Pigeons Get a Boost from Nano‑Vitamin D
White King pigeons were given water with tiny packets of vitamin D3 to see if it helped them lay better eggs and raise healthier babies. 216 pairs, all three years old, were split into four groups that received either no vitamin D3 or 1, 000, 2, 000, or 4, 000 IU per litre for 13 weeks. The middl