COZMA V. Seroprevalence of Neospora caninum in cows with reproductive failure in center and northwest of Romania

Abstract. The purposes of this study were to demonstrate the presence of IgG type antibodies against Neospora caninum and to establish the prevalence of the infection in reproductively challenged bovines from five counties in Central and Northwestern Romania. One hundred and ninety three blood samples have been collected in the direction of detecting anti-N. caninum antibodies using indirect ELISA testing. The cattle were raised in two different breeding systems and their reproductive problems varied from multiple inseminations to abortions in different stages of gestation. The cattle originated from different raising systems and varied in age and breed. The overall seroprevalence that we obtained reached the value of 55.95% (95% CI 48.7%-63.1%) and was different from county to county

Investigations on compensated ferrimagnetism in the Mn2Co0.5V0.5Al Heusler alloy

International audienc

Séroprévalence de Neospora caninum chez le bétail laitier dans le centre et le nord-ouest de la Roumanie

Neosporosis is a disease that mainly affects cattle in both dairy and beef herds. The main definitive host of this parasite is the dog. Since 1984 and its first description a large number of data were published worldwide on this parasite. In Romania, the research regarding this parasite is limited. The purpose of this study was to determine the seroprevalence of Neospora caninum infection in dairy cattle from six regions in north-western Romania and to evaluate the intensity of infection in different animals groups. A total number of 901 samples (862 sera from adult cows and 39 sera from calves) were collected from dairy farms and were screened for the presence of specific IgG anti-bodies using an enzyme-linked immunosorbent assay (ELISA). The overall seroprevalence for neosporosis was 34.6%. In adult cows and calves seroprevalences reached 34.8% (300/862) and 30.8% for calves (12/39) respectively. In cattle which had previously aborted, seroprevalence was 40.9%. These results indicate that N. caninum infection is widespread among animals reared in dairy systems from Romania and a program for farmer training and a strategy for reducing the economic impact of the disease are needed

Half-metallic compensated ferrimagnetism in the Mn-Co-V-Al Heusler alloys

International audienc

Structural, electronic and magnetic properties of the Mn 54−x Al 46 Ti x (x = 2; 4) alloys

International audienc

Characterization of host-parasite interactions during the experimental Trichinella spiralis infection in pigs

Abstract The aim of the present experiment was to assess the clinical, haematological, biochemical and immunological responses of pigs experimentally infected with Trichinella spiralis. One group of 6 pigs was infected with 1500 larvae/kg body weight and one group of 7, was maintained as control. The highest larval density was in the diaphragm (504.3 ± 8.2). During the experimental T. spiralis infection in pigs, increased values of total granulocyte number, eosinophils, blood glucose, K+ concentration, CK, ALT, AST and ALP were registered in different stages of infection. A slight increase of the phagocytic activity was registered 14 days p.i., in the infected group. Significantly increased values in lymphocyte activity, in infected group, was observed 30 and 60 days p.i. comparative with control. The specific IgG antibodies were detectable by ELISA at 14 days p.i. The results obtained in this study provide a better understanding about complete interactions occurring during Trichinella infection in pigs.</jats:p