This number seems a little bit off. About 900 million pigs are slaughtered in Asia per year [1] That's 2.5 million dead pigs a day. Since we need live animals to breed more for killing them and it takes time before they are killed, this suggests that at any given time more than a billion pigs are alive in Asia.
But good thing that we sterilized those 150000 dogs, anything else would have been inhumane [2]
[1] https://faunalytics.org/global-animal-slaughter-statistics-a...
[2] Sorry, I'm bitter.