Blood serum mineral element concentrations of weaned Montana ram lambs and their relationship with water quality characteristics

The Professional Animal Scientist Pub Date : 2018-10-01 DOI:10.15232/PAS.2018-01747

C. M. Page, T. Murphy, M. V. Emon, J. Bowman, S. Wyffels, W. Stewart

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引用次数: 11

Abstract

ABSTRACT Clinical and subclinical trace mineral deficiencies can limit productivity in western sheep production systems. The objective of this research was to determine the proportion of ranches that supplemented with trace minerals and to quantify serum trace mineral concentrations in ram lambs after weaning across Montana with particular emphasis on Se and Zn. Serum samples (n = 214) were collected from ram lambs 8 to 10 mo of age (52.8 ± 16 kg) at 21 ranches throughout Montana and analyzed for Co, Cu, Fe, Mn, Mo, Se, and Zn. Ranches were classified as deficient, marginally deficient, adequate, or excessive by flock mean serum trace mineral concentrations. Additionally, water samples were analyzed for pertinent characteristics. The median and interquartile range of serum concentrations for each trace mineral across ranches were as follows: Co (0.41 ng/mL; 0.90 ng/mL), Cu (0.79 μg/mL; 0.24 μg/mL), Fe (153 μg/dL; 52 μg/dL), Mn (1.70 ng/mL; 0.80 ng/mL), Mo (15.3 ng/mL; 19.3 ng/mL), Se (115 ng/mL; 97.5 ng/mL), and Zn (0.70 μg/mL, 0.19 μg/mL). Of ranches surveyed, 67% provided a trace mineral supplement. Ranches that provided supplementary trace mineral had greater serum Se concentrations (P

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蒙大拿公羊断奶羔羊血清矿质元素浓度及其与水质特性的关系

临床和亚临床微量矿物质缺乏会限制西方绵羊生产系统的生产力。本研究的目的是确定添加微量矿物质的牧场比例，并量化蒙大拿州断奶后公羊羔血清微量矿物质浓度，特别是硒和锌。在蒙大拿州21个牧场采集8 ~ 10月龄(52.8±16 kg)公羊的血清样本(n = 214)，分析Co、Cu、Fe、Mn、mo、Se和Zn的含量。根据羊群平均血清微量矿物质浓度，将牧场分为缺乏、轻度缺乏、充足或过量。此外，对水样进行了相关特征分析。各牧场各微量元素血清浓度中位数和四分位数范围如下:Co (0.41 ng/mL;0.90 ng/mL)， Cu (0.79 μg/mL;0.24 μg/mL)，铁(153 μg/dL;52 μg/dL)， Mn (1.70 ng/mL;0.80 ng/mL)， Mo (15.3 ng/mL;19.3 ng/mL)，硒(115 ng/mL;Zn (0.70 μg/mL、0.19 μg/mL)。在接受调查的牧场中，67%的牧场提供微量矿物质补充剂。补充微量矿物质的牧场血清硒浓度(P

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The Professional Animal Scientist

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