INCIDENCE OF 1 29-TRANSLOCATION IN VENEZUELAN CREOLE BULLS/

The Venezuelan Creole breed cattle is a Bos taurus well adapted to tro pical conditions; however, it has demonstrated a low fertility rate. R ecently, improvement in animal production by selection based on chromo somal analysis has allowed for the erradication of abnormalities invol ved in fertility problems, especially that of the 1/29 translocation. In the present work chromosomal analyses were carried out on 60 Creole bulls. Heparinized peripheral blood cells were cultured rendering met aphase spreads and subsequently stained by G- and C-banding techniques . The 1/29 translocation was observed in 13 of the 60 bulls. The occur rence of this translocation in Creole cattle is discussed.