Bovine Flashcards
What happens if you give an 8 month pregnant cow anti-inflammatory corticosteroids systemically?
Can lead to premature birth because cows are susceptible to corticosteroid induced parturition
What should you feel on palpation of a cow if the cow has a macerated fetus and no signs of pregnancy?
Crepitus
What are characteristics of an LDA?
Hear a ping on the left side with variable pitch using stimultaneous auscultation and percussion from the last rib and diagonally downward to the 8th rib. It is most commonly seen right after parturition.
What is hardware disease?
CS - stiff gait or xiphoid pain will be present
What is right displaced abomasum?
Much less common than LDA, would be on the right side of
Where would you hear free gas in the rumen of a cow?
From the hip to the 8th rib and be a monotone ping.
What is the most common congential heart defect in large animals?
Ventricular septal defect
Where does Gossypol come from and what toxicity does it cause?
Natural constituent in cotton, acts as an insecticide and protects the plant. The polyphenol binds to iron in cell constituents. It may cause kidney damage, inhibit dehydrogenase enzymes, and uncouple phosphorylation in the cell.
What vaccine is currently used in Brucella vaccination in cows?
Rb51, only young heifers are vaccinated, brucella is reportable!
What are the main vectors of Moraxella bovis?
Flies are the main vectors for pink eye (Moraxella bovis), the face fly (Musca autumnalis) being the most implicated vectors.
Infectious bovine rhinotracheitis ophthalmic lesions are caused by what virus?
Bovine Herpes Virus 1 - it affects the trigenimal ganglia and becomes latent, when animal is immunosuppressed the virus replicates and causes disease.
How long does it take for a cows uterus to return to its normal size? How long to complete histologic repair?
25-30 days for uterus to go back to normal
Up to 50 days for histologic repair
What is calf diphtheria?
Also called necrotic laryngitis - caused by Fusobacterium necrophorum. CS - seen between 3-18 months of age. Signs are acute, moist painful cough, loud inspiratory stridor, head and neck extended, swelling around the larynx and ozena, episcleral injection. Palpation of the larynx easily elicits a cough with pain and increased stridor.
What are the classical signs of Traumatic pericarditis?
Muffled heart sounds, splashing sounds, and brisket edema
Most commonly affected digits in dairy cattle?
Lateral rear digits
