Bovine Flashcards
(68 cards)
Name the three parapoxviruses. Which of these are zoonotic?
Contagious ecthyma of sheep and goats
Bovine papillary stomatitis
Pseudocowpox
ALL of the above
What signs might help differentiate bovine papular stomatitis from BVD in a calf?
Lack of GI signs
More significant oral lesions
Lice have ______ legs, while ticks and mites have ______ legs
6; 8
What kind of neoplasia causes “cancer eye”?
T/F: Cancer eye is attributable to sun exposure and can be prevented with sunscreen.
SCC
False - Genetic heritable component in addition to sunlight, pigmentation, and nutrition
You see a raise bump with a hole on the back of your cow. What is this? With what and when can we treat?
Hypoderma larvae
Treat with maclacs or organophosphate in the early fall
What is meant by “rumen drinking”?
Esophageal groove dysfunction leading to milk entering rumen and undergoing fermentation
Leads to rumen acidosis - mucosal inflammation of rumen, parakeratosis of rumen epithelium, white and sticky feces
Which test is the most sensitive and specific for detecting BLV in a herd =?
ELISA to detect antibodies to BLV
Describe primary photosensitization
Photodynamic agents are absorbed from GIT
(St. John’s wort, buckwheat, bishop’s weed, spring parsley)
Describe secondary photosensitization
Liver’s excretion of phylloerythrin is impaired d/t liver damage
Ex. Aflatoxins cause liver damage and liver can no longer excrete phylloerythrin
What is mucosal disease?
Severe form of BVD
Occurs when animal born with non-CPE is superinfected with CPE or the virus transforms into CPE
Severe ulcerations form throughout GIT and can result in death
How many teeth in cows, sheep, and goats? What is the dental formula?
32
0/4, 0/0, 3/3, 3/3
What causes ARDS in cattle?
Acute Respiratory Distress Syndrome
Transition to lush pasture and ingestion of L-tryptophan that is converted to 3MI
3MI is pneumotoxic and causes pulmonary edema
What causes ARDS in cattle?
Acute Respiratory Distress Syndrome
Transition to lush pasture and ingestion of L-tryptophan that is converted to 3MI
3MI is pneumotoxic and causes pulmonary edema
normal rumen pH
6.2-7
normal rumen pH
6.2-7
Holding layer for right paramedial incision
External sheath of the rectus abdominus muscle
What is postparturient hemoglobinuria?
Phosphorus levels less than 2mg/dL resulting in hemolysis in lactating cows
A lactating cow is diagnosed with mastitis and the organism is identified as Mycoplasma bovis. What do you recommend?
Culling
Very poor response to treatment and very contagious
Other forms of mastitis respond to frequent milking, anti-inflammatories, and antibiotics
What is the most common arrhythmia in cattle?
Atrial fibrillation - often secondary to GI or electrolyte abnormalities
What effect does gossypol have on calves? What about adults?
Calves - cardiotoxin
Adults - sterility in bulls, decreased conception in cows
How does moldy sweet clover result in coagulopathy?
Inhibits vitamin K
T/F: meat from cattle with lymphoma can be processed for human consumption
False - cannot be used, recommended to euthanize
In an animal that has nitrate poisoning, what would you expect their gums to look like? Why?
Chocolate brown
Nitrates convert hemoglobin to methemoglobin which cannot bind or transport oxygen
Placentomes are palpable between _______days
75-90
Reach half dollar coin size at 150d
