Feeding and Management during the Period of Egg Production The purpose of rearing and management of breeding geese during the laying period is to continuously improve the production performance of breeding geese and give full play to the genetic potential of high yield. Therefore, feeding and management must be adapted to egg production and breeding, so as to increase the egg production rate and the fertilization rate of the egg. (1) Goose House and Environment 1. Before the geese were transferred to the breeding geese, the geese were thoroughly cleaned, washed and disinfected. Finally, formalin was fumigated together with utensils and equipment for 24 hours to make the disinfection more effective. Well, before the fumigation, the temperature should be adjusted to above 25°C and the relative humidity should be 75% to 80%. After the fumigation and ventilation, the geese should not have the formalin odor before entering the house. Sports facilities, water baths (pools), feeding utensils, nest boxes, nests, fences, shady sheds and other facilities should be sound and create a good environment for geese. 2. Strictly implement the epidemic prevention health system. The keeper must shower, change clothes, change shoes, wash hands, and disinfect before entering the geese. Non-feeding personnel are strictly prohibited from entering the goose farm and entering the geese. (II) Male to female ratio and stocking density 1. A month before the breeder geese is born, male and female geese are allocated 1:3 according to the ratio of male and female. The male goose must pass the body appearance identification, genital examination and semen check. In order to improve the fertilization rate of eggs. 2. Egg-laying geese are reared in groups, with 20-30 per pen. Breeding density is 2.5-3/m2. (3) The material level and the water level shall be provided with troughs and sinks inside and outside the house. The material level shall be 3 cm/head, and the water level shall be 2.5 cm/only. The amount of drinking water shall be sufficient and clean. In winter, drinking water shall be prevented from freezing, and warm water may be added at night. (D) temperature and ventilation 1, the physiological characteristics of the goose is down fullness, subcutaneous fat thicker and no sebaceous glands, only developed tail fat glands, heat difficulties, sensitive to high temperatures. Therefore, to create a suitable ambient temperature of 10-25 °C, the most suitable ambient temperature for goose eggs is 16-20 °C. 2. Ventilate and ventilate frequently, eliminate three kinds of harmful gases such as ammonia sulfide, ammonia gas and carbon dioxide inside the house and exchange fresh air to ensure the health of the geese. (five) Lighting The light of the laying geese is gradually increased to 10.5 hours, the light intensity is 25LX, and a few 15W incandescent bulbs are set in the evening to keep the light in the house dim, stimulate the goose sexual activity, accelerate the geese ovary Development and egg maturation, at the same time, can also stimulate gosling geese. (6) Management of Eggs 1. Set a nest box for every 4-5 geese, with a size of 60 centimeters, 66 centimeters, and 60 centimeters. The position of the nest box is dark, dry, quiet, free of thieves or drafts. 2. The litter in the nesting box should be replaced frequently, keep it dry and clean and avoid contaminating eggs. 3. Train the mother geese into laying boxes to lay eggs to minimize ground eggs. 4. Most of the goose lay eggs are concentrated from 1am to 9am. Therefore, eggs are collected every 2 hours from 2 a.m. to reduce egg crushing or contamination. In winter, it prevents the freezing of eggs and reduces the hatching rate. 5. After the eggs are collected, they are fumigated with formalin and sent to the egg bank for storage. 6, egg storage with air-conditioning equipment, storage egg temperature is 13-16 °C, relative humidity 75% -85%, if the egg storage more than 1 week should be timed to transfer eggs, transfer eggs 1-2 times a day. 7, ventilation, storage of the egg store should keep the air fresh, no special odors, eggs to prevent fly lice mosquitoes. (7) The theory of reducing stress stress has been widely used in poultry industry. Many factors can cause stress response of geese and thus affect the production performance of geese, especially the geese during the production period, even if it is a tiny stimulus. All causes stress, which in turn reduces egg production. For this reason, in the breeding process, various factors that cause stress should be minimized, so that the goose can fully exert its genetic potential and obtain greater economic benefits. (8) Disease prevention and control The health of the geese can be normal. Once the geese go sick, their egg production, breeding ability, hatching rate of hatching eggs will be significantly reduced. Therefore, we must attach great importance to the disease prevention and control of breeding geese, in addition to immunization procedures. In addition to vaccination, we must also pay attention to daily sanitation and disinfection work. We must strictly implement the epidemic prevention sanitation system and conduct scientific feeding management to avoid economic losses caused by diseases as much as possible. Feeding and management during the moulting period Due to reproductive physiology, geese enter the moulting period after 22 weeks of laying. At this time, the breeding geese need to be specially reared and managed, focusing on the feathering and moulting work. (1) Limit the feeding during the feeding of breeding geese to rough feeding, reduce the proportion of fine material in large quantities, use grazing as the main method, and properly feed some roughage. The method is to change the raw material for feeding 1-3 days from the beginning of rough feeding. To rough and reduce the number of feedings, the weight of the 12-13 swan is reduced by 1/3. When the main wing feathers and the main tail feathers appear dry, the feeding is resumed, feeding twice a day, 120 grams per day/day, After feeding for 3-5 days, until the body weight gradually rises and the health is restored, the breeding period is completed. (b) Manual plucking can shorten the moulting time by plucking feathers, making the moulting time of the breeding geese the same, and the production opening time is the same. Artificial pullouts must be performed after the geese have returned to health. (C) Moulting schedule If natural moulting is used, it will take 26 weeks before entering the second laying period. If artificial plucking is used, it takes only 17 weeks to enter the second laying period. Nine weeks ahead of schedule not only facilitates management, but also increases egg production. In addition to artificial pullouts, drug removal can also be performed. (D) After careful management of artificial moulting, it is necessary to strengthen management. In addition to avoiding exposure to sun and rain, it is also necessary to avoid water after plucking feathers. If the weather is cooler, watch out for cold. Practice has proved that it is unfavorable for geese to pull the plume in late October. At the same time, after pulling the plumage, it is necessary to supplement the feeding and gradually increase the amount of supplementary feeding so as to prepare for entering the second laying period as soon as possible. China Agricultural Network Editor