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Krogstrup Holnseri
V/ Aase og Erling Jolrgensen
Hornimvej 142
9640 Farsol

Telefon: +45 98 66 32 57
Telefax: +45 98 66 32 57

Visit to Krogstrup Poultry Farm run by the Jolrgensen family on 29 May 2001.


Krogstrup Poultry Farm was contacted when Stormolllen A/S wanted to hear about experiences with Stalosan and Stalosan F, which have been used at the farm with great success for 35 years. Stalosan went into production in 1966,and Krogstrup Poultry Farm has been using it ever since.

The farm's main activity is raising chickens (240,000 a year) for other poultry farms. The birds are sold to both conventional egg producers with laying cages and producers of free-range and organic eggs. There is also some research being done into the optimum feeding of, among other things, broilers (13 flocks, each of approx. 48,000 chickens, over 2 years) under the management of Erling Jolrgensen on behalf of a feedstuff firm. Krogstrup Poultry Farm has a total of 8,000 m2 of poultry houses for six flocks.

When a poultry house has been cleared of chickens, the deep litter (well-cut wheat and rye straw) is removed by tractor-shovel. After thorough cleaning and high-pressure washing (cold water), followed by extra careful rinsing, 300 kg of quick lime is slaked in a wheelbarrow and tipped into the clean poultry house while the lime is still hot. The lime is distributed throughout the building with brooms until the entire floor area is saturated with lime. The building is then left to dry for 14 days, including 6 days at 60°C of moist heat. The building is fumigated for 72 hours with 10-20 litres of Biokomplet. Three days before the poultry house receives its next flock of day-old chicks, Stalosan F is scattered along all the edges and up the plinth all around the building. Then 12-14 big bales of wheat and rye straw weighing 300 kg each are cut carefully and spread in the poultry house. Atmospheric humidity and temperature are put on the optimum setting for day-old chicks (60% relative humidity and 32°C) and the old, stagnant water is let out of all the rows of water teats into buckets until the water is fresh and cold. Approx. 16,000 - 25,000 day-old chicks can then occupy the 1000 - 1500 m² in each poultry house.

If damp areas occur during the 16 - 18 weeks that the chickens spend at Krogstrup Poultry Farm (limited by means of magnetic closers on the water teats, which are turned on and off at the same time as the lights, i.e. there is access to water 10 - 18 hours a day), or if the smell of ammonia in the poultry house intensifies, this is corrected with Stalosan F in the critical areas. A rapid response to incipient problems is important, and this is made possible by four daily rounds of the poultry house.

The lobby is also scattered with Stalosan F once a week, making it impossible to gain access to the chickens without passing through an area that acts as a barrier to prevent micro-organisms from being brought in, whether by an animal or a person. To provide further security, new gravel is laid outside the entrance to the building and raked every week.

The lorries used to transport the chickens are scattered with wood shavings and two feed-scoopfuls of Stalosan F per 15 m2 just before the chickens are loaded.

AI / August 2001



Stalosan® F
Treated Birds Recover So Much Quicker


Stalosan®F is a new broad range powdered disinfectant that, after many years successful use in Scandinavia, is now being marketed in the UK by ABF. Stalosan is a new broad range powdered disinfectant that, after many years successful use in Scandinavia, is now being marketed in the UK by ABF. Stalosan is a new broad range powdered disinfectant that, after many years successful use in Scandinavia, is now being marketed in the UK by ABF. Stalosan F is a new broad range powdered disinfectant that, after many years successful use in Scandinavia, is now being marketed in the UK by ABF. is a new broad range powdered disinfectant that, after many years successful use in Scandinavia, is now being marketed in the UK by ABF.

Recently Lincs Turkeys of Grainthorpe decided to assess the product in the early rearing stage from 0 - 9 weeks. The product is completely safe and can be applied directly onto litter whilst the birds are present. "This gave us the opportunity to continue a disinfectant programme throughout the birds rearing period"commented James Boyd of Lincs Turkeys.

"We chose two sites initially and Stalosan F was applied once per week at a rate of 50g per m2. Within 3 to 4 weeks we were convinced that something was happening" said James Boyd. The early assessment was that these treated sites had far less problems than other similar sites, both in terms of mortality and their ability to recover from setbacks. Stalosan F has a high efficacy against secondary bacterial such as E.Coli and its regular application appeared to be reducing the bacterial load facing the poults.

James Boyd decided to widen the application to other sites and his judgement has been confirmed. The major benefits over the three months the product has been used are

1.

A significant reduction in mortality, especially on some problem sites.

2.

A very significant reduction in the quantity of medication required to get the birds to 9 weeks of age.

3.

A noticeable improvement in response to medication. "You can't avoid problems at some stage but the Stalosan treated birds recover so much quicker from any problem that crops up" said James Boyd.

4.

A general improvement in the quality of litter on Stalosan F treated flocks.

Stalosan®F has been very successful for Lincs Turkeys and James Boyd has now put most of his rearing sites onto Stalosan®F.

