Study Chullin folio 79B with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
And in addition, he holds that these distinguishing characteristics apply by Torah law, such that they may be relied upon to allay concerns of violating even a prohibition that is mandated by Torah law.
§ A baraita states (see Tosefta 5:1): The prohibition against slaughtering an animal itself and its offspring applies to the offspring of diverse kinds of animals, such as a goat and a ewe, and to the koy, even though the prohibition does not apply to undomesticated animals. R' Eliezer says: With
The Talmud asks: What are the circumstances surrounding the birth of this koy? If we say that it is the result of a goat that mates with a doe, and she gives birth, and one slaughters her and her offspring on the same day, that is difficult: But doesn’t Rav Ḥisda say: All concede in the case where s
Rather, perhaps this koy is the product of a deer that mates with a female goat, and she gives birth, and one slaughters her and her offspring on the same day. But doesn’t Rav Ḥisda say: All concede that in the case where she is a goat and her offspring is a deer because she mated with a deer, that
The Talmud responds: Actually, the dispute between R' Eliezer and the Rabbis is in the case of a goat that mates with a doe, and she gives birth to a female offspring, a koy, and this female offspring gives birth to a male offspring, and one slaughters her and her male offspring on the same day.