How to prevent laying hens from recons

The hens of the laying hens usually occur in primaries, and in hens. If not treated in time, it will induce scrofula, severely affect the production of eggs, and even cause death, which is a common disease in production. Mild prolapsed ones do not show symptoms when they are not producing eggs. They only produce bloody eggs and give off "grilling" pain during egg production, or slight prolapse outside the anus, but they can quickly retract. In vivo; moderate prolapse of the anus, cloacal cavity is often prolapsed can not be naturally retracted in the body; severe prolapse of the anus, in addition to cloacal prolapse, and some of the fallopian tube or part of the intestine, prolapse, large, edema, pollution and so on.

There are several reasons for rectal prolapse

The first reason is that improper feeding and management before the opening of adolescents, especially the irrational use of light, is the main reason for the initial production of laying hens and anal licking. From a scientific point of view, the duration of adolescent light is best maintained for 7 to 8 hours, and it can only be opened at 120 to 130 days of age. However, some chicken farmers are anxious to achieve success, adding lighting time around the age of 110 days, and even adding lighting time to 16 hours all at once. This will inevitably accelerate the sexual development of the flock and make the fallopian tubes and eggs develop rapidly. Generations, including pubic spurs, are also rapidly formed. However, due to the fact that the chicken's physique is not fully developed and matured, the body's overall development is unbalanced, the lack of vital energy is reduced, hormones are unregulated, and irritability occurs. This eventually causes rectal prolapse, uterine prolapse, and anal fistula. In addition, the young chicken feed is not reasonable, blindly increase the protein content, coupled with not limiting the amount of feed, and premature conversion into egg production material, resulting in hen fat, abdominal fat deposition, oppression of the fallopian tube, obstructing the birth canal, The tubal muscles are over-stretched and each time the egg is laid, it causes a rectal prolapse due to a force.

The second is that some diseases caused by prolapse can not be ruled out. Such as chicken typhoid fever, chronic fowl cholera, long-term diarrhea will lead to decreased anal contractility, dry genital tract caused by rectal prolapse; bird flu, E. coli and other pathogenic microorganisms often invade the laying ovary, fallopian tubes, cloacal etc., so that the hens reproductive Loss of function leads to rectal prolapse; vitamin A, E deficiency can lead to reduction of genital tract inflammation or secretions, resulting in rectal prolapse; parasite diseases reduce or hinder the absorption of nutrients in the gastrointestinal tract, resulting in metabolic disorders of the body and reproductive function reduce.

The third is caused by high output. During the peak period of egg production, due to unreasonable feeding and poor illumination, chickens produce too much eggs, or produce double yellow and extra large eggs, causing the laying hens to be overloaded with production, resulting in gas guilt subsidence and anal incontinence. And rectal prolapse.

Fourth, the impact of other factors, such as genetic factors, stress, non-standard artificial insemination, pheasant interference and so on.

Clinical conditions should take three prevention measures

The first is to conduct treatment in a timely manner. After identifying the cause of mild prolapse of the anus, remove the cause and treat it; moderate prolapse of the rectum should be manually washed (with five-tenths of potassium permanganate or 10% saline) to deliver the prolapse into the abdominal cavity. Isolation and prevention of hemorrhoids and drug treatment; severe anal prolapse, first of all timely isolation, artificial finishing reset, and then from the anus to give penicillin 400,000 units, prevent secondary infection. Once no more prolapsed after a full recovery, oral oxytetracycline was given. If you need to re-defecate and defecation difficulties need to limit feeding or stop feeding, rinse twice daily with warm salt water enema, keep the anus around clean to reduce irritation. After rinsing and drying, the anal drops 1-2 ml of erythromycin eye drops, and the prolapse is delivered into the anus. A purse-string suture is made around the anus to leave the defecation hole. After a few days, the hen is no longer responsible. Polyline. If the conditions permit, the light-setting (ie, up to 16 hours) anaesthetic hens are chopped and melted into water with “Buzhong Yiqi Pill” (for human use, 50 chickens per box of day), and are used in two batches of Beverages. 4 to 6 days, plus 2% of the feed in the plaster and Zhibi Ling clothes.

The second is scientific feeding management. No matter the brooding stage or the breeding period, or the laying period, it should be managed according to the feeding standards and lighting procedures at different physiological stages. We must not be eager to seek success, nor blindly pursue so-called high yields. We must act in accordance with objective laws to ensure that the laying hens are not fat, but thin, not premature, and the chickens are well-proportioned, so that they can enter the laying period in good condition and go smoothly. Prolific. For example, in the young chicken period, the diet should be limited to about 3% (to avoid overweight and sensational fat), and then slowly increase after the chicks mature (the crude protein level in the diet is also 7 to 14 weeks old, 15-18 weeks old, low; after opening (after 18 weeks of age) but also slowly reload, when the egg production rate reached 50% and then gradually changed into egg production material, reached 85% when the peak material and so on. For the laying hens during the laying period, if the light has not yet been fixed, the addition of the light time should be stopped immediately. It is advisable to use the above method for treatment. After the condition is improved, add light at a slow speed for 16 to 16.5 hours.

The third is to reduce stress (including reasonable grouping, appropriate density, timely breaks, keeping poultry houses clean, quiet surroundings, etc.) to eliminate all other causes.

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