How To Make Deep-Bedding System (DBS)
1. Dig one (1) meter deep. Keep an inch of solid ground from the walls intact. This way the pigs could not burrow under and eventually eat your hollow blocks walling.
2. Start filling up your hole by putting a half- foot of dried coconut hulls.
Sprinkle with indigenous microorganism (IMO2) – prepared by diluting a small sardines tin can of pure IMO2 in a pail of water which is around fifteen (15) liters.
3.Chop the usual slice of coconut husk into three (3) and fill up a foot of it to the hole.
4. Gather dried leaves and fill up another foot. Sprinkle with IMO2.
5. Fill up the remaining hole with a combination of fertile soil, sawdust, carbonized rice hull, and salt.
To mix, i use this ratio:
3 sack of sawdust,
3 sack of rice hull, (better if you can carbonize it)
4 sack of soil,
3 kg of salt.
Sprinkle generously with IMO2 while mixing. Form in to a pyramid and cover for three (3) days. This is to allow the IMO to multiply in the final layer of your DBS.
farm update 
very nice… it is posible to do this with rice hull alone without sawdust?
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joakim
December 28, 2012 at 1:49 pm
yes, you can. just add the proportion of sawdust to rice hull.
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Veni
January 8, 2013 at 4:34 am
Hi Joakim, yes i ended up doing it mostly with rice hull as it is more easily accessed than sawdust.
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Veni
September 19, 2013 at 11:10 pm
Your blog is very informative. Thank you!
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abesolutionsblog
June 3, 2013 at 7:57 am
You are welcome! Glad to be of help. Happy farming!
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Veni
September 19, 2013 at 10:36 pm
can i use coconut sawdust instead of rice hull since we have lots of stocks on hand because we are a coco lumber dealer?
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earl
December 28, 2013 at 8:23 pm
Hi Earl, yes you can use sawdust mixed with soil.
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Veni
December 31, 2013 at 1:17 am
hi sir.. may i ask what is the use of salt?,
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silcax
January 24, 2014 at 5:31 am
Hi. The salt will control the presence of bad microorganisms. And it’s a she. Veni is short for Veronica 🙂
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Veni
January 27, 2014 at 11:30 am
Hi! We found your article very interesting and we would like to replicate it. You’ve mentioned the proportion of the materials used for bedding. However, I did not see the floor area for the said proportion. May I know what the floor area is? Thank you very much!
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joy
January 31, 2014 at 12:23 pm
The floor area will depend on you, like how many hogs will you grow? Sows will require at least 2x3m each while fatteners, lesser areas. Basically natural farming concoctions are diluted at 10:1000. That is 10ml concoction to a liter of water, or sardines tin can (150ml) to a pail of water (15 liters).
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Veni
February 2, 2014 at 5:24 am
good info. i’m starting my own DBS. i just want to ask what is the purpose of coconut husk at the bottom? i’ve also read that you can also use logs.
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phradaka
March 29, 2014 at 7:06 am
Like an extender. One meter deep mixture of beddings will be a lot if raising on a commercial scale. The coconut husk at the bottom will just absorb one cycle’s worth of hog manure. After the hogs are harvested you can replace the beddings up to the level of coco husks.
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Veni
March 29, 2014 at 8:54 am
i see. won’t it affect the beddings in any way? we’ve reduced the total volume of sawdust mixture at the top, so will it affect the moisture and the coolness of the beddings, microorganism population, and etc? can it also be used to keep water out of the sawdust beddings in case there is a pooling of water at the bottom? thanks.
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phradaka
March 29, 2014 at 9:31 am
The water pooling at the bottom will be the accumulation of hog’s urine. The husk will absorb that. Just always spray lMOs in every layer to keep the bad bacterias at bay.
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Veni
March 29, 2014 at 9:36 am
hi, maam. base on the ratio of your raw materials above what is the floor area? salamat po.
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seven r natural farm
July 27, 2015 at 11:13 pm
The photo had a floor area of 3x4m.
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Veni
July 27, 2015 at 11:17 pm
Why did uou saw sawdust? Can it remove the odor? Why did you use salt? Can it remove the odor?
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Justine rivera
March 12, 2018 at 10:17 pm
Hi Justine, I put sawdust as one of the medium. Salt acts to regulate growth of bad bacterias. No bad bacteria means no odor.
Hope that helps.
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Veni
March 12, 2018 at 10:35 pm
Hi, how long/ how many months can we replace the bedding (and the coco husks)? Then, can we already use the “harvested” bedding to plants as natural fertiliser? Thank you for your reply!
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Natheya
September 14, 2018 at 4:50 pm
I use them for one growing cycle of fattener pigs, that’s around four months. Throw them under your vegetables or trees as fertilizers.
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Veni
December 27, 2018 at 1:11 am