I didn't watch the butchery video, only the chick sexing one. It is helpful in showing how to see the difference between males and females, but I really think there's something wrong with humanity. This is not how you treat live animals.Tossing them down shoots and tubes and conveyor belts by the thousands. I know they don't get hurt or broken bones, but they are stressed and are calling all the time. Take the nice, calm, happy music away and watch it with real sound. Always makes a BIG difference with animal cruelty footage. The screams. Just imagine they were dog puppies, or human babies, screaming at the top of their lungs. And I would say to you its totally fine to treat them that way because they don't actually get hurt.