TY  - SER
AU  - Barnabe,V.H.
AU  - Barnabe,R.C.
AU  - Visintim,J.A.
AU  - Viana,W.G.
AU  - Casagrande,J.F.
AU  - Almeida,C.A.de
TI  - Comparative study between phase contrast and differential interference contrast microscopies for evaluation of frozen bull semen [Bovino; Semen; Conservacao; Congelamento; Bos taurus]
KW  - Melhoramento genetico animal
KW  - Bovino
KW  - Semen
KW  - Conservacao
KW  - Congelamento
KW  - Reproducao animal
ER  -