Relationships between milk ketone bodies and selected milk indicators during conventional and extended lactation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722861%3A_____%2F24%3AN0000005" target="_blank" >RIV/26722861:_____/24:N0000005 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12220/24:43908459

Result on the web

<a href="https://jcea.agr.hr/articles/771712_Relationships_between_milk_ketone_bodies_and_selected_milk_indicators_during_conventional_and_extended_lactation_en.pdf" target="_blank" >https://jcea.agr.hr/articles/771712_Relationships_between_milk_ketone_bodies_and_selected_milk_indicators_during_conventional_and_extended_lactation_en.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5513/JCEA01/25.1.4095" target="_blank" >10.5513/JCEA01/25.1.4095</a>

Result language

angličtina

Original language name

Relationships between milk ketone bodies and selected milk indicators during conventional and extended lactation

Original language description

During lactation, dairy cows undergo various metabolic changes that are reflected not only in milk yield but also in milk composition. This study aimed to determine the milk performance and composition depending on the stage of lactation and describe relationships between energy metabolism indicators (ketone bodies: β-hydroxybutyrate (BHB), acetone) in milk and selected indicators of milk performance and composition. The study was conducted on 1,909 dairy cows (Holstein, Czech Fleckvieh, and their crossbreds), which were divided into four groups according to the stage of lactation (early (6-100 days in milk), mid (101-200 days), late (201-305 days), and extended (>305 days)). The obligatory dynamics of the main milk components were found during the entire lactation, i.e., an increase in the protein content (from 3.30 to 3.76 g/100 g) and fat content (from 4.25 to 4.42 g/100 g) and a decrease in the lactose content (from 5.06 to 4.91 g/100 g). Significantly higher (P < 0.001) contents of ketone bodies were found in early and extended lactation than in mid and late lactation. The effect of lipomobilization on milk fat composition is documented by positive correlation coefficients between ketone bodies and long-chain fatty acids (FAs) and medium-chain FAs and negative correlation coefficients between ketone bodies and short-chain FAs. Positive correlation coefficients were calculated between ketone bodies and milk fat, citric acid, fat-to-protein ratio, and somatic cell score, and negative correlation coefficients were calculated between ketone bodies and milk protein, lactose, and free FAs. Our results demonstrate that currently often realized extended lactation in high-yielding dairy cows is similarly demanding as early lactation regarding energy metabolism and, thus, milk composition changes.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

40201 - Animal and dairy science; (Animal biotechnology to be 4.4)

Project

<a href="/en/project/QK21010326" target="_blank" >QK21010326: The possibilities to influence an inhibitory substances content in milk as an effective tool to improve animal health for food quality and safety</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Central European Agriculture

ISSN

1332-9049

e-ISSN

—

Volume of the periodical

25

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

12

Pages from-to

1–12

UT code for WoS article

001197312300004

EID of the result in the Scopus database

2-s2.0-85188958596