The effect of condensed tannins towards per capita fecundity of female gastrintestinal nematodes in sheep - Minho, Alessandro Pelegrine; Cabral Filho, Sergio Lucio Salomon; Bricarello, Patrícia Ana; Ranzini, R. R; Bueno, Ives Cláudio da Silva; Godoy, P; Nozella, E; Abdalla, Adibe Luiz; Gennari, Solange Maria; Louvandini, Helder (World Conference on Animal Production, 2003)