I’m sorry to hear this.
No, you don’t switch between poop soup and mushed pellets. They are two different things with two different purposes.
Mushed pellets or critical care is fibre rich food and is what is needed to replace the lost hay intake and keep the gut functioning. He needs be fed every 2 hours through the day. You need to aim for 60-90ml per day but an absolute minimum of 40ml for survival.
Weigh him every morning so you know you are feeding him enough each day. You need to keep his weight stable each day.
Poop soup is simply gut bacteria transfer from a healthy piggy to a poorly piggy to help replace lost digestive bacteria. It is not food and will not keep him alive through stasis. You can give it a couple of times a day.
To make it you put your other healthy piggy In a box and give him some snacks. As soon as he produces poops, immediately put them in water. It has to be immediate because the bacteria start to die off as soon as the poop is produced. Leave the poops to soak in the water for five minutes. Then discard the poops and syringe the water to your poorly piggy.
I hope he is ok
1 Not eating (anorexia) and the importance of syringe feeding fibre
2 Soft poos and runny diarrhea
3 Acute bloat (severe dysbiosis) - blockage - twisted gut - persistent milder bloating
4 GI stasis (no gut movement)
Severe runny diarrhea, bloat, blockage or a twisted gut, GI stasis and excessive salivating in guinea pigs that are not eating are absolute life and death emergencies that need to be seen ASAP by an out-of-hours vet at any time of the day or night or that should be seen by a vet as soon as you can get an appointment outside the UK...
Introduction
1 Choosing the right place to medicate/feed your piggy
2 Guinea pig whispering and asserting your authority
3 Recovery products and emergency improvisation
4 Syringe recommendations
5 Weight monitoring: your biggest ally
6 Weight loss guidelines and when to step in with feeding
7 Syringe feeding amounts/frequency advice
8 Practical medication and syringing tips
9 Medicating and feeding cooperative guinea pigs (videos)
10 Medicating and feeding uncooperative guinea pigs (hold pictures and tips)
11 The line between life and...
1 Weight and Weight Loss
- Why regular weight monitoring matters
- How weight changes over a lifetime
- How to weigh on your kitchen scales (with video)
- The weight loss rules
- How critical is the weight loss for my piggy?
- Possible causes for weight loss
2 Body Mass Index (BMI) or 'Heft'
- Why is understanding your piggy's weight so important?
- 'Average' weight vs. individual weight - the big trip up
- How to check for the BMI...
1 Overview of recovery formula foods
- Recommended brands
- Emergency alternatives
2 Probiotics
- Standard brands
- Enhanced probiotics
- Live gut microbiome transfer (poo soup)
3 Vitamin C
- Recommended brand
- Alternatives
- Booster vs. long term supplementation
These chapters have been copied from the complete hand feeding guide with the kind permission of @helen105281...