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Silage Techniques For Wet Brewer’s Spent Grains

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Silage is a good method for storing wet spent grains for a long period, particularly since ensiling does not alter their nutritive value. Wet spent grain silage can be done without additives or other raw material provided that the grains are put in plastic tank or tube; pit/trench silo or plastic tanks as soon as possible. 

Process of Ensiling Spent Grain

  • Fill the silo at once.
  • Provide flow to the juice.
  • Do not use too broad and tall silos.
  • Quickly cool and press before ensiling
  • Protect from rain and cover the grains with plastic film.
  • The silo should have proper drainage to collect runoff.
  • Packing and ensiling characteristics can be improved by blending the wet spent grains prior to ensiling with dry materials such as dry forage (chopped maize/sorghum stover; rice/wheat straws or soybean hulls

Silage Techniques For Wet Brewer’s Spent Grains (Spent Grains)

Silage is a good method for storing wet spent grains for a long period, particularly since ensiling does not alter their nutritive value. Wet spent grain silage can be done without additives or other raw material provided that the grains are put in plastic tank or tube; pit/trench silo or plastic tanks as soon as possible. 

Process of Ensiling Spent Grain

  • Fill the silo at once.
  • Provide flow to the juice.
  • Do not use too broad and tall silos.
  • Quickly cool and press before ensiling
  • Protect from rain and cover the grains with plastic film.
  • The silo should have proper drainage to collect runoff.
  • Packing and ensiling characteristics can be improved by blending the wet spent grains prior to ensiling with dry materials such as dry forage (chopped maize/sorghum stover; rice/wheat straws or soybean hulls, or with a source of fermentable carbohydrates such as molasses or cereal grains. Adding carbohydrates accelerates fermentation, releasing more acids and resulting in a stable silage. Ensiling spent grains with whole crop maize improves fermentation and stability.
  • Pack uniformly but not excessively so as to eliminate air pockets between the job and the tarp.
  • Brewer’s grains silage is ready within 3 weeks and can be used over 6 months, and longer if a silage additive is used. Storage time can be improved by storing in a shaded or cool place
  • They naturally acidify (pH <4.5) In the case of prolonged use (6 months), use a preservative for silage.
  • , or with a source of fermentable carbohydrates such as molasses or cereal grains. Adding carbohydrates accelerates fermentation, releasing more acids and resulting in a stable silage. Ensiling spent grains with whole crop maize improves fermentation and stability.
  • Pack uniformly but not excessively so as to eliminate air pockets between the job and the tarp.
  • Brewer’s grains silage is ready within 3 weeks and can be used over 6 months, and longer if a silage additive is used. Storage time can be improved by storing in a shaded or cool place
  • They naturally acidify (pH <4.5) In the case of prolonged use (6 months), use a preservative for silage.

The fungal contamination of brewery spent grain during storage results in the accumulation of mycotoxins that can be potential risk to the health of the animals and human beings and also cause significant economic impact. The addition of aflatoxins binders such as Calcium bentonite (2-3%) to brewery spent grain is considered one of the most promising dietary approach to reduce effects of aflatoxins. The theory is that the binder decontaminates mycotoxins in the feed by binding them strongly enough to prevent toxic interactions with the consuming animal and to prevent mycotoxin absorption across the digestive tract. Therefore, this approach is seen as prevention rather than therapy.

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