Shallow M, Ellis N J, Judson G J
Department of Agriculture, Adelaide, South Australia.
Aust Vet J. 1989 Aug;66(8):250-1. doi: 10.1111/j.1751-0813.1989.tb13582.x.
Bodyweight, plasma vitamin B12 and blood selenium concentrations were monitored in prime lambs given different forms of supplementation at 2 sites in separate years. At the first site treatment groups comprised control, vitamin B12 injection, selenium given orally and a combination of vitamin B12 and selenium. At the second site cobalt and selenium supplied in a glass bullet was compared with an untreated group. Significant sex-related responses were observed to treatment in terms of bodyweight and at site 2 in plasma vitamin B12 concentrations. A marked bodyweight response to glass bullet supplementation was observed in castrated male lambs but not in ewe lambs. These studies show that sex differences should be considered when investigating trace element deficiencies.
在不同年份的两个地点，对接受不同形式补充剂的优质羔羊的体重、血浆维生素B12和血液硒浓度进行了监测。在第一个地点，治疗组包括对照组、维生素B12注射组、口服硒组以及维生素B12和硒联合组。在第二个地点，将玻璃弹丸提供的钴和硒与未处理组进行了比较。在体重方面以及在第二个地点的血浆维生素B12浓度方面，观察到了与性别相关的显著治疗反应。在去势公羔羊中观察到对玻璃弹丸补充剂有明显的体重反应，但母羔羊没有。这些研究表明，在调查微量元素缺乏情况时应考虑性别差异。
