Strategic vaccination

摘要

Vaccinating cattle lor disease such as leptospirosis, IBR and BVD can be costly, but it can also be money well spent when it is used as part of a wider health plan, suggest vets. Most dairy herds have a degree of background disease that goes unnoticed. As a result, the cost to production and farm profitability is often hard to calculate. For example, the impact of diseases such as IBR or BVD, delaying a cow getting back in-calf, is calculated at between E1.50-E3 a head a day, according to recent studies.