The Growth And Development Process Of Goose Feather


The goose's body is tightly covered with goose feathers that cling to the body. The goose feathers of the large goose are more loose. The goose feathers of medium and small goose are tighter. Goose feather Feathers According to its different parts, down the different shape and structure, the goose feather is divided into positive feathers, velvet feather and fiber plume, velvet feather 4 species. The positive plume is the most goose feather on the body surface. Goose is a waterfowl, feather abundant velvet thick, especially the velvet feather is more developed, commonly known as goose feather noded under the feather. The fiber plume is mixed in the positive feather, Goose Feather the filament feather is slender as wool, therefore also the name hairiness, the feather axis is hard, the thermal insulation performance is poor. Velvet feather between the feather and feather plume, it is also known as the Half Velvet feather, the upper part of the feather, the lower part is a relatively sparse velvet feather. Goose Feather Goose feather Color Depending on the variety of geese, there are 2 of white and gray varieties. The white feather variety is more, the north of our country and South East Goose is more, the south is more common with the gray Goose, the goose is less. From the surface of the goose body is feathered, in fact, goose feathers are born in a certain area of the body surface. The Goose feather area is called the feather area, but the raw goose feather area is called the bare area. At the same time, the proportion of each part of goose feather is different, Goose Feather according to the department concerned, the December age Wanxi white Goose in spring slaughter results: The average goose produced down weight of 6.34%, 285 grams, chest, abdomen, back, legs and neck accounted for 18.12% of the total down. 10.59%. 24.43%. The weight of 4.69% and 12.85% is 51 in turn. 63 grams, 30.18 grams, 69.63 grams, 13.38 grams and 36.63 grams, Goose Feather back chest down production more, less legs.

Goose feathers in the fertilized eggs hatch to the 10th day can be used magnifying glass to see the base of goose feathers throughout the body part, paras days all the trunk has fluff, the 17th day of the whole body has fluff, in the next 13 large villi continue to grow mature, Goose Feather out of the shell of the young Goose a golden fuzz, have very fine feather stems, The top only a few small feather sticks, the weight is very light, but warm sex is very good. The growth regularity of goose feathers in goose stage due to the different breeds of goose, Goose Feather the age of the 1th time change is slightly different, for example, Lakiang is too hybrid goose, the "Fin" day age is about 55-60 days.

The change process of goose feather is influenced by heredity, environment and nutrition condition, and the content of protein in feed directly affects the growth and replacement of goose feather. In particular, the amount of sulfur-containing amino acids in feed directly affects the growth and development of goose feathers. Goose Feather Because the synthetic keratin mainly relies on the sulfur-containing amino acid, namely the glycine and the methionine. Niacin is the main ingredient of keratin. Can directly participate in the synthesis of keratin. Goose Feather Methionine is involved in the synthesis of keratin by converting to a clean ammonia acid. During the growth of goose feather, it should account for about 54% of the total flow of amino acid. The demand of the niacin can be decreased when goose feather grows mature.

The growth and development of goose feathers is accompanied by the growth and metabolism of the whole organism, therefore, in conjunction with the diet not only to consider the nutritional needs of goose feathers, Goose Feather but also to consider the nutritional needs of the whole body, when the lack of nutrition goose feather growth slow, but priority to the growth of muscle just s fat, in the past rural customary feeding method hanging shelves, The formation of the shelf goose body hair, but no meat on the body, before the listing must be bred friends, this method is not advisable. The growth of goose feathers is normal, can be used to check the management measures are reasonable, so the masses are very attached.

The composition of goose feathers accounted for 89%-97% of the protein, it can be said that goose feathers are composed of proteins, in the composition of the goose feather protein accounted for about 85%-90%. The protein is initially synthesized with the formation of a follicle and keratin. Goose feathers are derived from the skin, forming a hair follicle first, producing a plume, feather root end and dermis form goose feather nipple, blood vessel thus enter feather pith, feather stuffing has rich blood vessel and full of gelatin-like material, goose feather in the growth process need nutrition, through the feather blood supply, feather lang along with goose feather grow and extend. After the goose feathers mature, the blood vessel starts to atrophy from the upper part of Goose feather, degenerates, gradually the movement shrinks to the feather root. Goose feathers are not mature, the plume is filled with blood vessels in the plume, red, commonly known as capillary hair. The feather is white because of the atrophy of blood vessels after mature goose feathers.