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2. Egg incubation - Wikipedia

   en.wikipedia.org/wiki/Egg_incubation

   Egg incubation is the process by which an egg, of oviparous (egg-laying) animals, develops an embryo within the egg, after the egg's formation and ovipositional release. Egg incubation is done under favorable environmental conditions, possibly by brooding and hatching the egg.

3. Poultry farming - Wikipedia

   en.wikipedia.org/wiki/Poultry_farming

   The dual-purpose chicken selected by the Lohmann group, the “Lohmann Dual”, [50] is raised in Switzerland by a few breeders, and the Coop network decided to launch the experiment with a test on 5,000 poultry, although knowing that instead of producing up to 300 eggs per year like very good laying hens, it will only produce around 250 eggs ...

4. Chicken - Wikipedia

   en.wikipedia.org/wiki/Chicken

   Chickens are common and widespread domestic animals, with a total population of 26.5 billion as of 2023, and an annual production of more than 50 billion birds. A hen bred for laying can produce over 300 eggs per year. There are numerous cultural references to chickens in folklore, religion, and literature.

5. Egg - Wikipedia

   en.wikipedia.org/wiki/Egg

   Six commercial chicken eggs — view from the top against a white background. An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the animal hatches.

6. How to Raise Chickens: An Easy-to-Follow Guide for Beginners

   www.aol.com/lifestyle/raise-happy-chickens...

   Nesting Box Hens crave privacy and darkness when laying eggs, so plan for at least one nesting box for every four or five hens. A box that measures 14"W-by-14"H x 12"D will give even a big gal ...

7. Chick culling - Wikipedia

   en.wikipedia.org/wiki/Chick_culling

   [1] [2] Worldwide, around 7 billion male chicks are culled each year in the egg industry. [3] Because male chickens do not lay eggs and only those in breeding programmes are required to fertilise eggs, they are considered redundant to the egg-laying industry and are usually killed shortly after being sexed, which occurs just days after they are ...

8. Why do brown eggs cost more than white eggs? Blame the bird - AOL

   www.aol.com/why-brown-eggs-cost-more-120028033.html

   Some breeds such as White Leghorn chickens lay eggs with white shells while other breeds such as Rhode Island Reds lay eggs with brown shells. According to Brey, the cost and taste of the egg you ...

9. Animal embryonic development - Wikipedia

   en.wikipedia.org/wiki/Animal_embryonic_development

   Depending on the animal species, the process can occur within the body of the female in internal fertilization, or outside in the case of external fertilization. The fertilized egg cell is known as the zygote. [2] [5] To prevent more than one sperm fertilizing the egg , fast block and slow block to polyspermy are used. Fast block, the membrane ...