Cattle or goats are never browsing on calotropis growing in abandoned fields because of the presence of

Options

A. Poisonous glycosides
B. Alkaloids like quinine
C. Opium
D. Long chain fatty acids

Answer

To answer the question, "Cattle or goats are never browsing on calotropis growing in abandoned fields because of the presence of," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Plant**: Recognize that Calotropis is a type of plant commonly found in abandoned fields. It is known for its distinctive features and ecological role.

2. **Understand the Context**: The question implies that there is a reason why cattle and goats avoid grazing on Calotropis. This suggests that the plant has some form of defense mechanism or deterrent.

3. **Research the Chemical Composition**: Calotropis is known to produce certain chemicals that are harmful to herbivores. These include:
- **Cardiac Glycosides**: These are toxic compounds that can affect the heart function of animals that consume them.
- **Alkaloids**: Compounds like quinine and opium that can cause adverse effects on the nervous system and overall health of herbivores.
- **Long-chain Fatty Acids**: These can also contribute to the toxicity of the plant.

4. **Conclusion**: The presence of these toxic compounds, particularly the poisonous glycosides, is the primary reason why cattle and goats do not browse on Calotropis. Consuming these compounds can lead to sickness or even death in herbivores.

5. **Final Answer**: Therefore, the correct answer to the question is that cattle or goats are never browsing on Calotropis due to the presence of **poisonous glycosides**.