Goose is a long-lived waterfowl, so the geese breed longer than other poultry. The best breeding age of male and female geese is 3 years old. The geese produce egg at the age of 3 is the highest. After 1 year old, the egg production rate is gradually reduced. Therefore, it is generally used in production to 1 year old. Male goose mating age should be assigned at the beginning of the age of 3 years, using 1. years, so the goose is generally not used for breeding breeding. When the useful life is reached, the geese should be eliminated and renewed. There are two methods: First, the whole group will be replaced, that is, all old geese will be eliminated and replaced with new geese; the other is eliminated in batches year by year. New breeds of geese are replenished in batches, ie, geese with poor performance in different age structures are eliminated each year. This method requires a certain proportion of the age structure of the old and new geese (see the feeding and management group during the discontinued period). At the same time, due to mixed old and new geese, it is not easy to live in peace in a short time, so the new geese must be placed at the same ratio between male and female. Enter the goose so that the fertilization rate is not reduced. China Agricultural Network Editor
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