Kamber R, Farah Z, Rüsch P, Hässig M
Klinik für Geburtshilfe, Jungtier- und Euterkrankheiten mit Ambulatorium der Veterinärmedizinischen Fakultät der Universität Zürich.
Schweiz Arch Tierheilkd. 2000 Oct;142(10):581-8.
A major problem in camel breeding in East Africa is the high mortality rate of young camel calves. The purpose of this research was to examine the quality of camel colostrum and extent of the calves passive immunization by maternal antibodies. In 31 camel birth on a ranch in Kenya, IgG concentrations in the colostrum and in the serum of the calf during the first three days of life were measured. IgG concentration in the serum of the calf reaches a maximum 24 hours after birth. In 39% of the examined calves, this maximum concentration was below 4 g/l. In 61% of the calves, an IgG concentration of more than 4 g/l was reached. No correlation was found between diseased animals and the IgG concentrations in the serum of the calves involved. A minor IgG concentration can be excluded as a reason for calves mortality. The high percentage of insufficient IgG concentration in the serum of the calves therefore must be caused by insufficient intake of colostrum. Future measures in order to decrease calves mortality must therefore try to improve the management of calves, especially the sufficient intake of colostrum.
东非骆驼养殖中的一个主要问题是幼骆驼犊的高死亡率。本研究的目的是检查骆驼初乳的质量以及犊牛通过母体抗体进行被动免疫的程度。在肯尼亚一个牧场出生的31头骆驼中,测量了初乳和犊牛出生后前三天血清中的IgG浓度。犊牛血清中的IgG浓度在出生后24小时达到最高。在39%的被检查犊牛中,这个最高浓度低于4g/l。在61%的犊牛中,IgG浓度达到了4g/l以上。在所涉及的患病动物与犊牛血清中的IgG浓度之间未发现相关性。IgG浓度低可排除为犊牛死亡的原因。因此,犊牛血清中IgG浓度不足的高比例必定是由于初乳摄入不足所致。为了降低犊牛死亡率,未来的措施必须设法改善犊牛的管理,特别是要保证初乳的充足摄入。