Question:

How much time should be allowed to keep a dairy cow and buffalo in a standing posture immediately after milking?

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Teat canal closure time \(\approx\) 30 minutes.
Keeping animals standing for 30-35 minutes is one of the most cost-effective management practices for preventing environmental mastitis.
  • 5-10 minute
  • 75 minute
  • 60-65 minute
  • 30-35 minute
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The Correct Option is D

Solution and Explanation

Step 1: Understanding the Concept:
During milking, the physical action of milk withdrawal dilates the teat canal and relaxes the teat sphincter muscle. It takes some time for this physiological barrier to close completely.

Step 3: Detailed Explanation:

1. Immediately after milking, the teat sphincter muscle remains relaxed, and the teat canal stays open for approximately 30 to 40 minutes.
2. If the animal lies down on a contaminated floor or pasture during this time, environmental pathogens can easily enter the open teat canal, leading to mastitis.
3. Therefore, animals must be kept standing for at least 30-35 minutes after milking.
4. Farmers usually achieve this by offering fresh, palatable feed or green fodder immediately after milking, enticing the animals to remain standing while eating.

Step 4: Final Answer

The correct option is (D).
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