Veterinary Andrology and Reproductive Techniques

EGG YOLK PHOSPHATE EXTENDER (EYP)

• Philips and Lardy (1940) develope this dilutor.

Composition

S.No.	Components	Quantity
1	Disodium hydrogen phosphate	2.0 gm
2	Potassium dihydrogen phosphate	0.2 gm
3	Distilled water	100 ml

• Equal parts of this buffer solution and egg yolk are mixed together to constitute the dilutor.
• This dilutor preserves bull semen for 72 to 96 hours and buffalo semen for an average of 48-72 hours.
• In this dilutor, visibility of sperm motility was not very clear when examined under microscope.
• In field tests this extender provided good fertility.

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