INFLUENCES OF EARLY HEAT SHOCK AND SUPPLEMENTAL VITAMIN C AND E ON THE PERFORMANCE OF BROILER CHICKS EXPOSED TO ACUTE HEAT STRESS

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ROUSHANI E.; TAHMASBI A.M.; TAGHIZADEH A.; VALIZADEH M.

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Journal: JOURNAL OF AGRICULTURAL KNOWLEDGE Year:2006 | Volume:16 | Issue:1 Page(s): 255-264

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Title

INFLUENCES OF EARLY HEAT SHOCK AND SUPPLEMENTAL VITAMIN C AND E ON THE PERFORMANCE OF BROILER CHICKS EXPOSED TO ACUTE HEAT STRESS

Author(s)

ROUSHANI E. | TAHMASBI A.M. | TAGHIZADEH A. | VALIZADEH M. | Issue Writer Certificate

Keywords

BROILERQ2

EARLY HEAT SHOCKQ3

HEAT STRESSQ3

PERFORMANCEQ3

VITAMIN CQ3

VITAMIN EQ3

Abstract

In order to evaluate the effect of EARLY HEAT SHOCK and VITAMIN C and E to alleviate negative effects of HEAT STRESS in BROILERs, 576 one day old Ross strain chicks were used. Initially, chicks were randomly distributed among two equal groups. At the fifth day of age, one group was exposed to EARLY HEAT SHOCK (EHS) for 48 h (36±1°C).After that, all birds were reared under normal condition up to 35days of age. At day 35, birds of each group were assigned to one of vitamin supplemented diets as follows: VITAMIN C (250 mg ascorbic acid/kg), VITAMIN E (250 mg α-tocopherol acetate/kg) and combination of VITAMIN C and E (250 mg form each vitamin/kg). Birds received vitamin, supplement diets up to end of the experiment. During the last two weeks (weeks 6 and 7) of the experiment, birds were exposed to acute HEAT STRESS of 6h a day (30±1°C). Supplementation of diets with vitamin, especially VITAMIN C, during last two weeks of experiment under acute HEAT STRESS, significantly (P<0.01) improved feed consumption, daily weight gain (P<0.05) and breast muscle (P<0.05) Nevertheless, only feed intake was affected (P<0.05) by VITAMIN E supplementation. The results obtained from this experiment indicated that using EARLY HEAT SHOCK during fifth-sixth day of age and, in addition, fortifying diets with VITAMIN C, or combined with VITAMIN E, improves BROILER PERFORMANCE under acute HEAT STRESS.

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APA: Copy

ROUSHANI, E., TAHMASBI, A.M., TAGHIZADEH, A., & VALIZADEH, M.. (2006). INFLUENCES OF EARLY HEAT SHOCK AND SUPPLEMENTAL VITAMIN C AND E ON THE PERFORMANCE OF BROILER CHICKS EXPOSED TO ACUTE HEAT STRESS. JOURNAL OF AGRICULTURAL KNOWLEDGE, 16(1), 255-264. SID. https://sid.ir/paper/28894/en

Vancouver: Copy

ROUSHANI E., TAHMASBI A.M., TAGHIZADEH A., VALIZADEH M.. INFLUENCES OF EARLY HEAT SHOCK AND SUPPLEMENTAL VITAMIN C AND E ON THE PERFORMANCE OF BROILER CHICKS EXPOSED TO ACUTE HEAT STRESS. JOURNAL OF AGRICULTURAL KNOWLEDGE[Internet]. 2006;16(1):255-264. Available from: https://sid.ir/paper/28894/en

IEEE: Copy

E. ROUSHANI, A.M. TAHMASBI, A. TAGHIZADEH, and M. VALIZADEH, “INFLUENCES OF EARLY HEAT SHOCK AND SUPPLEMENTAL VITAMIN C AND E ON THE PERFORMANCE OF BROILER CHICKS EXPOSED TO ACUTE HEAT STRESS,” JOURNAL OF AGRICULTURAL KNOWLEDGE, vol. 16, no. 1, pp. 255–264, 2006, [Online]. Available: https://sid.ir/paper/28894/en

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