Home
http://www.virbac.fr/ http://www.boehringer-ingelheim.com/ http://www.novartis.com/ http://www.animalhealth.bayerhealthcare.com/
vetcontact
Vetrinär
Tiermedizin
  WELCOME  
vetcontact
Vetrinär
Tiermedizin
  Privacy Policy  
  Home  
  Login / Newsletter  
vetcontact
Vetrinär
Tiermedizin
  CONTACTS  
vetcontact
Vetrinär
Tiermedizin
  Classifieds  
  New Products  
  VetCompanies  
  VetSchools  
vetcontact
Vetrinär
Tiermedizin
  PROFESSION  
vetcontact
Vetrinär
Tiermedizin
  Edutainment  
  VetAgenda  
  Presentations  
  Posters  
  ESAVS  
  Specialisation  
vetcontact
Vetrinär
Tiermedizin
  INSIGHT  
vetcontact
Vetrinär
Tiermedizin
  Congress News  
  Picture Galleries  
vetcontact
Vetrinär
Tiermedizin
  PRODUCTS  
vetcontact
Vetrinär
Tiermedizin
  Bayer  
  Boehringer Ing.  
  Novartis  
  Virbac

 
  Simply book for less...  
    

Bovine    Equine    Small Animal Practice    Swine Practice    Articles    Vetjournal    
deutsch english español polski francais
Home / WELCOME / Archiv / Bovine /     
 
Time Empty and Ketone Body Status in the Early Postpartum Period of Dairy Cows
This study aimed to assess the effect of ketone body status early postpartum on time empty in 74 multiparous dairy cows under field conditions. The results might influence the herd-fertility-monitoring programmes.

Animals were equally distributed across eight farms and were controlled by the same herd-fertility-monitoring programme. Cows were visited twice antepartum and six times postpartum at weekly intervals between 0530 and 0830 a.m.
On these occasions, body condition scores and milk yields were measured, blood and milk samples were taken, cows were gynaecologically examined, and parameters of reproduction were recorded.

Cows with a time empty of less or more than 80 days were classified as early and late conceiving cows (EC and LC, respectively). A time empty of 80 days results in calving-to-calving intervals of 1 year and classification based on this threshold value resulted in groups of equal size and equal distribution of EC and LC within farms. Ketone bodies measured were -hydroxybutyrate in blood and acetoacetate and acetone in blood and milk. Blood and milk ketone body concentrations, as well as the ratios of acetoacetate and acetone to -hydroxybutyrate, over the first 6 weeks postpartum were higher in LC than in EC, whereas plasma glucose and non-esterified fatty acids and milk fat, protein and urea concentrations did not exhibit clear differences between groups.

Ketone body concentrations were as good predictors of time empty as ketone body ratios and might have practical impact in herd-fertility-monitoring programmes.

Source: Koller, A, Reist, M, Blum, JW, Küpfer, U (2003): Time Empty and Ketone Body Status in the Early Postpartum Period of Dairy Cows. In: Reproduction in Domestic Animals 38 (1), pp 41-49.



Tell a friend   |   Print version   |   Send this article

BOVINE

The myostatin gene and its relevance to livestock animalsmembers
Myostatin, also known as growth differentiation factor 8, a member of the transforming growth factorâ€beta superâ€family, is a negative regulator of muscle development. Myostatin acts at key points during pre†and postâ€natal life of amniotes that ultimately determine the overall muscle mass of an animal. A fascinating summary about the current an overview of mechanisms of action and its potential relevance in livestock animals.

  • Immune modulators and proliferation of peripheral blood mononuclear cells in cows peripartummembers
  • Milk/plasma ratio and milk and plasma pharmacokinetics of amoxicillin in lactating cowsmembers
  • Neuromuscular block monitoring after cis-Âatracurium in the anaesthetized pigmembers
  • Growth factor expression in cows with cystic ovarian diseasemembers
  • Protecting protein to reduce methane production in ruminantsmembers
  • Lifetime prognosis in cattle with necrotic laryngitismembers
  • ECG findings in neonatal calves with diarrhea and associated potassium balance disordersmembers
  • Bacterial translocation in calves with atresia colimembers
  • Optimising lameness detection in dairy cattle members
  • Role of melatonin and its receptors in animal reproductionmembers
  • Physiological changes in inflammatory parameters in cows prae and post partummembers
  • Zinc Deficiency-Like Syndrome in Fleckvieh Calvesmembers


  • [ Home ] [ About ] [ Contact / Request ] [ Privacy Policy ]

    Copyright © 2001-2018 VetContact GmbH
    All rights reserved