VGO 511: Veterinary Andrology and Reproductive Techniques (1+1)

COLLECTION OF SEMEN

• The semen collection is done in morning hours.
• The bulls will be active and the stomach will be empty in the morning hours which help in better semen collection.
• The scheduled bulls will be carried from their paddocks to washing area.
• The animals should be washed to remove all the dirt.
• They should be tied surrounding the collection shed and should be dried.
• The bulls should be tied with bull apron and the prepuce should be cleaned with normal saline.
• The dummies are placed in trevis and restrained.
• The bull will be brought behind the dummy and 2-3 false mountings will be allowed. (Click here to view picture).
• When it is mounting with complete thrust the semen is collected with artificial vagina.

Note: After collection the animals are given 20 minutes refractory period for second collection. But this time varies from bull to bull.

(Click here for video demonstration)

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