Flashcards in large animal Deck (11):
What breeds most common are affected by milk allergy?
Jerseys and Guernseys - becomes sensitized to casein in own milk
Milk allergy is associated with:
milk retention, unusual en- gorgement of the udder, and occasionally variable degrees of respiratory distress.
Histopathology findings of alopecia areata
What factors are associated with bovine exfoliative erythroderma?
colostrum; erythema and vesicles on muzzle from birth
Insect hypersensitivity in bovine:
presumed hypersensitivity to salivary allergens of Culicoides spp.; seasonal (spring to fall); severe pruritic dermatitis of face, forehead, pinnae, and neck
signs of caprine PF:
more-or-less bilaterally symmetric and usually begin on the ventrum and perineum. The condition becomes widespread, and is often very severe on the face and pinnae. Initial lesions are pustules or vesicles. Erosions, oozing, crusts, scales, and alopecia are the dominant lesions found. Pruritus is mild to severe. Occasional animals are system- ically ill
insect hypersensitivity in caprine
presumed hypersensitivity to Culicoides spp. salivary antigens; seasonal (spring to summer); pruritic dermatitis, especially dorsum
Culicoides hypersensitivity in ovine:
a pruritic, erythematous, crusted, excoriated, lichenified dermatitis is most commonly present on the ventral chest and abdomen, udder, and teats. The pinnae, periocular area, legs, and flanks are occasionally affected. Typically only one or a few animals in a flock are affected.
Stomoxys calcitrans sensitivity in ovine:
Stomoxys hypersensitivity, the dermatitis is present on the rump, back, shoulders, and bridge of the nose, and up to 80% of a flock may be affected
distribution of lesions for atopic ovine:
face, pinnae, axillae, ventral abdomen and thorax, udder, cau- domedial thighs, and perineum