title: [Refusal of breeding bulls to eat hay contaminated with horsetail (Equisetum palustre)].
abstract: Bulls refused hay from a new batch (coming from a nonintensively fertilized area in Southern Germany). The intake of other components of the ration (silage, concentrates) was not influenced. The visual inspection of the hay revealed a massive contamination (about 12% by mass) by horsetail. According to the reported observations it seems that cattle recognize the plant by its odour, and refuse it if alternative roughage is available, thereby escaping an intoxication.
authors.affiliation: Institut für Tierernährung, Tierärztlichen Hochschule Hannover.
authors.forename: J
authors.initials: J
authors.lastname: Kamphues
mesh_terms: D000821:Animal Feed; D000818:Animals; D002417:Cattle / Q000502:physiology*; D005247:Feeding Behavior; D005506:Food Contamination; D005518:Food Preferences; D008297:Male; D010947:Plants, Toxic
vernacular_title: Verweigerung der Aufnahme von Heu bei Zuchtbullen bedingt durch eine Kontamination mit Sumpfschachtelhalm (Equisetum palustre).