Seasonal variations in hematological profile of Holstein dairy cows as an indicator for physiological status assessment

Abstract. This study aims to investigate, for the first time in Algeria, the effect of seasonal climatic changes on the hematological profile of Holstein dairy cows as an indicator for their physiological status assessment. The study was conducted between November 2018 and October 2019 and was perfo...

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Main Author: M. Mekroud
Format: Article
Language:English
Published: Trakia University. Faculty of Agriculture, Stara Zagora 2021-03-01
Series:Agricultural Science and Technology
Subjects:
Online Access:https://agriscitech.eu/seasonal-variations-in-hematological-profile-of-holstein-dairy-cows-as-an-indicator-for-physiological-status-assessment/
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author M. Mekroud
author_facet M. Mekroud
author_sort M. Mekroud
collection DOAJ
description Abstract. This study aims to investigate, for the first time in Algeria, the effect of seasonal climatic changes on the hematological profile of Holstein dairy cows as an indicator for their physiological status assessment. The study was conducted between November 2018 and October 2019 and was performed on a lot of 14 dairy cows. Blood samples were collected quarterly during this study period. The data regarding seasonal changes in hematological parameters were not significant concerning red blood cell count (RBC), hemoglobin concentration (Hb) and mean corpuscular volume (MCV). However, variations were significant for hematocrit (HCT), mean corpuscular hemoglobin content (MCH), mean corpuscular hemoglobin concentration (MCHC) and blood platelets (PLT). The percentage of HCT was higher in autumn (27.99%) and spring (28.58%) compared to winter (26.52%) and summer (26.75%), (p<0.05). MCH, MCHC and PLT levels were higher in summer compared to the other seasons (p<0.05), (p<0.01) and (p<0.001), respectively. The highest number of WBC was generally observed in summer and autumn and the lowest in winter and spring (p<0.01). The ratio neutrophils/lymphocytes (N:L) was equal to 1.01, 0.79, 0.98 and 0.89 in autumn, winter, spring and summer, respectively of which this difference was not significant. This study might be helpful for providing base line information on the hematological profile of dairy cattle for the evaluation of physiological status.
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spelling doaj.art-705d9ed6b36647b7b98ba9dae90eb7fe2022-12-21T19:47:56ZengTrakia University. Faculty of Agriculture, Stara ZagoraAgricultural Science and Technology1313-88201314-412X2021-03-01131283310.15547/ast.2021.01.005Seasonal variations in hematological profile of Holstein dairy cows as an indicator for physiological status assessmentM. Mekroud Abstract. This study aims to investigate, for the first time in Algeria, the effect of seasonal climatic changes on the hematological profile of Holstein dairy cows as an indicator for their physiological status assessment. The study was conducted between November 2018 and October 2019 and was performed on a lot of 14 dairy cows. Blood samples were collected quarterly during this study period. The data regarding seasonal changes in hematological parameters were not significant concerning red blood cell count (RBC), hemoglobin concentration (Hb) and mean corpuscular volume (MCV). However, variations were significant for hematocrit (HCT), mean corpuscular hemoglobin content (MCH), mean corpuscular hemoglobin concentration (MCHC) and blood platelets (PLT). The percentage of HCT was higher in autumn (27.99%) and spring (28.58%) compared to winter (26.52%) and summer (26.75%), (p<0.05). MCH, MCHC and PLT levels were higher in summer compared to the other seasons (p<0.05), (p<0.01) and (p<0.001), respectively. The highest number of WBC was generally observed in summer and autumn and the lowest in winter and spring (p<0.01). The ratio neutrophils/lymphocytes (N:L) was equal to 1.01, 0.79, 0.98 and 0.89 in autumn, winter, spring and summer, respectively of which this difference was not significant. This study might be helpful for providing base line information on the hematological profile of dairy cattle for the evaluation of physiological status.https://agriscitech.eu/seasonal-variations-in-hematological-profile-of-holstein-dairy-cows-as-an-indicator-for-physiological-status-assessment/changesdairy cowshematological parametersseasons
spellingShingle M. Mekroud
Seasonal variations in hematological profile of Holstein dairy cows as an indicator for physiological status assessment
Agricultural Science and Technology
changes
dairy cows
hematological parameters
seasons
title Seasonal variations in hematological profile of Holstein dairy cows as an indicator for physiological status assessment
title_full Seasonal variations in hematological profile of Holstein dairy cows as an indicator for physiological status assessment
title_fullStr Seasonal variations in hematological profile of Holstein dairy cows as an indicator for physiological status assessment
title_full_unstemmed Seasonal variations in hematological profile of Holstein dairy cows as an indicator for physiological status assessment
title_short Seasonal variations in hematological profile of Holstein dairy cows as an indicator for physiological status assessment
title_sort seasonal variations in hematological profile of holstein dairy cows as an indicator for physiological status assessment
topic changes
dairy cows
hematological parameters
seasons
url https://agriscitech.eu/seasonal-variations-in-hematological-profile-of-holstein-dairy-cows-as-an-indicator-for-physiological-status-assessment/
work_keys_str_mv AT mmekroud seasonalvariationsinhematologicalprofileofholsteindairycowsasanindicatorforphysiologicalstatusassessment