Penac – The natural, better alternative

Natural, holistic solutions for improved meat quality, the alternative to growth stimulants,
the answers to your ammonia problems

And it puts money into your pocket

From Germany comes a product range, which is organic, free of chemicals and toxins
penac – is successfully being used in more than 25 countries.

Everyone knows about the "animal waste" management problems in Europe as well as the ever increasing trend towards lesser chemicals and the new legislation for the prohibition of the use of antibiotics (except in acute cases) and growth stimulants (Denmark and Sweden passed it, Germany is in process, all other EEC members will have to follow), Japan is also thinking very organically. This trend has forced the administrative body of the EEC to search for solutions. Penac has been awarded with various contracts by the EEC (totaling over DM 6 Million) in its effort to find solutions for the above mentioned problems. The research work of these contracts is mostly done with penac (penac is in some of these contracts the sole contractor) in 35 pickeries and 35 dairies. Denmark and Sweden have done pioneering work in this regard and all penac products are used extensively in these and other European countries.



1. Why penac and which product of the total range should be used in a piggery

Problem no. 1 – AMMONIA

To prohibit the breakdown of nitrogen into ammonia gas penac-k is sprayed on walls and floors of pig sty’s, these must be clean, and bedding is also treated with penac-k. From this moment no development of ammonia anymore. You, dear reader, as a specialist in husbandry, especially pigs, know the positive consequences – no flies, no rodents, better lungs, lesser infections, lesser mortality, no smell, etc..

Problem no.2 – THE SLURRY

  1. It blocks the canals and pipes to the pit/dam and needs enormous amounts of water to be cleaned away – which is not only a waste of our precious and limited water resources, but the constant wetness (especially in winter) around the pigs environment does not create the desired micro-climate. Also the slurry-dams have to be built very much bigger which again costs extra money.
  2. It creates ammonia gasses – see under 1 –
  3. The slurry dams are an unsolved management problem
  4. One of the best sources of organic fertiliser is in most cases not utilised and in cases where it is given back to the soil it causes destruction by burning the young shoots and roots, the burning of microbes in the soil (further destruction of our soil), pollution of the ground water (this is then pumped up again and one wonders why it contains so many pathogens – making not only the plants, soil and animals sick, but also the humans). The dams are often covered with a crust, which acts as a lid, preventing oxygen to penetrate the slurry. Result: A totally anaerobic slurry full of pathogens and toxins. The major handling problem of these dam contents is the non-liquid form.


 First action

We have to liquify these dams. Taking the size of dams or reservoirs into consideration, any means of mechanical agitation is not only too costly, but also often a hopeless undertaking – even in pits the agitators often cannot do the job properly.

Solution: 1:1,5kg penac-g per 100m³ is diluted in water. This mixture is brought under the crust – the larger the dam the more inoculation spots we need to choose. This is all that needs to be done, provided there is still bacterial life in this dam. If too many chemicals were used it can work much slower or maybe not at all. We could then try to inoculate the dam with fresh clean manure. If no chemicals are in the dam then slowly the crust will start dissolving until after 6,8 weeks or 3 months by which time the crust has dissolved and the liquid slurry is now an aerobic, harmoginous, healthy fertiliser that can be easily pumped out and used safely on even young plants. And it does not stink. And a natural aerobic fertiliser gives you much better growth; much sweeter pastures, very much richer in nutrients – so here you save again. With penac you always save money and make money.

Second Action

Once your dam is in order you never again have to treat the dam, because small amounts of the penac-g are regularly applied directly in you canals, eliminating the last source of ammonia creation and its known side effects, the smells, the attraction of flies and rodents, the blocking of pipes and the dam conditions described above. Now everything is in a healthy, aerobic condition and you are not losing money, but you are making money and contributing to a healthier environment, not only on your farm, but globally.


To achieve these top conditions your slurry canals have to work properly, meaning you need working sluices so you can keep the penac-g treated slurry in the canals until they are full (saves you a lot labour and water and creates this perfect atmosphere). You now need to clean them only every few weeks with very little or no water at all.


We all thrive for healthier more resistant animals, a lesser mortality rate through diseases, rejection of chemical residues in meat, to improve the overall meat quality, increase the lean meat percentage, have better feed conversion and same or even better weight gain. And it must not cost more. We help you to save and make money. How? Answer - Leave out growth stimulants and other chemicals and instead use penac-t.

50g penac-t / ton of feed will achieve the above mentioned results

Cost per ton of feed R14.70 and look what you get for it.

The advantages of penac-t are as follows:- (1) It first cleanses the animal’s intestines from unwanted bacteria, fungi etc. thus creating a more aerobic condition in the intestines and then in the whole organism. Through that we achieve a better feed conversion, less methane gas, improved manure quality. (2) The whole metabolism of the animal becomes stabilised, the animal’s health and resistance improves dramatically, resulting in peak performance , best meat quality, improved lactation, better fertility.

