Livestock Studies 1966, Vol 6, Num, 3     (Pages: 184-188)

Studies about storage conditions of frozen bull semen

Adnan ÖZKOCA

- Semen was collected from three A, I, buls and frozen by dry ice and alcohol at L.A.B.R.C. Semen samples were transferred to the storage unit wihch keeps temperature at – 79 oC automatically shown at fig: 2. Frozen semen was kept in this unit up to 42 days. Eighteen cows were inseminated with frozen semen and produced 10 pregnancies. Average conception rate is 55.5 %.

Each bulls semen was examined under the microscope during the storage period. According to the examination, sperm motility is good at the end of storage time. Keywords :