著者

Ken KATO Yukihiro TAKADA Hiroaki MATSUYAMA Yoshihiro KAWASAKI Seiichiro AOE Hideo YANO Yasuhiro TOBA

出版者

Japan Society for Bioscience, Biotechnology, and Agrochemistry

雑誌

Bioscience, Biotechnology, and Biochemistry (ISSN:09168451)

巻号頁・発行日

vol.66, no.11, pp.2342-2346, 2002 (Released:2003-06-19)

参考文献数

21

被引用文献数

13

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We investigated the calcium bioavailability of milk calcium, taken with or without cheese. Twenty-four 6-week-old male rats for a meal-feeding experiment were trained to consume an AIN-76 diet within 2 h (2 times per day) for 2 weeks. The rats were then divided into three experimental groups, each fed 2 types of experimental diets: Control group, Cheese group, and Ca-Cheese group. The rats were each alternately given 2 types of experimental diets at 2-h meal-feeding for 31 days. The breaking force and energy of the femur in the Ca-Cheese group were significantly higher than in the control group. The bone mineral density (BMD) of the lumbar spine and the femur in the Ca-Cheese group was also significantly higher than in the other two groups. These results indicate that milk calcium taken with cheese increases bone strength and BMD efficiently, results that may be useful for the prevention of osteoporosis.

著者

Akira MATSUI Tomoko OSAWA Hirofumi FUJIKAWA Yo ASAI Tohru MATSUI Hideo YANO

出版者

Japanese Society of Equine Science

雑誌

Journal of Equine Science (ISSN:13403516)

巻号頁・発行日

vol.13, no.4, pp.109-112, 2002 (Released:2003-04-10)

参考文献数

13

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We examined total sweating rate (SR) and the amount of mineral (Na, K, Ca, Mg, Fe, P, Zn and Cu) loss through sweat in 2-year-old horses during exercise for approximately 2,000 m at a speed of 700 m/min, at cool ambient temperature. The total SR was estimated by the unit area SR on the neck by filter paper within a capsule. Mean total SR was 1.55 ± 0.47 (SD) kg. The ratio of sodium loss to the requirements reported by National Research Council reached 23% and that of potassium was 7%. The ratio of other mineral losses to the requirements reported by National Research Council was 2% or less. These results suggested that sodium had to be supplemented to the horse, but there was no need to add extra minerals to the diet to compensate for mineral losses of calcium, magnesium, iron, phosphorus, zinc and copper through sweat during exercise with light intensity and at a cool ambient temperature.