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Titolo:
Neospora caninum and bovine virus diarrhoea virus infections in Swedish dairy cows in relation to abortion
Autore:
Bjorkman, C; Alenius, S; Emanuelsson, U; Uggla, A;
Indirizzi:
Swedish Univ Agr Sci, Dept Ruminant Med & Vet Epidemiol, SE-75007 Uppsala,Sweden Swedish Univ Agr Sci Uppsala Sweden SE-75007 ol, SE-75007 Uppsala,Sweden Epi Lys, SE-75597 Uppsala, Sweden Epi Lys Uppsala Sweden SE-75597Epi Lys, SE-75597 Uppsala, Sweden Natl Vet Inst, Dept Swine & Ruminant Dis, SE-75007 Uppsala, Sweden Natl Vet Inst Uppsala Sweden SE-75007 nant Dis, SE-75007 Uppsala, Sweden Swedish Univ Agr Sci, SE-75189 Uppsala, Sweden Swedish Univ Agr Sci Uppsala Sweden SE-75189 i, SE-75189 Uppsala, Sweden Natl Vet Inst, Dept Parasitol, SWEPAR, SE-75189 Uppsala, Sweden Natl Vet Inst Uppsala Sweden SE-75189 , SWEPAR, SE-75189 Uppsala, Sweden
Titolo Testata:
VETERINARY JOURNAL
fascicolo: 2, volume: 159, anno: 2000,
pagine: 201 - 206
SICI:
1090-0233(200003)159:2<201:NCABVD>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANTIBODIES; CATTLE; MILK; RISK;
Keywords:
Neospora caninum; bovine virus diarrhoea; cattle; prevalence; abortion;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Bjorkman, C Swedish Univ Agr Sci, Dept Ruminant Med & Vet Epidemiol, Box 7019, SE-75007 Uppsala, Sweden Swedish Univ Agr Sci Box 7019 Uppsala SwedenSE-75007 Sweden
Citazione:
C. Bjorkman et al., "Neospora caninum and bovine virus diarrhoea virus infections in Swedish dairy cows in relation to abortion", VET J, 159(2), 2000, pp. 201-206

Abstract

The protozoan parasite Neospora caninum and bovine virus diarrhoea virus (BVDV) are recognized as important causes of bovine abortion and congenital disease worldwide. In this study, serological investigations were performedto estimate the prevalence of N. caninum infection in Swedish dairy cattle, to assess to what extent it may affect abortion rates, and to determine possible effects of coinfection with BVDV. The overall N. caninum seroprevalence in Swedish dairy cows was estimated at 2% (16/780), and the BVDV seroprevalence was 32% (249/780). Among aborting cows from herds with abortion problems, 7% (26/378) had antibodies to N. caninum and 42% (153/378) to BVDV. Seventeen of the N. caninum positive animals also had antibodies to BVDV. There was a statistically significant (P = 0.013) association between presence of antibodies to N. caninum and BVDV. In a case-control study comprising sera from cows in herds without recognized abortion problems, 6% (5/89) and 1% (1/89) of sera from aborting and non-aborting cows, respectively, had antibodies to N. caninum. Two of the N. caninum seropositive aborting cows also had antibodies to BVDV. These results confirm that N. caninum infection is associated with bovine abortion in Sweden and also indicate that there might be concurrent effects of N. caninum and BVDV. It is concluded thatSwedish dairy cows have a low prevalence of N. caninum infection which is favourable in relation to possible future control programmes. (C) 2000 Harcourt Publishers Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 15:28:12