הלכה אויף בראשית 24:14

If you own animals or birds (poultry), and it is your responsibility to feed them, you are not allowed to eat anything until you feed them, as it is written (Deuteronomy 11:15): "And I will put grass in your fields for your cattle (animals) and you will eat and be satisfied." Thus the Torah has given preference to feeding the cattle [animals] before the feeding of man. But as regards drinking, man comes first as it is written (Genesis 24:14): [Rivkah said] "Drink first and I will also give your camels to drink." Similarly it is written (Numbers 20:8): "And you will give drink to the congregation and to their animals."