Bünger U, Pongé J, Schmoldt P
Arch Tierernahr. 1984 Apr;34(4):271-85. doi: 10.1080/17450398409426943.
The influence of oral and intramuscular ferridextrane intervention on the calves' absolute and relative consumption of skim milk, rearing feed for calves and lucerne hay in the 1st, 4th and 8th week of their stay in the weaning range of the rearing farm was investigated. The effect of iron substitution was dependent on the duration of keeping and of the experiment and, under conditions of the drinking regime given, manifested itself both in the development of the absolute and in the development of the relative skim milk intake, but not in that of dry feed consumption. The causes and consequences of the time dependence of the influence of iron intervention on feed consumption are discussed. In the 8th week of keeping the nutrient intake of the orally substituted group was between 8.0 and 9.0% higher than that of the control animals. With the drinking regime used, which led to a relatively quick development of dry feed consumption, differences between the test groups with regard to the consumption of concentrated feed and hay as well as the relative energy and protein quota from the fluid feed in relation to the complete energy and protein intake of the 8th week of keeping could not be proved. Based on these criteria, iron intervention was without influence on the stage of development of the ruminal digestion of the rearing calves reached at the end of the 56-day experiment. With a drinking regime which results in a relatively slow development of dry feed consumption, such an effect is certainly probable.
研究了口服和肌肉注射铁葡聚糖对犊牛在饲养场断奶期第1周、第4周和第8周脱脂牛奶、犊牛育成饲料和苜蓿干草的绝对和相对消耗量的影响。铁替代的效果取决于饲养和实验的持续时间，在给定的饮水方案条件下，它在脱脂牛奶绝对摄入量的发展和相对摄入量的发展中均有体现，但在干饲料消耗方面则没有体现。本文讨论了铁干预对饲料消耗影响的时间依赖性的原因和后果。在饲养的第8周，口服替代组的营养摄入量比对照动物高8.0%至9.0%。在所采用的饮水方案导致干饲料消耗相对较快发展的情况下，未能证明试验组在浓缩饲料和干草消耗量以及第8周饲养期流体饲料中相对能量和蛋白质配额与完整能量和蛋白质摄入量方面存在差异。基于这些标准，在为期56天的实验结束时，铁干预对育成犊牛瘤胃消化发育阶段没有影响。对于导致干饲料消耗相对缓慢发展的饮水方案，这种影响肯定是可能的。
