 The color of Naturalean composites or crossbred cattle can be solid black or solid red with black or reddish pigmentation in the same areas as the pigmentation on fullbloods . They may be horned or polled , and homozygous ( 2 copy ) , or heterozygous ( 1 copy ) . Fullbloods and Naturalean bulls are often crossed with traditional beef breeds like Black Angus or Hereford cattle because of substantial benefits in the crossbred results , including a higher protein meat that is lower in saturated fat , improved tenderness , and an approximate 7 % yield increase in salable carcass . Calving problems are also reduced in the crossbreds . 