This is really all you need:

Except maybe our penac-kat: to give you a revitalised water (fresh spring water quality), soft, and good tasting and free of pathogenic bacteria. Should you pump your water from a borehole or use municipal water it is advisable to install a penac-water kat. It is a one-time investment, needs no electrical or other energy, no maintenance and has a yet unknown life span, the oldest one has been in use for fifteen years now. The penac-kat is a water conditioner for your home, farm etc, needs no chemicals, no filters, no electrical connections, no plumbing installation. Some of our farming customers operate 5 and more penac-kats in their houses and various boreholes, ask us for more details. Price – R3500.00 (excl VAT).

Just a few examples:

Cape, Muldersvlei, Manager D.Diemont: Since the implementation of penac, meat quality, animal health, condition in sties has continuously improved. The to the piggery attached meat sales, butchery and restaurant had a fly problem - after starting with penac - no more problems.. A top daily newspaper wrote about Muldersvlei in a very long article mentioning that the piggery is going in the direction of organic farming. The two largest retailers in South Africa want to buy from this piggery because of the improvement of the meat quality.

Tygerfontein, E. Buhr has stated to use penac and within two days improvements were noticeable.

Free State, Piggeries began using penac

Other farmers reported no more flies within 24 hours.

Korea: After official recommendation of penac-t by the government (this involved many prior tests of course) and entering a contract with the largest feed producer, the use of penac-t supplemented pig feed has between June 1997 and December 1997 risen from 0 – 9000 tons. In Korea far more than 500,000 sows are now under penac-t and the number is growing every month. Our man in Korea, Mr. K Park, received special distinction by the ministry for his determination and innovations with regards to pig slurry management. Pig slurry was up to Mr. Parks innovation, seen as a problem waste and therefore either fell under "safe management" or was just released, as it is also done quite frequently in South Africa, in rivers. And instead of utilising this valuable natural fertiliser, chemical fertilisers were used. His innovative idea of large portable slurry containers which now are used in conjunction with penac-g to collect and treat the slurry. A good idea solved various problems: (1). The fly and smell problem (2) The contamination problem (3) the cost problem for chemical fertilisers.

Extracts from user reports:-

1. Feedmill AG, Switzerland reports:– In most trials penac-t showed much better results in comparison to antimicrobial stimulants (AML) on the basis of antibiotic (medicated Foods) – soon to be prohibited. Significant was the higher percentage of valuable meat (AWF) and the therefore higher sales prices.

2. Peter Hodel Piggery – penac is more economical.

Better fertility together with higher meat quality.

3. Denmark – The long term effect of penac-t in the breeding of porkers

Description of the experiment

The purpose of the experiment was to establish the effect of penac-t on porkers as regards to daily weight gain and fodder utilization when used with fodder free of antibiotics. Penac-t was not given to the piglets only the porkers – starting at the weight of 30 kg. The average slaughter (dead) weight is 72 kg.

Number of porkers: around 1700 each quarter or a total of app. 12.000 porkers (all from own production).

Fodder: dry fodder with about 44% wheat, 22% barley and 34% premanufactured fodder mixture from the mill. When penac-t was used: 50 g per ton total fodder.

No other penac-products than penac-t were used.


Penac-t was initially used only during the 3rd quarter of 1996 (however, a larger percentage of the pigs slaughtered in the 4th quarter 1996 had already been fed penac-t during the 3rd quarter).

The reason for discontinuing penac-t after 3 months was that the farmer had at the same time changed the coarseness of the fodder and therefore was not sure which factor accounted for the increased weight gain.

There was a substantial weight gain in the 3rd quarter of 1996 (with penac-t) and it rose even higher in the 4th quarter (partly with penac-t). There was then a gradual decrease and in the 2nd quarter of 1997 the weight gain slumped to the level where it started (before penac-t). – From this it seems that penac-t creates changes which go beyond the duration of actual application of the product.

One month into the 3rd quarter 1997 the farmer decided to start up again with penac-t and promptly the weight gain improved (in spite of very hot weather conditions where the pigs normally lose their appetite). In the following 4th quarter of 1997 there was an additional increase of weight gain.

The increase of weight gain was accompanied by a decrease of fodder consumption which shows that penac-t improved metabolism (and thus economy).

Trial 1 & 3 shows the growth of the animals when less feed was needed. Trial 2 the pigs used more feed and delivered noticeably higher meat quality. On average all the trials show increased profitability.





With penac-g problematic germs etc. can be eliminated by up to 99%. In Vietnam the pig farmers are officially advised by the government to use the penac products. Here some results with penac-g (60 farms) after only one month:













Germs Total



Coliforme Germs



Faeces coli



Worm eggs




Sasse – a breeder in Germany . He breeds and sells to Korte Fattening Unit. In 1990 Sasse took over from his father – 180 mother sows and since the implementation of penac, produces now the same amount of piglets (no losses, no medication needed) with only 123 mother sows (26 piglets per sow, 2.2 litters/year). Their meat is of such high quality (no chemical stimulants), a higher quantity of lean meat, less moisture, better taste that two years ago a chain market in Germany installed special sales counters for their meat.

If you want to know more about the Sasse – penac concept please contact us

Since with penac the cows produce 10-15% more milk – one piggery is now monitoring possible lactation increase with sows. We are also hoping for higher fertility.

With penac : Better weight gain under reduced feed consumption and it costs less.