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Kil'ayim (Hebrew: כלאים, lit. "Mixture" or "Confusion") is the fourth tractate of Seder Zeraim ("Order of Seeds") of the Mishnah and of the Talmud. It deals with the laws of various forbidden production and uses of mixtures, as provided in Leviticus 19:19 and Deuteronomy 22:9-11. Specifically, it discusses planting mixtures of seeds, grafting, mixtures of vineyards, crossbreeding animals, working with a team of different kinds of animals, and shaatnez (clothes containing a mixture of linen and wool).There is a Gemara from the Jerusalem Talmud.
