Influence of lactation stage on heat production and macronutrient oxidation in dairy cows during a 24-hour fasting period.
carbohydrate oxidation
dairy cows
fat oxidation
heat production
Journal
Journal of dairy science
ISSN: 1525-3198
Titre abrégé: J Dairy Sci
Pays: United States
ID NLM: 2985126R
Informations de publication
Date de publication:
Apr 2023
Apr 2023
Historique:
received:
23
05
2022
accepted:
23
10
2022
medline:
4
4
2023
pubmed:
24
2
2023
entrez:
23
2
2023
Statut:
ppublish
Résumé
Understanding nutrient utilization and partitioning is essential for advancing the efficiency of dairy cattle. Our objective was to determine if dairy cows exposed to a 24-h fasting period differ in heat production (HP) and macronutrient oxidation at different stages of lactation. Twelve primiparous, lactating German Holstein dairy cows were used in a longitudinal study design spanning from 2013 to 2014. Dairy cows were housed in respiration chambers during 3 stages of the lactation cycle: early (mean ± SD; 28.8 ± 6.42 d), mid- (89.4 ± 4.52 d), and late (293 ± 7.76 d) lactation. Individual CO
Identifiants
pubmed: 36823016
pii: S0022-0302(23)00067-X
doi: 10.3168/jds.2022-22330
pii:
doi:
Substances chimiques
Fatty Acids, Nonesterified
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
2933-2947Informations de copyright
The Authors. Published by Elsevier Inc. and Fass Inc. on behalf of the American Dairy Science Association®. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).