Main technical points of sheep feed straw ammoniation

Ammonia treatment before crop straw feeding can improve its nutritional value, and the main points of straw ammonification technology:

1. Ammonia source and dosage: urea is 5% dry straw or 10% ammonium bicarbonate.
2. Venue: Choose a place with high dryness and good drainage. Build a cement cellar, 2 meters long, 1.5 meters wide and 1.2 meters deep. The cell wall is required to be airtight, and the bottom of the cellar is not leaky.
3. Straw pretreatment: Adjust the moisture content of the straw to 30-40% and discard the unclean or mildewed straw.
4. Cellar: The corn stalks can be bundled and layered, and the ammonia source is added proportionately. The dried straw or the ammonia source is made into an aqueous solution, and the water is used for 20-30 kg per 100 kg of rice straw. When the straw is 1 meter higher than the cellar surface, put it into a shape of a bun to avoid trapping water.
5. Cellar: Use a nylon film, spread it along the side of the stalk and compact it with mud.
6. Management: During ammoniation, if the film is damaged and leaks occur, it should be promptly repaired to ensure the quality of ammoniated straw.
7. Ammoxidation time: with temperature, <5 °C, 4-8 weeks; 5-15 °C, 2-4 weeks; 15-30 °C, 1-2 weeks;> 30 °C, 1 week or less.
8. Open the cellar to put ammonia: Select sunny weather open cellar, remove the ammoniated straw spread out, sun drying, put net ammonia, avoid rain poured on straw, preferably after the indoor storage after crushing.
9. Sensory review: good ammoniated straw, a strong strong ammonia taste when open cellar, put aroma after release ammonia, light yellow or yellowish brown color, soft texture. If there is dull smell or black sticky straw should be abandoned.
10. Feeding techniques: The sheep are gradually adapted to the initial feeding of sheep, from less to more, and less to ground or spices. In addition, due to incomplete nutrient stalks, appropriate amounts of green and blue fodder should be added, and a small amount of cakes should be added to the mix to ensure the effective use of nitrogenous substances.
11. When the feed is changed, care should be taken not to suddenly, but there should be a gradual transition period.
12. The sheep's grille is required to be well-ventilated in the summer and cold and warm in the winter to keep the sheep's fence dry. Fences should be provided with bamboo or wooden bars, with a width of 2-3 cm, a spacing of 1 cm, and a height of 40-60 cm from the ground.
13. Rams and ewes are bred in groups to avoid early allocation and abuse.
14. Feeding water is very important, and feeding salt should not be forgotten. Different seasons, different types of feeds, and different water supplies, such as eating grass and green grass, can be fed little or even without feeding; when the weather is hot and when feeding hay in winter, sufficient and clean drinking water should be given. Salt can increase appetite and facilitate digestion. Generally, 10 grams of salt and 5 grams of lamb are fed every day.

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