What is the usual primary route by which bovine mastitis-causing bacteria enter the udder?
Correct answer: A. The teat canal
- A. The teat canal
- B. The carotid artery
- C. The ruminal wall
- D. The nasal passage
Explanation
Most mastitis pathogens enter the mammary gland through the teat canal and then multiply in the udder tissue. The teat canal normally provides an important physical barrier against infection. Blood-borne infection is possible but is not the usual route for common ascending mastitis.
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Covers the recognition, diagnosis, prevention and medical treatment of diseases affecting domestic animals, including infectious, metabolic, nutritional, toxic and organ-system disorders. It links history taking, physical examination, clinical signs, laboratory findings and differential diagnosis with appropriate therapy and herd or flock control.
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