What is the duck CRESTED?

Home ducks called Crested Ducks descend from Mallard and have a mutated gene that causes feathers to hatch from the top of their heads. The ridge represents the deformity in the skull, where a piece of fat protrudes through the bone opening. The feathers hatch from this tissue in different quantities that could range from several Wisps to a full ridge that resembles a powder. The two main types of corridors are black and white varieties, but the crossing produces gray and other colors.

Breeding Crosted Duck can be difficult, because the gene responsible for the deformity causes about one quarter of the eggs to die before hatching if both parents bear the gene. Another 25 percent of ducklings may die after hatching because their brains are exposed. If only one parent carries a mutated gene, half of the ducks that survived will be chop. Eggs hatch in 28 days.

Crosted duck was created in the UK and existed for Thousands of Years. It can be kept with any other duck, with the exception of Musc. In someThe parts of the world are bred for an exhibition, with large, symmetrical combs considered desirable. Some people increase these rapidly growing ducks for eggs or meat, while others keep them as pets.

Practice breeding duck for show can be banned in some regions because studies show coordination problems in this kind. One study showed that the size and placement of oily lumps creates smaller brains and olfactory holes in offspring. The number of feathers on the ridge has no effect on the coordination restriction.

Some ducks can not get up if they fall on their backs. They could walk or walk with a distinctive walk that testifies to coordination problems. One research study developed a test to identify birds with these defects so that breeders can remove them by selective breeding. People who buy corridors can use the testto identify a healthy supply for the best breeding.

scientists have found that some ducks need more than a minute to turn their feet after being placed on their backs. These ducks had more greasy tissues in their skulls. Birds intended for breeding should be remedied in one or two seconds, ending scientists.