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)

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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 № 08 (162) 2017

Биология и биотехнологии

Донник И. М. доктор биологических наук, профессор, академик Россельхозакадемии, ректор Уральский государственный аграрный университет

Быкова О. А. доктор сельскохозяйственных наук, доцент, начальник управления по научно-исследовательской работе Уральский государственный аграрный университет

Таирова А.Р. доктор биологических наук, профессор, заведующая кафедрой Уральская государственная академия ветеринарной медицины

Шарифьянова В. Р. старший преподаватель Южно-Уральский государственный аграрный университет

МЕЩЕРЯКОВА Г. В. кандидат биологических наук, доцент Южно-Уральский государственный аграрный университет

УДК:636.237.23:629.1

ESTIMATION OF PLASTIC RESOURCES OF THE ORGANISM OF HEIFERS OF THE EARLY POSTNATAL DEVELOPMENT PERIOD

 Adaptationof organisms to inadequate environmental conditions is one of the mostimportant and unsolved problems for both biology and veterinary medicine. Itssolution is possible only on the basis of deep understanding of the naturalmechanisms of resistance to adverse environmental factors. The article presentsdata on the study of the protein blood spectrum of the calves of the earlypostnatal period of development in the conditions of the technogenicagroecosphere. It was established that the concentration of total protein inthe blood of the calves during the entire observed period varied slowly and waswithin the lower values ​​of the physiological norm. An analogous regularity ischaracteristic for the dynamics of albumins – proteins, which carry outtransport and construction functions. The level of this protein fractionthroughout the experimental period increased gradually and was also within thelower limits of the physiological norm. The established nature of the contentof albumin fractions indicates that albumins in the body of the calf are intensivelyconsumed as a result of the activation of body reserves. Analysis of thedynamics of the globulin fraction revealed that the concentration of globulinsdecreased by 28,95–30,9 % (p < 0.01) and by the end of the experiment(3-month old age) increased by 37,02 % (p < 0.01) in the comparison with thebaseline. The activity of aspartate aminotransferase in the studied heifers variedfrom 1329,13 nkat/l (10 days old) to 1382,98 nkat/l at the norm of 483,0–1317,0nkat/l. Against this background the alanine aminotransferase activity graduallyincreased during the entire experimental period from 435.39 nkat/l (10 daysold) to 474.53 nkat/l (30 months old) at reference values, equal to 233.0–650.0nkat/l. Revealed changes in the protein status of the female calves show thatthe delay in the biosynthesis of proteins that perform the function ofimmunobiological resistance in the organism of the heifers of the early periodof postnatal development leads to the involvement of amino acids in indirectdeamination and reamination.


Keywords:

heifers, blood, heavy metals, adaptive possibilities, technogenic agroecosphere.


References:

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