Dietary plant extracts reduce methane emission and modulate rumen microbial functionality in Merino lambs.
Akanmu AM, Hassen A, van Marle-Köster E, Adejoro FA
Climate Adaptation
Plants in your garden — like aloe vera — may hold the key to reducing livestock's contribution to climate change, meaning everyday plants could help shrink the carbon footprint of the meat and dairy on your plate.
Researchers fed lambs extracts from three common plants — moringa, jatropha, and aloe vera — and found the animals burped out significantly less methane gas, which is a major greenhouse gas from livestock. The lambs also digested their food better, getting more nutrition out of each meal. The best part: the animals grew just as well as those on a regular diet, meaning farmers wouldn't have to sacrifice productivity to go greener.
Key Findings
Methane emissions dropped by up to 17% (jatropha), 12% (aloe), and 9% (moringa) compared to control lambs with no plant extract supplementation.
Moringa and jatropha extracts improved dry matter and crude protein digestibility, meaning lambs absorbed more nutrients from the same amount of feed.
Gut microbiome analysis showed an enrichment of genes linked to protein production and carbohydrate breakdown in moringa and jatropha groups, helping explain the digestibility improvements at a microbial level.
chevron_right Technical Summary
Adding extracts from moringa, jatropha, and aloe vera to sheep feed reduced methane emissions by up to 17% and improved protein and dry matter digestion, without slowing animal growth. This suggests these plant-based additives could be a natural, sustainable tool for making livestock farming cleaner and more efficient.
Abstract Preview
The formation of enteric methane from ruminants represents a significant loss of dietary energy that adversely affects growth and production while also contributing to the environmental footprint o...
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Moringa is the sole genus in the plant family Moringaceae. It contains 13 species, which occur in tropical and subtropical regions of Africa and Asia and that range in size from tiny herbs to massive trees. Moringa species grow quickly in many types of environments.