Investigation confirms Lepto sub fertility role

摘要

Leptospirosis could be costing many dairy herds up to ￡ 200/COW every year because of sub fertility. Dairy Farmer's deputy editor Shirley Macmillan reports. Leptospirosis affects herd fertility. A three-year investigation at Liverpool University, funded by Mallinckrodt Veterinary, has now confirmed what was once just hearsay. Herds infected with Leptospira hardjo suffer from reduced conception rates, cull more cows for failing to conceive and require more straws per pregnancy.