An epidemiological study of factors affecting serum IgG levels in dairy calves.

Nordisk veterinaermedicin Pub Date : 1985-05-01

K Norheim, E Simensen

引用次数: 0

Abstract

Serum IgG was used to evaluate the immune status of calves up to 180 days of age in 300 Norwegian dairy herds. Several factors were found to significantly affect the levels. Among these were geographical district, season, and factors related to housing and feeding.

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奶牛血清IgG水平影响因素的流行病学研究。

采用血清IgG测定了300头挪威奶牛群180日龄以下犊牛的免疫状况。研究发现，有几个因素会显著影响这一水平。其中包括地理区域、季节和与住房和喂养有关的因素。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Nordisk veterinaermedicin

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