Made available in DSpace on 2018-12-11T17:25:31Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-07-31. Added 1 bitstream(s) on 2021-07-15T15:03:45Z : No. of bitstreams: 1 S1413-70542015000400355.pdf: 888034 bytes, checksum: 8cfad4d3ef27ff6658f9b1202346a40c (MD5); Genetic breeding programs of beef cattle in Brazil are including new features, mainly related to reproductive efficiency. Thus, it is necessary...