Effect of protein intake during training on biochemical and performance variables in sled dogs.

摘要: Objective To determine effects of protein intake on blood variables, plasma volume, and maximal oxygen uptake (VO2max) in sled dogs undergoing rigorous training. Animals 32 Alaskan dogs, between 2 6 years old. Procedure Dogs were assigned to 1 4 groups the basis age, sex, ability. Isocaloric diets containing 18% (diet A), 23% B), 29% C), or 35% D) energy as randomly each group fed month before during a 12-week training period. Maximal was measured at 0 (before training) 12 weeks. Body weight, intake, PCV, hemoglobin concentration, serum biochemical variables 0, 8, Results Serum concentration remained within reference ranges for all dogs. diet A had decrease VO2max greater rate soft tissue injury throughout training, compared with other diets. At weeks, C D sodium than did A. also more volume weeks any group. Conclusions clinical relevance Consumption dietary an (3.0 g protein/kg body weight) is insufficient meet metabolic requirements For intense interval work, (6.0 protein/kg) may provide performance advantage by promoting increase volume.