کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8981280 | 1108149 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evaluation of Quality, Quantity, and Timing of Colostrum Feeding on Immunoglobulin G1 Absorption in Jersey Calves*
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
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چکیده انگلیسی
Twenty-four Jersey calves were randomly assigned to 1 of 4 treatment groups (6 calves per group). Pooled colostrum from first milkings (colostrum high in IgG1, 84Â mg/mL) of multiparous cows was fed to treatment groups 1 and 2. Pooled colostrums from second and third milkings (colostrum low in IgG1, 31.2Â mg/mL) of multiparous Jersey cows were fed to calves in treatment groups 3 and 4. The quality and timing of colostrum feeding was as follows: group 1 were fed (high IgG1 colostrum) 4Â L at 0Â h (birth); group 2 calves were fed (high IgG1 colostrum) 2Â L at 0Â h (birth) and 2Â L at 12Â h; group 3 calves were fed (low IgG1 colostrum) 4Â L at 0Â h (birth); and group 4 calves were fed (low IgG1 colostrum) 2Â L at 0Â h (birth) and 2Â L at 12Â h. Mean serum IgG1 was 38.66, 45.66, 13.81 and 9.95Â mg/mL in groups 1 to 4, respectively. At 48Â h of age, calves fed colostrum with higher concentrations of total ingested IgG1 (groups 1 and 2) had significantly higher serum protein and IgG1 concentrations than calves fed low IgG1 colostrum at 48Â h of age (groups 3 and 4). Mean apparent efficiency of IgG1 absorption was measured at 48Â h; calves (group 2) receiving 2Â L at birth and 2Â L at 12Â h of high IgG1 colostrum had higher mean apparent efficiency of IgG1 absorption than calves (group 4) fed 2Â L of colostrum that was low in IgG1 at birth and 12Â h (31.2 and 18.2% in groups 2 and 4, respectively). Results suggest that Jersey calves should receive 2 separate feedings of high quality colostrum to maximize the colostral IgG1 absorption.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Dairy Science - Volume 88, Issue 1, January 2005, Pages 296-302
Journal: Journal of Dairy Science - Volume 88, Issue 1, January 2005, Pages 296-302
نویسندگان
E.H. Jaster,