Three measures to improve the reproductive performance of geese
Strict selection of species
In addition to selecting geese according to conventional requirements, early spring goslings whose appearance characteristics and production performance are in line with the characteristics of this breed should also be selected according to individual and pedigree records. select those offspring with good egg production and egg production, fertilization rate, mating performance and offspring growth rate. It is generally carried out in accordance with the steps of primary selection, pre-selection, selection and seed selection.
During the primary selection, the parents with good performance, early shelling, heavy birth, strong physique and good appearance were selected according to 2 ~ 2.5 times of the reserved number.
At the age of 2 months, the selection was determined by comprehensive identification of appearance, physique, physique and reproductive organs according to 1.5 ~ 2 times of the reserved number.
At the age of 3 months, the seeds that changed feathers early and quickly were selected according to the proportion of 1 ~ 1.5 times of the reserved number.
After one laying period, the remaining breeding goose was determined according to the breeding ability, fertilization rate, egg production, egg breed and egg quality.
Strengthen feeding management in the nutrition of geese, first of all to meet the protein needs of geese, goslings should not be less than 22%; 20-day-old should not be less than 15%. At the same time, for the supplement of main minerals, the ratio of calcium to phosphorus is generally 1 ∶ 1 to 1.5 ∶ 1. In the daily management, in addition to grazing, swimming, supplementary feeding, heat preservation, heat prevention, but also to do the following work.
In order to reduce the struggle, scientific grouping should be divided into a small group of 20 ~ 30 breeder geese, which should be raised and managed separately, and the most suitable ratio of male to female is 1 ∶ 3 to 1 ∶ 5.
Do a good job in the management of the laying period and observe the geese entering the laying period. Those who find neck screaming, look uneasy, look around, and miss returning to the nest should be caught and checked.
It is appropriate to ensure that the appropriate humidity is 50% to 65%.
To overcome the annoyance, the male and female of the same group graze and breed together during the day and close the cage separately at night.
When the egg production of the female goose decreases or is about to stop, the male and female geese are raised separately, stop eating for one day, stop water the next day, wash and dry, and pour about 10 ml of liquor first, 10 minutes later, according to the order of the lower neck, chest and abdomen, body side, double ribs, legs, shoulders and back, first pull out the feather piece, then pull out the feather. After pulling, they were given captive breeding to keep warm, strengthen nutrition, and then strengthen swimming for 7 ~ 10 days, and replenish more concentrate to make it enter the next breeding cycle as soon as possible.
Ensure light breeder geese from prenatal one month, keep 14 ~ 16 hours of light every day, 4 hours of light after night in late winter and early spring, the illuminance is 2 ~ 3 watts per square meter, and the light source is 1.75 meters from the ground.
Pay attention to environmental hygiene
The location of the goose house should be far away from the market, trunk roads, railways, factories and other noisy places, so as to ensure that the breeding geese can live in the quiet goose house. Provide sufficient water so that breeding geese can have access to the surface of the water, give full play to their nature and improve production performance. Moreover, geese should have more room for exercise to prevent breeding geese from becoming obese.
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