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The objective of this study was to evaluate if Moraxella bovoculi was associated with Infectious Bovine Keratoconjunctivitis (IBK) using a corneal scarification model in calves. A 3-arm single-eye block-randomized and blinded challenge study was designed as follows: corneal scarification only, corneal scarification and inoculation with M. bovoculi (ATCC(More)
Piglets reared in swine production in the USA undergo painful procedures that include castration, tail docking, teeth clipping, and identification with ear notching or tagging. These procedures are usually performed without pain mitigation. The objective of this project was to develop recommendations for pain mitigation in 1- to 28-day-old piglets(More)
Infectious bovine keratoconjunctivitis (IBK) is a common ocular disease in cattle, associated with a 6.8 to 13.6 kg decrease in weaning weight. Antibiotic therapy is available but it is unclear if pain mitigation as an adjunct therapy would reduce the weight loss associated with IBK. Before assessing the impact of pain mitigation therapies, it is first(More)
Bovine herpesvirus 1 (BoHV-1) is 1 of several viruses considered to be causal agents of bovine abortion. The current retrospective study examined data on bovine abortion submissions from 5 veterinary diagnostic laboratories from 2000 to 2011. The objective of the study was to describe prevalence of BoHV-1-associated abortion in submissions at veterinary(More)
OBJECTIVE To describe Schirmer tear test I and rebound tonometry findings in healthy bovine calves. ANIMALS STUDIED Thirty-three clinically normal dairy breed calves of mean (SD) 11 (1.1) weeks (range, 9.3-13.3 weeks) of age were evaluated. PROCEDURES A Schirmer tear test I was performed on each eye followed by tonometry, using a TonoVet(®) without(More)
AIM To develop a multiplex real-time PCR assay for the detection and differentiation of Moraxella bovis (M. bovis), M. bovoculi and M. ovis. METHODS AND RESULTS The multiplex real-time PCR assay was validated on three reference strains, 57 pure culture isolates and 45 lacrimal swab samples. All reference strains were identified correctly with no(More)
BACKGROUND A randomized, masked, 2-arm parallel trial was conducted to assess the efficacy of a Moraxella bovis (M. bovis) autogenous vaccine to prevent naturally occurring infectious bovine keratoconjunctivis (IBK) in beef calves. HYPOTHESIS The null hypothesis was that treatment group was not associated with either risk of IBK or last observed weight.(More)
OBJECTIVE To evaluate corneal sensitivity as measured by the corneal touch threshold in healthy bovine calves. ANIMALS STUDIED Twelve clinically normal male calves with predominantly Holstein genetics and a median age of 76.5 days (range, 67-92 days). PROCEDURES Corneal touch threshold (CTT) of the central cornea was measured in both eyes of each calf(More)
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