Sow and Piglets in an Alternative Farrowing System

This documentation is intended to study the behaviour of a sow (Auntie Brownie) and her piglets in a pen of size 240 square feet (22 square meters or 26 square yards). Auntie Brownie is 2 years and 6 months old and this is her second parity. The first parity was in June 18, 2017 and the second was in December 19, 2017.

Typical sow nesting behaviour (above). Dry banana leaves are the preferred nesting material in the tropics.

Auntie Brownie began expressing the need for nesting materials by pawing the ground (soil and wood chips). We gave her the dry banana leaves earlier collected for the purpose. She picked them up, placed them in a corner of the pen and shredded them. Nesting behaviour may take place between 6-12 hours prior to farrowing, other pigs may take as long as 2 days. Auntie Brownie took only about 5 hours. Then lay down and started the farrowing process.

In this video (above), the first two piglets born are vigorous and struggle to detach themselves from the umbilical cord and reach their mother’s teats. It takes a while for the piglets to attach to a teat, maybe between 5-15 minutes. Auntie Brownie lay down on the nest she built in a way that allows access to her teats.


In this video (above), eight piglets are born and Auntie Brownie is up moving the nesting materials around. This appears to be the mother’s way of “training” her piglets of her presence. In succeeding videos, Auntie Brownie commences nursing by moving nesting material about, signaling to the piglets her intention to lie down so that the piglets are aware of this and may avoid being crushed. Good sow instincts are supposedly indicated by nesting behaviour, pawing and moving the nesting materials about.


Here  (above) are the eight piglets born within 2 hours (two more piglets were born at a later time we were unable to observe). Auntie Brownie is aware of a good lying position that allows access to all her teats. The piglets take their time to establish teat order.


Here (above) are all ten piglets at 16 hours of age. Teat order is established amongst seven of the piglets while three piglets are still unable to attach to their corresponding teats and therefore engage more in fighting. These are smaller piglets in the litter. Larger more dominant piglets often don’t engage in fighting during nursing. One large piglet on the right has mild milk scour. We notice this in a few piglets in previous litters during the first few days.


The piglets (above) call for milk and Auntie Brownie, obliges. The piglets are 7 days old in this video and have already been trained by the mother not to go near her side as she prepares to lie down. The safest place would be at her head or a good distance away. Auntie Brownie tries to lie down carefully but she still lands heavily on her side (she was much more careful when the piglets were still unable to coordinate their movements with her). Notice one piglet on the left seem to have difficulty interpreting its mother’s call, it would’ve been crushed if it was closer to Auntie Brownie’s side. We usually call piglets like these “the wind-up toy” because they go oinking about before finding the mother’s teats. They usually grow up fine, catching up on the others. Some fail to thrive and die or are unable to move quickly and get accidentally crushed by the mother.  Some piglets want more milk and one goes to the mother’s head to complain. Auntie Brownie decides they have had enough and she lies on her teats, pushing everyone off without hurting them. If a piglet gets trapped and it manages to squeal, Auntie Brownie will adjust her position. If a piglet is unable to squeal, then fatalities occur. If we see what has happened we can help and try to coax the mother to get up and move so the piglet can run away. Sometimes there is fighting during feeding and the piglets bite their mother’s teats with their sharp needle teeth. Luckily, Auntie Brownie is a very patient sow: she growls when she is hurt and she will move to push off the piglets so she can adjust her position. This allows better teat access and fighting stops. After feeding, the piglets go out for a stroll in the garden, to poo and pee, and to play. This is when the mother can rest and relax. We made a piglet escape hatch on one side of the pen.

The following day, the second to the smallest piglet died, apparently of crushing in the night.


(Above) Auntie Brownie lies down a distance away from her 10-day old piglets. She calls the piglets and when they arrive, she adjusts her position to accommodate them. This is a much safer way of nursing piglets with less risk of crushing. The piglets sleep a distance away from the sow, in this case, the piglets have learned to sleep in the creep space provided. The creep space is attractive to the piglets not so much because of the lamp but because of the piglet escape hatch — the piglets are always excited to go out of the pen and into the garden for adventure. The “heating lamp” we are using produces bright light which distracts piglets. We will have to replace this with infrared heat lamps next time, although heating is really only needed when it rains during the cold season (December-March).


(Above) Auntie Brownie lies down and 10-day old piglets converge around her, waiting for the signal as to which side she will be lying on so they can coordinate their movement. Larger and more daring piglets now tend to access the teats before the mother could lie down, ignoring the mother’s attempt to get them to converge at her head by moving nesting material about. At this point, the role of nesting material in the nursing pattern is less important.


