EFFECT OF DIFFERENT LEVELS OF FEED RESTRICTION ON HUMORAL IMMUNITY RESPONSE AND GROWTH OF BROILERS UNDER HEAT STRESS CONDITION

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MOROVAT M.; SALARMOINI M.; DADVAR P.

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Journal: SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL Year:2012 | Volume:7 | Issue:4 (33) Page(s): 46-52

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Title

EFFECT OF DIFFERENT LEVELS OF FEED RESTRICTION ON HUMORAL IMMUNITY RESPONSE AND GROWTH OF BROILERS UNDER HEAT STRESS CONDITION

Author(s)

MOROVAT M. | SALARMOINI M. | DADVAR P. | Issue Writer Certificate

Keywords

HEAT STRESSQ2

FEED RESTRICTIONQ3

INFECTIOUS BURSAL DISEASEQ2

ANTIBODY TITRE AND PERFORMANCEQ2

Abstract

An experiment was conducted to investigate the effects of different levels of FEED RESTRICTION on immunological response and performance of broilers under HEAT STRESS condition. A total number of 240 cockerels from Ross commercial strain (308) were used as a completely randomized design. Chickens were kept under HEAT STRESS (35±2 DC) for 4 hours a day (from 12 to 16 pm) from 7 to 21 days of age. Treatments were different levels of FEED RESTRICTION (70, 80 and 90 percent of control birds) from 7 to 14 days of age and 80 and 90 percent of control birds from 7 to 21 days of age. According to results at 42 days of age no significant differences were observed for relative weights of bursa and spleen to body weights and also for antibody titers against INFECTIOUS BURSAL DISEASE (IBD) vaccine between control group birds and birds under different levels of FEED RESTRICTION. Also at 42 days of age no differences among treatments were found for daily feed intake, daily weight gain and feed conversion, but for 7 to 21 days of age they were lower in feed restricted birds. According to these results, FEED RESTRICTION under HEAT STRESS conditions for longer periods has less effect on antibody titre of IBD than high severity FEED RESTRICTION. Also, FEED RESTRICTION till 21 days of age did not have any harmful effect on broiler performance under HEAT STRESS conditions.

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APA: Copy

MOROVAT, M., SALARMOINI, M., & DADVAR, P.. (2012). EFFECT OF DIFFERENT LEVELS OF FEED RESTRICTION ON HUMORAL IMMUNITY RESPONSE AND GROWTH OF BROILERS UNDER HEAT STRESS CONDITION. SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL, 7(4 (33)), 46-52. SID. https://sid.ir/paper/97183/en

Vancouver: Copy

MOROVAT M., SALARMOINI M., DADVAR P.. EFFECT OF DIFFERENT LEVELS OF FEED RESTRICTION ON HUMORAL IMMUNITY RESPONSE AND GROWTH OF BROILERS UNDER HEAT STRESS CONDITION. SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL[Internet]. 2012;7(4 (33)):46-52. Available from: https://sid.ir/paper/97183/en

IEEE: Copy

M. MOROVAT, M. SALARMOINI, and P. DADVAR, “EFFECT OF DIFFERENT LEVELS OF FEED RESTRICTION ON HUMORAL IMMUNITY RESPONSE AND GROWTH OF BROILERS UNDER HEAT STRESS CONDITION,” SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL, vol. 7, no. 4 (33), pp. 46–52, 2012, [Online]. Available: https://sid.ir/paper/97183/en

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