Evaluation of on-farm tools for colostrum quality measurement
Evaluation of on-farm tools for colostrum quality measurement
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DOI：
10.3168/jds.2014-8415
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发表时间：
2015-03-01
影响因子：
3.5
通讯作者：
Doepel, L.
中科院分区：
文献类型：
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作者：
Bartier, A. L.;Windeyer, M. C.;Doepel, L.
本研究的目的是测定艾伯塔省奶牛场初乳中免疫球蛋白G （IgG）的含量，并确定哪种农场工具（初乳计或Brix折射计）与径向免疫扩散（RID）测定的IgG含量相关性更高。初乳样本（n = 569）于2012年2月至7月期间从艾伯塔省中部的13个商业奶牛场收集，奶牛群规模从60头到300头不等。免疫球蛋白G含量直接用RID法测定，间接用比体计（比重）和Brix折光计（总固体）测定。斯皮尔曼相关用于结肠计和布里克斯折光计的数据。根据RID分析，29.1%的初乳样品中含有
The objectives of this study were to determine the immunoglobulin G (IgG) content of colostrum on Alberta dairy farms and to determine which on-farm tool, the colostrometer or the Brix refractometer, was more highly correlated with IgG content as determined by radial immunodiffusion (RID). Colostrum samples (n = 569) were collected between February and July 2012 from 13 commercial dairy farms in central Alberta, with herds ranging in size from 60 to 300 lactating cows. Immunoglobulin G content was determined directly by RID and indirectly by a colostrometer (specific gravity) and Brix refractometer (total solids). The Spearman correlation was used for the colostrometer and Brix refractometer data. According to RID analysis, 29.1% of the colostrum samples contained