Effect of modified clinoptilolite to counteract the effects of OTA on egg production

EFFECT OF MODIFIED CLINOPTILOLITE TO COUNTERACT THE DELETERIOUS EFFECTS OF OCHRATOXIN A ON EGG PRODUCTION AND QUALITY

Vasiljević M1, Milićević D2, Pleadin J3, Tolimir N4, Trailović S5, Resanović R6 and Trailović JN7 Faculty of Veterinary Medicine, University of Belgrade, Serbia.

2 Institute of Meat Hygiene and Technology, Serbia.

3 Croatian Veterinary Institute, Laboratory for Analytical Chemistry, Zagreb, Croatia.

4 Institute for Science Application in Agriculture, Serbia.

5 Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Belgrade, Serbia.

6 Department of Equine, small animal, poultry and wild animal diseases, Faculty of Veterinary Medicine, University of Belgrade, Serbia.

7 Department of Animal Nutrition and Botany, Facultyof Veterinary Medicine, University of Belgrade, Serbia.

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Vasiljević, M, et al. “Effect of Modified Clinoptilolite to Counteract the Deleterious Effects of Ochratoxin A on Egg Production and Quality.” Brazilian Journal of Poultry Science, vol. 24, no. 3, 2022, https://doi. org/10.1590/1806-9061-2021-1495.

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OBJECTIVE The objective of this study was to evaluate the efficacy of modified clinoptilolite as a mycotoxin adsorbent in preventing the negative effects of ochratoxin A (OTA) on egg production and egg quality of laying hens exposed to this mycotoxin.

MATERIALS & METHODS 48 laying hens (27 weeks old) were used in this study. The hens were randomly divided into six groups and were fed for 7 weeks with the following combinations:

E-I group: standard diet + 1 mg/kg OTA

E-II group: standard diet + 0.25 mg/kg OTA E-III group: standard diet + 1mg/ kg OTA + 0.2% of Minazel Plus® E-IV group: standard diet + 0.25 mg/ kg OTA + 0.2% of Minazel Plus® E-V group: standard diet + 0.2% Minazel Plus® Control group: standard diet

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RESULTS This study showed that laying hens fed with 1 mg/kg of OTA (E-I), had a significant decrease (p<0.05) of all performance parameters during the trial, while the group fed with 0.25 mg/kg OTA showed no adverse effects on egg production and egg quality.

The addition of modified clinoptilolite (0.2%) to the diet containing the OTA, minimized its effects bringing values not significantly different from the control diet for most of the parameters.

These findings clearly indicate the protective potential of modified clinoptilolite against the toxic effects of OTA in laying hens.

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