Livestock are the animals kept on a farm. Move the livestock, livestock feed, a livestock market.
The word is plural in sense but has no separate plural form, so it is livestock are rather than livestocks. It covers cattle, sheep, pigs and poultry, and the phrase treats animals as property, which is exactly what the stock in it means.
1nounlivestockThe animals kept on a farm.
“The flood drowned much of the farm's livestock, including cows and sheep.”
livestock is farm animals.
From live + stock.
Etymology from Wiktionary, CC BY-SA