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 № 02 (132) 2015

Ветеринария

Косинцева Е.А. соискатель, зоотехник по воспроизводству Уральская государственная сельскохозяйственная академия, ЗАО АПК «Белореченский»

УДК:619:618.14-091

PATHOLOGICAL AND HISTOLOGICAL CHANGES IN THE PLACENTA OF COWS SEPARATED AT DIFFERENT TIMES AFTER CALVING

A huge role to establish the causes of neonatal diseases of calves plays normal functioning of the entire placental system a pregnant cow. Therefore, to reduce economic losses on the farm is important as soon as possible to diagnose pathological changes in the placenta. For this purpose we studied histological changes in the placenta 35 cows in two groups: with separated in time and delayed the placenta. Considering studied the relationship between the morphology of the placenta of cows, separated at different times after calving, it is possible already in the first hours of life of the calf to establish the possibility of intrauterine hypoxia, intoxication, exposure to infectious agent born young. During the experiment it was established that in the group of cows histological examination of the placentae, separated in time, identified mainly changes characteristic of physiological aging of the placenta. In the case of detention of the placenta, these changes were atrophic, necrotic nature, revealed a vivid picture of inflammation, indicating the presence of bacterial infection. The paper presents a micrograph made by Leica microscope, confirming revealed changes characteristic of the two study groups.

Keywords:

histological changes, placenta, cows, retention of placenta


References:

1. Drozdova L. I. Pathomorphology of the placental barrier in animals. Ekaterinburg : UrSAU, 2011.

2. Kolchinа A. F. Retention of placenta in animals. Ekaterinburg : UrSAU, 2008. 72 p.

3. Semenovа N. N., Timkin A. C., Stukov A. N. Comparative analysis of the morphological changes in the placenta at

physiological separation and retention of placenta in cows // Agrarian bulletin of the Urals. 2011. № 12–2 (92).


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