Auntie Brownie’s piglets, now 2 weeks old, playing (above). Pigs get excited whenever big rain comes. Notice the little piglet on the left – he’s a little bit slow and gets overwhelmed by the others quite easily, but is managing OK – he is the runt in the litter. Everyday, the piglets are allowed out to play in the garden but not today because of bad weather. They miss their garden adventure but are happy enough playing indoors instead!


Piglets here (above) are 18 days old. Auntie Brownie lies down very carefully. As mentioned earlier, piglets are now more daring and access the teats even when the mother has not yet laid down. The runt on the right side is unresponsive to the mother’s position or grunting calls. This is when crushing occurs. Since Day 1, the runt has had some troubles establishing good feeding regime with the mother and litter mates, although teat order has been established. The runt also seemed to have problems digesting its food, its belly was contracting rapidly and even if it had teat access it abruptly stops feeding and walks away slowly. The runt died the same day this video was taken.


(Above) Lying down and nursing behaviour well established, but sometimes Auntie Brownie changes her mind! 🙂 She has started to teach her piglets to sample solid food. The largest piglet began sampling mother’s food by age 5 days. Piglets here are 19 days old.

We hope this documentation is useful for those considering alternative gestating/farrowing systems. This system does not address group housing because we are only micro-scale.


Natural Farming: Does it really work?

When we started breeding and raising pigs in a backyard setting, we decided to keep everything small-scale and as close to nature as our resources could allow. Ideally, this means pasture-raised pigs. However, we don’t have the luxury of the space. So we kept only a few pigs and provided spacious accommodation for them, roughly about 20-25sqm for 1 boar or 1 sow or 5 growers.

We built pens for our pigs that are large, well ventilated and get plenty of sunshine. The pens have grass, bushes and soil flooring, not concrete. Apparently, pigs love rooting and digging the soil, thus, the conventional pigpen designs with concrete flooring would be against our principles.

The natural principle also means giving pigs plenty of green forage, fruits, roughage and other organic materials to eat. Again, our limited resources make it impossible to give even a few pigs 100% natural diet. So we supplement with commercially-produced pig feeds in pelleted form.

To imitate the pig’s preferred natural habitat of the forest, we introduced plenty of organic material (mostly dry coconut leaves) which absorbs moisture and urine and at the same time provides soft bedding for the pigs. When a pig gives birth (or farrows), we provide plenty of dry banana leaves for nesting. Every now and then, we put wood shavings and rice hull into the pens to keep the flooring dry and provide entertainment for the pigs. Ashes and burnt pieces of wood from cooking are also collected and placed into the pens after we learned that ashes were good for piglets.

Perhaps due to the “lucky” combination of these conditions, our pigpens did not emit irritating odors. The only time we had an odor problem was when the roof of the pen started rotting and rain flooded the area. It seems that a large majority of irritating odor problems associated with pigs take place when the water content of beddings are over 30% and in the case of concreted floorings, when water, urine and manure are mixed, no matter the amount or proportion. This is why concreted floor pens need to be cleaned and washed with large amounts of water several times a day. Our pigpens never need cleaning.

We have had 4 farrows with no incidence of disease amongst the piglets. This is surprising for many who see the piglets amidst soil, rotting vegetation, manure, urine and mud, all widely perceived as unhygienic conditions. While we have had no problems after 2 years, we do think about the possibility of build-up of pathogenic bacteria in the pigpens after a longer period of time. This is why we are currently taking measures to rotate the pigs in different pens so as to enable the vacated pens to fallow and completely turn into compost before seeds of cover crops are sown over the area.

After 2 years, we seem to have established a system of pig-keeping based on farming philosophies more widely known as Natural Farming (pioneered by the Japanese Fukuoka Masanobu) and Korean Natural Farming (KNF, promoted by the Korean Han Kyu Cho). These are broad farming philosophies and principles that have numerous applications.

Although our own principles and practices are fairly successful so far, we are now experimenting with KNF, particularly, the role of the diversity of indigenous microorganisms and beneficial microorganisms in keeping healthy pigs in a healthy natural environment. We are particularly curious how the more focused and directed approach of microorganism production and harvesting would be most useful – not only for livestock, but for crops as well.

