How many times a year is bird s nest produced? How many eggs a year does a swallow make bird s nest

Bird's nest is produced three times a year, and the swallows that make bird's nest only lay eggs once a year. For the first time, it is the first bird's nest.

Bird's nest has always been classified as a high-end tonic, and it is a bird's nest that grows in the waters of Southeast Asia (Indonesia, Malaysia, Thailand) and likes to live in groups in stone caves on the cliffs of Hainan. People take this kind of bird's nest down, and after refining and sorting, it becomes a precious bird's nest.

It is distinguished by the season of collection.

The harvest season for bird's nest is generally from February to October every year.

The bird's nest harvested in February and April is suitable for insect reproduction due to the rain, and the swiftlet has sufficient food and saliva secretion, so the bird's nest is complete, has good gloss and less hair, and we often call it "the first bird's nest".

Bird's nests harvested in May and October are called"Phase II Swallow"At this time, it is the moulting period of swiftlets, so the nest built is relatively loose, and the shape of the nest is not as good as that of the first bird's nest, and there are more fluff impurities.

The swallows that make bird's nest only lay eggs once a year.

This nest is made before laying eggs, and this nest is made by sticking various algae together with secretions from the throat. When the first nest is plucked, it makes a second nest, and when the second nest is plucked, it makes a third nest, but when the third nest is made, the mucus secreted in the throat has already begun to blood, so that the third nest can be barely completed. This is how the blood bird's nest is known as it came about.

When the third nest is picked, the pair will not be able to breed this year because they are no longer able to make a fourth nest.

So it's better not to eat any bird's nest, how cruel this is for swallows!!

I don't know how long they live.

According to the color of the bird's nest, it is white bird's nest and golden yellow bird's nest.

Bird's nest is formed by the saliva secreted by the well-developed mucus glands in the throat of the swiftlet condensed into a solid in the air, and it is a bird's nest built by spitting after digesting the insects, seaweeds, whitebait and other substances that the swiftlet feeds on, which is white, so it is called white swallow. Some of the bird's nests picked from the cave also have a golden yellow color, and the reason for its formation is mainly believed to be the result of the combined action of the environment where the bird's nest is located, such as air, humidity, rocks, etc., and this part of the bird's nest is called golden swiftlet. It is generally believed that the golden swiftlet is rich in minerals and has a higher nutritional value than the white swiftlet.

According to the production form of bird's nest, it is divided into hairy bird's nest and grass bird's nest.

The name of the bird's nest comes from the fact that after the bird's nest is picked, it has not been processed or treated, and it presents a form mixed with some bird's feathers. Bird's nest is mainly processed into bird's nest, bird's nest strips, and bird's nest horns. The grass nest is mainly nylon grass, and the edible part of the bird's nest has many impurities and a rough taste.

Grass swiftlets are mainly processed into crushed swiftlets, bird's nest cakes, etc.

According to the sales form of bird's nest, it is divided into bird's nest, bird's nest sticks, bird's nest crushed, bird's nest cake, and bird's nest horn.

Bird's nest is a bird's nest that has been cleaned, picked, shaped and dried to achieve the standard of few impurities and can be stewed normally, which basically maintains the original shape of the bird's nest. Since there is no unified standard in the bird's nest industry, different merchants divide bird's nest into different grades according to quality, such as dragon tooth cup, Tianzhen cup, first-class bird's nest and second-class bird's nest. Guan Yan and others.

Some of the bird's nest strips, bird's nest pieces, bird's nest cakes, and bird's nest horns are formed during the process of cleaning, picking, shaping, or processing, and their nutritional value is equivalent to that of bird's nest; And some are made by processing grass swallows. Its nutritional value is comparable to that of bird's nest, but it is different in appearance.

Bird's nest is a nest made of swiftlets, can not be eaten directly, qualified bird's nest needs a lot of processes to be assured to eat, upyim bird's nest needs to go through grading and sorting, cleaning, testing, picking, air drying, quality inspection, packaging sticky traceability labels, entry system and other processes, the whole process of manual operation, no preservatives, no bleaching, no glue, no sticking, so that the products produced can enter our table.

In 2010, 1,514 tons of bird's nest were produced globally, with more than 67% in Indonesia and more than 23% in Malaysia.

Affected by the blood bird's nest incident in 2011, the production of bird's nest did not increase significantly in the following years. In 2016, edible bird's nests in Indonesia were sold for between USD 1,000-10,000 kg.

Main production areas. The main production areas of the nest are from the Philippines in the east to the caves of deserted islands near the coast of Myanmar in the west, and most of them are in the waters of Southeast Asia such as Indonesia, Malaysia, Sandakan, Singapore and Thailand, as well as the islands of the South China Sea. Among them, Indonesia has the best quality of bird's nest due to the weather and environment that is most suitable for swallows to live, and Indonesia's bird's nest production is also the largest, followed by Malaysia.

According to statistics, as of the end of 2010, Indonesian bird's nest accounted for 85%-90% of the world's bird's nest production, Malaysia accounted for 5%-10%, Thailand 3%, Vietnam, the Philippines and other places about 2% (refer to the data of the Hong Kong ** Department for several years). A subspecies of Javanese swiftlet, cfuciphagagem ani, has been found on the island of Yannan Dazhou to produce edible bird's nests.

