title: Decreased plasma testosterone concentrations in rams affected by ryegrass staggers.
abstract: Feeding ryegrass, cut from pasture that had caused an outbreak of ryegrass staggers, to 10 mature rams caused a significant decrease in plasma testosterone concentrations in six animals. Six rams also developed staggers, but these did not all have decreased testosterone levels. This discrepancy suggests that toxic pasture could cause these two effects independently.
mesh_terms: D000818:Animals; D008297:Male; D010939:Plant Poisoning / Q000097:blood / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000097:blood*; D013739:Testosterone / Q000097:blood*
chemical_list: D013739:Testosterone