With the implementation of national ecological home construction projects, the construction of biogas digesters in counties in Chengde has developed rapidly. Biogas digester, a by-product of biogas digesters, is a relatively complete feed additive and is very good for feeding chickens. It contains trace elements such as copper, iron, magnesium, manganese, and zinc. It also contains lysine, tryptophan, cobalt acid, niacin, riboflavin, and their derivatives. In addition, there are many types and quantities of bacteria in biogas. The community has a strong ability to reproduce, produce a large number of bacterial proteins in the metabolism, so that the effective nutrition of biogas slurry is very rich.
When the chicken grows to a live weight of 0.3 kg or more, it can begin to feed with biogas slurry. General feed can be mixed. Biomass requirements mix, the amount of mix to quit dry is not appropriate.
To use biogas slurry, take a fresh layer of pure biogas slurry from the digester outlet. Take the foam on the surface of the biogas slurry before taking it, take the middle serum, filter it through the gauze, and stir it in the chicken food.
Biogas digesters that have been used for normal gas production and have been used for more than 3 months can be used. No gas pool or diseased pool must be taken for liquid feeding.
The amount of biogas slurry should be appropriate. If the ratio of biogas slurry to feed is greater than 1:1, the chicken will experience diarrhea.
The Amino Acids, trace elements and other active substances contained in the biogas slurry can effectively stimulate the ovulation function of the hen's ovary and increase the ability to lay eggs.
The hens reared with biogas slurry were laid 20 days ahead of schedule. The laying hens were extended for about 50 days compared to the control chickens. The average egg laying period was 250 days. The hens fed on a single feed had an average egg production period of In 200 days, the former had a 25% increase in egg production rate.
Eggs produced from chickens fed with biogas slurry were weighed at an average of 46.7 grams per egg. Eggs produced from single feed chickens weighed only 39.6 grams per egg. The weight gain of the former was higher than that of the latter. 17.9%. Feeding a hen with biogas slurry can increase income by more than 15 yuan a year.
The chickens were fed with biogas slurry and the average chicken weight was 1.8 kg within 10 months. The chickens were not fed with biogas slurry and the average body weight was 1.4 kg. The former was 28.75% higher than the latter.
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