He swung open her door. “This is her nest,” he said proudly. I looked and gulped.

It was a great concrete dome, concrete-floored. Chicken Little filled most of it. She was a gray-brown, rubbery hemisphere some fifteen yards in diameter. Dozens of pipes ran into her pulsating flesh. You could see that she was alive.

Herrera said to me: “All day I walk around her. I see a part growing fast, it looks good and tender, I slice.” His two-handed blade screamed again. This time it shaved off an inch-thick Chicken Little steak. (Ch. 9)

Also [2]:

Scum-skimming wasn't hard to learn. You got up at dawn. You gulped a breakfast sliced not long ago from Chicken Little and washed it down with Coffiest. You put on your coveralls and took the cargo net up to your tier. In blazing noon from sunrise to sunset you walked your acres of shallow tanks crusted with algae. If you walked slowly, every thirty seconds or so you spotted a patch at maturity, bursting with yummy carbohydrates. You skimmed the patch with your skimmer and slung it down the well, where it would be baled, or processed into glucose to feed Chicken Little, who would be sliced and packed to feed people from Baffinland to Little America.

On January 17, 1912, Nobel prize-winning physician Dr. Alexis Carrel placed a part of a chicken's embryo heart in a nutrient medium in a glass flask of his own design. Every forty-eight hours the tissue doubled in size and was transferred to a new flask. Twenty years later, it was still growing.

In his 1941 story Methuselah's Children, Robert Heinlein paid homage to his work by referring to the famous chicken as a research tool for the long-lived Howard Families:

Lazarus found her servicing the deathless tissue of chicken heart known to the laboratory crew as "Mrs. 'Awkins." Mrs. 'Awkins was older than any member of the Families save possibly Lazarus himself; she was a growing piece of the original tissue obtained by the Families from the Rockefeller Institute in the twentieth century, and the tissues had been alive since early in the twentieth century even then. Dr. Hardy and his predecessors had kept their bit of it alive for more than two centuries now, using the Carrel-Lindbergh-O'Shaug techniques and still Mrs. 'Awkins flourished.

[1] http://wutheringexpectations.blogspot.nl/2012/08/this-is-her...

[2] http://www.technovelgy.com/ct/content.asp?Bnum=1002