Method to Obtain Residual Milk

Residual milk is obtained only after:

Correct Answer: Both Oxytocin injection and Re-milking

Residual milk is the amount of milk left in the udder after normal milking. It can be obtained only by:

• Oxytocin injection — causes forceful milk ejection from alveoli
• Re-milking — a second milking shortly after the first

Key Facts About Residual Milk

• Older cows have a higher percentage of residual milk than first-calf heifers.
• Residual milk % is more in low yielders than high yielders.
• A cow with a high residual milk percentage shows lower persistency of lactation.
• Normal milk letdown hormone: Oxytocin
• Hormone responsible for holding up of milk (inhibiting letdown): Epinephrine