Bleeding disorders in calves

Warm weather contributes to ectoparasite infestations in backyard chickens

“…The dam of the younger calf was a four‐year‐old homebred cow; therefore, vaccination with Pregsure BVD could not be implicated as the underlying problem as this product was withdrawn from the market in 2010, and there was no potential access to an alternative source of colostrum. A relatively small number of calves meeting the case definition of BNP do not have a demonstrable association with bovine viral diarrhoea virus vaccination of the dam 1 . The cause of these cases remains unknown but alloantibody production in the dam is the most likely explanation.…”

“…A relatively small number of calves meeting the case deinition of BNP do not have a demonstrable association with bovine viral diarrhoea virus vaccination of the dam. 1 The cause of these cases remains unknown but alloantibody production in the dam is the most likely explanation.…”

Hepatogenous photosensitisation leading to death in lambs

“…The dam of this calf was born in 2015, and therefore had not received Pregsure BVD vaccine (Pfizer). Cases of BNP unassociated with this vaccine are considered likely to be due to the spontaneous production of alloantibodies 2 . It was advised that the colostrum from this cow should not be fed to any subsequent calves.…”

Chlamydia abortus the most common finding in ovine abortions in early 2019

“…However, there are welldocumented cases that have no association with this vaccination. 2 The cause of these remains unknown but they are likely to be the result of spontaneous alloantibody production.…”

“…The majority of cases of BNP are associated with ingestion of colostrum from cows previously vaccinated with PregSure BVD (Pfizer). However, there are well‐documented cases that have no association with this vaccination 2 . The cause of these remains unknown but they are likely to be the result of spontaneous alloantibody production.…”