Waste Control in Animal Agriculture
Factors Affecting Decomposition of Animal Waste
In this chapter, we have discussed the factors affecting the decomposition of animal waste. These factors include temperature, moisture, pH, and the presence of oxygen. Temperature is the most important factor, as it affects the rate of microbial activity. Moisture is also important, as it helps to dissolve nutrients and make them available to microbes. pH affects the solubility of nutrients and the activity of microbes. Oxygen is essential for aerobic decomposition, which is the most efficient way to break down animal waste.
Lagoons and Sprayfields in North Carolina
In North Carolina, the fields associated with swine farms are typically referred to as sprayfields since the waste is sprayed onto the fields. Lagoons are used to store the waste before it is sprayed onto the fields. The problems with lagoons and sprayfields described in this report are:
- Lagoons can leak and contaminate groundwater.
- Sprayfields can runoff and contaminate surface water.
- Both lagoons and sprayfields can emit odors that can be a nuisance to neighbors.
These problems have led to increased regulation of animal waste management in North Carolina. Farmers are now required to have permits for their lagoons and sprayfields. They are also required to follow certain management practices to minimize the risk of contamination.
Comments