Case report: Measuring the Circulating Bone Metabolic Markers of Two Asian Elephant (<i>Elephas maximus</i>) Calves Around Weaning

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  • TAKEHANA Kazuya
    Ichihara Elephant Kingdom Zoological Park
  • ADACHI Mare
    School of Veterinary Science, College of Life, Environment, and Advanced Sciences, Osaka Prefecture University
  • ISHIKAWA Shingo
    School of Veterinary Science, College of Life, Environment, and Advanced Sciences, Osaka Prefecture University Graduate School of Veterinary Science, Osaka Metropolitan University
  • YAMAGISHI Norio
    School of Veterinary Science, College of Life, Environment, and Advanced Sciences, Osaka Prefecture University Graduate School of Veterinary Science, Osaka Metropolitan University

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  • 症例報告：アジアゾウ（<i>Elephas maximus</i>）の子ゾウ2頭における離乳前後の血中骨代謝マーカー値
  • Case report : Measuring the Circulating Bone Metabolic Markers of Two Asian Elephant (Elephas maximus) Calves Around Weaning

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Abstract

<p>　We measured the serum activities of the bone-specific isoenzyme of alkaline phosphatase (ALP3) and tartrate-resistant acid phosphatase 5b (TRAP5b), as osteoblastic bone formation and osteoclastic bone resorption markers, respectively, in two zoo-managed Asian elephant calves during the 4-month period around weaning (2 months before and after weaning). The serum ALP3 and TRAP5b levels decreased after weaning; the levels were significantly higher in the pre-than post-weaning period. These results suggest that osteoblastic bone formation and osteoclastic bone resorption slowed after weaning. Breast milk feeding of Asian elephants may play a significant role in osteoblastic and osteoclastic bone metabolism during the growth period.</p>

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