New research sponsored by HBD indicates that African Grey Parrots must have direct daily access to sunlight or UVB full spectrum lighting in order to obtain the ideal levels of vitamin D3 and normal calcium levels in the blood. Diet alone does not produce the ideal levels.作者: vase 時間: 2013-3-7 13:37
請參考 "Handbook for a Healthier Bird". 這本handbook 在以下條link: