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Why did my guinea pig squeak passing a large poop after changing hay?

Updated On September 23rd, 2025

My guinea pig blue passed a large poop today & when he did he squeaked. They have been eating OXBOW Timothy hay for a year now but the quality in the hay has changed & they stopped eating it they picked out the fuzzy pieces so they haven't been getting the amount of hay they should be for around 1 month, someone said try OXBOW orchard & he's been eating it like a "pig", could not really having hay-having hay & eating lots DO THIS? he only passed 1 big poop & only squeaked then , now all normal

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on October 16th, 2017

Yes, guinea pigs needs a high fiber diet to aid in digestion and to promote a healthy gut. If he was picking out select bits, he may not have been getting enough fiber. The Oxbow Orchard grass is an acceptable substitute.

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