Pig raising Technology of Biogas slurry and Biogas residue

1. In the normal use of biogas digester, feed with middle biogas slurry. Before feeding, take out proper amount of biogas slurry and mix it into feed. After the feed is mixed, it can be fed to pigs after standing for 3~5 minutes in summer, 15~20 minutes in spring and autumn, and 20~30 minutes in winter.

2. Feeding amount should be determined according to different growth and development stages, body weight, food intake and feeding habits of pigs.

① Young pigs weighing less than 20 kg should not be fed with biogas residue.

② Medium pigs weighing 25 kg can start feeding biogas slurry. Feeding method: after epidemic prevention, deworming, strengthening stomach and castration according to the routine, starve 1~2 meals first, increase appetite, add a small amount of biogas slurry into the feed, carry out palatable training for 3~5 days, after adaptation, feed 3~4 times a day, feed biogas slurry 0.3~0.5 kg each time, that is, the ratio of feed and biogas slurry should be controlled at 10~20∶1, and gradually increase to 5∶1 later.

③ Pigs weighing 50~100 kg, at this time, pig bones develop rapidly, food intake increases, biogas slurry volume increases, generally fed 3~4 times a day, each time feeding 0.6~1 kg, that is, the ratio of feed to biogas slurry is 4~3∶1. If a small amount of bone and fish meal are added to the feed, the weight gain will be faster. 3. Mix the feed with biogas slurry into semi-dry and semi-wet. If the biogas slurry is not enough, add water. The feed shall be subject to the pig's consumption. In addition, depending on the concentration of biogas slurry, the dosage can be increased or decreased appropriately.

precautions

1, the new or large refueling biogas digester, must be used in normal gas production after 3 months, can take biogas slurry to feed pigs.

2. Biogas slurry in biogas digesters with abnormal gas production and no gas production or toxic substances is prohibited from feeding.

3, feeding amount should be relatively stable, can not be more pigs love to eat, do not like to eat less, or even do not add, this will disrupt the taste of pigs, the growth of pigs unfavorable. 4. If too much biogas slurry is added, it will cause negative growth of pig growth. Therefore, when starting to add biogas slurry to feed pigs, observe the dynamics of pigs, especially observe the shape of feces. If diarrhea or cake is found, reduce the amount of biogas slurry appropriately or temporarily stop feeding. After the symptoms disappear, add biogas slurry to feed again, but reduce the amount of biogas slurry appropriately, generally by 0.1 kg each time.

5. After the sow gives birth and weans off milk, it is necessary to suspend the use of biogas slurry for raising pigs to prevent fat from growing too fast. Pig weight in 120 kg or so slaughter, its economic benefits best.