In recent years cattle breeders have increasingly used crossbreeding, in part that their steers should acquire certain characteristics and partly because crossbreeding is said to provide hybrid vigor.

• Ain part that their steers should acquire certain characteristics  
• Bin part for the acquisition of certain characteristics in their steers  
• Cpartly because of their steers acquiring certain characteristics  
• Dpartly because certain characteristics should be acquired by their steers  
• Epartly to acquire certain characteristics in their steers