Penn State Extension

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Note: everyone is wearing protective booties in an effort to minimize biosecurity risk
Biosecurity Risk Assessment: Livestock Exhibitions - Articles Articles

Biosecurity Risk Assessment: Livestock Exhibitions

Ernest Hovingh, DVM, PhD, David R. Wolfgang, VMD, MPH DABVP-Dairy

A checklist to determine the biosecurity risk at Livestock Exhibitions. More
Biosecurity Risk Assessment: Johne's Disease Biosecurity Risk Assessment: Johne's Disease - Articles

Biosecurity Risk Assessment: Johne's Disease

Ernest Hovingh, DVM, PhD, David R. Wolfgang, VMD, MPH DABVP-Dairy

A checklist to determine the risk of various factors for Johne's Disease in dairy herds. More
Compost pile. Photo by Craig Williams
Composting Animal Mortalities - Articles Articles

Composting Animal Mortalities

David R. Wolfgang, VMD, MPH DABVP-Dairy

Despite the best intentions and care in animal agricultural facilities there are occasional animal mortalities. More
Source: OIE World Animal Health Information System adapted by FAO EMPRES-i. Number of bovine TB cases reported by country in 2011.
Tuberculosis in Cattle - It's Not Totally Gone - Articles Articles

Tuberculosis in Cattle - It's Not Totally Gone

David R. Wolfgang, VMD, MPH DABVP-Dairy

Bovine tuberculosis is still found worldwide, even though many countries have greatly reduced or even eliminated the disease from their cattle herds. More
Prévention et Contrôle des Problèmes d’aplombs Chez les Vaches Laitières
Prévention et Contrôle des Problèmes d’aplombs Chez les Vaches Laitières - Articles Articles

Prévention et Contrôle des Problèmes d’aplombs Chez les Vaches Laitières

Virginia A. Ishler, David R. Wolfgang, VMD, MPH DABVP-Dairy, Dave Griswold, Bruno Martin

La santé des aplombs et les boiteries sont des soucis majeurs auxquels les producteurs de lait font face à cause de leur apparition fréquente et des pertes économiques énormes engendrées. More