The gape worm of fowls (Syngamus trachealis); the earthworm (Lumbricus terrestris), its intermediate host. Also, On the prevention of the disease in fowls called the gapes, which is caused by this parasite
Автор: Walker, H. D. (Hiram Dana), b. 1839, 38 стр., издатель: "Книга по Требованию", ISBN: 978-5-8840-3754-0


4 из 5, 9 голос(-ов).