He is convinced that the most significant impact of Stalosan®F is with young birds. However he recognises problems still exist at later stages and believes Stalosan®F may well have a benefit at certain stress points later in the cycle. In fact some producers are using Stalosan®F as a dry disinfectant break between crop cycles when litter is utilised for two crops

This work has been duplicated in other large scale trials. The reductions in mortality have been confirmed and improvements in litter were noticeably found. On one trial involving 30,000 poults the full cost of Stalosan®F was recovered in the reduction in the cost of litter.

The cost of Stalosan®F over the rearing period depends on the stocking rate and the length of the rearing period. Most systems would be in the range of 2p - 4p per bird for up to 9 weeks cover.



Worcestshire Game Farm


Paul Jeavons of Worcestshire Game Farm, Lower Wolverton
hatches about 250000 birds and rears about 80000 to six weeks of age.

He was introduced to Stalosan F last year and was intrigued by the possibilities that it offered. Like everybody else mortality, bird vigour and medication were areas of concern that affected the output and profitability of his business.

He hoped Stalosan might help him in these areas.

"We were too late for the first batch" he recalled " and we started applications before the second lot were introduced and then once a week after that."

"After two weeks there seemed to be a lot less fall-out"

Over the whole of the rearing season he estimated his mortality had fallen by 23%.

"Our normal mortality is only about 6% so I was quite surprised to have such an impact."

The birds were moved at four weeks of age for hardening off.

"Normally we would have about 10-15% that we felt were too small and needed an extra week to achieve the right size. This year there were substantially less in this category and I reckon we only had to hold about 5% back for the extra week. "

"The birds had obviously grown better, presumably because they had suffered less challenge and were healthier. I suppose we should have noticed this because our drug usage was way down on previous years"

"We felt the working atmosphere was better, for us as well as the birds, and the litter was much drier than normal. This encouraged us to use Stalosan in the straw in the night shelters as well"

" Whilst not all the improvements can be put at Stalosan's door, I am quite convinced that it played a substantial part"








27 February 2000

Paul Messenger rears about 10 000 pheasant poults at Beckland Game situated on the Hartland peninsular surrounded on three sides by the sea! He is keenly aware of the cost of disease and the value of good hygiene and uses fresh ground each year for the laying pens and rearing field.


"Our first batches of birds are strong disease free poults due in part to the use of Stalosan sprinkled around in a fine pink mist every four / five days. Drinkers are given a liberal sprinkling almost daily and any contaminated bedding removed as routine with wet spots treated with Stalosan. We run out of accommodation about two thirds of the way through the rearing season and have to resort to second rotation. In the past this has produced good poults but the fall off is much greater inevitable due to the build up of bugs. Before the day olds go in the old bedding is removed and the brooder hut and night shelter is given a major dosing of Stalosan. The grass runs are also treated with Stalosan and with in two weeks the grass is fresh and ready to take the young birds on fine days, safe in the knowledge that we have provided the cleanest environment possible. We at Beckland Game are convinced that application of Stalosan is a major break through in providing a healthy fresh atmosphere that can significantly reduce stress and helps to prevent feather pecking and worse piling up in corners. These are our personal views not based on any scientific findings but our own experiences. l We will continue to use Stalosan and strongly recommend it."









Use and effectiveness of Stalosan F in
ostrich production



Ganløse, 26 February 2002

I have been running an ostrich farm at Solgården since 1995 and in the very first year produced 180 ostrich chicks with eight breeding birds.
Solgården has 13¾ hectares of land, 8¼ of which are used to rear ostriches for slaughter.

We had no real problems with production in the first year. Our chick sheds were very primitive and the birds walked on rubber mats, which we washed down with a Virkon S high-pressure jet daily.
We used an inordinate amount of cleaning agent to keep the sheds clean and odour-free, as well as spending far too much time on the cleaning work itself.
All the movement and disturbance in the sheds also meant that there was too much stress.

As we entered our second year, all the major problems began. Our chick production had reached 350 and it was precisely the increased pressure of birds that made the stress too great, with mortality in the flock rising week by week.

The more pains we took with cleaning and feeding, the more birds died on us - until we actually gave up and went back to the number we had produced the year before. The conclusion was that it was quite simply impossible to keep very many chicks in the sheds with the cleaning system we had.

What we did was to throw away all the rubber mats, open up to allow the chicks to go in and out (parlour and yard principle) and arrange our sheds like pig houses with lots of small pens and a slatted floor (9 mm) - and we used STALOSAN F as the most important and only cleaning product, sprinkling it over the slats every morning as required.
The effect was terrific - mortality largely disappeared and the birds grew so quickly that we actually had other problems, with the largest birds being unable to carry themselves. We regarded this problem as a luxury.

The Stalosan kept all the pens "clean", i.e. there was no smell of ammonium chloride like before and the birds thrived in the dry environment created by Stalosan. We found that there were virtually no flies and the birds took no harm if they ate any of it.
Cleaning time was zero compared to before, and the birds did not have to be moved all the time, so stress was reduced to a minimum.

All in all the solution of slats and Stalosan is best for raising ostrich chicks from 0 to 8 weeks in closed sheds.

Yours faithfully