A free mod for Valheim, by aedenthorn.
Prevent Baby Slaughter is a mod that prevents the butcher from killing baby animals unless you are holding down the hotkey (default left shift). This should prevent unwanted baby slaughter.
It does this by changing the hotkey to a toggle key and then a hold. The default hotkey is still left shift but you can change it to something else if you want to.
There is also has an option to change the way the mod works. You can either have it work the way it is now or have it work the way you want.
The mod also has an option to turn it on or off. This is done by editing the config file.