Swiftlets are produced in southwestern China and southeastern Xizang, and the earliest well-documented works are "Materia Medica" and "Benjing Fengyuan". There are six species of swiftlets that produce bird's nests because the saliva secreted by various birds of the genus Collocalia in the family Apodidae is mixed with their down and condensed on cliffs or farmhouses.

The world's annual production of bird's nest is currently around 1,200 tons, and swiftlets are the birds that produce bird's nests, which are only distributed in the Malay Archipelago. At present, Indonesia is the largest producer of bird's nest, accounting for more than 65% of the total output of the station, followed by Malaysia with about 30%. A small number of producing countries are Vietnam, Thailand, etc.

The output of bird's nest is about 600 tons, and the general swiftlet makes about 3 nests a year, and with the management and picking that can be done now, this yield is still on the rise year by year.

About 600 tons!

Properly harvested and managed.

The volume is also growing year by year.

Bird's nest is made by swiftlets to secrete their own saliva and feathers mixed with soil to make a nest, waiting for the nest to dry, after processing and refining to produce delicate and dense bird's nest, bird's nest can be divided into white bird's nest, yellow bird's nest and blood bird's nest according to the color, according to the shape can be divided into hairy bird's nest and grass bird's nest.

Formation of bird's nest.

1. Bird saliva.

Bird's nest is formed by the saliva of birds, mainly through the bird's nest called swiftlet, which mixes its own saliva and feathers with mud and other soil to form a bird's nest, and places it on the cliff, waiting for the saliva in the nest to be air-dried, and then refines and selects the bird's nest with excellent luster and ivory white appearance.

2. Color classification.

Bird's nest is classified according to the color of white swiftlet, yellow swallow, blood bird's nest, among which white swiftlet is a bird's nest built by swiftlets that prey on insects, seaweed and other foods after digestion and spit out white saliva, yellow bird's nest is caused by the air environment, and blood bird's nest is because the food eaten by swallows has a high mineral content, resulting in red saliva.

3. Morphological classification.

Bird's nest is divided into hairy bird's nest and grass bird's nest according to the morphology, of which the bird's nest refers to the bird's nest that has not been processed or treated, and the bird's nest doped with bird's nest is mainly processed into bird's nest, bird's nest strips and bird's nest horns, while the grass bird's nest can be used in rough parts and is mainly processed into bird's nest crushed and bird's nest cakes.

Grows in caves, along the cliffs of the coast. This is the most primitive form of bird's nest. The cave swallow is gray or yellow in color, with more feathers and impurities, and the taste is more refreshing.

Due to the early indiscriminate mining, the living environment of swiftlets was destroyed, and the yield of cave swiftlets decreased year by year, and the yield of cave swiftlets was very low. With the rising call for environmental protection, people have actively changed the living environment of swiftlets and the environment for picking bird's nests.

Subsequently, the cave nest was gradually replaced by the house nest. The environment for picking house swiftlets has changed from caves and cliffs to artificial houses suitable for swiftlets to nest, but it has not changed the living habits of swiftlets. The combination of nature's primeval forest environment and artificial house technology effectively solves the contradiction between swiftlet protection and bird's nest production, forming a unique original house nest.

House nests are whiter in color, loose in quality, less hairy and smoother in taste. If the hygiene conditions of the swallow house are well controlled, the house bird's nest will be relatively clean and the color will be more desirable, while the cave bird's nest may have more sand, soil and other substances.

Bird's nest, also known as bird's nest, is a nest and nest made up of mucus and down feathers secreted by the gastric digestive glands after swiftlets and swallows of the same genus eat small fish, seaweed and other organisms in the sea, and are mostly built on the cliffs of the island.

Bird's nests are generally produced in the southern coastal areas of China, Vietnam, Thailand, Malaysia, Indonesia and the Philippines. Bird's nests are divided into two types: house nest nest and cave nest according to the place where the nest is built. The nest of the house swiftlet is generally built on the bird's nest house specially built by hand, the purpose is to facilitate the collection of bird's nests, while the nest of the cave swallow is built in the cave, the terrain is steep, and the collection is quite dangerous.

Bird's nest is not a rare thing, ** expensive, Indonesian bird's nest accounts for the world's bird's nest production Malaysia accounts for Thailand, Vietnam, the Philippines and other places. The places where bird's nest is produced in China are: Yanyan in Huaiji County, Zhaoqing City, Guangdong, Yanzidong in Jianshui County, Honghe Prefecture, Yunnan, and Dazhou Island in Hainan (the island has been sealed for protection).

The production of bird's nest in China is very small.

Due to the proximity to the Tropic of Cancer, bird's nest mining has a strong seasonality, the output is scarce, and the total amount of bird's nest is less than 1/10,000 of the global bird's nest production. It is expected that there will be no significant change in domestic bird's nest production in the next few years.

At present, the product forms of bird's nest are mainly dried bird's nest, ready-to-eat bird's nest and freshly stewed bird's nest. Different types of bird's nest processing processes are different, as shown in the figure below, according to the technical development route, the technology of the bird's nest industry is now divided into basic technology, deep processing technology and biotechnology: the basic technology mainly includes cleaning and sorting, soaking, stewing, etc.; The deep processing technology mainly includes sterilization and packaging, nutrition preservation, taste blending, etc.; Biotechnology is the application of enzymatic hydrolysis technology, extraction, separation and other means of deep processing of bird's nest, which is widely used in food, medicine, cosmetics and other fields.