and 382.7 g in the groups 1, 2 and control, respectively. The analysis with respect to pathogenic bacteria has revealed dominant species to be Essherichia coli (mostly in the muscular stomach and intestines), Proteus mirabilis (in the gut and liver), Klebsiella pneumoniae (in the lungs and muscular stomach), Streptococcus gallinarum. Prior to the administration of the preparation, the sanitary indicators of the poultry meat did not correspond to the norm in all the studied groups. Thus, the quantity of mesophilic aerobic and facultative anaerobic microorganisms was up to 5.1*10E9 СFU/g, while that of the bacillus group reached 1.2*10E8 CFU/g. The triple administration of Fagovet Avi ensured both a reduced circulation of the infectious organisms and a reduced contamination of the quail meat: the quantity of mesophilic aerobic and facultative anaerobic microorganisms was up to (2.0 ± 0.02)* 10E2 CFU/g, while that of the bacillus group was (1.1 ± 0.02)*10E2 CFU/g. In addition, a decrease of 5.4 roubles per 1 head in terms of economic expenses was achieved in the experimental groups compared to the control group. At the end of the experiment, the body weight of the quails in the experimental groups was significantly higher than that in the control group: experimental 1 – 398.5 g, experimental 2 – 391.6 g, the control group – 384.5 g.
Keywords: quails, bacterial contamination, bacteriophage-based products, microorganism carriage control.
Author Details: Ya. S. Tatarenko applicant (е-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.).
For citation: Tatarenko Ya. S. The Use of Bacteriophage-Based Products for the Control of Microorganism Carriage in Quails. Dostizheniya nauki i tekhniki APK. 2019. Vol. 33. No. 5. Pp. 59–61 (in Russ.). DOI: 10.24411/0235-2451-2019-10514.