Halakhah su Deuteronomio 12:22

Shechita (Ritual slaughtering as dictated in Jewish Law) is a "positive" mitzvah. Shecita is not obligatory (as the case with obligations of Shofar, Succah and Lulav) since if one does not want to eat meat, there is no need to shecht (slaughter) . However, if someone does want to eat meat- there is an obligation to eat the animal only after shechting it, as the verse says, "You shall sacrifice your cattle and sheep like you have been commanded"(Deut. 12:21). Similarly, the shechita of a wild animal (that is kosher) is dictated by Torah law as the verse says regarding a firstborn animal that has a blemish, "...the same way he will eat the deer and the buck" (Deut. 12:22). One learns from this that a wild animal is alike to a domesticated animal in terms of Shechita (See the Sifrei HaMitzvos of the Rambam and the Smag). Furthermore, the shechita of birds is dictated by the Torah since the verse says, "that he will hunt a hunted animal or bird and will pour its blood" (Lev. 17:13). It is concluded from this verse that the pouring of the blood of a bird (which is part of the shechita process of that bird) is the same as that of an animal (see Sifri on Parshas Re'eh). It was taught by Bar Kafra- "This is the set of rules for the animal and the bird and anything that lives in the water" (Lev. 11). 'The bird' has been placed in between 'the animal' and 'anything that lives in the water'...

And even though the verse only mentions cattle and flocks, we have known that [wild] animals are included in [domesticated] beasts, since Scripture compares them, as it is written about [domesticated beasts] disqualified from [having been] consecrated (Deuteronomy 12:22), "But as you eat the gazelle and the deer, so shall you eat it" (Chullin 27b). And birds also require slaughter (Chullin 27b), since it is compared to a beast, as it is written (Leviticus 11:46), "This is the law of the beast and the bird." Yet the sages [further] made an exacting inference, and the tradition supports them, that since Scripture places the bird between the beast that requires slaughter and the fish which has no slaughter - as it is written, "This is the law of the beast and the bird and any living soul that moves in the waters" - it is enough for you with one benchmark (siman, either the esophagus or the windpipe). And from where did they learn to say that there is no slaughter with fish? As it is written about them (Numbers 11:22), "if all of the fish of the sea were collected for them" - just with collection, whether they are collected alive or even dead. And so [too,] all species of locusts do not have slaughter (Keritot 21b), as the expression, collection, is written about them as well - as it is written (Isaiah 33:4), "the collection of the locusts." And also the verse (Leviticus 11:46) mentions them after the fish at the end of the Order of Bayom Hashmini, as it is stated, "This is the law of the beast and the bird and any living soul that moves in the waters" - these are the fish - "and of any soul that swarms upon the earth" - these are the locusts. And also because they have scales on their bodies like fish.