S. E. Pozzobon

The effect of sperm selection by Percoll or swim-up on the sex ratio of in vitro produced bovine embryos

K. Brass, F. D. D. L. Côrte, C. A. Wolf, 2008 .

Addition of recombinant human growth hormone to in vitro maturation medium of bovine oocytes.

F. G. Leivas, D. S. Brum, M. Rubin, 2005, Reproduction in domestic animals = Zuchthygiene.