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Veterinary Research Forum، جلد ۸، شماره ۳، صفحات ۲۵۹-۲۶۴
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عنوان انگلیسی Effects of supplemental chromium picolinate and chromium nanoparticles on performance and antibody titers of infectious bronchitis and avian influenza of broiler chickens under heat stress condition
چکیده انگلیسی مقاله This experiment was carried out to investigate the effects of different levels chromium picolinate (CrPic) and chromium nanoparticles (nano-Cr) on the performance and immune function of broilers under heat stress condition. A total of 320 Ross 308 broiler chicks (from 21 to 42 days) were assigned randomly into eight treatment groups (four replicates per treatment, and 10 chicks per replicate) and be reared at either thermoneutral (21 ˚C) or heat stress (36 ◦C). The treatments were control (T1) group without supplementation and heat stress, T2 as a heat stress group without supplementation, T3, T4 and T5 groups which were supplemented with 500, 1000 and 1500 ppb CrPic in diet with heat stress, respectively and T6, T7 and T8 groups which were supplemented with 500, 1000 and 1500 ppb nano-chromium in diet under heat stress, respectively. Supplementation of chromium and nano-chromium improved performance including weight gain and feed conversion ratio of heat-stressed chickens. Antibody titers against avian influenza (AI) and infectious bronchitis (IB) at 21 to 42 days of age in broilers fed supplemental chromium and nano-chromium were higher than broiler chickens fed control diet (p < 0.05). Nano-chromium supplementation at level of 1000 ppb and CrPic at level of 1500 ppb improved the antibody titers against AI and IB of broilers under heat stress conditions. It can be concluded from these findings that dietary supplementation of CrPic and nano-Cr can improve performance and antibody titers against AI and IB under heat stress conditions in broilers.
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نویسندگان مقاله فرهاد حاجی علیزاده |
graduate student, college of veterinary medicine, urmia branch, islamic azad university, urmia, iran
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

حسن قهری |
department of animal science, college of veterinary medicine, urmia branch, islamic azad university, urmia, iran
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

علیرضا طالبی |
department of poultry health and diseases, faculty of veterinary medicine, urmia university, urmia, iran
سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)

نشانی اینترنتی http://vrf.iranjournals.ir/article_27376_4a97179230f28e4efca6df780fd49cb0.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/544/article-544-429415.pdf
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زبان مقاله منتشر شده en
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