Ghorbani, Adel (2015) Effect of methionine different levels on performance, immune system and gastrointestinal microbial population of Japanese quail under aflatoxicosis. Masters thesis, University of Zabol.
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Abstract
In this research, the detoxification effects of methionine (MET) on performance, immunity, and microbial population of Japanese quails fed afflation B1 (AFB1) were studied. Nine experimental diets with 3 levels of MET (i.e., 0.5, 0.6 and 0.7% of diet) and 3 levels of AFB1 (i.e., 0, 2.5, and 5 mg/kg) in a completely randomized design and 3 × 3 factorial arrangement were fed to 360 quail chicks from 7 to 35 days of age. Dietary treatments significantly affected quail performance so that the highest feed intake was observed in birds received 0.7% MET without AFB1 and lowest feed intake was observed in birds received 5 mg AFB1 per kg and 0.5% MET (P < 0.05). The birds received 5 mg AFB1 per kg and 0.5% MET showed the lowest G (P < 0.05) and the lowest feed conversion ratio was attributed to the birds received 0.6% MET (P < 0.05). The birds fed 5 mg AFB1 per kg and 0.5% MET had the lowest live weight and highest relative Gizzard (P > 0.05) and the highest relative weight of liver (P >0.05). The highest antibody production against sheep red blood cell antigen was observed in birds receiving 0.7% MET without AFB1 (P < 0.05), and the lowest skin thickness response to DNCB challenge was attributed to the birds fed 0.5% MET and 2.5 mg AFB1 per kg (P > 0.05). The birds fed 0.7% MET without AFB1 had the highest lactic acid bacteria population while the lowest lactic acid bacteria population was observed in birds received 0.5% MET with 5 mg AFB1 per kg (P < 0.05). The highest E.coli population was observed in birds fed 0.7% MET without AFB1 (P < 0.05).
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Japanese quail, Methionine, Immune system, Microflora, Aflatoxicosis |
| Subjects: | S Agriculture > SF Animal culture |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 23 May 2016 07:49 |
| Last Modified: | 23 May 2016 07:49 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/634 |
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