Flashback Friday: Do camel farts contribute to global warming?

By Seriously Science | April 15, 2016 6:00 am
Photo: flickr/mr_angeloux

Photo: flickr/mr_angeloux

We know that methane from cow farts is a greenhouse gas and a contributor to global warming. But how about farts from camelids (camels, llamas, and alpacas), which have a similar type of digestive system? In this study, the researchers set out to measure methane emission by camelids. To do so, they built “respiration chambers” for the animals (5 alpacas, 6 llamas, and 5 camels) — basically, sealed rooms that allowed the scientists to control and measure the air coming in and out. Then they waited for the camels/llamas/alpacas to fart. Turns out that camelids produce less methane overall than cows, probably due to their lower food intake. Still, the next time you’re feeling bad about your job, just be glad it doesn’t involve setting up camel fart chambers.

Methane Emission by Camelids

“Methane emissions from ruminant livestock have been intensively studied in order to reduce contribution to the greenhouse effect. Ruminants were found to produce more enteric methane than other mammalian herbivores. As camelids share some features of their digestive anatomy and physiology with ruminants, it has been proposed that they produce similar amounts of methane per unit of body mass. This is of special relevance for countrywide greenhouse gas budgets of countries that harbor large populations of camelids like Australia. However, hardly any quantitative methane emission measurements have been performed in camelids. In order to fill this gap, we carried out respiration chamber measurements with three camelid species (Vicugna pacos, Lama glama, Camelus bactrianus; n = 16 in total), all kept on a diet consisting of food produced from alfalfa only. The camelids produced less methane expressed on the basis of body mass (0.32±0.11 L kg−1 d−1) when compared to literature data on domestic ruminants fed on roughage diets (0.58±0.16 L kg−1 d−1). However, there was no significant difference between the two suborders when methane emission was expressed on the basis of digestible neutral detergent fiber intake (92.7±33.9 L kg−1 in camelids vs. 86.2±12.1 L kg−1 in ruminants). This implies that the pathways of methanogenesis forming part of the microbial digestion of fiber in the foregut are similar between the groups, and that the lower methane emission of camelids can be explained by their generally lower relative food intake. Our results suggest that the methane emission of Australia’s feral camels corresponds only to 1 to 2% of the methane amount produced by the countries’ domestic ruminants and that calculations of greenhouse gas budgets of countries with large camelid populations based on equations developed for ruminants are generally overestimating the actual levels.”

Related content:
Do farts carry germs? Well, it depends on whether you are wearing pants.
Flashback Friday: It is easier to fart while standing up or lying down?
Flashback Friday: Farts: an underappreciated threat to astronauts.

CATEGORIZED UNDER: fun with animals, ha ha poop
ADVERTISEMENT
  • http://www.mazepath.com/uncleal/qz4.htm Uncle Al

    just be glad it doesn’t involve setting up camel fart chambers.We demand safe zones for Human Resources, macroeconomics, psychology, Hillary Clinton, ethnic studies, gender ambiguity, ethics studies, string theory, Michelle Obama nutrition mandates, diversity, FDA, EPA, ATF, Department of Education, Obamacare, and women’s ultra-bikini volleyball.

  • Mongo

    Camel farts not so much. Llama farts – now THERE’s a problem. Pipe them into the Whitehouse for The ObaMesdiah’s edification.

NEW ON DISCOVER
OPEN
CITIZEN SCIENCE
ADVERTISEMENT

Seriously, Science?

Seriously, Science?, formerly known as NCBI ROFL, is the brainchild of two prone-to-distraction biologists. We highlight the funniest, oddest, and just plain craziest research from the PubMed research database and beyond. Because nobody said serious science couldn't be silly!
Follow us on Twitter: @srslyscience.
Send us paper suggestions: srslyscience[at]gmail.com.
ADVERTISEMENT

See More

ADVERTISEMENT

Discover's Newsletter

Sign up to get the latest science news delivered weekly right to your inbox!

Collapse bottom bar
+