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International Journal of Poultry Science

.: Home > International Journal of Poultry Science > 2008 > Volume 7 Number 9 > K.M.S. Islam1, A. Schuhmacher2, H. Aupperle3 and J.M. Gropp2

Fumaric Acid in Broiler Nutrition: A Dose Titration Study and Safety Aspects

K.M.S. Islam1, A. Schuhmacher2, H. Aupperle3 and J.M. Gropp2
1Department of Animal Nutrition, Bangladesh Agricultural University, Mymensingh - 2202, Bangladesh 2Institute of Animal Nutrition, Nutrition Diseases and Dietetics, Gustav - Kühn - Straكe 8, D - 04159 Leipzig, Leipzig University, Germany 3Institute of Veterinary Pathology, An Den Tierkliniken 33, D - 04103, Leipzig, Leipzig University, Germa
Abstract :

Six isonitrogenous (22.8% CP) and isocaloric diets (13 MJ ME/kg) containing 0, 1.25, 2.50, 3.75, 5.0 and 7.5% fumaric acid (FA), respectively, were fed for 26 days to 12 (replicates) x 8 (chicks per replicate) Lohmann-Hybrid newly hatched male chicks (48 g body weight) per treatment. The diets consisted mainly
of wheat and soybean meal. Mortality ranged between 0 and 4 %. Final body weight (and feed efficiency)
amounted to 1,506 (756), 1,597 (767), 1,532 (754), 1,485 (759), 1,342 (738) and 1,378 g (747 g gain/kg feed) for the groups with 0, 1.25, 2.50, 3.75, 5.0 and 7.5% FA, respectively. The 1.25% FA group showed
significantly (p<0.05) better weight gain than all other groups and better feed efficiency than the groups with
5.0 and 7.5% FA. Higher gain was associated with higher feed intake. Body weight of the 5.0 and 7.5% FA
groups was significantly lower than that of all other groups. It is concluded that 1.25% FA may promote
growth of broilers, but the effect disappears with further increasing doses. The relative weight of heart, liver
and spleen was not affected by the treatment. Pathological findings summarized to 5/10 in the 7.5% FA
group, to 1/10 in the control and to 2-3/10 in the other groups. The 7.5% FA group showed also the highest
incidence of kidney alterations and slightly thinner duodenal wall. From the findings the margin of safety is
concluded to be about 3% (3.75/1.25) considering 1.25% FA in the broiler diet as the optimally effective
concentration.

Keywords :
Fumaric acid, broiler nutrition, wheat meal, soybean meal

Date Deposited : 13 Jul 2011 09:40

Last Modified : 13 Jul 2011 09:40

Official URL: http://www.pjbs.org/ijps/ijps.htm

Volume 7, Number 9, - 2008 , ISSN 1682-8356

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