Steinhardt M, Bünger U, Grätsch U, Langanke M, Gollnast I
Institut für angewandte Tierhygiene, Eberswalde.
Tierarztl Prax. 1993 Feb;21(1):13-7.
Trace element analyses were performed on the livers of 52 and the heart muscle of 19 stillborn dairy calves. All calves originated from one herd and ranged in age from 260 days of gestation up to one day old. In the liver the trace element concentrations (mg/kg fresh weight) were as follows: Fe: 181.3 +/- 173.5; Zn: 74.6 +/- 37.7; Cu: 98.1 +/- 42.6; Mn: 1.4 +/- 0.36 and in the heart: Fe: 54.1 +/- 10.6; Zn: 16.3 +/- 3.8; Cu: 2.5 +/- 0.99; Mn: 0.42 +/- 0.07. Calves from heifers had lower Cu values. The relationship between trace element concentration and content and liver and heart weight is discussed, as are aspects of bioavailability and storage mechanisms as well as clinical signs of trace metal deficiencies.
对52头死产奶牛犊的肝脏和19头死产奶牛犊的心肌进行了微量元素分析。所有犊牛均来自同一牛群，胎龄从260天到出生1天不等。肝脏中微量元素浓度（毫克/千克鲜重）如下：铁：181.3±173.5；锌：74.6±37.7；铜：98.1±42.6；锰：1.4±0.36；心脏中：铁：54.1±10.6；锌：16.3±3.8；铜：2.5±0.99；锰：0.42±0.07。来自小母牛的犊牛铜值较低。讨论了微量元素浓度与含量以及肝脏和心脏重量之间的关系，以及生物利用度和储存机制方面以及微量金属缺乏的临床症状。
