time to first calving and calving interval in bovine virus diarrhoea virus (bvdv) sero-converted dairy herds in norway.dairy herds in møre and romsdal county, norway (regarded as initially free from the bovine virus diarrhoea virus (bvdv) infection) were studied retrospectively from 1992 to 1996. the herd reproductive performance (time to first calving, calving interval, and number of breeding services) was investigated for a potential effect of bvdv sero-conversion. the herd culling pattern--possibly affecting the above measurements--was included for investigation. two different statistical models were used: th ...200111530192
Pestivirus and alphaherpesvirus infections in Swedish reindeer (Rangifer tarandus tarandus L.).Herding semi-domesticated reindeer has economic and social value for Sami people in the northern territories of Fennoscandia. However, with the intensification of reindeer husbandry, interspecies transmission of pathogens between reindeer and domestic animals may become a problem, especially for countries such as Sweden, Norway, and Finland where pestivirus and alphaherpesvirus have been eradicated in domestic ruminants. This study, which included 1158 Swedish reindeer, showed relatively high pr ...201122078277
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