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Article

Estimation of Individual Glucose Reserves in High-Yielding Dairy Cows

1
Department of Animal Nutrition and Animal Health, University of Kassel, Nordbahnhofstraße 1a, 37213 Witzenhausen, Germany
2
Institut National de la Recherche Agronomique, AgroParisTech, UMR Modélisation Systémique Appliquée aux Ruminants, Université Paris Saclay, 75005 Paris, France
3
Educational and Research Centre for Animal Husbandry, Hofgut Neumuehle, 67728 Müenchweiler an der Alsenz, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Agostino Sevi
Dairy 2022, 3(3), 438-464; https://doi.org/10.3390/dairy3030033
Received: 22 April 2022 / Revised: 25 May 2022 / Accepted: 9 June 2022 / Published: 24 June 2022
(This article belongs to the Section Dairy Animal Nutrition and Welfare)
Glucose plays a central role in numerous physiological processes in dairy cows related to immune defence and milk production. A lack of glucose impairs both objectives, although to different degrees. A method for the estimation of glucose balance (GB) in dairy cows was developed to assess glucose reserves in the intermediary metabolism. Digestive fluxes of glucogenic carbon were individually estimated via the Systool Web application based on data on body weight (BW), dry matter intake (DMI), and chemical analyses of feedstuffs. Fluxes of endogenous precursors glycerol, alanine and L-lactate and the glucose demand imposed by major glucose-consuming organs were deduced from BW, lactose yield and lactation stage. GB was calculated for 201 lactations (1 to 105 DIM) of 157 cows fed isoenergetic rations. Individual DMI, BW and milk yield were assessed on a daily basis. The results showed that the GB varied greatly between cows and lactation stages. In the first week of lactation, average daily GB reached levels close to zero (3.2 ± 13.5 mol C) and increased as lactation progressed. Most cows risk substantial shortages of glucose for maintenance during the first weeks of lactation. In face of the specific role of glucose for the functional capability of the immune function, the assessment of glucose reserves is a promising measure for the identification of cows at risk of impaired immunocompetence. View Full-Text
Keywords: ruminant metabolism; transition period; energy balance; immune function; production disease; risk analysis ruminant metabolism; transition period; energy balance; immune function; production disease; risk analysis
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MDPI and ACS Style

Habel, J.; Chapoutot, P.; Koch, C.; Sundrum, A. Estimation of Individual Glucose Reserves in High-Yielding Dairy Cows. Dairy 2022, 3, 438-464. https://doi.org/10.3390/dairy3030033

AMA Style

Habel J, Chapoutot P, Koch C, Sundrum A. Estimation of Individual Glucose Reserves in High-Yielding Dairy Cows. Dairy. 2022; 3(3):438-464. https://doi.org/10.3390/dairy3030033

Chicago/Turabian Style

Habel, Jonas, Patrick Chapoutot, Christian Koch, and Albert Sundrum. 2022. "Estimation of Individual Glucose Reserves in High-Yielding Dairy Cows" Dairy 3, no. 3: 438-464. https://doi.org/10.3390/dairy3030033

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