Evidence-Based Veterinary Medicine "is the use of current best evidence in making clinical decisions. In EBVM reduced reliance is placed upon intuition, unsystematic clinical experience, and pathophysiological assumptions as the basis for clinical decision-making, and puts the emphasis on evidence from randomized controlled trials or accurate recording of information."
(Cockcroft, P. & Holmes, M. (2003). Handbook of evidence-based veterinary medicine. Oxford, UK: Blackwell Publishing. p. 11-12).
Research Design: qualitative, quantitative, and mixed method approaches by 
The EBVM Toolkit from RCVS is designed to help veterinary practitioners answer a clinical question with the best available evidence.
Free resources from RCVS Knowledge will introduce you to different QI techniques, and help you understand the processes you can put in place to help improve outcomes.
Centre for Evidence-based Veterinary Medicine
Provides information about on-going projects and useful resources for the veterinary profession to promote the use of Evidence-based Veterinary Medicine principles (University of Nottingham).
Simple reviews of current best evidence to answer specific clinical questions (from the University of Nottingham)
PICO.vet is designed to help veterinary clinicians, researchers, librarians and others build a well-structured and focused clinical question that interactively searches the biomedical literature.
WSAVA Global Nutrition Toolkit
Consultant (Cornell University) - A Diagnostic Support System for Veterinary Medicine
