THE SUCCESS OF EMBRYO TRANSFER IN DAIRY CATTLE RECIPIENT USING BEEF CATTLE EMBRYOS

Tita Damayanti Lestari, Ismudiono Ismudiono, Trilas Sardjito, Pudji Srianto

Abstract
   A field research on "The Success of Embryo Transfer in Dairy Cattle Recipient using Beef Cattle Embryos" has been conducted. Prior to the research, selection of dairy cow recipients has been done. It has been selected, from three different farm locations i.e. Bendul Merisi Farm: 9 head; Teaching Farm 5 head and Wonocolo 6 head. The 20 recipients have been estrous synchronized prior to embryos transferred. Blood samples were collected three times i.e.: at onset of estrous, at receiving embryo (day 7) and day 21 after estrous, to measure the concentration of progesterone as the parameters. Further parameters were non return rate and pregnancy rate. Pregnancy detection was done by rectal exploration on day 90 after transferred of embryos. Result shows 11 head (55%) dairy cow recipients get pregnant. They are 3 heads from Teaching Farm (60%), 4 heads (44.44%) from Bendul Merisi Farm and 4 heads (66.66%) from Wonocolo Farm In conclusion, dairy cow recipients can accept embryos derived from beef cattle.

Key words: Embryo Transfer, Beef Cattle Embryo, Dairy Cattle Recipient