What are the characteristics of chicken?

(1) The head of a chicken has a crown, and there are many kinds of crowns, which is an important feature of the foot breed. Modern laying hens are mostly single-leaf crowns, and a few are bean crowns. In a variety, the rooster's crown is always bigger and thicker than the hen's crown, so breeders should cut the stirrup before the first age. Chicken beak, called bird beak, is an organ for pecking and self-defense. There are no teeth in it, and the beak is generally the same color as the toe, which is another special grip for L to feed seeds. Laying hens have a delicate face, no fat accumulation, and are generally red. The lower jaw R has a pair of drooping flesh, and the cock's is bigger. Ear hole f has ear leaves, and the color varies with varieties. Common ones are red or white. There are bristles on both sides of the cheeks, which are called beards.

(2) The hair on the front of the neck has the primary characteristics, the tail end of the hen's neck feather is round and blunt, and the tail end of the rooster's neck feather is as sharp as a comb.

(3) The body is divided into three parts: chest, abdomen and waist. The chest is where the heart and lungs are located. Be broad, step on it, be developed, have strong cohesion, and have plenty of meat. The abdomen accommodates the digestive organs. As a laying hen, its abdomen is bigger and its egg-laying ability is stronger. The waist of a chicken is called a saddle, and the hairy male hen on the saddle is different, which is characterized by many varieties and different sexes.

(5) Feather (~ 1-32) Chickens are birds and are covered with feathers. Feathers are divided into normal feathers, down feathers and hairiness. Positive feather, also called sheet feather, consists of feather, secondary feather, feather stem and feather root. Chicken forelimbs are wings, and there are wing feathers (10), axial feathers (1) and aileron feathers (moving ll) from the end to the body. Wing feathers are characterized by long, narrow and pointed feathers, and the two sides of the feather axis are asymmetrical. Aileron feathers are short, wide, round at the end and symmetrical. There is a covered wing feather above each main wing feather. The reason why the fast and slow feathers are different is because the lengths of the two wings are different. When chicks hatch, they are covered with hairy feathers, and flaky feathers appear earlier than wings. The first molting is completed around 4 weeks old, and young feathers are replaced around 16 weeks old, and adult feathers grow. After that, they naturally shed their skin every autumn. When the main wing feathers molt, the chicken electricity will stop production during the laying period. The cock's neck feathers are also called cockscomb feathers (hen's neck feathers), and the feathers hanging from the back and waist to both sides are called withering feathers (hen's saddle feathers). There are obvious differences between the two kinds of feathers of male hens. Cocks are characterized by being long, narrow and sharp at the end. The characteristics of hens are short, wide and round tail, which can be shown when they are about 2-3 months old. The hen's tail has only the main tail feather and the covered tail feather, and the cock's main tail feather is covered with curved and upturned feathers. Besides. Cocks are gorgeous and beautiful in feathers, big and majestic in size, and as long as hens when they grow up.

Edited on 2019-11-08.

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What are the characteristics of chicken?

Chicken is a kind of poultry. Domestic chickens originated from wild chickens, and the domestication history was at least about 4000 years, but it was not until about 1800 that chickens and eggs became mass-produced commodities. The types of chickens are turkey, black-bone chicken, pheasant and so on. Moreover, chicken is also an animal sign in the 12 zodiac. The ancient Han nationality had the custom of "killing chickens", which was popular in Jinhua and Wuyi areas of Zhejiang Province. On the seventh day of July every year, local people will live there, because the Cowherd and the Weaver Girl will meet at Queqiao that night. If there is no rooster to announce the dawn, they will never part. Tujia people call kicking shuttlecock "kicking chicken". During the Spring Festival, young men and women kick chickens together. One person kicks the "chicken" and everyone fights. Whoever receives the "chicken" can chase anyone with grass. Young men and women often chase their lovers with grass. In the future, "kicking the chicken" will become the medium of love. On October 1st of the lunar calendar, some places in Henan will kill chickens to scare ghosts. Legend has it that Tomb-Sweeping Day will collect the terrible release ghosts in the coming year. People think that ghosts are afraid of chicken blood, which can ward off evil spirits, so they kill chickens on October 1 to scare ghosts and make little devils afraid to come out. As the saying goes, "Kill chickens in June 1." China chicken culture has a long history and rich connotations. In the first phase of Dadiwan culture in Xishanping, Tianshui, Gansu, the word "chicken" has been found in Oracle Bone Inscriptions, China about 8,000 years ago, which shows that China knew about chickens more than 3,000 years ago. Chicken raising in China has a history of 8,000 years, and the recorded history is at least 3,000 years. It is one of the earliest countries to raise chickens in the world, and it is also the first country to discover that chickens have various medicinal values. In the traditional culture of China, dragons and phoenixes are both deified animals, while chickens are a kind of spirit birds with extraordinary life experiences. For example, the image of phoenix comes from chicken. Taiping Yulan: "At the time of the Yellow Emperor, the phoenix was a chicken." Legend has it that chickens are Japanese, China and Ukrainian, and crowing at sunrise brings light and can drive away monsters.

