完全配合飼料で飼育した競走馬の中等度の運動における血糖の変動について

• 永田 雄三

  Equine Health Service Section , Equine Health Laboratory

書誌事項

タイトル別名

• Variance of Blood Glucose at Medium Training in Race Horses Fed Complete Pelletized Feed

抄録

An experiment was designed to discuss, with reference to the variation of blood glucose, whether net energy produced by the intake of a certain quantity of a complete pelletized feed for race horses was enough to perform the medium training or not. Three female Anglo-Arabian race horses 3 years old were used. They were subjected to training to run on the race track during an experimental period of a month. Conventional performance tests were also done at the beginning, in the middle, and at the end of the experiment to confirm the progress of training. As the training method, a tentatively prescribed interval training was adopted. The average level of blood glucose determined three hours after morning feeding was regarded as the normal value at rest. Thereafter, the exercise was begun, and blood glucose was determined 5 minutes after, and 60 minutes after exercise. The intake of digestible energy was about 23, 700 kcal, or 52.6 kcal per kg mass. The body weight of horses decreased by 2.3 to 4.5% in the first half of the experimental period of a month, but changed little in the second half. In the case of exercise in three performance tests, blood glucose determined soon after exercise increased or decreased transiently when horses ran at full speed in the final round of 800 m in 60 seconds or more. The rate of variation was less than 30% of the pretest value. This change returned to normal 60 minutes after exercise. On the other hand, blood glucose of a horse having run the final distance of 800 m in 56 seconds decreased to 34 mg/100 ml im mediately after exercise. This was probably because too much glucose had been taken into tissues in the body. Since this case recovered the normal value 60 minutes after exercise, glycogen might have already been reserved con siderably in the liver of the horse. Next, blood glucose in the exercise of interval training increased or de creased more than that in the performance test. The rate of variation was less than 70% of the pre-exercise value. The lowest value after exercise was 48 mg/100 ml. The highest value attained to 159% immediately after exercise. This wide variation of blood glucose in the interval training, as compared with that in the performance test, was assumed to be attributed to the intensity and complex activities of the exercise. No remarkable decrease was found in blood glucose soon after exercise, and blood glucose returned to normal 60 minutes after exercise. Therefore the energy consumption of exercise in the interval training, which was estimated to be approximately 6, 800 kcal, was presumed to have been met with the nutrition supplied by the daily intake of 8.5 kg of a complete pelletized feed,

収録刊行物

• 日本中央競馬会競走馬保健研究所報告

  日本中央競馬会競走馬保健研究所報告 1971 (8), 91-99, 1971

  日本ウマ科学会

詳細情報

• CRID: 1390282680338876928
• NII論文ID: 130003822936
• DOI: 10.11535/jes1961.1971.91
• ISSN: 18844634
• ISSN: 03685543
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可