What dietary supplement is most important for the health of remaining birds after a dove with grossly enlarged parathyroid glands is euthanized?

Calcium is vital for the health of birds, especially in the context of parathyroid gland dysfunction. When a dove exhibits grossly enlarged parathyroid glands, it is often indicative of issues related to calcium metabolism, which can stem from dietary deficiencies or imbalances. The parathyroid glands regulate calcium levels in the body, and when they are not functioning properly, it can lead to a condition known as secondary hyperparathyroidism.

By administering a calcium supplement to the remaining birds, you help address potential deficiencies that might be present and reduce the risk of similar health issues in these birds. Calcium is crucial for many physiological processes, including bone health, muscle function, and nerve signaling. Ensuring that the remaining birds have adequate calcium intake could prevent further health complications arising from poor calcium metabolism, particularly in a scenario where increased dietary needs may arise after a health event in their environment.

In contrast, while the other options play important roles in avian health, they are not as directly linked to the specific concern related to parathyroid gland function and calcium metabolism. Iodine is primarily necessary for thyroid function, selenium is important for antioxidant defenses, and vitamin A is vital for vision and epithelial health. While all nutrients are essential for overall health