As part of our pig raising experiments, we have a smaller pen, about 2sqm under the house, where a 10-week old piglet is kept. The piglet is fed a high-density diet (crude protein of about 16%) and a small amount of fruits and forage materials such as trichanthera (madre de agua), banana leaves, ipil-ipil, papaya, etc. Odor events in this pigpen are more frequent and were greatly minimized by spraying the area with lactic acid bacteria solution (known in KNF as LABS, made by fermenting rice washing with milk) and fermented plant juice solution (known in KNF as FPJ, made by fermenting shoots and leaves of vigorously growing leafy vegetables and brown sugar). These are also added to the piglet’s drinking water. Occasionally, wood shavings are thrown over the manure then sprayed with the solutions mentioned above. Given the small space for this piglet, the results of using fermented solutions have been impressive. We are yet to successfully produce indigenous microorganisms (known in KNF as IMO) and introduce that to our pigpens and surrounding gardens together with FPJ and LABS.

While NF and KNF systems seem to work quite well for us, we will be regularly sharing results of our experiments in the near future. We do have a number of failures which we will share here as well.

In the meantime, below are some resources that might help those interested in learning more about natural farming. Good luck!




YouTube Video Channels

A Better Pig Accommodation

Two months ago, I finally got one of the pigpens rebuilt. It is Sow Number 3’s pen. I wanted better accommodation for her when she farrows around the last week of August. The old pigpen has a leaky nipa roof and the fences and door serve as aperitif for Number 3. Several times Number 3 escaped from her old pen and terrorized the village. 😉

The old pigpen with the new pigpen being built around it.

I came up with the design of the new pigpen based on observations and interactions with Number 3, studying pigpen housing standards and designs on the Internet and discussing the design plans with Trevor and the carpenters Kelly and Jessie.

The real test of the new design will be when Number 3 farrows. We will put the metal barrier and light for the piglet creep space into the pen soon. The pigpen has a total area of about 25 square meters, a comfortable space for one pig. My ideal is a large pasturing area, but we don’t have that much space. This is the best we can do!

The new pigpen allows more air and sunshine with a higher roof. It is certainly more durable than the old pen which was built using bamboo and wood. Such a pen is fine if we were keeping a pig for fattening, but a sow is a strong and powerful animal weighing up to 150 kilograms.

There will be two more large pens to be re-designed and built (for Sow Auntie Brownie and Pinky Boar) and two smaller pens for fattening a pig or two. The old pens are still usable but they are falling part and require much maintenance. I am hoping construction will be push through in September. The new farrowing unit will include an escape hatch for piglets (so they can enjoy the garden while they are up to 3 weeks old and give their mother a chance to relax).

Later, Trevor and I will look into developing the gardens (and possibly a pond or rain garden) around the pigpens so the area will be cooler, more productive and provide forage for the pigs.

Our foreman Kelly and the finished pigpen!
Lots of space for Number 3!
The feeding trough can be filled up from the outside of the pen.


Two Farrowings in December 2016

We had two farrowings in December 2016. Sow Number 1 (second parity) and gilt Number 3 (first parity). Number 3 gave birth to 4 piglets on the evening of December 25. Number 1 gave birth to 11 piglets on the evening of December 30.

Both Number 3 and Number 1 were serviced through artificial insemination by Ogie from Corella. It costs PhP1,500 per AI. Number 3 was inseminated with a Large White boar while Number 1 was inseminated with a mixed Pietrain boar.

Number 3 had only 4 piglets so they were exceptionally large, she had a bit of a hard time delivering them (roughly 30 minutes between each piglet). She successfully reared all of her 4 piglets without supervision, no crushing incidents. The piglets – 3 males and 1 female – were sold at weaning age of 6 weeks for PhP2,500 each. The males were castrated by Bebe at PhP50 each.We prefer not to castrate the piglets but buyers insist on buying only castrated male piglets. Because of this, we have opted to keep 1 or 2 males from a litter to keep for ourselves, un-castrated.

Sow Number 1 showing all her teats!

Number 1 crushed 4 of her 11 piglets. She also had enormous troubles farrowing, perhaps a kind of sow hysteria. We kept the piglets away from her throughout farrowing until she was able to relax and lie down to allow the piglets to suckle. The piglets were sold at weaning age of 6 weeks for PhP2,500 each (actually, buyers keep asking for discounts so we sold the piglets for PhP2,400 each and the runt sold for PhP2,000).

Overall, we consider the 2 farrowings a success, with a total of 11 piglets raised with no problems. Their tails and teeth were not cut, they were not injected with any vitamins, supplements or antibiotics. For iron supplement, which can be critical in some cases, I use instant iron drops instead of injections. We decide on much less intervention during farrowing next time.