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Does P. Cubensis grow within a cow?
    #29500212 -

I've seen sources that say it spreads because the spores of the mushroom 'pass through the digestive system of the cow, which is low acid and therefore does not harm the spores'. But in such conditions that the cow's stomach presents, I think the spores would be more than likely to germinate. Further, if the ungerminated spores came through and onto the dung, I think they'd immediately lose to competitors, the many bacteria present in the dung.

It makes more sense if psilocybin mushrooms lived in a low level in the stomach of the cow, and therefore it was mature mycelium which is present in the dung enabling it to fruit. And I have seen some people claim that, but doing a search of scientific sources I cannot find anyone describing psilocybe cubensis living in the stomach of the cow. Further, one could ask questions such as, whether that would have any effect on the cow's health, etc.

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Re: Does P. Cubensis grow within a cow? [Re: CreonAntigone]
    #29500349 -

That is a fascinating hypothesis and to me it sounds reasonable.  You would have to find a farmer with them in their field and ask if you could study them.  I bet you could do it.

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Re: Does P. Cubensis grow within a cow? [Re: anarchyfan]
    #29503162 -

This might be a way to find out.


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Re: Does P. Cubensis grow within a cow? [Re: ModularMind]
    #29505589 -

Let's talk Cowtek

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Re: Does P. Cubensis grow within a cow? [Re: oktopus]
    #29530406 -

Generally in metabolism, the stomach is acidic and the intestines alkaline.




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Re: Does P. Cubensis grow within a cow? [Re: Asante]
    #29530752 -

Normally the stomach is acidic, but for cows this is less so - the ph of a cow's stomach is 5.5 to 7, while for humans it is 1.5 to 3.

Edited by CreonAntigone (04/01/26 03:18 PM)

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Re: Does P. Cubensis grow within a cow? [Re: CreonAntigone] * 2
    #29533515 -

I've fed slugs Wavy Cap fruits and successfully germinated the spores from the slugs poop and grown out a fruiting culture.

I would have thought cube spores within a cows digestive tract would likely germinate towards the end of the lower intestine after the spores have passed through the rumen.

There's evidence in the research that found that spore viability increases after spores have been through the digestive system of an animal, so in species like the Psilocybes with thick melanised spore coats this would likely be due to the stomach acid weakening the spore coat and priming the spores for germination.


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Re: Does P. Cubensis grow within a cow? [Re: Dave Bennett]
    #29547208 -

Slugz, thats awesome.  Love this convo..

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Re: Does P. Cubensis grow within a cow? [Re: Dave Bennett] * 1
    #29552757 -

No, shrooms don't grow WITHIN a cow, but being digested helps the spores germinate.

CreonAntigone said:
Normally the stomach is acidic, but for cows this is less so - the ph of a cow's stomach is 5.5 to 7, while for humans it is 1.5 to 3.


This is incorrect. The vast majority of mammals have highly acidic stomachs to effectively kill off pathogens. The stomach content is then neutralized with bile before moving into the rest of the gut. Cattle and other ruminants have mutli-chambered digestive systems, in which the first chamber (rumen) indeed sits at a neutral to slightly acidic pH. However, the rumen is merely a fermentation chamber and one of the three 'pre-digestion' steps. The true stomach (abomasum) has the customary pH of 2.0 – 3.0 due to enzymatic activity, and in newborn calves it can be even lower.

Because of their multi-step microbial and enzymatic digestive systems, ruminants have some of the most effective digestion in the animal kingdom for extracting nutrients from low-quality, fibrous plant material. However, lots of coprophilous fungus (’dung-lovers’) such as Panaeolus and, yes, Psilocybe have adapted to and benefit from this for spreading and germinating spores:

Quote:
The spores of many dung fungi are on the dung at the time it is dropped by an animal, for the animal will have swallowed many fungal spores in the course of feeding. Once released from their dung-inhabiting fruiting bodies, the spores of many dung fungi end up falling onto grass and leaves. Many species of dung fungi have spores with thick walls, which weaken during passage through an animal’s gut and so ready the spores for germination, once they have been deposited with the animal’s droppings.

At the time the dung drops to the ground there are likely to be a number of fungal species with spores ready to germinate. Many of these germinate at much the same time but the mycelia then grow at varying speeds. Thus, in some cases the sequence of fruiting body appearances reflects the speed of mycelial growth, and how quickly a mycelium can accumulate enough resources to allow the production of fruiting bodies. Some dung fungi, though slow growing, are very antagonistic to other species and able to destroy or severely inhibit other mycelia.



Panaeolos sp. on buffalo dung


Psilocybe mushrooms growing from dung balls

Dave Bennett said:
I've fed slugs Wavy Cap fruits and successfully germinated the spores from the slugs poop and grown out a fruiting culture.


Super interesting stuff! I wouldn’t mind reading a write up of your ’slug tek’, Dave!

For the curious, I found a paper on spore dispersal through slugs. The laboratory experiments using Tylopilus vinosobrunneus showed that slugs carried a large number of spores in their digestive tracts. It was also observed that Pleurotus, Armillaria, and Gymnopilus spores excreted by slugs had a higher germination capacity than control spores collected from spore prints. Slug stomach contents can be similarly low to that of mammals, so pH alone is unlikely to harm them.


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Edited by Hoggorm (04/19/26 07:31 AM)

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Re: Does P. Cubensis grow within a cow? [Re: Hoggorm] * 1
    #29555634 -

Hoggorm said:
Dave Bennett said:
I've fed slugs Wavy Cap fruits and successfully germinated the spores from the slugs poop and grown out a fruiting culture.


Super interesting stuff! I wouldn’t mind reading a write up of your ’slug tek’, Dave!


If you're on Facebook I documented the Slug poop grow in my group.

https://www.facebook.com/groups/248200940425128

It was actually a follow on from an observational experiment I carried out where I fed slugs Wavy Caps to see if psilocybin changed their behaviour, which it did in quite a spectacular fashion, flipping them from nocturnal to being highly active in the daytime and increasing their feeding behaviour (also documented in the group).

The slug poop culture produced a crazy looking Wavy Cap phenotype that I've tentatively called the "Jigsaw mutation" for obvious reasons.






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Re: Does P. Cubensis grow within a cow? [Re: Dave Bennett]
    #29557792 -

Dave Bennett said:
Hoggorm said:
Dave Bennett said:
I've fed slugs Wavy Cap fruits and successfully germinated the spores from the slugs poop and grown out a fruiting culture.


Super interesting stuff! I wouldn’t mind reading a write up of your ’slug tek’, Dave!


If you're on Facebook I documented the Slug poop grow in my group.

https://www.facebook.com/groups/248200940425128

It was actually a follow on from an observational experiment I carried out where I fed slugs Wavy Caps to see if psilocybin changed their behaviour, which it did in quite a spectacular fashion, flipping them from nocturnal to being highly active in the daytime and increasing their feeding behaviour (also documented in the group).

The slug poop culture produced a crazy looking Wavy Cap phenotype that I've tentatively called the "Jigsaw mutation" for obvious reasons.







Damn, that's cool! Thank you for sharing!


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Re: Does P. Cubensis grow within a cow? [Re: Hoggorm]
    #29557859 -

Gravy caps.

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