Blood cell count and morphology, and vitamin B12 concentration in pre- and post-weaned calves

IF 0.6 4区 农林科学 Q3 VETERINARY SCIENCES Veterinarni Medicina Pub Date : 2021-10-26 DOI:10.17221/12/2021-vetmed
EG Katsogiannou, PD Katsoulos, C. Ziogas, MC Naskou, G. Christodoulopoulos, Z. Polizopoulou, A. Tzivara, LV Athanasiou
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Abstract

Haematological indicators may resent physiological variation by age. Vitamin B12 promotes haematopoiesis. The aims of this study were: 1) to compare the values of the haematological variables and the concentration of vitamin B12 in pre- or post-weaned veal calves and 2) to identify the possible association between the values of the haematological variables and the concentration of B12 in the blood of veal calves. Blood was collected on the same day from 31 pre-weaned and 31 weaned calves of the Limousine breed from the same farm. The complete blood count, including the blood cell morphology evaluation, was performed and the serum B12, total protein and albumin concentrations were determined. The serum concentration of vitamin B12, the haematocrit (HCT), the haemoglobin concentration (HGB), the platelet count and the lymphocyte count were significantly higher in the weaned calves. A very strong positive correlation was found between the concentration of the vitamin B12 and HCT and HGB before weaning, while these correlations were moderately positive following weaning and in the total population tested as well. The observed variation in the blood cell count and morphology, such as poikilocytosis and the presence of macrocytes and hypersegmented neutrophils, along with the age of the animal seem to be related to the vitamin B12 concentration.
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断奶前后犊牛血细胞计数、形态及维生素B12浓度的变化
血液学指标可能会因年龄而发生生理变化。维生素B12促进造血。本研究的目的是:1)比较断奶前和断奶后小牛血液中维生素B12的血液学变量值和浓度;2)确定血液学变量值和小牛血液中维生素B12浓度之间可能存在的关联。同一天采集了来自同一农场的31头未断奶犊牛和31头断奶犊牛的血液。进行全血细胞计数,包括血细胞形态评估,测定血清B12、总蛋白和白蛋白浓度。断奶犊牛血清维生素B12浓度、红细胞压积(HCT)、血红蛋白浓度(HGB)、血小板计数和淋巴细胞计数均显著高于断奶犊牛。断奶前维生素B12浓度与HCT和HGB之间存在非常强的正相关,而断奶后这些相关性也在总体测试人群中呈中等正相关。观察到的血细胞计数和形态的变化,如多倍体、巨细胞和超节段中性粒细胞的存在,随着动物年龄的增长,似乎与维生素B12浓度有关。
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来源期刊
Veterinarni Medicina
Veterinarni Medicina Veterinary Sciences-兽医学
CiteScore
1.30
自引率
0.00%
发文量
62
审稿时长
18-36 weeks
期刊介绍: The journal Veterinarni Medicina publishes in English original papers, short communications, critical reviews and case reports from all fields of veterinary and biomedical sciences.
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