[雄性育肥牛贫血的研究。1. 参考条件及贫血发生率]
[Investigations of anemia of male rearing calves. 1. Reference conditions and anemia frequency].
作者信息
Bünger U, Pongé J, Kleiner W, Kaphengst P, Fiebig U, Motsch T, Steinhardt M, Furcht G, Schmoldt P
出版信息
Arch Tierernahr. 1979 Nov;29(11):703-20. doi: 10.1080/17450397909424297.
In a longitudinal investigation (3 points of time n = 214, 206 resp. 202) the hemoglobin quota (Hb), the hematocrit (Hct) resp. the average corpuscular hemoglobin concentration (MCHC) were analysed at male calves receiving semi-liquid feed in the transitional period from pre-ruminal to ruminal digestion (56d). Breed, live weight development, consumption of milk, concentrated feed resp. dried forage, diseases of the calves as well as the father and the milk yield resp. the lactation age of the mother were registered as reference conditions. The percentage of calves with an Hb less than 10.5 g/dl was at the three points of time 50.00%, 86.41% resp. 41.58%, of calves with an Hct less than 33,5% it was 43.46%, 66.02% resp. 31.68% and of calves with an MCHC less than 30.5 g Hg/dl erythrocytes 51.87%, 76,21 resp. 47,03%. 21.50%, 33.50% resp. 4.46% of all test animals even had an Hb of less than 8.5 g/dl.
在一项纵向调查中（三个时间点，分别为n = 214、206和202），对处于从瘤前消化向瘤胃消化过渡期（56天）的雄性犊牛的血红蛋白含量（Hb）、血细胞比容（Hct）以及平均红细胞血红蛋白浓度（MCHC）进行了分析。记录了品种、体重增长、牛奶、浓缩饲料以及干饲料的消耗量、犊牛疾病以及父亲的情况和母亲的产奶量及泌乳年龄等作为参考条件。在三个时间点，Hb低于10.5 g/dl的犊牛百分比分别为50.00%、86.41%和41.58%；Hct低于33.5%的犊牛百分比分别为43.46%、66.02%和31.68%；MCHC低于30.5 g Hg/dl红细胞的犊牛百分比分别为51.87%、76.21%和47.03%。所有试验动物中分别有21.50%、33.50%和4.46%的Hb低于8.5 g/dl。
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