Chemoforma Ltd.Chemoforma Ltd.

Trials in Poultry / List of trials / Literature... ...some publications

We recommend using 500 g of ASCOGEN® / tonne of feed for grand parents stock, parent stocks, breeder hens and layer. This dosage shall be maintained during the whole life. For broilers we recommend using 1000 g of ASCOGEN® / tonne of feed for the first 10 days.

ASCOGEN® an exceptional feed supplement

ASCOGEN® is a specific formulation of yeast and yeast extract: PSB-Complex®.

Recommended dosages
Grand Parent Stocks:           500 g / tonne of feed
Parent Stocks:                     500 g / tonne of feed
Breeder Hens:                      500 g / tonne of feed
Layers:                                500 g / tonne of feed
(Preferably this dosage should be maintained during the whole life starting from day-old)
Broilers:                              1000 g / tonne of feed for the first 10 days

Withdrawal period
None

Stability
ASCOGEN® is heat resistant and can be mixed with feed before pelleting or extruding

Packaging
ASCOGEN® is packed in 25 kg polyethylene-lined white 5-ply paper bags

Trials in Poultry

ASCOGEN® positively affects performance and intestinal development of broilers

Compared to the control animals, the development of the intestinal villi in the test group was accelerated. The average length of intestinal villi achieved in the control after 14 days was accomplished in the trial group at day 10. Similar results were obtained for the circumference of the villi. In general, the test animals completed the intestinal development 4 days earlier than the controls. This advance is retained throughout the life of the animals and is reflected in improved performance. Moreover, the intestinal defence mechanisms are established faster which, therefore, achieves an earlier protection from bacterial or viral infections as well as parasitic attacks.

 

In this trial the performance of the ASCOGEN® group exceeds the control group. Throughout the whole trial, the broilers fed with ASCOGEN® fortified feed grew faster and achieved a higher final body weight at slaughter.

ASCOGEN® improves the immunity

In a challenge experiment with birds from each trial groups, the protection against a virulent NDV was tested. 65% of the birds of the control group were protected from an infection with virulent NDV whereas the protection in the ASCOGEN® groups was 80% (ASCOGEN® after vaccination) or 90% (ASCOGEN® before and after vaccination) respectively.

This trial was carried out with day old male Hubbart Chicks. The control group did not receive any ASCOGEN®. The second group received 500 g of ASCOGEN® / tonne of feed 8 days before and 8 days after vaccination against NDV. In the third group, the feeding of ASCOGEN® (same inclusion rate) was started at the day of vaccination for the next 16 days.

 

The course of specific antibody titres was monitored during the following weeks. It became obvious that aside from feeding with ASCOGEN®, the specific antibody titres were increased in both trial groups compared to the control. The effect was most pronounced in the group fed ASCOGEN® one week prior to vaccination.

ASCOGEN® optimizes the genetic potential

Only farms with highly skilled management can achieve the performance target norms of the breeder companies.

In these trials, the flocks exceeded the norm of the breeder companies in terms of egg production % and laying persistency. The inclusion of ASCOGEN® in the diets enabled the farmer to accomplish the target norm of the breeding companies and fully utilise the genetic potential of the breed.

It needs to be noted that the weight of the birds on ASCOGEN® has to be carefully monitored and the feed adjusted to support the high egg production and prevent the birds from becoming overweight.


On Farm 1 the egg production % of the two different flocks have comparably responded to the feed (including ASCOGEN®) and management support. In weeks 29-31 a heat wave of 38°C caused a drop in egg production in both flocks but they recovered very quickly due to the influence of the ASCOGEN®.

The average feed usage per egg in this trial was 252 grams and the productivity exceeds the norm by 2.5 %.


On Farm 2 the trial is still ongoing. The egg production at this stage in both flocks continues to rise significantly and exceeds the breed norm by 6.6%. Moreover a reduction in mortality and an improvement in feed conversion ratio have been achieved.


The trial on Farm 3 is not yet finished. Both flocks respond and perform very closely to each other and are 6.6% above the breed production norms. The feed inputs and flock management are able to replicate a uniform performance response. Hatchability and feed efficiency continue to improve compared to the breed norms.

Moreover, ASCOGEN® leads to reduction in mortality of the birds on this farm.

