Búsqueda de LIBROS DEL AUTOR: e j wortley

1 resultados

e j wortley Eliminar filtro Quitar filtros
  • POULTRY DISEASES
    ebook
    POULTRY DISEASES
    E. J. WORTLEY
    Excerpt: "Poultry farming as a means of profit can be made successful only by maintaining the most vigorous and sustained campaign against disease. The aim of the poultry rearer should be to stamp out disease by preventive measures. Practical experience proves the inefficiency of many so-called cures, and points to the urgency of poultrymen endeavouring to understand more thoro...

    $39.70

    Ver detalle