Metabolic Bone Disease
Nutritional secondary hyperparathyroidism
Cunoscută și ca: Nutritional Secondary Hyperparathyroidism, NSHP, Fibrous Osteodystrophy, Osteomalacia, Rickets
Pe scurt
Metabolic Bone Disease (MBD), or nutritional secondary hyperparathyroidism, is a common and serious condition in captive reptiles and turtles. Caused by a lack of dietary calcium, improper calcium-to-phosphorus ratios, or insufficient UVB light, it leads to weak, deformed bones and muscle tremors. Learn how to recognize the signs, how veterinarians diagnose and treat it, and how proper husbandry can prevent this debilitating disease.
TL;DR. Afecțiune prevenibilă la reptile și țestoase din lipsă de calciu sau UVB: oase moi, deformări și tremor.
Lumina UVB este esențială pentru sinteza vitaminei D3 și absorbția calciului.
Ce este?
Metabolic bone disease in captive reptiles/turtles is usually nutritional secondary hyperparathyroidism: insufficient calcium or UVB leads to soft bones, fibrous reinforcement of limbs/jaws, and muscle tremors.
Cauze și factori de risc
Husbandry errors: inadequate UVB (290-315 nm), low dietary calcium, poor Ca:P ratio (aim near 2:1), cold enclosures. Fast-growing species are highest risk.
Semne
- Rubber jaw; soft/warped shell in chelonians (cardinal)
- Swollen firm limbs, pathological fractures, lethargy, anorexia, tremors (common)
- Paresis/paralysis from spinal deformity (occasional)
Maxilar scurtat și membre umflate sunt semne tardive clasice.
Diagnostic
Husbandry review. Radiographs (gold): demineralized ghost bones, hidden fractures. Ionized calcium; biochemistry for kidney and phosphorus.
Radiografiile arată oase demineralizate și fracturi ascunse.
Tratament
Oral or injectable calcium salts; phosphate binders if phosphorus high; cautious calcitriol after calcium stabilizes. Fix UVB, heat gradient, diet.
Prognostic
Excellent if early before severe deformity. Permanent shape changes may remain. Poor with paralysis or severe kidney disease.
Prevenire
Linear UVB (replace every 6-12 months), calcium (± D3 indoors), gut-load insects, Ca-rich greens, correct thermal gradient.
Când sunați medicul veterinar
Emergency: continuous tremors/seizures, inability to lift body, soft jaw/shell, visible fractures, extreme lethargy or prolonged anorexia.
Surse
- Mader's Reptile and Amphibian Medicine and Surgery, 3rd Edition, pages 315-321, 811-814.
- BSAVA Manual of Reptiles, 3rd Edition, pages 102-105, 210-212.
My highlights & notes
Semne și simptome
Cum se diagnostichează
- RadiographyStandard de aur
- Plasma Biochemistry Panel
- Plasma Ionized Calcium
Abordări de tratament
Tratamentul trebuie prescris de un medic veterinar autorizat. Dozele specifice nu sunt afișate intenționat.
Întrebări frecvente
What is Metabolic Bone Disease?
Metabolic Bone Disease (MBD), or nutritional secondary hyperparathyroidism, is a common and serious condition in captive reptiles and turtles. Caused by a lack of dietary calcium, improper calcium-to-phosphorus ratios, or insufficient UVB light, it leads to weak, deformed bones and muscle tremors. Learn how to recognize the signs, how veterinarians diagnose and treat it, and how proper husbandry can prevent this debilitating disease.
What are the symptoms of Metabolic Bone Disease?
Soft, deformed carapace or plastron、Soft, pliable mandible or maxilla (rubber jaw)、Loss of appetite、Lethargy and weakness、Muscle tremors or twitching、Pathological fractures、Swollen, firm limbs、Paresis or paralysis
How is Metabolic Bone Disease diagnosed?
Radiography、Plasma Biochemistry Panel、Plasma Ionized Calcium
How is Metabolic Bone Disease treated?
Tratamentul trebuie prescris de un medic veterinar autorizat. Dozele specifice nu sunt afișate intenționat.
Acest articol este educație generală și nu înlocuiește sfatul veterinar. Dacă animalul e bolnav, consultați un veterinar.
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