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Identify low-grade laying hens
In order to increase the egg production rate of laying hens, it is generally necessary to eliminate low-laying hens at the end of the laying season (after 300 days of age) in order to reduce the cost and improve the efficiency. 1, distinguish from chicken cocks. High-yield chickens have large red, soft, delicate temperatures, one side, and normal red color. Low-producing chickens, even those that do not produce eggs: The chicken crowns do not fall, there are white spots or white frosts, and the crowns are thin. If it is Marek's disease, the chicken's crown is atrophic, there is no temperature, and the crown is cool; if there are purple crowns and black crowns, the chickens must be eliminated in time. 2. Distinguish from the legs and mouth (yellow leg and yellow mouth before laying eggs). For high-yield chickens, the higher the faded egg production rate is, the higher the egg production rate is between 250-300 days old, which is the low-yielding chicken with yellow legs and yellow mouth, and even without laying hens. The chicken breed is a chicken leg with a white shell and the mouth is yellow. The chicken breed is a brownish-yellow chicken leg with a pink shell. 3, distinguish from feathers. High-yielding chickens: Feather, earthy, untidy, unsmooth, not smooth, high-yielding chickens with neck, back, chest, feathers falling off or losing light, such as sterilizing chickens, and often dressed in smooth hair, such chickens are low-yielding chickens . 4, distinguish from the anus. The anal laxative muscle is loose, and the elasticity around the expansive contractor muscle is elastic, there is a moist sensation, and it immediately shrinks and flows out of the viscous secretion. Such a chicken is a high-yielding chicken. There is no elasticity in the contraction of the anus and extrusion around the abdominal muscles, and there is no sense of moisture for the low-yielding chickens. 5, distinguish from the eating situation. When feeding, high-yielding chickens, such as hungry tigers, devour, have a strong appetite, do not look up when they eat, do not picky eaters, and eat quickly. Picky eaters do not like to eat, even the feed, chopped into a pile of not eat, but also a waste of feed chickens for low-yield chickens, and even do not produce eggs. 6, distinguish from the feces. The high-yielding chicken droppings are shaped into small white heads and drink more water in the summer. They are also basically formed and the colors are normal. Low-producing chickens and non-laying hens have slender feces and dry feces. 7. Distinguish from the pubic bones. High-yielding chicken, pubic 3-4 fingers. Low-producing chicken pubic bone 2 refers to even 1 finger. 8, distinguish from the abdomen. High-yielding chickens have a large belly. The low-yielding chicken has a narrow, thin, thin sternum with a sharp blade. 9. Distinguish from chicken roar. High-yielding chickens: The calls are loud and uniform, indicating that large groups of chickens are healthy. Chickens that do not produce eggs for a long period of time do not call or send whistles. When abnormal animals and other small animals are found in chicken farms, they immediately scream and cause large groups to frighten and produce soft eggs. 10, the identification of chicken thief. Handle chickens that eat eggs or chickens that only lay eggs on the upper layer and transfer them to the upper cage. Chickens that use ticks with necks should be eliminated or put into single cages, cut off the cages, and allow the eggs to roll to the ground (place some earth on the ground so that the eggs are not broken). For non-laying chickens, 7-day counting can also be used. The above 10 recommendations are generally in line with 2 or more may be low-laying layer.