23/09/2021
Some people think it's weird when their guinea pigs do this or think something is wrong.
Like many things they do that might look odd, it's totally normal so wanted to share this informative post.
Did you know!?! Guinea pigs are coprophagic (meaning: they eat their own poo💩). This is to assist with getting the nutrients they need.
Rabbits🐇 produce and eat caecotrophs 💩(soft pellets produced after the first passage through the digestive tract). Caecotrophs provide a good source of B vitamins for rabbits. Because guinea pigs don't produce caecotrophs, they need B vitamins in their diet. These vitamins come from pellets and veg.
Added 💩 Info - Whilst rabbits and guinea pigs have similar gut transits there are some differences. In rabbits, large fibre particles are separated from small fibre particles in the first part of the colon. The large particles pass on through the colon and are excreted as hard faecal pellets, the small particles are returned to the caecum to undergo fermentation, forming a paste. This paste then passes rapidly along the colon forming the cecotroph.
The passage of ingesta through the gastro-intestinal tract of guinea pigs is somewhat different. Guinea pigs return bacteria to the caecum from the colon using a mucus trap method, but this contains very few or no food particles. The faecal pellets guinea pigs eat during coprophagy have not come directly from the caecum, as in rabbits. Therefore, are not termed cecotrophs.
The Quesenberry, Orcutt, Mans and Carpenter book 'Ferrets, rabbits and rodents, clinical medicine and surgery 4th edition' states "unlike rabbits, guinea pigs are not caecotrophic." This is supported by university of Illinois notes on caecotrophy in rabbits which states "rabbits are unique in that they practice caecotrophy."
Whilst both animals eat faecal material that has passed once through the gastrointestinal tract, in order to get more value from their diet, the passage is slightly different and hence the faecal material guinea pigs eat are not by definition called caecotrophs.
😁More will be explained about the differences between rabbits and guinea pigs in our blog next week.👀