What is the difference between a breed a variety a strain and a class

Jungle chicken of prehistoric era first raised as domestic bird in some area like Malay and Java of south east Asia. Then people used to hunt bird form jungle for meat and raise them at home for chicken fight as a source of entertainment.

It is thought that, modern chicken originated from red jungle chicken of that time. About class, breed, variety and strain of chicken are described below. Chicken originated from a certain place with same or similar characteristics are of same class. For example, Asiatic class, European class, American class etc.

Under class, chicken with same size, shape and characteristic similarity with each other are of same breed. Like, Leghorn , Minorca etc. Variety is detected by feather color, heat crest or other physical characteristics within a breed. Inbred - The offspring of closely related parents; resulting from inbreeding. Incrossbred - The offspring from crossing inbred parents of the same or different breeds. Layers - Mature female chickens kept for egg production; also called laying hens.

Pullet - A female chicken under one year of age. Purebred - The offspring of purebred parents that are of the same class, breed, and variety. Roaster - A young meat-type chicken, usually 3 to 5 months of age, of either sex, that can be cooked tender by roasting, and usually weighing 4 pounds or over. Sexed chickens - Day-old chicks with the males and females separated. Started pullets - Female chickens that are partially grown, usually to point of lay that is about 20 weeks of age, by specialized growers for sale to egg farmers.

Straight-run chicks - Day-old chicks that have not been separated according to sexes. Strain - A group of birds within a variety that has been bred by one person or firm for some time and has more or less uniform characteristics and capabilities.

Strain cross - The offspring of parents of two or more different strains belonging to the same variety. Stewing chicken - A mature female chicken, usually more than 10 months of age; that requires moist, pressurized, or extended cooking; also called hen or fowl. Variety - A subdivision of a breed, distingushed by color, color pattern, or kind of comb.

Words about the anatomy of chickens Beak - The bird's bill; the protruding mouthpart of a bird. Cloaca - The vent or common opening in birds through which the intestinal, urinary, and reproductive tracts empty.

Comb - The fleshy, red outgrowth on top of a chicken's head; there are eight types of combs. Earlobes - The fleshy patch of bare skin below the ears varying in size and shape with the color red, white, blue, or purple, according to the breed. Gizzard - An internal organ of birds. It has thick muscular walls and a tough lining.

It crushes and grinds foods by muscular action and with pebbles or grit. Infundibulum - The funnel end of the oviduct that picks up the yolk when it is released from the ovary; the area in which fertilization of the true egg takes place; also called funnel.

Isthmus - The section of the oviduct next to the magnum where the water and mineral salts are deposited and the inner and outer shell membranes are formed. Magnum - The section of the oviduct next to the infundibulum; the area in which the thick white is deposited and the shape is formed.

Ovary - The organ of the female which holds the true eggs and produces the yolks on which the true eggs are located. Oviduct - The organ of the female birds that puts the albumen, shell membranes, and the shell of the avian egg around the yolk. Ovum - The female germ cell; plural form is ova. Pituitary gland - A small kidney-shaped gland located at the base of the brain that produces hormones involved in sexual maturity, the maturation and release of yolks, and egg laying. Beltsville small white turkey.

White holland. Japanese quails. Guinea fowl. Comb varieties. Single and pea comb. Pea, walnut and cushion comb. Cap and cup comb. Feather types. Feather tracts. Presentation - Breeds of poultry. Avian Production Management You are currently using guest access Log in.

They are American, Asiatic, Mediterranean and English. Breed - refers to an established group of birds within a species related by breeding, possessing a distinctive shape, conformation, plumage colour, comb type, general body weight and breeds true.