Selected varieties. The local gooses can use the advantages of high egg production, resistance to rough feeding, and strong resistance to disease. The breeding of male geese as male parents is used for crossbreeding. Their offspring retains the characteristics of local geese as well as the advantages of fast growing geese. The offspring of this hybrid goose has an average weight of 3.6 kilograms after being fattened at 8 weeks of age, and its economic benefits are very obvious.
The development of deep processing of feathers can promote feather growth of young geese. Although some meat gooses have reached the market standard after being fattened, the feathers are not long enough to be sold, resulting in an extended feeding period. For example, the feather powder processed by poultry waste feathers (whose crude protein content is above 80%) is fed with about 2% during the growth process of goose feathers, which can effectively promote the growth of feathers.
The development of sterile cages raises the fly breeding industry, replacing high-priced protein feeds. According to the experiment, adding appropriate amount of fresh quail to feed in the feed increases the growth rate by 19.2%-42% and saves feed by 20%-40%. Flies breed at amazing speeds. According to calculations, a pair of flies can reproduce 200 billion clams in one summer. Can accumulate more than 600 tons of pure protein. A livestock farm accompanied by a fly maggot farm is equivalent to building an insect protein feed factory, which is a simple new technology that turns waste into treasure.
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