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- Title
AZ AFLATOXIN-B1 MIKROBIÁLIS DETOXIFIKÁCIÓJÁNAK HATÁSA BROJLERCSIRKÉK EGYES TERMELÉSI TULAJDONSÁGAIRA ÉS HÚSMINŐSÉGÉRE.
- Authors
MÁRTA, ERDÉLYI; ROXÁNA, KULCSÁR; MÁTYÁS, CSERHÁTI; ZSOLT, ANCSIN; ISTVÁN, SZABÓ; BALÁZS, KRISZT; JÓZSEF, KUKOLYA; MIKLÓS, MÉZES
- Abstract
Aflatoxins are the most toxic mycotoxins that have detrimental effects on farm animals’ production traits and health status. Poultry species are extremely susceptible to the effects of aflatoxins; therefore, the purpose of the present study was to investigate the effect of artificially aflatoxin contaminated (100 µg AFB1 /kg feed) and microbiologically detoxified corn on some production traits and meat quality parameters of broiler chickens during the rearing period (26-47 days of age). A new method of microbiological detoxification was applied which was done with solid-phase fermentation using an aflatoxin-degrading Rhodococcus pyridinivorans AK37 strain. As a result of fermentation, the aflatoxin content of the feed has dropped below the detection limit. During the trial period no mortality or symptoms of aflatoxin toxicosis were recorded in the experimental groups. There were no significant differences among the experimental groups in the production traits, such as body weight, body weight gain, and feed intake. However, in the last week of the trial (days 40 and 47) relative liver weight was significantly higher in the group fed with AFB1 contaminated feed than in the control and microbiologically detoxified feed groups. It suggests that microbial detoxification could effectively prevent the liver damage caused by aflatoxins. At the same time, the relative weight of breast was the same in all three experimental groups. Considering the meat quality parameters the average pH wasnearly the same in all three groups. There were no significant differences in meat colour measured by reflectance spectrometry method and evaluated by the CIELab system. According to the results of the study it can be concluded that AFB1 did not cause significant changes in the production traits and meat quality parameters of broiler chicken even at the five-fold dose of the EU regulatory limit value, when it is applied in the grower and finisher period (after 26 days of age). However, the increased relative liver weight might be the indication of its toxic effect, which was successfully eliminated by the microbial detoxification.
- Publication
Animal Breeding & Feeding / Állattenyésztés és Takarmányozás, 2023, Vol 72, Issue 4, p297
- ISSN
0230-1814
- Publication type
Article