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Titolo:
EFFECTS OF INFECTION WITH BOVINE VIRUS DIARRHEA VIRUS ON HEALTH AND REPRODUCTIVE-PERFORMANCE IN 213 DAIRY HERDS IN ONE COUNTY IN SWEDEN
Autore:
NISKANEN R; EMANUELSON U; SUNDBERG J; LARSSON B; ALENIUS S;
Indirizzi:
SWEDISH UNIV AGR SCI,DEPT CATTLE & SHEEP DIS S-75007 UPPSALA SWEDEN SWEDISH UNIV AGR SCI,EPIDEMIOL UNIT S-75007 UPPSALA SWEDEN ASSOC LIVESTOCK BREEDING & PROD DALA GAVLEBORG S-77600 HEDEMORA SWEDEN NATL VET INST,DIV EPIZOOTIOL S-75007 UPPSALA SWEDEN NATL VET INST,DEPT VIROL S-75007 UPPSALA SWEDEN
Titolo Testata:
Preventive veterinary medicine
fascicolo: 3-4, volume: 23, anno: 1995,
pagine: 229 - 237
SICI:
0167-5877(1995)23:3-4<229:EOIWBV>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
MUCOSAL DISEASE VIRUS;
Keywords:
BOVINE VIRUS DIARRHEA VIRUS; BULK TANK MILK; HERD IMMUNITY; HEALTH; REPRODUCTIVE PERFORMANCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
R. Niskanen et al., "EFFECTS OF INFECTION WITH BOVINE VIRUS DIARRHEA VIRUS ON HEALTH AND REPRODUCTIVE-PERFORMANCE IN 213 DAIRY HERDS IN ONE COUNTY IN SWEDEN", Preventive veterinary medicine, 23(3-4), 1995, pp. 229-237

Abstract

Bulk tank milk samples, collected twice with a 1 year interval, from 213 Swedish dairy herds with no vaccination programme against bovine virus diarrhoea virus (BVDV), were tested for antibodies to BVDV using an indirect enzyme-linked immunosorbent assay. The herds were classified into four different BVDV groupings based on changes in the estimated prevalence of BVDV antibody-positive cows in the herds. The estimated mean prevalences of BVDV antibody-positive cows were maintained as >80% in 58 (27.2%) and as <10% in 84 (39.4%) of the herds. A recent introduction of the infection was deemed to have occurred in seven (3.3%)of the herds studied. The BVDV groups were compared with regard to parameters related to disease and fertility at herd level. Relationshipswere assessed using logistic and ordinary linear regression analyses. The risks for clinical mastitis, retained placenta and oestrus-stimulating treatments were higher and the calving intervals were longer in BVDV infected herds, i.e. those herds with an increasing or maintainedhigh prevalence of BVDV antibody-positive cows.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 18:50:13