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What are the characteristics of chicken?

(1) The reproductive system of cock is composed of testis, epididymis, vas deferens and degenerated penis (Figure 1-7). ① Testicle and epididymis: The cock's testicles are a pair, bean-shaped, located at the upper ends of the last two ribs in the abdominal cavity, and hung on the ventral sides of the kidneys with a short mesentery. Chicken testicles are as big as rice grains and pale yellow; Adult chickens, especially in the breeding season, can reach the size of pigeon eggs. Chicken epididymis is small, undeveloped and long spindle-shaped, located at the dorsal medial margin of testis. ② vas deferens: Located on both sides of the spine, they are two curved tubules parallel to the ureter, and their ends open in the cloaca to form an ejaculatory duct. ③ Connecting device: The mating organ of cock is underdeveloped, and its penis degenerates into an erection connector. The connector consists of circular folds and leucosome on the upper wall of cloaca. Chickens have prominent nipples, which are obvious when they hatch, and can be used to distinguish between males and females. When the adult cock mates, it is connected with the hen's everted vagina through the upright connector, and the semen flows into the hen's vagina through the nipple. Fig. 1-7 reproductive system of cock (ventral surface) 1. Testicular 2. Epididymis 3. Anterior lobe of kidney. Middle lobe of kidney. Posterior lobe of kidney. Ureter 7. Fecal tract 8. Cloaca 9. Ejaculatory duct 10. Anal 1 1. Ureteral orifice (2) The reproductive system of hens consists of the left ovary and fallopian tube (Figure 1-8). The right ovary and fallopian tube stop developing in the incubation period, leaving only traces after hatching, and have no reproductive function. ① Ovary: The ovary of chicks is very small, flat and oval, and its surface is granular. With the increase of age, follicles develop and store a lot of yolk, which protrudes from the surface of the ovary, resulting in a grape-like appearance of the ovary. The ovaries of laying hens usually contain 5 ~ 6 developing large yolk (follicles) and a large number of small white follicles. The ovary hangs in the back of abdominal cavity and the front of kidney with a short mesentery. ② Fallopian tube: The well-developed left fallopian tube is a long and curved tube, while the chick's is thin and straight. The front end of the fallopian tube is close to the ovary and the back end leads to the cloaca. According to its shape and function, it can be divided into funnel, protein secretion, isthmus, uterus and vagina. Fig. 1-8 reproductive system of hens (ventral surface) 1. Ovary 2. Mature follicle 3. Funnel 4. Protein secretes 5. Isthmus 6. Cloaca 7. Vagina 8. Uterus 9. Rectum 10. Mucosal fold funnel (trumpet-shaped): The funnel is the beginning of the fallopian tube. If this part is dysfunctional (such as salpingitis), the eggs discharged from the ovary can't fall into the funnel and fall into the abdominal cavity, leading to abdominal diseases (such as peritonitis) in hens. Protein's secretory part (enlarged part): This part is long and curved, connecting the funnel part and then connecting the isthmus, containing abundant glands, and its secretion forms protein. Isthmus: this section is connected with the enlarged part in front and then with the uterus, and the pipeline is relatively narrow. Eggs form an inner shell membrane and an outer shell membrane in the isthmus, and at the same time, they replenish protein's water. Uterus: This part connects the isthmus in front and the vagina in the back, which is relatively spacious and the eggs stay here for the longest time. The uterine mucosa contains eggshell glands, and secretions are deposited to form eggshells. Vagina: This part is the end of the fallopian tube, which bends into an "S" shape and finally opens in the cloaca. When the eggs pass by here, they are covered with a protective film. This is also the place where male hens receive and store semen during mating.

8 browse 384820 19-03-0 1

What are the characteristics of chicken?

