February 9, 2025

Why in news ?

Indian Council of Agricultural Research (ICAR) has developed an anti-methanogenic feed supplement ‘Harit Dhara’ (HD), which can cut down cattle methane emissions by 17-20% and can also result in higher milk production.

About:

  • HD decreases the population of protozoa microbes in the rumen, responsible for hydrogen production and making it available to the archaea (structure similar to bacteria) for reduction of CO2 to methane.
  • It has been made from tannin-rich plant-based sources. Tropical plants containing tannins, bitter and astringent chemical compounds, are known to suppress or remove protozoa from the rumen.
  • Fermentation after using HD will help produce more propionic acid, which provides more energy for lactose (milk sugar) production and body weight gain.
    • This leads to economic benefits for farmers.
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