Passive Immunoglobin Transfer in Newborn Calves Fed Colostrum or Spray-Dried Serum Protein Alone or as a Supplement to Colostrum of Varying Quality
نویسندگان
چکیده
منابع مشابه
Passive immunoglobin transfer in newborn calves fed colostrum or spray-dried serum protein alone or as a supplement to colostrum of varying quality.
Two experiments were conducted to investigate the effect of serum-derived immunoglobin (Ig) source and the effect of colostrum supplementation with serum-derived Ig on the attainment of passive immunity in newborn colostrum-deprived calves. In experiment 1, colostrum-deprived Holstein bull calves were fed pooled colostrum (PC, n = 9), spray-dried bovine serum (BS, n = 11), or spray- dried porci...
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The effects of the addition of nonimmunoglobulin protein on absorption of immunoglobulin G (IgG) from colostrum or colostrum supplement products were determined in two experiments. In experiment 1, 48 Holstein calves were fed 4 L of pooled maternal colostrum or 4 L of reconstituted colostrum supplement with 0, 200, or 400 g of added whey protein concentrate or casein. In experiment 2, 38 Jersey...
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Newborn Holstein bull calves (n = 32) were assigned to receive a colostrum supplement (CS) containing defibrinated bovine plasma or a colostrum replacer (CR) containing an immunoglobulin concentrate obtained by concentrating the immunoglobulin (Ig)G fraction of bovine plasma. The CS and CR contained 11.1 and 21.2% of dry matter as IgG, respectively. Each animal was fed two 454-g feedings at 1 a...
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Basic nutrients, minerals, total protein and its fractions in colostrum from cows fed feed supplemented with yeast metabolites (60 g/d/animal) in perinatal period, as well as the level of immunoglobulins in calves’ blood serum on the 2 and 35 d of their life were determined. Additionally, the total immunoglobulin index in calves aged 3-4 weeks was calculated. It was demonstrated that feed with ...
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A study was conducted to compare neutrophil and monocyte activation in neonatal dairy calves fed fresh or frozen colostrum. Fifteen male Holstein calves were fed either refrigerator-stored, non-maternal colostrum or frozen, non-maternal colostrum. Blood samples were collected at days 2 and 21 of life to determine phagocytic cell function using flow cytometry. Serum immunoglobulin concentration ...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2000
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(00)75183-6