The effect of seasonal changing temperature on blood metabolic indicators in Holstein Friesian cows

The main aim of this research was to study the impact of seasonal temperature variation on metabolic markers in dairy cows, particularly blood parameters that are recognised as indicators of homeostasis. From December 2019 to December 2020, 723 blood samples were collected from 382 lactating Holstei...

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Main Authors: Wissem Baccouri, George Wanjala, Violetta Tóth, István Komlósi, Imre Földesi, Kata Diána, Edit Mikó
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:Cogent Food & Agriculture
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Online Access:https://www.tandfonline.com/doi/10.1080/23311932.2025.2550498
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author Wissem Baccouri
George Wanjala
Violetta Tóth
István Komlósi
Imre Földesi
Kata Diána
Edit Mikó
author_facet Wissem Baccouri
George Wanjala
Violetta Tóth
István Komlósi
Imre Földesi
Kata Diána
Edit Mikó
author_sort Wissem Baccouri
collection DOAJ
description The main aim of this research was to study the impact of seasonal temperature variation on metabolic markers in dairy cows, particularly blood parameters that are recognised as indicators of homeostasis. From December 2019 to December 2020, 723 blood samples were collected from 382 lactating Holstein Friesian cows throughout the four seasons. The temperature humidity index (THI) was used to identify the seasons: hot (THI ≥68), or cold (THI <68). Seasons had a significant effect (p < 0.05) on insulin and prolactin levels and no significant effect on non-esterified fatty acids (NEFA). Insulin averaged 9.86 mIU/L in spring, significantly higher than winter (6.30 mIU/L) and autumn (5.92 mIU/L), but did not differ between spring and summer. Prolactin levels increased progressively, they were lowest in autumn (3.78 ng/mL), rose slightly in winter (6.49 ng/mL), and continued to increase in spring (8.58 ng/mL) and summer (11.22 ng/mL). In conclusion, the fluctuation in temperature across the seasons under continental climate significantly impacts specific metabolic markers in dairy cows. Despite these seasonal variations in insulin and prolactin, NEFA levels remained consistent across all seasons. These findings highlight the differential impact of seasonal temperature changes on key metabolic hormones involved in energy balance and lactation in Holstein Friesian cows.
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spelling doaj-art-db7f015e40a244048cd85d730f98b0402025-08-26T12:41:40ZengTaylor & Francis GroupCogent Food & Agriculture2331-19322025-12-0111110.1080/23311932.2025.2550498The effect of seasonal changing temperature on blood metabolic indicators in Holstein Friesian cowsWissem Baccouri0George Wanjala1Violetta Tóth2István Komlósi3Imre Földesi4Kata Diána5Edit Mikó6Doctoral School of Animal Science, University of Debrecen, Debrecen, HungaryDoctoral School of Animal Science, University of Debrecen, Debrecen, HungaryInstitute of Animal Sciences and Wildlife Management, University of Szeged, Hódmezővásárhely, HungaryDoctoral School of Animal Science, University of Debrecen, Debrecen, HungaryDepartment of Laboratory Medicine, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, HungaryDepartment of Laboratory Medicine, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, HungaryInstitute of Animal Sciences and Wildlife Management, University of Szeged, Hódmezővásárhely, HungaryThe main aim of this research was to study the impact of seasonal temperature variation on metabolic markers in dairy cows, particularly blood parameters that are recognised as indicators of homeostasis. From December 2019 to December 2020, 723 blood samples were collected from 382 lactating Holstein Friesian cows throughout the four seasons. The temperature humidity index (THI) was used to identify the seasons: hot (THI ≥68), or cold (THI <68). Seasons had a significant effect (p < 0.05) on insulin and prolactin levels and no significant effect on non-esterified fatty acids (NEFA). Insulin averaged 9.86 mIU/L in spring, significantly higher than winter (6.30 mIU/L) and autumn (5.92 mIU/L), but did not differ between spring and summer. Prolactin levels increased progressively, they were lowest in autumn (3.78 ng/mL), rose slightly in winter (6.49 ng/mL), and continued to increase in spring (8.58 ng/mL) and summer (11.22 ng/mL). In conclusion, the fluctuation in temperature across the seasons under continental climate significantly impacts specific metabolic markers in dairy cows. Despite these seasonal variations in insulin and prolactin, NEFA levels remained consistent across all seasons. These findings highlight the differential impact of seasonal temperature changes on key metabolic hormones involved in energy balance and lactation in Holstein Friesian cows.https://www.tandfonline.com/doi/10.1080/23311932.2025.2550498ProlactininsulinNEFAheat-stresscowsAnimal Physiology
spellingShingle Wissem Baccouri
George Wanjala
Violetta Tóth
István Komlósi
Imre Földesi
Kata Diána
Edit Mikó
The effect of seasonal changing temperature on blood metabolic indicators in Holstein Friesian cows
Cogent Food & Agriculture
Prolactin
insulin
NEFA
heat-stress
cows
Animal Physiology
title The effect of seasonal changing temperature on blood metabolic indicators in Holstein Friesian cows
title_full The effect of seasonal changing temperature on blood metabolic indicators in Holstein Friesian cows
title_fullStr The effect of seasonal changing temperature on blood metabolic indicators in Holstein Friesian cows
title_full_unstemmed The effect of seasonal changing temperature on blood metabolic indicators in Holstein Friesian cows
title_short The effect of seasonal changing temperature on blood metabolic indicators in Holstein Friesian cows
title_sort effect of seasonal changing temperature on blood metabolic indicators in holstein friesian cows
topic Prolactin
insulin
NEFA
heat-stress
cows
Animal Physiology
url https://www.tandfonline.com/doi/10.1080/23311932.2025.2550498
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