All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His Slave and Messenger.
It is not permissible to feed children what is forbidden. An indication of this is the prohibition by the Prophet Muhammad, peace be upon him, for Al-Hasan ibn 'Ali to eat from the charity.
In the Two Authentic Books of Hadith, it is narrated from Abu Hurayra that Al-Hasan ibn 'Ali took a date from the charity and put it in his mouth. The Messenger of Allah said, “Throw it! Don't you know that we do not eat charity?”
As for meat known to be slaughtered in a non-permissible way, such as electrocution and the like, there is no doubt that it is forbidden.
Therefore, it is not allowed for you to entrust your daughter to a nursery that feeds her with the meat of a dead animal.
Allah knows best.