First, weaning early weaning method.
In China, most of the sow's lactation period is about 2 months. One sow can produce a maximum of 2 children in 1 year. The empty time is long and the utilization efficiency is not high. While a sow consumes 500 kg of feed per year, the smaller the number of piglets produced per year, the higher the cost. The early weaning of piglets is an effective measure to increase the fertility of sows.
1. Suitable age at weaning: The weaning age can be determined according to the production task and technical level. From a physiological point of view, sows that were weaned and mated not earlier than 3-4 weeks postpartum did not result in reproductive difficulties for the sows after the birth. At the time of weaning piglets, weighing not less than 4.5-5 kilograms, normal growth and development, there has been a certain ability to adapt to the environment and resistance to disease, artificial breeding will not be very difficult.
2, weaning method: You can take a sudden sudden weaning, the sow suddenly ran away, the piglet stay in the original house. The sows stopped feeding (watering) on ​​the day of weaning, and then resumed empty feed and ingredients. Piglets should begin to lure around the age of 7 days, and set up a small sink. After weaning, they will quickly adapt to eating, and the feed can be fed dry or wet.
3. Precautions: The piglet's feed should meet the needs of growth and development. Generally, the feed for piglets should be supplemented with protein feeds such as soybeans, bean cakes, and fishmeal, so that the crude protein level of the feed is above 22%. Appropriate amount of feed yeast, sweet substances can be added to improve palatability. Soybeans must be fried and fed to avoid diarrhea.
Artificially nursed piglets must be under strict management. Unsuitable temperature, humidity, poor sanitation, improper diets, and irregular feeding may all cause early weaning failure.
Second, the piglet cage method
Raising piglets on the ground cage is an advanced pig raising technology in foreign countries and has many advantages:
(1) Warming and ventilation methods can be used to adjust the temperature and humidity, so that the cages can cool in winter and cool in summer, which is beneficial to the growth and development of piglets.
(2) Get better feed rewards, use automatic drinkers, automatic food containers, let piglets eat freely. Urine dung is leaked to the ground, so that it does not pollute or less pollute the feed in order to keep the cage and feed clean and hygienic.
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