If one respects the fact that it is part of the food chain, then please do understand that we need to share food across the world. So transportation is inevitable right that should not be questioned rather regulated. Depending on lay out and size of the vessel and species, the largest live export ships can transport up to 70K to 85,000 live animals. However the average size ship can hold 4600 live cattle. Anything to make the day easier for the farmers and livestock. Part of our evolution. To become bigger than ourselves. What if there was a fight that broke out on the plane while at 30thou feet in the air? What it the rams went ham and started going at the fuselage? What if the plane suddenly depressurized who’s going to put on the oxygen mask on the sheep’s?