The breeding geese in the early stage of laying eggs can be divided into two kinds: firstly, the reserve geese are reared with the restriction based on grazing, and enter the early stage of the laying period; secondly, the geese with two or more ages are going through the rest period and are ready to resume egg production. .
1. Strengthen grazing. At this stage, breeding female geese must also strengthen grazing and rearing, can make full use of the resources of natural green feed, reduce the cost of feeding, and can further improve the goose population, prevent over-fertilization, and maintain a good body condition. As the geese are close to opening, the body is large and the action is slow, and the grazing route must be shortened.
2. Appropriate feeding. Increase the proportion of fine material, Guzi class accounted for 45% to 55%. Also pay attention to the balance of nutrients in the diet. According to the situation, each day and night can be supplemented with 2 to 3 times of concentrates to promote the early improvement of its physiological function. Geese of over two years of age enter the pre-lay period after the period of production. When the main and secondary wing feathers are changed, they begin to increase the proportion of fine material. Generally, they are fed 2 to 3 times each day and night. According to the condition of goose feces can be judged whether the appropriate materials, such as geese manure thick, soft, with a foot can be divided into several sections, indicating that the geese eat the material is more appropriate; goose feces small solid, broken section was granular, indicating that the geese eat Too much concentrate should increase the amount of green feed.
3. Fit and thin. If the geese are too fat, they can be kept for a few days, only drinking water, and feeding less or not feeding concentrates; overweight geese should increase the proportion of concentrates, otherwise it will affect the time of opening. In addition to feed supplements, female geese should also feed gravel and shells, and can also spread gravel and shells on the playground to allow geese to eat freely.
4. Deworming and epidemic prevention. To maintain the cleanliness of the home and the outside world and the dryness of the litter, provide sufficient drinking water. In addition, the geese should be repelled once at this time, and the goslings should be injected once.
5. Keep a good goose. To early feed the male goose, promote its early moult to restore constitution, in order to have sufficient energy before breeding the mother goose breeding. And according to different varieties, adjust the male and female goose breeding ratio.
6. Juvenile production. Observed from the posture, the laboring mother goose is slow in movement, the abdomen is full of softness and elasticity, and the distance between the pubic bones is wide. From the observation of the feathers, the maternity goose feathers are shiny, the tail feathers and the back are straight, the feathers are flat in the abdomen and the anus, and the plumage is compact. In particular, the neck feather is firm and smooth, and the feather around the anus is in the form of chrysanthemum. The unopened goslings have loose feathers and old feathers are mixed in the new feathers. From the appetite observation, the appetite of the laboring female goose increases, about 10 days before the start of production. That is, looking for shellfish and Other mineral feeds in the surrounding or sports grounds; Observing from the mating, the live mother goose actively seeks to approach the male geese, frequently nods to the top and bottom when the water is launched, and requires mating, or the mother geese and the mother geese climb and step on each other and have a title grass. The nest phenomenon indicates that the production period is approaching.
7. Strengthen lighting. The intensity of light and the length of time directly affect the sexual maturity and growth of geese breeding. Illumination can stimulate the secretion of gonadotropins in the anterior pituitary by visual stimulation, which promotes the growth of follicles in the ovary. The secretion of estrogen in the ovary promotes the development of ovipositor oviposition. At the same time, it opens the pubis and expands the cloacal cavity. Light can cause the secretion of gonadotropins in gooses, stimulate the development of fine testicular tubes, and promote male sexual maturity. In addition, UV can be transformed into 7-dehydrocholesterol in poultry to vitamin D3, promote the absorption of calcium and phosphorus, while UV sterilization can help enhance the body's resistance. The pre-laying light time of the geese (natural light + artificial light) gradually reaches 14-16 hours. The intensity of artificial light can be controlled by adjusting the wattage of the bulb and the height of the bulb from the ground. In order to make it easy for managers to walk, the height of the bulb from the ground is generally 2 to 2.5 meters. There is 40 watts of illumination intensity per square meter of goose house area.
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