The effect of light on breeding breed geese
The principle of illumination control Lighting has a greater impact on the reproductive performance of breeding geese, and this effect is very complicated. Prolonging the illumination in the vicinity of laying eggs can stimulate the female geese to start production at a proper time. Short illumination delays the opening time of the geese; the use of short light (natural light) during the growth period, and then gradually extend the light time, can prompt the mother goose to open Production; sudden shortening of light during moulting moults can accelerate moulting. Effects of light on reproductive performance of breeding geese Under natural light conditions, female geese have only one laying cycle per year. Using the method of controlling the light, the female goose can have 2 laying cycles in one laying year. The natural light was used one month after the laying of the female goose in the summer and artificial light was used in the autumn to gradually increase the light time to 15 hours. Natural light is used at 70 to 180 days of age in the reserve geese. From 181 to 210 days of age, the duration of light is gradually increased, and the daily light time is maintained at 16 to 17 hours at the age of 210 days. The intensity of the light source is 2~3 watts per square meter, and a 40~60 watt light bulb is installed for every 20 square meters, and the distance between the lamp and the ground is about 1.75 meters. The suitable illumination system for geese The light of the open goose house is greatly affected by natural light, and the natural light is gradually extended by the short light before the summer solstice, and the light time is shortened after the summer solstice. The lighting plan must be formulated according to the different stages of the growth and development of the geese. Brooding period: In order to grow evenly the goslings, provide light for 23 to 24 hours from 0 to 7 days. After 8 days of age, it should gradually transition from 24-hour light to only using natural light. Breeding: Use only natural light. Pre-laying: The breeding geese are approaching the opening date, and gradually increase the artificial illumination time every day for 6 weeks, so that the breeding time of the geese can reach 16 hours. Since then, it has remained until the end of production. The increased light hours are added in the morning and evening respectively. In the 25th week, lights are turned on before dark, and lights are turned off at 7:30 in the evening. In the 26th week, turn on the lights before dark and turn off the lights at 8:30 in the evening. In the twenty-seventh week, the lights are turned on before dark and the lights are turned off at 9:30. In the 28th week, turn on the lights before dark, turn off the lights at 10:00 in the evening, turn on the lights at 7:00 in the morning, and turn off the lights during the day. In the twenty-ninth week, turn on the lights before dark and turn off the lights at 10:30 in the evening. Turn on the lights at 6:30 in the morning and turn off the lights. In the 30th week, the lights are turned on before dark, and the lights are turned off at 11:00 in the morning and the lights are turned on at 6:00 in the morning. The above is only for reference and can be flexibly controlled according to the variety and weather conditions. SICHUAN UNIWELL BIOTECHNOLOGY CO.,LTD. , https://www.uniwellbio.com