Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/50042
Title: Short communication: Fractional milking distribution of immunoglobulin G and other constituents in colostrum
Authors: Vetter, A.
Argüello, A. 
Baumrucker, C.
Bruckmaier, R. M.
Keywords: Dairy-Cows
Passive Transfer
1St Milking
Removal
Oxytocin, et al
Issue Date: 2013
Publisher: 0022-0302
Journal: Journal of Dairy Science 
Abstract: The provision of quality colostrum with a high concentration of immunoglobulins is critical for newborn calf health. Because first colostrum may be low in overall concentration to effectively reduce the risk of newborn infections, we tested equivalent milking fractions of colostrum for possible IgG differences. The objective of this study was to determine if the fractional composition of colostrum changes during the course of milking with a focus on immunoglobulins. Twenty-four Holstein and Simmental cows were milked (first colostrum) within 4 h after calving. The colostrum of 1 gland per animal was assembled into 4 percentage fractions over the course of milking: 0 to 25%, 25 to 50%, 50 to 75%, and 75 to 100%. The IgG concentration among the various fractions did not change in any significant pattern. Concentration of protein, casein, lactose and somatic cell count remained the same or exhibited only minor changes during the course of fractional milking colostrum. We determined that no benefit exists in feeding any particular fraction of colostrum to the newborn.
URI: http://hdl.handle.net/10553/50042
ISSN: 0022-0302
DOI: 10.3168/jds.2013-6745
Source: Journal of Dairy Science[ISSN 0022-0302],v. 96, p. 5919-5922
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