I kept my baby away from my drake until she was old enough to be outside of her own, about 3.5-4 weeks. I kept slowly introducing them, by supervised outside play time, or putting the baby in the pen but locked in a kennel. At first my drake didnt like her, but the only time I saw possible signs of dangerous side effects was when they were together in the baby pool. My drake would display sexual signs, and tried to push her underwater a couple of times, and bite her neck, and flap his wings. But hasnt yet tried to mount. I made sure the water wasnt too deep so she could still stand. Now they have no issues, and if he starts harassing her in the pool she just uses the steps and gets out. Outside of the pool, he is really great with her, letting her eat first, leads her to the food and water bowl, protects her, and even taught her to beg at the back door for treats. They have become very close, and I only have the two of them.