Experimental Oesophagostomum dentatum infections in the pig: worm populations at regular intervals during trickle infections with three dose levels of larvae

adulte adultos adults animal diseases animal domestique cerdo domestic animals dynamique des populations ecologia ecologie ecology enfermedades de los animales experimental infection fecundity females femelle fertilidad fertilite fertility ganado hembra in vivo experimentation infecciones por nematodos largura larvae larvas larve length livestock longueur macho maladie des animaux males nematoda nematode infections oesophagostomum dentatum population dynamics porcin swine