Zbornik Matice srpske za prirodne nauke 2017 Issue 133, Pages: 13-22
https://doi.org/10.2298/ZMSPN1733013D
Full text ( 256 KB)
Effect of activated clinoptilolite in aflatoxin B1 contaminated laying hen diets on aflatoxin B1 residues and quality of eggs
Demir Ergün E. (Balikesir University, Veterinary Faculty, Çağış Kampüsü Altıeylül, Balıkesir, Republic of Turky)
Eseceli Hüseyin H. (Bandirma Onyedi Eylul University, Bandirma Vocational School, Bandirma, Republic of Turkey)
Özcan Akif M. (Abant Izzet Baysal University, Vocational School of Sureyya Astarci, Bolu, Republic of Turkey)
This study was carried out to determine the effect of a high level of
aflatoxin B1 in laying hen diets, supplemented with deactivated and
activated clinoptilolite, on inner and outer quality and aflatoxin B1
residues in eggs. Two experimental groups were formed and fed high aflatoxin
B1 diets (965 ppb) containing deactivated and activated (450 °C for 60
minutes) clinoptilolite (2% of diet) for 49 days. In the experiment, a total
of 960 55-week-old Lohmann LSL (white) laying hens were used. Each group had
8 replicates and 480 hens. Egg weight, inner and outer egg quality
parameters and egg aflatoxin B1 levels were determined in a total of 90 eggs
collected on the 15th, 30th and 49th days of the experiment. Diets
containing deactivated or activated clinoptilolite decreased aflatoxin B1
production in laying hen diets after incubation period of 15 days.
Activation of clinoptilolite by heat treatment significantly reduced
aflatoxin B1 level in eggs (p<0.05). In addition, the use of clinoptilolite
as an antifungal agent in the presence of high aflatoxin B1level in layer
hen diets significantly increased the weight of eggs and significantly
reduced the ratio of broken-cracked and dirty eggs (p<0.05). Chicken blood
albumin, creatinine and calcium levels were higher in hens fed diet
containing activated clinoptilolite (p<0.05). However, triglyceride and VLDL
levels decreased significantly in the blood of these animals (p <0.05). In
conclusion, the supplementation of hen diets containing high aflatoxin B1
with activated clinoptilolite improves production performance, egg quality
and decreases aflatoxin B1 residue in the egg.
Keywords: аflatoxin B1, clinoptilolite, egg, laying hens