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Hematologic and biochemical changes during canine agility competitions.

S Rovira1, A Muñoz, M Benito

  • 1Department of Animal Medicine and Surgery, CEU-Cardenal Herrera University, Valencia, Spain. sabina@uch.ceu.es

Veterinary Clinical Pathology
|February 22, 2007
PubMed
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Canine agility competitions cause mild hematologic and biochemical changes. These results suggest splenic contraction, increased lipolysis, and anaerobic energy use in dogs during intense exercise.

Area of Science:

  • Veterinary Sports Medicine
  • Canine Physiology
  • Exercise Biochemistry

Background:

  • Establishing normal physiological responses to exercise is crucial for assessing canine performance and health.
  • Understanding exercise-induced changes is key to evaluating training levels and exercise intolerance in dogs.

Purpose of the Study:

  • To document the hematologic and biochemical alterations in dogs participating in an agility competition.
  • To provide baseline data on physiological responses to canine agility events.

Main Methods:

  • Fifteen dogs completed a 360-400m agility test with 40 obstacles.
  • Blood samples were collected pre-competition and at multiple time points post-exercise for analysis.
  • Complete blood count (CBC), plasma biochemistry, lactate, cortisol, and insulin levels were measured.

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Main Results:

  • Significant increases in red blood cell count, hemoglobin, and hematocrit were observed post-exercise.
  • Serum triglyceride levels rose, peaking 30 minutes into recovery, indicating lipolysis.
  • Lactate concentrations surpassed the anaerobic threshold, and lactate dehydrogenase activity increased post-exercise.

Conclusions:

  • Agility competitions induce mild to moderate hematologic and biochemical changes in dogs.
  • Findings are consistent with splenic contraction, enhanced lipolysis, and anaerobic metabolism for energy.
  • These physiological responses are indicative of the demands of high-intensity canine agility events.