Animal science By payne208 1500 Spotted (Swine) 1600 Texas Longhorn (Cattle) 1783 Shorthorn (Cattle) 1816 Poland China (Swine) 1817 Hereford (Cattle) 1820 Cornish Cross (Chicken) 1820 Cornish Rock (Chicken) 1823 Duroc (Swine) 1823 Berkshire (Swine) 1825 Hampshire (Swine) 1830 Yorkshire (Swine) 1840 Cochin (Chicken) 1848 Chester White (Swine) 1850 Rhode Island Red (Chicken) 1852 Leghorn (Chicken) 1854 Brahman (Cattle) 1869 White Plymouth Rock (Chicken) 1869 Barred Plymouth Rock 1870 Wyandotte (Chicken) 1873 Angus (Cattle) 1882 Tamworth (Swine) 1884 Minorca (Chicken) 1887 Simmental (Cattle) 1895 Landrace (Swine) 1900 Polled Hereford (Cattle) 1910 New Hampshire (Chicken) 1920 Santa Gertrudis 1936 Charolais (Cattle) 1949 Catalana (Chicken) 1969 Maine Anjou (Cattle) 1970 Gelbvieh (Cattle) 1972 Salers (Cattle)
