1. Make full use of the advantages of hybridization. Using binary hybrid pigs, the daily gain of purebred pigs is increased by 15-20%, and the ternary crossbred pigs are increased by about 25% compared with purebred pigs.
2, early iron. Piglets need to consume 7 mg of iron a day after birth, and only 1 mg of iron can be obtained from breast milk. If the piglets are intramuscularly injected with 1 ml of hemoglobin, the effect is better.
3. Improve the birth weight and weaning weight of piglets. The greater the birth weight of the piglets, the better the feeding, the faster weight gain, and the greater the weaning. According to the test, the fattening pigs with large weaning weights are shorter than the weaning weight and shorten the outing period by 1-2 months under the same feeding conditions.
4. Provide suitable temperature and humidity. If the temperature and humidity of the pig house are too high, the pig's feed intake will decrease and the daily gain will decrease. When the temperature is too low, the heat energy consumption is large, the feed intake is large, and the feed compensation is low. The temperature of the pig house should be controlled at 20-30 °C for piglets, 15-20 °C for pigs, and 50-55% for humidity.
5. Supply adequate and clean drinking water. In order to ensure that the fattening pig has a strong metabolic capacity.
6, feeding to take "four fixed one change." That is, the number of feedings is fixed, the feeding time is fixed, the feeding amount is fixed, the feeding standard is set, and the wet mixing material is fed to the pig as a dry powder. Piglets are fed 5-6 times a day, 4-5 times in a pig, and 3 times in a large pig. Feeding time is relatively fixed every day. The amount of feed to be fed is balanced every time.
7. Reasonable stocking density. It is advisable to occupy 0.8-1 square meters per pig. At the age of 3-4 months, each pig has 0.6 square meters, 4-6 months old, 0.8 square meters, and 7-8 months old, 1 square meter. In summer, each pig takes up 1.1-1.2 square meters, and in winter it takes 0.9-1 square meters.
8, the implementation of the same nest original breeding. Piglets are born from the birth to the fattening, and the same nesting method is adopted, which is better than the mixed feeding method after weaning. Due to the reduction of stress stimuli, the daily gain can be increased by 7-8%, and the fattening period can be shortened by 20-30 days.
9, early cast. The earlier the castration age, the lower the stress impact on piglets. Using 20-25 days old castration, it is only after the weaning at 60 days of age, the daily gain is increased by 5-6%, and the slaughter period is shortened by 15-20 days.
10. Properly carry out epidemic prevention and deworming. It is necessary to strictly follow the epidemic prevention procedures for vaccine injection and drug deworming of swine fever, swine erysipelas, and swine plague.
Protein: The protein based on a certain indicator negative charge attracts protein cationic, ionizing causes the color change.
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