کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2462749 1555091 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of two-stage weaning with subsequent transport on body weight, plasma lipid peroxidation, plasma selenium, and on leukocyte glutathione peroxidase and glutathione reductase activity in beef calves
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Influence of two-stage weaning with subsequent transport on body weight, plasma lipid peroxidation, plasma selenium, and on leukocyte glutathione peroxidase and glutathione reductase activity in beef calves
چکیده انگلیسی

An experiment was conducted to assess the effects of two-stage weaning and subsequent transport on oxidative stress markers in calves. Thirty-six crossbred Angus steers (243 ± 20.8 kg; 221 ± 19.7 days) were allotted to control, fenceline (FL), and nose-clip (NC) weaning groups. Steers were weighed and blood samples were collected on days −7, 0 (pre-transit) and 7 surrounding transport. Leukocytes were analyzed for glutathione peroxidase and glutathione reductase activity, whereas malondialdehyde and Se were measured in plasma. Data were analyzed using PROC MIXED with the Tukey–Kramer adjustment applied post hoc. No treatment effects were detected for blood variables or weights. Glutathione peroxidase activity was not altered by time (P = 0.27). Glutathione reductase activity, Se, and malondialdehyde declined (P < 0.001) from day −7 to 7 in all steers. Treatment × date interaction was detected for malondialdehyde (P < 0.02). Control and FL steers gained weight (P < 0.03), whereas NC steers did not gain weight between days −7 and 0 (P = 0.81). All weaning treatment groups gained weight between days 0 and 7 (P < 0.05). Results suggest that two-stage weaning has little effect on examined markers of oxidative stress.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Veterinary Immunology and Immunopathology - Volume 127, Issues 3–4, 15 February 2009, Pages 365–370
نویسندگان
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