List of trials

2006 - Syria
The role of ASCOGEN® in the improvement and conversion rates in broiler chicken
(not yet available)

2005 - Brazil
The effect of adding ASCOGEN® in the diet of meat-type chicken
RESTRICTED AREA: Summary of trial available

2005 - Brazil
Verification of the zoo-technical effects of ASCOGEN® in starter feed of low weight broiler chicks
RESTRICTED AREA: Summary of trial available

2005 - Peru
Vaccination trial in chicken
 RESTRICTED AREA: Summary of trial available

2005 - Slovenia
The role of dietary ASCOGEN® in reduction of DNA damage induced by T-2 toxin and deoxynivalenol in chicken leucocytes
(not yet available)

2005 - The Netherlands
Summary of Dutch case studies using ASCOGEN®
RESTRICTED AREA: Summary of trial available

2004 - Sweden
Summary of Swedish case studies using ASCOGEN®
RESTRICTED AREA: Summary of trial available

2004 - United Kingdom
Effect of ASCOGEN® on the development of the intestinal structure in poultry
RESTRICTED AREA: Summary of trial available

2003 / 2004 - The Netherlands
Influence of ASCOGEN® on the formation of cuticle eggs
(not yet available)

2002 - Finland
Achieving the breeder target with ASCOGEN®
RESTRICTED AREA: Summary of trial available

2002 - Switzerland
Effect of ASCOGEN® on growth of chicken
RESTRICTED AREA: Summary of trial available

2001 / 2002 - Italy
Trial with ASCOGEN® in broiler breeders
RESTRICTED AREA: Summary of trial available

2001 - Scotland
ASCOGEN® trial and results on different organs
(not yet available)

2000 - Hungary
Performance trial
(not yet available)

2000 - Ireland
Blood titre results for the ASCOGEN® trial
(not yet available)

1999 - Croatia
Effect of ASCOGEN® on production results of fattened chickens fed different quantities of protein
(not yet available)

1999 - Slovenia
Effectiveness of ASCOGEN® in comparison with antibiotic at turkey breeding
(not yet available)

1999 - South Korea
Duck trial, egg production, laying rate
(not yet available)

1999 - United Kingdom
Breeder trial: costing calculated on production hatchability and ASCOGEN® cost
(not yet available)

1998 - United Kingdom
Performance on their poultry
(not yet available)

1997 - Serbia
Trial with chicken. Effect of ASCOGEN® on the mast performance and the mortality of broilers
(not yet available)

1996 - Croatia
Effect of ASCOGEN® on the growth performance of Japanese quail
(not yet available)

1996 - France
Antibody titres after vaccination against Aujeszky
(not yet available)

1996 - France
Benefit in the prevention of coccidian in broilers
RESTRICTED AREA: Summary of trial available

1996 - United Kingdom
Breeding trial
RESTRICTED AREA: Summary of trial available

1995 - New Zealand
Broiler trials
(not yet available)

1995 - United Kingdom
Large scale turkey trial
(not yet available)

1995 - United Kingdom
Effect on the hatching rate of broiler breeders
(not yet available)

1995 / 1997 - United Kingdom
Attwell farms develops the all natural turkey
(not yet available)

1995 / 1996 - France
Effect on broiler breeders
RESTRICTED AREA: Summary of trial available

1994 - United Kingdom
Turkey breeder trial
(not yet available)

1993 - Bahrain
Almehza poultry farm performance
(not yet available)

1993 - Thailand
Effect of ASCOGEN® in broiler, layer and African catfish rations
(not yet available)

1993 - United Kingdom
Breeder trials
RESTRICTED AREA: Summary of trial available

1992 - France
Trial with layers
(not yet available)

1992 - Hungary
Laying performance compared with ASCOGEN® concentration
(not yet available)

1992 - United Kingdom
Haemoglobin and erythrocyte determination
(not yet available)

1992 / 1994 - Hungary
Effect of ASCOGEN® in geese especially in regard to production of down
(not yet available)

1991 - Egypt
Studies on the effect of ASCOGEN® on the immune response in chickens vaccinated with Newcastle Disease virus
RESTRICTED AREA: Summary of trial available

1991 - India
Influence of ASCOGEN® in broiler performance and antibody titres against Newcastle and infectious Bursal disease viruses
(not yet available)

1991 - Thailand
ASCOGEN®, toyocerin and chlortetracycline as feed additives in the starter of broiler diets: Effect on performance
(not yet available)

