نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه تغذیه دام و طیور، دانشکده علوم دامی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران
2 گروه تغذیه دام طیور، دانشکده علوم دامی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
T40 pregnant Afshari ewes from 42 ± 2 days before the expected parturition in a completely randomized design. Experimental treatments include control, containing 3 mg of chromium in mineral , containing 3 mg of chromium in the form of chromium-methionine and contained 3 mg of chromium in the form of chromium nanoparticles per kilogram of dry matter. The results showed that the addition of different forms of chromium to the ewes' diet caused a significant increase in the concentration of red blood cells, hemoglobin and blood hematocrit compared to the control group . Adding different forms of chromium to the diet of ewes caused a significant decrease in white blood cells). In experimental treatments, no significant difference was observed in terms of platelets, average volume of red blood cells, average concentration of red blood cells, neutrophils, lymphocytes, monocytes, and eosinophils. The concentration of superoxide desmutase, glutathione peroxidase, catalase, triiodothyronine and tetraiodothyronine in the blood in the treatments receiving different forms of chromium also increased compared to the control group . The results showed that the concentration of malondialdehyde and total antioxidant capacity in ewes and lambs receiving chromium supplementation was lower than the control treatment . The concentration of IgG and IgM in lambs receiving different forms of chromium also increased compared to the control group). In general, it is recommended to receive chromium, especially in the form of chromium-methionine and chromium nanoparticles during the period of transfer of ewes under the influence of heat stress.
کلیدواژه‌ها [English]
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