Goose, what are the classifications according to feather color?

China Goose is the general name of China Goose in the world, which is distributed in many countries. China geese are divided into white and gray according to feather color; According to the weight, there are large (above 7 kg) and medium (male 5. 1 ~ 6.5 kg; Female 4.5 ~ 5.5 kg) and small (male 3.7 ~ 5.08 kg; Female 3. 1 ~ 4.0 kg). 1 White geese are smaller and lay more eggs, which are mostly distributed in the north. Grey geese are larger in size and lay fewer eggs, which are mostly distributed in the south. Its appearance is characterized by sarcoma of the head, long and flexible neck, wide and long body and short and upward tail. The beak, tumor, shin and webbed of white goose are orange; The beak and tumor of the gray goose are black, the shin and webbed are grayish yellow, there is a dark brown stripe on the back of the neck, and the feathers on the chest and abdomen are lighter. Lion Head Goose: It is the largest goose species in China, and it is native to Xilou Village, Raoping County, Guangdong Province. The lion-headed goose is huge and magnificent, with sarcoma at the top. Goose sarcoma is flat, black or black with spots. From the front of the head, it looks like a lion's head, so it is called the lion's head goose. The hypopharyngeal sac is well developed, with sunken eye sockets, golden eyes, dark gray beak, moderate neck length and reddish-brown feathers on the back of the neck, extending straight from the head to the trunk. The body is broad, the feathers are dark gray or brownish gray, the chest is deep and wide, and the shin and webbed are orange. Adult male geese weigh 10 ~ 12 kg, and the maximum weight can reach 15 ~ 17 kg; The goose weighs about 9 ~ 10 kg, and its weight is as high as 12 ~ 13 kg. Under the condition of large-scale feeding, the weight gain of lion-headed geese is the fastest at the age of 40 ~ 70 days, and the average daily weight gain at the age of 5 1 ~ 60 days is1/6.7 grams. The laying age of goose is 150 ~ 180 days, and 25 ~ 35 eggs are laid all year round, with egg weight of105 ~ 255g and white shell.