The Boer goat is a breed of goat that was developed in South Africa in the early 1900s and is a popular breed for meat production. Their name is derived from the Afrikaans word boer, meaning farmer. Boer goats commonly have white bodies and distinctive brown heads. Some Boer goats can be completely brown or white or paint, which means large spots of a different color are on their bodies. Like the Nubian goat, they possess long, pendulous ears. They are noted for being docile, fast-growing, and having high fertility rates. Does are reported to have superior mothering skills as compared to other breeds. Boer goats tend to gain weight at about the same rate as their sire, so a buck from a proven fast-growing bloodline will command the highest price, as its offspring tend to also be fast growers. The primary market for slaughter goats is a 22–36 kg (49–79 lb) kid; kids should reach marketable size at weaning age. The kid of a proven fast-growing sire might weigh 36 kg (79 lb) at 90 days, while the kid of a poor-quality sire might weigh only 15 kg (33 lb) at 90 days. An average-quality buck will initially be less expensive to purchase, but it can significantly undermine an operation’s long-term profitability.