Interbreed Matings in Dairy Cattle. II. Herd Health and Viability

Development of Dairy Cattle Registration and Herd Management System

In order to meet the requirement of dairy cattle breeding and modern cattle farm management, the dairy cattle registration and herd management system was programmed with Visual FoxPro9.0, which can run on Windows9X/Me/NT/2000/XP, to fit the current implemented Canadian dairy cattle DHI recorders and 9-point linear comprehensive evaluation. Based on data collection and analysis of basic herd inf...

Economics of diseases causing dairy cattle lameness at herd level

In a cross-sectional study, performed between October 2002 and April 2003 on 55 Danishdairy herds with 6161 predominantly Holstein Friesian cows the prevalence of 9 hoof lesionswas determined.All test day yields (TDY) of kg Energy Corrected Milk (ECM) in the lactation of diagnosiswere recorded. For the purpose of including hoof lesions in a decision support model anattempt w...

The frequency of photosensitization in a dairy cattle herd infected by Leptospires

Leptospirosis is a bacterial zoonotic disease, which can induce hepatic lesions. Photosensitization (PS)maybe is the result of accumulation of photodynamic agents in unpigmented area of the skin exposed tosunlight which occurred due to hepatic lesions. An outbreak of leptospirosis was occurred in a dairy cattleherd complex with 760 dairy milking cows in March (1990). Totally, 412 cows (54.21%) ...

Testing new dairy cattle for disease can boost herd health , cut costs

Functionality and Interfaces of a Herd Health Decision Support System for Practising Dairy Cattle Veterinarians in New Zealand

Decision-making processes to assess and improve the health of dairy herds are often unstructured due to the complexity of interactions that exist between the health and productivity of the herd, for which there are no ready to hand solutions. Decisions made in the face of these complex herd health problems are often based on the experience and perceptions of what might be a quick or the easiest...