Metabolic status, lactation persistency, and udder health of dairy cows after different dry period lengths

Renny van Hoeij

Research output: Thesisinternal PhD, WU

Abstract

Cows traditionally have a 6 to 8 week non-lactating –‘dry period’-  before calving and the start of the next lactation in order to maximize milk production in the subsequent lactation. An omitted, compared with a shortened, dry period reduces milk yield and improves energy availability in cows postpartum, but effects on udder health and persistency were unclear. Cows without a dry period fattened and spontaneously dried off due to the improved energy availability. Reducing the energy availability in the feed for cows without a dry period did not affect fattening or lactation persistency in late lactation. Cows with a short or without a dry period did not receive dry cow antibiotics in this study and this did not affect udder health across the dry period or in early lactation, but seemed to impair udder health in late lactation for cows without a dry period.

Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • Wageningen University
Supervisors/Advisors
  • Kemp, Bas, Promotor
  • Lam, T.J.G.M., Promotor, External person
  • van Knegsel, Ariette, Co-promotor
  • Dijkstra, Jan, Co-promotor
Award date20 Dec 2017
Place of PublicationWageningen
Publisher
Print ISBNs9789463438070
DOIs
Publication statusPublished - 2017

Fingerprint

dry period (lactation)
udders
dairy cows
lactation
cows
late lactation
energy
early lactation
calving
finishing
milk yield
milk production
antibiotics

Keywords

  • dairy cattle
  • animal health
  • animal behaviour
  • dry period
  • metabolism
  • energy balance
  • lactation
  • milk production
  • udders
  • cattle feeding

Cite this

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title = "Metabolic status, lactation persistency, and udder health of dairy cows after different dry period lengths",
abstract = "Cows traditionally have a 6 to 8 week non-lactating –‘dry period’-  before calving and the start of the next lactation in order to maximize milk production in the subsequent lactation. An omitted, compared with a shortened, dry period reduces milk yield and improves energy availability in cows postpartum, but effects on udder health and persistency were unclear. Cows without a dry period fattened and spontaneously dried off due to the improved energy availability. Reducing the energy availability in the feed for cows without a dry period did not affect fattening or lactation persistency in late lactation. Cows with a short or without a dry period did not receive dry cow antibiotics in this study and this did not affect udder health across the dry period or in early lactation, but seemed to impair udder health in late lactation for cows without a dry period.",
keywords = "dairy cattle, animal health, animal behaviour, dry period, metabolism, energy balance, lactation, milk production, udders, cattle feeding, melkvee, diergezondheid, diergedrag, gustperiode, metabolisme, energiebalans, lactatie, melkproductie, uiers, rundveevoeding",
author = "{van Hoeij}, Renny",
note = "WU thesis 6837 Includes bibliographical references. - With summary in English",
year = "2017",
doi = "10.18174/424484",
language = "English",
isbn = "9789463438070",
publisher = "Wageningen University",
school = "Wageningen University",

}

Metabolic status, lactation persistency, and udder health of dairy cows after different dry period lengths. / van Hoeij, Renny.

Wageningen : Wageningen University, 2017. 285 p.

Research output: Thesisinternal PhD, WU

TY - THES

T1 - Metabolic status, lactation persistency, and udder health of dairy cows after different dry period lengths

AU - van Hoeij, Renny

N1 - WU thesis 6837 Includes bibliographical references. - With summary in English

PY - 2017

Y1 - 2017

N2 - Cows traditionally have a 6 to 8 week non-lactating –‘dry period’-  before calving and the start of the next lactation in order to maximize milk production in the subsequent lactation. An omitted, compared with a shortened, dry period reduces milk yield and improves energy availability in cows postpartum, but effects on udder health and persistency were unclear. Cows without a dry period fattened and spontaneously dried off due to the improved energy availability. Reducing the energy availability in the feed for cows without a dry period did not affect fattening or lactation persistency in late lactation. Cows with a short or without a dry period did not receive dry cow antibiotics in this study and this did not affect udder health across the dry period or in early lactation, but seemed to impair udder health in late lactation for cows without a dry period.

AB - Cows traditionally have a 6 to 8 week non-lactating –‘dry period’-  before calving and the start of the next lactation in order to maximize milk production in the subsequent lactation. An omitted, compared with a shortened, dry period reduces milk yield and improves energy availability in cows postpartum, but effects on udder health and persistency were unclear. Cows without a dry period fattened and spontaneously dried off due to the improved energy availability. Reducing the energy availability in the feed for cows without a dry period did not affect fattening or lactation persistency in late lactation. Cows with a short or without a dry period did not receive dry cow antibiotics in this study and this did not affect udder health across the dry period or in early lactation, but seemed to impair udder health in late lactation for cows without a dry period.

KW - dairy cattle

KW - animal health

KW - animal behaviour

KW - dry period

KW - metabolism

KW - energy balance

KW - lactation

KW - milk production

KW - udders

KW - cattle feeding

KW - melkvee

KW - diergezondheid

KW - diergedrag

KW - gustperiode

KW - metabolisme

KW - energiebalans

KW - lactatie

KW - melkproductie

KW - uiers

KW - rundveevoeding

U2 - 10.18174/424484

DO - 10.18174/424484

M3 - internal PhD, WU

SN - 9789463438070

PB - Wageningen University

CY - Wageningen

ER -