Czech J. Anim. Sci., 2005, 50(1):31-39 | DOI: 10.17221/3992-CJAS

Effect of dietary esterified glucomannan on performance, serum biochemistry and haematology in broilers exposed to aflatoxin

H. Basmacioglu1, H. Oguz2, M. Ergul1, R. Col3, Y.O. Birdane4
1 Department of Animal Science, Faculty of Agriculture, Agean University, Izmir, Turkey
2 Department of Pharmacology and Toxicology,
3 Department of Physiology, Faculty of Veterinary Medicine, Selcuk University, Konya, Turkey
4 Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Afyon Kocatepe University, Afyon, Turkey

The amelioration of aflatoxicosis in broiler chickens was examined by feeding two concentrations of yeast component (esterified glucomannan; EG). EG, incorporated into the diet at 0.5 and 1 g/kg, was evaluated for its ability to reduce the detrimental effects of 2 mg total aflatoxin (AF; 82.72% AFB1, 5.50% AFB2, 10.20% AFG1 and 1.58% AFG2) in diet on growing broiler chicks from 1 to 21 d of age. A total of 240 male broiler chicks (Ross-308) were divided into 6 treatment groups [control, AF, EG (0.5 g/kg), AF plus EG (0.5 g/kg), EG (1 g/kg), and AF plus EG (1 g/kg)]. Compared to the control, AF treatment significantly decreased body weight gain from week 2 onwards. AF treatment also caused significant decreases in serum total protein, albumin, total cholesterol, triglyceride, glucose, inorganic phosphorus, creatinine levels and alanine-aminotransferase (ALAT) activity but increased the aspartate-aminotransferase (ASAT) activity. Red blood cell, haematocrit, haemoglobin, thrombocyte, and lymphocyte counts and tibial crude ash levels were significantly reduced by AF treatment, while significant increases were seen in heterophil counts. The addition of EG (1 g/kg) to an AF-containing diet significantly improved the adverse effects of AF on haematological parameters, total protein, albumin values and ASAT activity. EG (1 g/kg) also partially improved body weight gains (59%) and the other biochemical parameters influenced by AF treatment. The addition of EG (both 0.5 and 1 g/kg) to the AF-free diet did not cause any considerable changes in the investigated values. These results clearly indicated that EG (1 g/kg) addition effectively diminished the adverse effects of AF on the investigated values. Also, the higher dietary concentration of EG (1 g/kg) was found more effective than the lower concentration (0.5 g/kg) against the adverse effects of AF on the variables investigated in this study.

Keywords: aflatoxin; esterified glucomannan; broiler; prevention

Published: January 31, 2005  Show citation

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Basmacioglu H, Oguz H, Ergul M, Col R, Birdane YO. Effect of dietary esterified glucomannan on performance, serum biochemistry and haematology in broilers exposed to aflatoxin. Czech J. Anim. Sci. 2005;50(1):31-39. doi: 10.17221/3992-CJAS.
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