First, the importance of breeding breeding geese The goal of choosing breeding geese is to: select excellent individuals, and can pass their excellent quality to future generations to improve the production performance and economic benefits of commercial goose. The principle requirements for the selection of breeding geese are as follows: the appearance characteristics are in accordance with the variety, the physique is robust, the adaptability is strong, the genetic stability is stable and the production performance is excellent. Second, the selection of breeding geese (a) according to body shape and physical characteristics of the choice. Body appearance and physiological characteristics can reflect the growth and health status of a goose, and can be used as a basic condition for judging the production performance of a goose. This selection method is suitable for the supply of goose breeding grounds for household products. Because this type of breeding farm (household) does not have individual performance records, it can only rely on the physical appearance and physiological characteristics of the geese to select the best. The selection of breeding geese according to the appearance of the body must be carried out several times in different stages of growth and development. 1, the choice of goslings. Goslings should be hatched from the 2-3 year old goose. The shells should be selected at the right time. The body should be strong, the fluff should be clean, the length and density should be moderate, the body weight should be uniform, and the belly should be soft without the navel, villi, cockroach and beak. The color of the young chicks that matches the characteristics of the breed is used for breeding. It is also important to note that goslings hatched in different incubation seasons have a greater impact on their production performance: Goslings hatched in early spring have fast growth, strong physique, strong viability, early production, and good production performance. Late goslings hatched late in the spring and early summer are worse. 2, the choice of breeding geese. In bred geese aged 70-80 days, individuals whose feather color meets the requirements of species, fast growth, and robustness are reserved for reserve goose. Disqualified individuals are eliminated in time. 3, the choice of reserve species of geese. In 120-day-old geese that are ready for pre-opening, individuals with well-developed and well-balanced organs, robust physique, strong bones, responsiveness, liveliness, and distinctive varietal characteristics are reserved for breeding. Color abnormalities, migraine, hanging wings, wings, appendix, tumor legs, small body weight, debilitating and other unqualified individuals are eliminated in time. 4, pre-production options. After 180 days of age, the mother and female geese were selected before the breeding goose was opened and the goose was mated. Goslings selection criteria: body parts are well-balanced, body size is not large, head size is moderate, eyes are bright and bright, necks are medium and long, body is long and round, front body is shallow and narrow, hindquarters are wide and deep, and both feet are strong The distance is wide, the feathers are close and close to the body, the tail is wide, and the tail is straight. Goose selection criteria: large size, strong physique, well-balanced body parts, moderate fatness, wide head, wide eyes, sensitive eyes, long, blunt, closed, powerful, loudly cried, thick and slightly elongated neck Bending, the body is rectangular, wide front, back wide and long, flat abdomen, moderate length, strong legs, two feet wide distance. If there is a sarcoma species, the sarcoma must be well developed and prominent, showing male characteristics. It should be emphasized here that the selection of male geese should be particularly strict because of the large proportion of male penis dysplasia. Therefore, when choosing a male goose, in addition to paying attention to the normal appearance and physical fitness, it is also necessary to check the development of the penis, preferably to check the quality of the semen. Because the male geese are good, and the good ones have a large influence, a male goose has 4-6 female geese. If the goose lacks reproductive ability, the 4-6 female geese in a breeding season will be in vain. Wasted investment in feeding management. (b) Selection based on recorded data Although the physical appearance of goose can reflect the quality of the goose to a large extent, it cannot accurately assess the potential production performance and breeding quality of goose. Therefore, breeding goose farms (households) should make a good production record and make effective choices based on the records. The method is: the geese will be kept as breeding geese, numbered separately, and the age of production, the weight of production, the weight of adulthood, the number of eggs laid in the first year of production and the average egg weight, and the average weight of eggs are recorded. The number of eggs laid, the average egg weight, the fertilization rate, the hatching rate, and the presence of brooding. According to the data, excellent individuals who have started production, have a lot of eggs, have a long duration, qualified average egg weight, and have no brood, are left as breeding geese. They will open prematurely or lately, produce fewer eggs, and have heavy eggs. Large or small, strong and weak constitutional individuals are eliminated in time. Third, the thoroughbred and good law in close connection with the selected good breed geese must adopt a good husbandry and management methods, in order to give full play to the excellent production performance, to obtain the desired results. The good law mentioned here is, in a nutshell, the proper nutrition and nutrition, superior environmental conditions and scientific health and disease prevention measures. (I) Feed nutrition is reasonable. It is in accordance with the nutritional needs of the different growth stages of the geese to timely supply suitable feed nutrients in order to meet their normal growth and development and reproductive nutritional needs, and must not deal with it at will. Otherwise, poor growth and development of geese, excellent production performance is inhibited, and ultimately lead to serious economic losses. (b) Excellent environmental conditions. It refers to the temperature, humidity level, light time and intensity, the freshness and supply of air, the cleanliness, hygiene and pollution-free conditions of the environment inside and outside the goose farm, and the facilities and feeding conditions of the flocks conform to the normal growth of the geese. The need for development and production reproduction. Under such superior environmental conditions, the geese can live a normal life and proper feed nutrients can be properly used and transformed, and eventually they can grow and develop into excellent geese. (c) Scientific health and disease prevention measures. In the entire process of raising geese must adhere to the implementation of the "prevention, prevention and prevention of governance" approach, according to local conditions, the development of environmental health, disinfection management system and immunization procedures, and strictly enforced. In this way, the health of geese can be guaranteed. Only the goose herds are safe and disease-free, and the internal and external factors can be effectively integrated into one and transformed into ideal economic and social benefits.
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