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The Growth And Development Of Goose Feathers

Goose feathers are a unique derivative of goose skin that plays a protective role. According to its structure is generally divided into three kinds: orthodontic, feather feathers, fiber feathers. The feathers are the most conspicuous feathers of the goose, and the mature feathers are divided into flying feathers - it includes wings - dead Ji Yu and aileron feathers, tail feathers on the tail; body feathers in the trunk, neck, legs and other parts. The feather is the middle of a feather sleeve, the lower section of the feather root, buried in the skin of the feathers, the upper section of the stems, stems on both sides of the raw feathers, pinna by a number of parallel to each other branches, And born with two rows of small feather branches, small feather branches on a small fishing, intertwined with each other to form a pinna. Velvet feathers do not feather axis, only a very short and thin feather stems, feathers longer, small feathers on the little hook, so like a velvet radiant shot fine velvet, was dome, also known as velvet The In the goose body close to each of the feathers are built with a thin soft feather feathers, it grows in the inner body of the goose body, close to the skin, from the thermal insulation effect. Fibrous feathers are a single herbaceous feathers, Goose Feather characterized by soft and long, mainly born in the front of the plum layer of plumage.

Goose feathers in the composition of protein accounted for 89% -97%, it can be said that goose feathers are composed of protein, in the composition of geese protein in the keratin protein accounted for about 85% -90%. This protein was originally synthesized with the formation of keratin with hair follicle formation. Goose feathers are derived from the skin, the first to form hair follicles, resulting in feathers, feather root and dermis formation of geese feathers nipples, blood vessels into the feathers, feathers are rich in blood vessels and full of gelatin-like material, goose feathers in the growth process In the nutrient needed to supply through the feathers, Goose Feather Yu Lang accompanied by the growth of the feathers and extension. Goose feathers mature, the blood vessels from the upper part of the feathers began to shrink, degeneration, and gradually shrinking to the feathers. Goose feathers are not ripe, feathers filled with blood vessels in the feather market, was red, commonly known as vascular hair. Goose feathers mature due to vascular atrophy, feathers were white.

Geese goose feathers in the fertilized eggs hatch to the first 10 days can be seen with magnifying glass geese feathers were distributed throughout the body part of the body, 14-15 days all the torso villi, the first 17 days of the body with fluff, in the next 13 days The villi continue to grow mature, Goose Feather shelling goslings a golden fluff, there are very thin feathers, only a few small feather branches at the top, the weight is very light, but the warmth is particularly good. The growth rule of goose feathers due to different varieties of geese, the first day of hair change slightly different, such as Lai Chuan too hybrid goose, "wings" age between 55-60 days.

Goose feathers change the process of change, subject to genetic, environmental and nutritional conditions, the amount of protein in the feed, a direct impact on the growth and replacement of geese feathers. In particular, the amount of sulfur-containing amino acids in the feed directly affects the growth and development of goose feathers. Because synthetic keratin mainly rely on sulfur-containing amino acids, namely, leucine and methionine. Tartine is the main ingredient of keratin. Can be directly involved in the synthesis of keratin. Methionine can be involved in the synthesis of keratin by conversion to urethane. Swallow growth should account for about 54% of total amino acids during the growth of goose feathers. After the growth of the goose feathers, Goose Feather the demand for 肮aline can be reduced.

The growth and development of goose feathers is accompanied by the growth and metabolism of the whole body, so in the diet should not only consider the nutritional needs of goose feathers, but also consider the nutritional needs of the whole body, in the nutrient shortage when the feathers grow slowly , But priority over the growth of muscle just S fat, past the habit of raising the hanger in the past, the formation of the body of the goose goose Qi, but the body without meat, before the listing must be friends, this method is not desirable. Geese feathers growth process is normal, can be used to check the feeding and management measures are reasonable, so the masses are very seriously.

Goose feathers can be divided into large tail feathers, large wing feathers, chest, back, body side, tail, neck feathers and feather feathers and other four kinds. After the above-mentioned cleaning and dry feathers can be classified according to their classification. When packing, pay attention to "Flying Si" and "blackhead". "Flying silk" refers to the feathers and feathers from the fall off the broken feathers, the main house when the improper operation of the election. "Blackhead" Wu refers to different color plush. Feather to mouth regulations, "Flying Si" content of not more than 10%, "black" amount of not more than 2%. Therefore, the distribution of goose feathers should try to remove the "Flying Si" and "black".

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