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Poultry farming is the form of animal husbandry which raises domesticated birds such as chickens, ducks, turkeys and geese to produce meat or eggs for food. Poultry – mostly chickens – are farmed in great numbers. More than 60 billion chickens are killed for consumption annually.
Broiler chicks. The broiler industry is the process by which broiler chickens are reared and prepared for meat consumption. Worldwide, in 2005 production was 71,851,000 tonnes. From 1985 to 2005, the broiler industry grew by 158%. [1] A key measure of performance is the feed conversion ratio (FCR), the ability to convert feed into edible product.
Egg incubation. A female mallard duck incubates her eggs. 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.
Domestic duck. Domestic ducks (mainly mallard, Anas platyrhynchos domesticus, with some Muscovy ducks, Cairina moschata domestica) are ducks that have been domesticated and raised for meat and eggs. A few are kept for show, or for their ornamental value. Most varieties of domesticated ducks, apart from the Muscovy duck and hybrids, are ...
List of duck breeds. This is a list of the breeds of domestic duck which have official recognition at national or international level. [1] Most breeds of duck derive from the wild mallard, Anas platyrhyncos, while a small minority are descendants of the Muscovy duck, Cairina moschata. Duck breeds are normally officially recognized and described ...
Breeding. Pseudotropheus sp. "acei" is an ovophile mouth brooder, which means that the female will incubate and hatch the eggs in her buchal pouch, and then continue to hold the fry until the yolk sacs have been consumed. A typical holding period for this cichlid is three weeks, and the female will not eat during this time.
The Pekin or White Pekin is an American breed of domestic duck, raised primarily for meat. [6][7] It derives from birds brought to the United States from China in the nineteenth century, [8] and is now bred in many parts of the world. [6] It is often known as the American Pekin to distinguish it from the German Pekin, a distinct and separate ...
The down of birds is a layer of fine feathers found under the tougher exterior feathers. Very young birds are clad only in down. Powder down is a specialized type of down found only in a few groups of birds. Down is a fine thermal insulator and padding, used in goods such as jackets, bedding (duvets and featherbeds), pillows and sleeping bags.