title: [Cows with swollen anus and vulva as a husbandry problem].
abstract: An acute farming problem is described. The symptoms were poor intake of concentrates, swelling of the anus and vulva, and decreased milk production. Research results show that pig premix was incorporated into the concentrate for dairy cows. Which component of the concentrate was responsible for the symptoms remains to be established.
authors.affiliation: Gezondheidsdienst voor Dieren in Noord-Nederland, Drachten.
authors.forename: T
authors.initials: T
authors.lastname: Dijkstra
authors.forename: G J
authors.initials: GJ
authors.lastname: Bosma
authors.forename: J
authors.initials: J
authors.lastname: Veling
mesh_terms: D000821:Animal Feed / Q000009:adverse effects*; D000818:Animals; D001004:Anus Diseases / Q000139:chemically induced*; D002417:Cattle; D002418:Cattle Diseases / Q000139:chemically induced*; D004487:Edema / Q000139:chemically induced; D005260:Female; D005503:Food Additives / Q000009:adverse effects; D014845:Vulvar Diseases / Q000139:chemically induced*
chemical_list: D005503:Food Additives
vernacular_title: Koeien met opgezette anus en vulva als bedrijfsprobleem.