1991 - United Kingdom
Trial on broiler breeders, coccidiosis, IB variant, acute Marek
(not yet available)

1991 / 1992 - Hungary
Toxin neutralizing and immunostimulating effect of ASCOGEN® in breeding and duckling stocks
RESTRICTED AREA: Summary of trial available

1991 / 1992 - Hungary
The toxin neutralisation effect of ASCOGEN® in breeding stocks and young duck stocks
(not yet available)

1990 / 1991 - United Kingdom
Trial on broiler breeders
(not yet available)

1990 - Hungary
Effect of ASCOGEN® on the action of the Fusarientoxin F-2 on gander
(not yet available)

1990 - Slovenia
Effect of ASCOGEN® in parents
RESTRICTED AREA: Summary of trial available

1989 - Switzerland
Effects on broiler fattening
(not yet available)

1989 / 1990 - Egypt
ASCOGEN® in laying hens different inclusion rate
(not yet available)

1988 - Egypt
Comparative studies on the growth promoting effect of ASCOGEN® and flavomycin in chickens
(not yet available)

1985 - Indonesia
Results on nutritional trial with ASCOGEN®
(not yet available)

1978 / 1979 - Canada
Effect of ASCOGEN® on production, fertility and hatchability in turkey breeder flock
(not yet available)

Literature... ...some publications

Keywords: ASCOGEN®, Poultry

Hoffmann K.
Natural feed supplement improves performance

Source: International Poultry Production / 2009
>> Download <<

Keywords: Immune system, ASCOGEN®, Poultry

Hoffmann K.
Animal nutrition and immunology

Source: International Poultry Production / 2008
>> Download <<

Keywords: Immune system, ASCOGEN®, Poultry

Hoffmann K.
Managing the immunological challenges of modern poultry production

Source: FEED Business ASIA / 2008
>> Download <<

Keywords: Poultry, Performance

Zeliko M., Serman V., Mas N and Lukac Z.
Effect of probiotic on production results of fattened chickens fed different quantities of protein

Source: Vet Arhiv / 1999
>> Download <<

Keywords: Poultry, Disease, Stress

CNEVA-PLOUFRAGAN
Reinforcement of the defence of chicken against coccidiosis

Source: CNEVA-PLOUFRAGAN / 1995
>> Download <<

Keywords: Poultry, Nutrition

ATTWELL
Attwell farms develops the all natural turkey

Source: Poultry World / 1995
>> Download <<

Keywords: Poultry, Immune system

Portsmouth J. and Koeppel P.
Feeding for a better immune status

Source: World Poultry / 1993
>> Download <<

Keywords: Poultry, Fish, Performance

Thongwittaya N. Pipoppinyo S. and Puranapong P.
Effects of ASCOGEN in broiler, layer and African Catfish rations

Source: SIAM Qualified produces Ltd. Partnership / 1992
>> Download <<

Keywords: Poultry, Performance

Boulos N. Z., Shalash S. M. M., El-Sheikh M. A., Adbella H. M. and Hattaba N. A. H.
Effect of the biogenic enhancer ASCOGEN on laying hen performance

Source: Egyptian poultry science / 1992
>> Download <<

Keywords: Poultry, Disease, Stress

Ramadan A., Afifi N. A., Atef M., El-Bahy M. M. and El-Mansoury H. A.
Interactive effects of ASCOGEN and anticoccidial compounds in uninfective and eimeria tenella-infected broiler chicks

Source: Depart of Pharmacol / 1992
>> Download <<

Keywords: Poultry, Immune system

Ramadan A., Soliman R., Afifi N. A. and Reda I.
Studies on factors influencing immune response in chickens

Source: Journal Egypt Vet Med Ass / 1991
>> Download <<

Keywords: Poultry, Performance

Ramadan A., Afifi N. A. and Sabry M. E.
Comparative studies on the growth promoting effect of probioticum S and Flavomycin in chickens

Source: Journal Egypt Vet Med Ass / 1989
>> Download <<

Keywords: Poultry, Disease, Stress

Ramadan A., Atef M., Afifi N. A. and El-Bahy M. M.
Interaction between ASCOGEN® and some anticoccidial compounds in healthy and eimeria tenella-infected broiler chickens

Source: Faculty of Vet Med / 1989
>> Download <<