There is a range of synonyms for the term 'livestock breeder.' A cattle producer manages and breeds cattle, whereas a stockman manages livestock in a broad sense. A cowman, on the other hand, manages cows specifically. A rancher breeds livestock on a farm or ranch while a shepherd manages a flock of sheep. In addition, a swineherd manages pigs, and a poultry farmer breed chickens, ducks, and other birds. Lastly, a farmer who farms fields to produce food or feed for livestock is referred to as a feeder or agro-producer. In summary, depending on the kind of livestock, there is a variety of synonym for 'livestock breeder'.