עֲשָׂרָ֨ה בָקָ֜ר בְּרִאִ֗ים וְעֶשְׂרִ֥ים בָּקָ֛ר רְעִ֖י וּמֵ֣אָה צֹ֑אן לְ֠בַד מֵֽאַיָּ֤ל וּצְבִי֙ וְיַחְמ֔וּר וּבַרְבֻּרִ֖ים אֲבוּסִֽים׃
Rashi on I Kings
And fattened fowl. Among our Rabbis there are those who say [it refers to] roosters which were fattened.1See Maseches Bava Metzia 86b.