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The Welsummer or Welsumer is a Dutch breed of domestic chicken. It originates in the small village of Welsum, in the eastern Netherlands. It was bred at the beginning of the twentieth century from local fowls of mixed origin: Rhode Island Reds, Barnevelders, Partridge Leghorns, Cochins, and Wyandottes. In 1922–23, steps were taken to fix a ...
The village is the source of the Welsummer chicken breed. In 2001, a number of farms culled their flocks in connection with the outbreak of foot-and-mouth disease. The earliest existing written mention of the village (as Wilsum, kerspel Olst) dates from 1295. [3] The tower of the Protestant church was built around 1475.
The vaccine can be administered to one-day-old chicks through subcutaneous inoculation or by in ovo vaccination when the eggs are transferred from the incubator to the hatcher. In ovo vaccination is the preferred method, as it does not require handling of the chicks and can be done rapidly by automated methods. Immunity develops within two weeks.
Figure 1. Feathering types in ten-day-old chicks.Left: Fast normal-feathering chick. Right: Delayed-feathering chick carrying sex-linked K gene. Delayed-feathering in chickens is a genetically determined delay in the first weeks of feather growing, which occurs normally among the chicks of many chicken breeds and no longer manifests itself once the chicken completes adult plumage.
Illustration of thirty-nine varieties of chicken (and one Guinea Fowl) . There are hundreds of chicken breeds in existence. [1] Domesticated for thousands of years, distinguishable breeds of chicken have been present since the combined factors of geographical isolation and selection for desired characteristics created regional types with distinct physical and behavioral traits passed on to ...
Some 10-year-olds sell cookies and lemonade to earn a bit of spending cash, but not Kinley Maner. Kinley, from Thatcher, Arizona, is earning money by raising and selling chickens at the local fair.
The chicken breeds recognized by the American Poultry Association are listed in the American Standard of Perfection. They are categorized into classes: standard-sized breeds are grouped by type or by place of origin, while bantam breeds are classified according to type or physical characteristics .
One-day-old chicks arriving to be unpacked and placed in shed Artificial selection has led to a great increase in the speed with which broilers develop and reach slaughter-weight. [ 2 ] Selection and husbandry for very fast growth means there is a genetically induced mismatch between the energy-supplying organs of the broiler and its energy ...
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