Genesis 41:2

And, behold, there came up out of the river seven well
favoured kine, and fatfleshed
Seven cows or heifers, sleek, fat, and plump, goodly to look at; these seemed in the dream, as if they came out of the river, because they were fed with the fruits of the earth, which the overflowing of the river Nile, and its canals, produced: and they fed in a meadow;
adjoining to the river, where there was good pasture for them, and gives a reason of their being in so good a condition.