Topics: Animal Refresher, Dairy Science

Ideal Vacuum of Milking Machine for Cattle

Question

Ideal vacuum of milking machine in case of cattle is:

Select an answer

Ideal vacuum of milking machine in case of cattle is:

  1. 352 mmHg — Correct Answer
  2. 400 mmHg
  3. 450 mmHg
  4. 500 mmHg
Explanation:
Correct Answer: 352 mmHg

The ideal vacuum for milking machine in case of cattle is 352 mmHg. For buffalo, the ideal vacuum is 400 mmHg.

Milking Machine Vacuum Settings
  • Cattle: 352 mmHg
  • Buffalo: 400 mmHg (higher vacuum needed due to narrower teat canal)
  • General recommendation: 10–15 inches of mercury
Why Different Vacuums?
  • Buffaloes have a tighter teat sphincter and smaller teat orifice compared to cattle.
  • Higher vacuum (400 mmHg) is required to effectively open the teat canal and allow milk flow in buffaloes.
Complete Milking Machine Parameters Summary
  • Pulsation rate: 60 cycles/min
  • Pulsation ratio: Cattle 60/40; Buffalo 50/50
  • Ideal vacuum: Cattle 352 mmHg; Buffalo 400 mmHg
  • Minimum herd size: 20 animals

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This multiple choice question is from Animal Refresher, Dairy Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.

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