PHYSIOLOGICAL RESPONSE OF ZARAIBI BILLY GOATS SPERMATOZOA TO SOYBEAN LECITHIN ADDITION AS AN ALTERNATIVE TO EGG YOLK VARIETIES IN SEMEN EXTENDERS

Document Type : Original Article

Author

• E. Khalifa

Animal Production Research Institute (APRI), Department of Sheep and Goat Research, Ministry of Agriculture, Dokki, Giza, Egypt

Keywords

• Billy goats
• semen
• plant and animal cryopreservation origins
• fertility rate