Why are additives ( in addition to roughage annd concetrates ) important for the growth of dairy aimals?
Name two additives .

Explanation

**Step-by-Step Solution:**

1. **Understanding the Role of Additives**: Additives are substances added to the diet of dairy animals to enhance their nutritional value. They play a crucial role in ensuring that the animals receive all the necessary nutrients for optimal growth, health, and milk production.

2. **Importance of Additives**:
- **Nutritional Balance**: Additives help to fill in the gaps that may exist in roughage and concentrates. While roughage provides fiber and concentrates provide energy, additives can supply vitamins, minerals, and other essential nutrients that are not sufficiently present in these primary feed components.
- **Improved Digestion**: Certain additives can enhance the digestibility of feed, allowing dairy animals to absorb more nutrients efficiently. This is particularly important for maximizing growth and milk yield.
- **Health Benefits**: Additives can also support the immune system, reduce the risk of diseases, and improve overall health, which is vital for the productivity of dairy animals.
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