Lindt F, Blum J W
Division of Nutrition Pathology, University of Berne, Switzerland.
Zentralbl Veterinarmed A. 1994 Apr;41(3):237-46. doi: 10.1111/j.1439-0442.1994.tb00090.x.
Occurrence of iron (Fe) deficiency anaemia was investigated in 33 farms in 443 veal calves (group VC; 83% males and 17% females) fed whole, defatted or butter milk or milk powder without or with supplements and in 72 age- and weight-matched bull calves (group BC) fed roughage, concentrates with mineral and vitamin supplements. In group VC plasma Fe concentration was much more frequently decreased and total iron binding capacity was much more frequently increased than in group BC. In group VC haemoglobin concentration (Hb), packed cell volume (PCV) and red blood cell number (RBC) in 18, 23 and 3%, respectively, of calves were below--2SD of the mean of reference values (Hb: 105 +/- 14 g/l, PCV: 0.28 +/- 0.04 l/l, RBC: 8.2 +/- 1.0 T/l [means +/- 2 SD]), shown in another study to remain stable throughout the growth period when veal calves were fed 52 mg Fe/kg milk replacer. In contrast, in calves of group RC only 3% of Hb values, 3% of PCV and 1% of RBC were below reference values. Fe deficiency anaemia is therefore a rather frequent problem in veal calves, but not in young bulls, fed roughage, concentrates and mineral/vitamin supplements.
对33个农场的443头犊牛（VC组；83%为雄性，17%为雌性）进行了缺铁性贫血的调查，这些犊牛饲喂全脂、脱脂或黄油牛奶或奶粉，有无添加物，同时对72头年龄和体重匹配的公牛犊（BC组）进行了调查，这些公牛犊饲喂粗饲料、添加矿物质和维生素补充剂的精饲料。与BC组相比，VC组血浆铁浓度更频繁地降低，总铁结合力更频繁地升高。在VC组中，分别有18%、23%和3%的犊牛血红蛋白浓度（Hb）、红细胞压积（PCV）和红细胞数量（RBC）低于参考值均值的-2SD（Hb：105±14g/l，PCV：0.28±0.04l/l，RBC：8.2±1.0T/l[均值±2SD]），另一项研究表明，当犊牛饲喂52mg铁/千克代乳粉时，在整个生长期间这些值保持稳定。相比之下，在RC组犊牛中，只有3%的Hb值、3%的PCV和1%的RBC低于参考值。因此，缺铁性贫血在饲喂粗饲料、精饲料和矿物质/维生素补充剂的犊牛中是一个相当常见的问题，但在年轻公牛中并非如此。
