title: Lesions in sheep and guinea pigs pen fed parasitised annual ryegrass (Lolium rigidum)
mesh_terms: D000818:Animals; D001419:Bacteria; D006168:Guinea Pigs; D008297:Male; D010935:Plant Diseases; D010939:Plant Poisoning / Q000209:etiology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000209:etiology*