Abstract
The paper deals with the results of assessing the intensity of PCV2 (porcine circovirus type 2) circulation in pigs of different age groups on pig farms in the Russian Federation. Serum samples of 128 pigs of different age groups from two pig farms in the Russian Federation were studied. As a result, specific antibodies to PCV2 were detected that proves virus circulation. Average titer of serum antibodies was 1:2020 for weaning piglets, 40 d.a. (days of age), in prenursery piglets of the age of 20 days - 1:3120; in replacement gilts of the age of 175 days - 1: 5124; in feeding pigs of the age of 180 days - 1:5300. In female pigs, the percentage of seroprevalence was 95 %. With advancing ageing of pigs, the level of antibody titer to PCV2 was increasing that proves the animals were infected after the decrease of colostral antibody level below protective one.
Highlights
Porcine circovirus infection in pigs is widely spread in many countries of the world with the developed commercial pig production, and it causes considerable economical damage conditioned by high morbidity and mortality, decrease in productivity and reproduction properties of the animals [1,2,3]
The aim of the study is to assess the intensity of PCV2 circulation in pigs of different age groups on pig farms in the Russian Federation
With enzyme immunoassay (EIA) method, specific antibodies to PCV2 were detected in serum samples from 88 pigs of different ages
Summary
Porcine circovirus infection in pigs is widely spread in many countries of the world with the developed commercial pig production, and it causes considerable economical damage conditioned by high morbidity and mortality, decrease in productivity and reproduction properties of the animals [1,2,3]. PCV2 should be complex and based on epizootological, clinical, pathoanatomical and laboratory (serologic, microscopic, virologic and molecular genetic) study methods. For PCV2 infection diagnostics, study methods aimed at the detection of an agent and antibodies to it are used. Such methods include different variants of PCR and enzyme immunoassay (EIA) [14]
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