C h a n g i n g t h e c h i c k e n Did you know that wild chickens are very different to the chickens we see on farms?
l w o f e I l g a n m u a j j u a n g l e m f o w a l I I am a wild chicken. I live in the forests of Asia. I like to live in small groups, sleep in low branches, and lay around 30 eggs each year.
Around 4,000 years ago humans began changing the chicken by choosing to breed from the ones they liked best. We changed chickens in lots of different ways…
We put most of our energy We are laying hens into laying lots of eggs. I was hatched in I was hatched in I was hatched in 1900. I lay around 1930. I lay around 2016. I lay around 120 eggs each year. 250 eggs each year 350 eggs each year
We grow quickly and We are broiler chickens get very large to produce a lot of meat. I was hatched in 1978. I was hatched in 2016. I was hatched in 1957. I am 8 weeks old. I am 8 weeks old. I am 8 weeks old. I weigh 1,808 grams I weigh 4,202 grams I weigh 95 grams Growth, efficiency, and yield of commercial broilers from 1957, 1978, and 2005, M. J. Zuidhof B. L. Schneider V. L. Carney D. R. Korver F. E. Robinson, 2014
We are pure breed chickens We are kept for pets and competitions because of our fancy looks. I am a Silkie. I have blue I am a Polish hen. I have I am a Frizzle. I have skin and fluffy feathers. a pom pom on my head! fancy, flicky feathers.
We are pure breed chickens We are kept for pets and competitions because of our fancy looks. I am an Ayam Cemami. My I am a little Pekin. I have I am a Wyandotte. I bones, skin, and feathers fluffy slippers! have lacy feathers. are completely black.
Can you think of any other animals that have been changed by humans? What do you think is good about changing ani- mals in this way? What problems might there be? Do you think humans will continue to change chickens in the future?
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