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      Question

      It is advised to add gypsum to manure in the cattle

      shed. Reason behind it is?
      A To increase the moisture content of the manure. Correct Answer Incorrect Answer
      B To provide better warmth for cattle during cold conditions. Correct Answer Incorrect Answer
      C To reduce nitrogen loss through the conversion of ammonia. Correct Answer Incorrect Answer
      D To enhance the mineral content of the manure. Correct Answer Incorrect Answer
      E To lower the pH of the manure and reduce odor Correct Answer Incorrect Answer

      Solution

      Gypsum (calcium sulfate) is added to manure primarily as a preventative measure against nitrogen loss. It reacts with ammonium carbonate, an intermediate formed during urine decomposition, to create ammonium sulfate, which holds nitrogen in a stable form, preventing it from volatilizing as ammonia and being lost to the atmosphere. 

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