Disease control, livable conditions, worker safety to name all I could think of.
How would toilet training reduce greenhouse gases?
(Not that that matters - the bulk of beef cattle can barely move, it's not like factory farms have space for designated potty areas or something).
Training beef cows seems like something of a waste of time since they get slaughtered so young. Milk cows however could be worthwhile.
In fact there's a device for letting cars through but not cows that is basically a grate you put on the road. The fence comes up to the grate on both sides and there is no gate. You just drive over the grate.
> Scattered excrement can cause bacterial infections in cows. And when their poop mixes with pee, it creates an environmental hazard: ammonia, which can transform into the potent greenhouse gas nitrous oxide. Half of the ammonia produced in Europe comes from cattle farms, says study co-author Jan Langbein, an applied ethologist at the Leibniz Institute for Farm Animal Biology. Given the hundreds of millions of dairy cows in the world, he says, studies have shown that capturing 80% of cow urine would lead to a 56% reduction in ammonia emissions.