סימן צח סעיף יח
כָּל בַּעֲלֵי חַיִּים שֶׁהֵם מֻקְצִין, אָסוּר לְהַשְׁקוֹתָן אוֹ לִתֵּן לָהֶם מְזוֹנוֹת בְּסָמוּךְ לָהֶם, אֶלָּא בְּרָחוֹק קְצָת.
Living creatures that are muktzeh55Shulchan Aruch 497:12, Shulchan Aruch Harav. This is so that you will not inadvertantly take them for eating in violation of muktzeh. This halachah, therefore, applies only to kosher species. The Shulchan Aruch 497:7 says this prohibition applies only to living creatures in a situation where catching them is a melachah and we fear you might do so if you put food near them. But your domestic creatures, even if muktzeh, should be fed on Yom Tov. This is the ruling of the Peri Chadash and Mishnah Berurah (497:4.)(see also Biur Halachah) may not be given drink, nor may their food be placed within a close reach, but it should be placed a short distance away.
תנא דבי אליהו כל השונה הלכות בכל יום מובטח לו שהוא בן העולם הבא שנאמר הליכות עולם לו אל תקרי הליכות אלא הלכות (נדה ע"ג.)