Which of the following practices can help reduce methane emissions from livestock farming?
1. Improving animal health and genetics
2. Dietary supplements like nitrates
3. Anaerobic digestion of manure
4. Upgrading grain-based feeds
5. Increased use of chemical fertilizers
6. Burning of manure waste
Select the correct answer using the code given below:
1
1, 2 and 4 only
2
1, 3 and 6 only
3
2, 4 and 5 only
4
1, 2 and 3 only