Effect of glycerol concentration on the motility and viability of cooled-stored ram semen - Crespilho, A. C. [UNESP]; Papa, Frederico Ozanam [UNESP]; Dell'aqua Junior, José Antônio [UNESP]; Zahn, F. S. [UNESP]; Martins, A. [UNESP]; Araujo, G. H. M. [UNESP]; Oba, Eunice [UNESP] (Wiley-Blackwell Publishing, Inc, 2008)