Chicken is the most common poultry raised by human beings. Domestic chickens originated from wild chickens, and the domestication history was at least about 4000 years, but it was not until about 1800 that chickens and eggs became mass-produced commodities. The original chicken is earthworm 1 species, also known as camellia chicken. It is the ancestor of domestic chickens. It is now produced in China, Yunnan, Guangxi Zhuang Autonomous Region and Hainan Province, and also distributed in Southeast Asia, India, Malay Peninsula and Sumatra Island. The size of the original chicken is similar to that of the domestic chicken, with a crown on the head and a pair of pendulums on the throat, which is a unique feature of this genus. The male feather is very similar to the domestic rooster, the most significant difference is that its head and neck feathers are slender, with dark red in front and golden in the back. These narrow and pointed feathers are very long. Covered on the back, it is more gorgeous than domestic chicken. Tail feather and tail feather are black, with metallic green reflection, and the bottom of the feather is white, which is particularly obvious when flying. Females are similar to domestic hens, smaller in size and shorter in tail than males. The head and neck are dark brown and reddish. The neck feathers are also very special, with dark brown central axis and golden yellow feathers. They live in dense forests in tropical and subtropical mountainous areas and often feed on plant seeds, buds and grains. In the fields near the forest edge, they also eat insects and other small animals. They nest in a slightly sunken place on the ground, covered with fallen leaves and weeds. They laid eggs in southern Yunnan in February, reached a climax in May, and some of them lasted until 10. Ring-necked pheasant, neck pheasant. In China, it is distributed all over the country except most areas of the Qinghai-Tibet Plateau. 90 ~ 100 cm long. Male birds have gorgeous feathers. Pheasant seen in East China, with copper head and white eyebrows on both sides. Its chin, throat and back neck are all black and have metallic reflections. The rest of the lower body is mottled. Usually, it lives on a hill with grass and trees, and moves to the field in severe winter, feeding on insects, plant seeds, berries and grains. Its feet are strong, it is good at walking and its wings are short, so it can't fly high and long. Its voice is monotonous and low. During the breeding season, it nests in the grass on the mountain and scatters hay and fallen leaves on the ground. Each nest lays 6 ~ 14 eggs, generally 6544 eggs.

9 browse 3252016-12-14.

What are the characteristics of chicken?

Chicken is the most common poultry raised by human beings. Domestic chickens originated from pheasants, and their domestication history was at least about 4000 years, but it was not until about 1800 that chickens and eggs became mass-produced commodities. Pheasant belongs to Pheretima 1 species. Also known as Camellia chicken. As the ancestor of domestic chicken, it is now produced in China, Yunnan, Guangxi Zhuang Autonomous Region and Hainan Province. Southeast Asia, India, Malay Peninsula and Sumatra Island in Indonesia are also distributed. The original chicken is about the size of a domestic chicken. There is a crown on the head and a pair of pendulums on the throat, which is the uniqueness of this genus. Different colors. The color of male feathers is very similar to that of domestic cocks. The most striking difference is that the feathers on the head and neck are long, narrow and pointed, with dark red in front and golden yellow in the back. These slender feathers extend backward from the neck and cover the front of the back, which is more gorgeous than domestic chickens. The tail feathers and the feathers on the tail are all black, with metallic green reflections, and the bottom of the feathers is white, which is particularly obvious when flying. Females are similar to domestic hens, smaller in size and shorter in tail than males. The head and neck are dark brown and reddish; The neck feather is also very long, with dark brown shaft and golden yellow feather edge. Living in the dense forest in tropical and subtropical mountainous areas, I often go to the fields on the edge of the forest to forage for plant seeds, buds, grains and so on. They also eat insects and other small animals. The bird's nest is located in a slightly concave place on the ground, covered with fallen leaves and weeds. In southern Yunnan, spawning began in February, and reached its climax from March to May, and some of them lasted until 10. Pheasant is 1 species pheasant. Also known as pheasant, pheasant, pheasant, ring-necked pheasant and neck pheasant. In China, it is distributed all over the country except most areas of the Qinghai-Tibet Plateau. Body length is 90 ~ 100 cm. Male birds have gorgeous feathers. The pheasant seen in East China has a brass head and white eyebrows on both sides. The chin, throat and back neck are all black, with metallic reflections. There is an obvious white circle under the neck, so it is commonly known as the ring-necked pheasant. The back is golden yellow, the back is chestnut red and then olive green, all of which are mottled. The tail feather is very long, mainly yellowish brown, and is traversed by a series of black spots. The chest is copper red, and there are anchor black spots at the feather end; The rest of the lower body is mottled. They usually inhabit hills with grass and trees, and move to fields in winter to feed on insects, plant seeds, berries and grains. Strong feet and easy walking, short wings, can't fly much higher and farther. The cry is monotonous and low. During the breeding period, nests are built anywhere in the grass on the hills, and hay and fallen leaves are spread in the depressions on the ground. Each nest lays 6 ~ 14 eggs, and generally, 2 nests are hatched 1 year. There are 19 pheasant subspecies in China.

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What are the characteristics of chicken?

The biggest difference between roosters and other animals is that roosters crow in the morning, which is not the characteristic of other animals.