EFFECTS OF TRYPTOPHAN, MELATONIN AND DARK PERIOD ON PERFORMANCE AND BLOOD PARAMETERS OF BROILER CHICKENS IN HEAT STRESS CONDITION

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JALILI KOLAVANI MARIA; MOHIT ARDESHIR; HASSANZADEH MOHAMMAD; MIRAALAMI NARIMAN; SHABAZI BENI RAZIEH

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Journal: Research On Animal Production Year:2016 | Volume:6 | Issue:12 Page(s): 70-78

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Title

EFFECTS OF TRYPTOPHAN, MELATONIN AND DARK PERIOD ON PERFORMANCE AND BLOOD PARAMETERS OF BROILER CHICKENS IN HEAT STRESS CONDITION

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Keywords

TRYPTOPHANQ2

HEAT STRESSQ1

BLOOD PARAMETERSQ1

MELATONINQ2

Abstract

A total of 130 Arian broiler chicks were used in this study in order to assess the effects ofTRYPTOPHAN, MELATONIN and dark regimes on the performance and BLOOD PARAMETERS of chickensexposed to HEAT STRESS. The chicks were allocated to the experimental units in an unbalancedcompletely randomized design. The treatments were control group, 40 mg of MELATONIN per kgof diet from 30-40 days of age and 0.04% of TRYPTOPHAN per kg of diet from 10-40 days of ageand dark period from 10-40 days of age. All treatments were daily exposed to HEAT STRESS(39±1C°) for 6 hours from 35-40 days of age. Minimal weight gain was achieved in the thirdweeks of age and the birds that received TRYPTOPHAN treatment have highest weight in fourthweeks of weights (P<0.05). The highest level of high density lipo-protein related to TRYPTOPHANand MELATONIN treatments at 40 days (P<0.05). The level of T3 in darkness treatment at 35 daysand TBARS level in darkenss and MELATONIN treatments were decreased (P<0.05). Results ofthis experiment showed that MELATONIN supplementation however of its usage after 30 days buthad better influence in performance and BLOOD PARAMETERS such as increased levels of highdensity lipoprotein protein and lower of thiobarbituric acid.

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APA: Copy

JALILI KOLAVANI, MARIA, MOHIT, ARDESHIR, HASSANZADEH, MOHAMMAD, MIRAALAMI, NARIMAN, & SHABAZI BENI, RAZIEH. (2016). EFFECTS OF TRYPTOPHAN, MELATONIN AND DARK PERIOD ON PERFORMANCE AND BLOOD PARAMETERS OF BROILER CHICKENS IN HEAT STRESS CONDITION. RESEARCH ON ANIMAL PRODUCTION, 6(12 ), 70-78. SID. https://sid.ir/paper/241399/en

Vancouver: Copy

JALILI KOLAVANI MARIA, MOHIT ARDESHIR, HASSANZADEH MOHAMMAD, MIRAALAMI NARIMAN, SHABAZI BENI RAZIEH. EFFECTS OF TRYPTOPHAN, MELATONIN AND DARK PERIOD ON PERFORMANCE AND BLOOD PARAMETERS OF BROILER CHICKENS IN HEAT STRESS CONDITION. RESEARCH ON ANIMAL PRODUCTION[Internet]. 2016;6(12 ):70-78. Available from: https://sid.ir/paper/241399/en

IEEE: Copy

MARIA JALILI KOLAVANI, ARDESHIR MOHIT, MOHAMMAD HASSANZADEH, NARIMAN MIRAALAMI, and RAZIEH SHABAZI BENI, “EFFECTS OF TRYPTOPHAN, MELATONIN AND DARK PERIOD ON PERFORMANCE AND BLOOD PARAMETERS OF BROILER CHICKENS IN HEAT STRESS CONDITION,” RESEARCH ON ANIMAL PRODUCTION, vol. 6, no. 12 , pp. 70–78, 2016, [Online]. Available: https://sid.ir/paper/241399/en

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