“Trefos is not as big an issue as you think, They just sell the chickens as non kosher, yes it will get less, but if you pack more chickens in the carrier you will more than make up for the loss.
It isnt like the olden days where a trief animal was a big loss, today its fairly small and you still make money, just not as much”
You are just showing your ignorance again.
They do not use sell the treife chickens, only cattle. And there is a significant loss that is one of the reasons why kosher meat is so much more expensive.
And there are not so many treifos from the crates (there are occasionally, I am not saying not)those are typically disposed of immediately and are probably not allowed to be used for human consumption at all.
Of course that is only my observation based on visiting a shlachthoiz and speaking to people who have worked in many, not just baseless conjecture.