Assay of Blood Mineral Profiles of Dairy Cows at Various Physiological Status, Seasons and Production Systems in Two Districts of East Shoa Zone, Oromia Region, Ethiopia

Asian Journal of Dairy and Food Research Pub Date : 2020-04-06 DOI:10.18805/ajdfr.dr-155

Wondewsen Bekele, G. Goshu, B. Tamir, T. Demissie, Z. Sahle

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引用次数: 1

Abstract

This study was conducted in East Shoa Zone, Oromia Region, Ethiopia, to determine serum minerals of dairy cows at different season. The mineral assessed were Calcium (Ca), Magnesium (Mg), Phosphors (P), Iron (Fe), Copper (Cu), Cobalt (Co) and Zinc (Zn). The district and the production systems were selected purposively. A total of two hundred forty blood samples were collected. Blood serum was collected, digested and analyzed for minerals, using Atomic Absorption Spectrophotometer and Photoelectric colorimeter. The mean serum calcium level was 0.080 vs 0.082g/L for lactating and 0.090, vs 0.081gm/L for dry cows in both seasons, in Ada’a and Adama district, which was mean serum calcium level was very close to critical level (CL) or said to borderline. The mean serum phosphorus was 0.037vs 0.039 g/L) for lactating and 0.038 vs 0.037 gm/L for dry cows in both season in study districts. In general, in addition to Ca limited number of dairy cows were deficient for P, Cu and co. The difference in mean serum magnesium was significant (P less than 0.05) by production system, physiological state of the animals with seasons. Similarly, the difference in serum copper level was statistically significant (p less than 0.05) based on physiology of cows, production system and season. Iron serum concentration showed a significant difference (P less than 0.05) by season, physiology and production system. In case of Zinc and cobalt serum concentration showed a significant difference (p less than 0.05) between production system, physiological stat and season. It could be concluded that in the study area most serum minerals of dairy cows were either below the critical level or very near to the critical level. The variation in serum level of measured mineral was also significant in many cases. Therefore, it is necessary to supplement these deficient minerals to the ration of dairy cows to improve production, productivity, health and reproduction efficiency.

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埃塞俄比亚奥罗米亚地区东肖亚区两个地区不同生理状态、季节和生产系统奶牛血液矿物质概况分析

本研究在埃塞俄比亚奥罗米亚地区东肖亚区进行，目的是测定不同季节奶牛血清中的矿物质。评估的矿物质包括钙（Ca）、镁（Mg）、磷（P）、铁（Fe）、铜（Cu）、钴（Co）和锌（Zn）。有目的性地选择了地区和生产系统。共采集了 240 份血样。采集血清后，使用原子吸收分光光度计和光电比色计对血清中的矿物质进行消化和分析。在阿达阿和阿达玛地区的两个季节，泌乳牛的平均血清钙水平为 0.080 vs 0.082g/L，干奶牛的平均血清钙水平为 0.090 vs 0.081gm/L，这表明平均血清钙水平非常接近临界水平（CL）或被称为临界值。研究地区两季泌乳牛和干奶牛的平均血清磷分别为 0.037 和 0.039 克/升，0.038 和 0.037 克/升。总体而言，除钙外，少数奶牛还缺乏磷、铜和钴。生产系统、动物生理状态和季节对平均血清镁的影响差异显著（P 小于 0.05）。同样，根据奶牛的生理状况、生产系统和季节，血清铜水平的差异也有统计学意义（P 小于 0.05）。铁的血清浓度在不同季节、不同生理机能和不同生产方式下差异显著（P 小于 0.05）。锌和钴的血清浓度在生产系统、生理状态和季节之间存在显著差异（P 小于 0.05）。可以得出结论，在研究地区，大多数奶牛血清中的矿物质含量低于临界水平或非常接近临界水平。在许多情况下，所测矿物质的血清水平差异也很大。因此，有必要在奶牛日粮中补充这些缺乏的矿物质，以提高产量、生产率、健康和繁殖效率。

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Asian Journal of Dairy and Food Research

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