A religious Jew in California asked:
A Concerning question came up over Shabbat. Is the shofar (ram's horn blown on Rosh Hashanah) industry kind to animals?
The shofar industry has nothing to do with the animals, and even if they did, and even if they were mistreating the animals it would not posul (invalidate) the shofars.
If anyone is mistreating the animals it is the ones who raise them and then have them slaughtered, but the animals are not slaughtered for their horns (shofars) or for their hides (leather). They are killed for the meat. But still, even if they would mistreat them, it might posul them as trustworthy shepherds but if the animal was slaughtered properly the meat would be kosher to eat.
I have not eaten meat in almost 50 years. I do this because of the health benefits, but I am also very happy not to contribute to the cruelty that is rampant in that industry. The mishnah says that the kosher of the slaughters are partners with Amalek.[i] Amalek is an ancient people known for their cruelty.
[i] Talmud Kiddushin 82a