Effect of OcraTox on the performance and egg quality of laying hens exposed to ochratoxin A
Denli, Muzaffer (Department of Animal and Food Science)
Blandón Martínez, Juan Carlos (Department of Animal and Food Science)
Guynot, Maria Elena (Adiveter. Agro-Reus)
Salado, S. (Adiveter. Agro-Reus)
Pérez Hernández, José Francisco (Universitat Autònoma de Barcelona. Departament de Patologia i de Producció Animals)

Publicació:	Poultry Science Association, 2007
Resum:	An experiment was conducted to evaluate the efficacy of a new ochratoxin-binding agent (OcraTox, 5 g/kg of feed) in offsetting the toxic effects of ochratoxin A (OTA, 2 mg/kg of feed) in laying hen diets. Performance, serum biochemistry, OTA residue in the liver and eggs, and egg quality parameters were evaluated. Twenty-eight Hisex Brown laying hens, 47 wk of age, were allocated to 1 of 4 experimental treatments for 3 wk: control, OTA (containing 2 mg of OTA/kg of feed), OcraTox (containing 5 g of OcraTox/kg of feed), and OTA + OcraTox (containing 2 mg of OTA and 5 g of OcraTox/kg of feed). Laying hens fed OcraTox showed results similar to the control hens (P > 0. 05). The OTA diet significantly (P < 0. 05) reduced daily feed consumption, egg mass production, and serum triglyceride concentrations, and increased the relative liver weight, the serum activity of alkaline phosphatase, and the serum concentration of uric acid as compared with the control diet. Addition of OcraTox to the contaminated diet alleviated (P < 0. 05) the negative effects resulting from OTA, reaching values not significantly different from the control diet for most of the parameters except the relative weight of the liver. Birds fed the OTA treatment showed a greater content of OTA in the liver (15. 1 μg/kg) than those fed the control diet (kg). Supplementing the contaminated diet with OcraTox (OTA + OcraTox) reduced the values to 12. 0 μg/kg. Residues of OTA were not detected above our detection limit (0. 05 μg/kg) in any of the analyzed eggs. In conclusion, our results indicated that addition of OcraTox can counteract the deleterious effects caused by OTA in laying hens.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Ochratoxin A ; Laying hen ; Performance ; Egg quality ; Binding agent
Publicat a:	Poultry Science, ISSN 1525-3171

7 p, 5.1 MB

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