Caprine

Question 1

Mycoplasma mycoides ssp. mycoides

Answer 1

• Mycoplasma mycoides subsp. mycoides of the large-colony (LC) type is responsible for major problems in the US goat population.
• It can also cause acute septicemia and CNS signs in kids.
• Carrier goats maintain the infection in a herd, where it is transmitted to kids through milk or colostrum
• Kids infected with Mycoplasma mycoides mycoides (large colony variant) or other Mycoplasma spp may show severe lameness with multiple hot swollen joints, weight loss, pyrexia, and poor coats
• Adult does with Mycoplasma infection may have mastitis and polyarthritis

Question 2

Rumen Acidosis in Goats

Answer 2

• Excessive consumption of grain or other readily fermentable carbohydrate will lead to replication of Streptococcus bovis and other gram positive bacteria in the rumen at first, lowering the rumen pH precipitously to below 4.5 and causing an increase in lactic acid.
• Lactobacilli will subsequently multiply due to the favorable conditions created.
• The goat cannot metabolize the D-lactic acid made by bacteria (mammals can only process L -Lactic acid which they produce themselves), and a systemic lactic acidosis results.
• Clinical signs include rapid HR, depression, anorexia, fluid-filled rumen, scleral injection, staggering, diarrhea after 24 hours, and damage to rumen mucosa.

Question 3

Beta mannosidosis

Answer 3

• Beta mannosidosis is a disorder of Anglo-Nubian goats that causes fatal neurological symptoms in newborns and is an autosomal recessive mode of inheritance.
• Beta mannosidosis is an autosomal recessive lysosomal storage disease of goats.
• The disease affects kids of the Nubian breed and is identified by intention tremors and difficulty or inability of newborns to stand