Assuming you are talking about birds kept for food. livability is the main thing. But you also want good growth and fast maturity, -without causing the bird physical harm.
Around 6 weeks.
Desirable features mean features that are beneficial to the organism. That is, an organisim with these features has a higher chance of survival as it is better adapted to it's environment.
Broilers are chickens both male and female that will be slaughtered for meat at about 5 to 8 months old depending on weight. Broilers are raised to produce meat. Typically a broiler is fed a diet high in calories, often corn, to quickly bring it to market weight. The younger the bird at optimum weight the more tender the meat.
Yes, ovens with broilers are still sold.
In a natural monopoly, the conditions of the market make unified control necessary or desirable to the public interest.
About 8 billion broilers are raised per year.
If your broilers are molting, they're only good for soup.
The Broilers - 1920 was released on: USA: 27 November 1920
gumball who ivented high pressure steam broilers
Clarence Harris has written: 'Improved methods and facilities for packing broilers' -- subject(s): Poultry plants, Packing, Broilers (Poultry), Design and construction 'Methods and facilities for grading broilers and turkeys' -- subject(s): Grading, Broilers (Poultry), Turkeys
No
Georgia, Arkansas, Alabama, and Mississippi were the top four producers of broilers in 2001