Agrarian
Bulletin
of the Urals

Russian Journal of Agricultural Research

The publication is registered by the Ministry of the Russian Federation
for Affairs of the Press, Television and Radio Broadcasting and Mass Communication Media.
Registration certificate: PI number 77-12831 on May 31, 2002
Subscription index in catalog «Russian Press» - 16356
ISSN 1997 - 4868 (Print)

The Journal is included in the list of the leading peer-reviewed scientific journals and publications, which should be published by the main results of theses for the degree of doctor and Ph.D.
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Journal is included in the list of VAK (from 25.09.2017), No. 291

ISSN 2307-0005 (Online)
Key title: Agrarnyj vestnik Urala (Online)
Abbreviated key title: Agrar. vestn. Urala (Online)

Аграрный вестник Урала № 11 (178) 2018

Биология и биотехнологии

Тарабукина Н. П. доктор ветеринарных наук, профессор Якутский научно-исследовательский институт сельского хозяйства

Степанова А. М. кандидат ветеринарных наук, старший научный сотрудник Якутский научно-исследовательский институт сельского хозяйства им. М. Г. Сафронова

Скрябина М. П. кандидат ветеринарных наук, ведущий научный сотрудник Якутский научно-исследовательский институт сельского хозяйства им. М. Г. Сафронова

Парникова С. И. кандидат ветеринарных наук, старший научный сотрудник Якутский научно-исследовательский институт сельского хозяйства им. М. Г. Сафронова

УДК:619.579.636.571

MICROBIOLOGICAL SAFETY OF EGG PRODUCTS WHEN USING PROBIOTIC NORD-BACT

Probiotic Nord-Bact, developed on the basis of bacteria Bacillussubtilis strains to improve the quality of egg products. Production tests werecarried out in the Yakut poultry farm in the workshop number 19 on 30 thousandlaying hens from the age of 45–46 weeks of the Rhodonite-3 cross. For theproduction tests, 3 groups of analogues of laying hens with 10 thousand animalseach were formulated: 2 experienced, 1 control. According to the results of theresearch probiotic it was revealed that after the use of the probiotic drugNord-Bact in both experimental groups, neither in the contents nor in theeggshell, the presense of conditionally pathogenic, pathogenic microorganisms,in contrast to the control group, which has a higher the content of mesophilicaerobic facultative anaerobic microorganism, the presease of conditionally pathogenicmicroorganisms Protea, toxigenic fungi Aspergillus spp., as well as potential lactoseenterepathogenic atelnyh Echerichia. Therefore after the use probioticNord-Bact, microbiological safety of egg products in ensured. The results ofbiochemical studies after the use of probiotic Nord-Bact show an increase in contentof calcium, magnesium in eggshells by 31 %, phosphorus by 23 %,compared with the control. A significant increase in iron and vitamin A eggs inthe yolk by 12 %, sodium and, magnesium by 10 %, potassium by 6 %,and calcium by 1,5 % was noted. Thus, after the application of probioticNord-Bact in the yolk, protein, shell, the content of vital minerals andvitamins significantly increases. The use probiotic Nord-Bact not only had apositive effect on microbiological, biochemical indicators of eggs, but alsoreduced egg production (by 1,4 %), contamination (4,7 %)), increasedproductivity (4 %), compared to similar workshop, where did not use thedrug.


Keywords:

laying hens, probiotic treatment, bacterial strains of Bacillus subtilis, intestinal microflora and eggs, conditionally pathogenic, normal flora, product quality.


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