Biogas slurry residue pig technology
1. In a normally used biogas digester, use medium biogas slurry for feeding. Remove the appropriate amount of biogas slurry before feeding and stir in the feed. After the feed is well-mixed, it is allowed to stand for 3 to 5 minutes in summer, 15 to 20 minutes in spring and autumn, and 20 to 30 minutes in winter to feed the pig.
2, the amount of feeding should be based on the pig's different growth and development stages, weight, food intake and eating habits and other conditions to decide.
1 Young pigs weighing less than 20 kilograms should not be fed with biogas residue.
2 Medium-sized pigs weighing 25 kilograms can start feeding biogas slurry. Feeding method: After routinely carrying out epidemic prevention, deworming, stomach-building, and castration, first hungry 1 to 2 meals, increase appetite, add a small amount of biogas slurry to the feed, carry out palatability training for 3 to 5 days, after adaptation Feed 3 to 4 times a day, each feeding 0.3 to 0.5 kg of biogas slurry, that is, the ratio of feed and biogas slurry should be controlled at 10 to 20:1, and gradually increase to 5:1.
3 Pigs weighing 50 to 100 kilograms, at this time the pig's bones develop rapidly, the food intake increases, and the amount of biogas slurry increases. Generally, it is fed 3 to 4 times a day, each time feeding 0.6 to 1 kilogram, that is, the ratio of feed and biogas slurry. It is 4 to 3:1. If you add a small amount of bone, fish meal in the feed, weight gain is faster. 3, with biogas residue digester feed into semi-dry semi-dry, such as the amount of biogas slurry is not enough, you can add water, feed to the pig does not leave the end of the prevail. In addition, depending on the concentration of biogas slurry, the dosage can be appropriately increased or decreased.
Precautions
1. After the new or large refueling biogas digester is used, normal biogas production must be used for 3 months before biogas digesters are fed to pigs.
2. Biogas slurry in biogas digesters with abnormal gas production and without producing gas or toxic substances is prohibited from feeding.
3, the amount of feeding should be relatively stable, can not eat more on the pig, do not like to eat less, even without, this will disrupt the pig's taste, adverse to the growth of pigs. 4. If too much biogas slurry is added, it will cause negative growth of the pig's growth. Therefore, when the biogas slurry is fed to the pig, the dynamics of the pig should be observed. In particular, if the feces is observed, if diarrhea or fecal matter is found, To properly reduce the amount of biogas slurry or stop feeding, after the symptoms have disappeared, add the biogas slurry to feed, but the amount should be appropriately reduced, usually 0.1 kg each time.
5. After sow weaning, the sow should suspend the use of additional biogas slurry to prevent pigs from becoming too fast. Pigs weighing around 120 kg, the best economic efficiency.
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