6 The Colorado Experiment Station. 
white hogs by keeping them in pastures having heavy shade. 
The Berkshire is hardy and active, adapting itself to any con¬ 
dition suitable for raising hogs, and may be developed either into a 
bacon or a lard hog, according to the feed given. 
It is more energetic than some of the other breeds, and on this 
account requires a better fence. Its activity makes it a good hog 
for pasturing and for following cattle in the feed lot, and this 
gives it a well developed muscular system that furnishes a good 
proportion of lean in the meat. 
The Berkshire is a good feeder, matures early and may be 
fattened at almost any desirable age. 
The sows are careful mothers and good sucklers. Originally 
THE DUROC-JERSEY. 
Prize Winning Duroc-Jersey.* 
the Berkshire was very prolific, and many strains are productive 
today. Some families have been bred to concentrate the blood 
lines of prize-winning animals until they have become shy breeders, 
and in selecting animals for breeding, especial attention should be 
given to securing those with prolific ancestors on both sides. The 
Berkshire is strong in transmitting characteristics to the offspring. 
The Berkshire is an! attractive hog, black with white on face, 
feet and tip of tail. Its head, nose and legs are short, and for this 
reason the breed is a prime favorite with packers because of the 
small per cent, of waste from these cheap parts. The fat and lean 
are well distributed in the meat, making a high quality of pork. 
The Duroc-Jersey is a typical lard hog of good length with a 
♦Owned by C. P. Burke, Rocky Ford, Colorado. 
