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Het inschatten van energiereserves onder de vorm van vet bij hoogproductieve melkkoeien

Mieke Van Eetvelde UGent, Stefaan De Smet UGent and Geert Opsomer UGent (2011) VLAAMS DIERGENEESKUNDIG TIJDSCHRIFT. 80(1). p.31-37
abstract
The aim of the present study was to examine the correlation between the subcutaneous and intra-abdominal fat deposits in dairy cows and, furthermore, to determine how these fat deposits can be accurately measured in the living cow using methods applicable in the field. In 74 dairy cows, the amount of subcutaneous fat was measured just before slaughter, using three different techniques: determination of the body condition score (BCS), measurement of the ultrasonographic back fat thickness (BFT), and measurement of the bio-electrical impedance (bioelectrical impedance analysis, BIA). After slaughter, the amount of fat stored in the omentum was determined using a new omental fat score (OFS) based on a 5-point scale. The results revealed that there is significant correlation between the different methods tested to measure the amount of subcutaneously stored fat (BCS-BFT: r = 0.71; p < 0.001; BCS-BIA: r 0.39; p < 0.01; BFT-BIA: r = 0.57; p < 0.001). Remarkably, however, no correlation was found between the OFS and the amount of fat stored in the subcutis as measured by the BCS and the BFT (r = 0.20; p = 0.08 and r = 0.10; p = 0.39, respectively). Also, the BIA results were not correlated with the OFS (r = 0,10; p = 0,40), a fact which could be due to the electrode placement along the dorsal midline of the cow instead of on the limbs. The conclusion of this study is that both farmers and veterinarians should be aware that, although the BCS and the BFT may be scored as optimal in relation to their stage in lactation, some cows may hide a significant amount of fat in their omentum, which may put them at a higher risk of suffering from metabolic diseases. More research is required in order to develop new techniques to measure accurately and in a practically applicable way the total amount of fat stored in the body of a living cow.
Please use this url to cite or link to this publication:
author
organization
alternative title
Measuring body energy reserves stored as fat in high yielding dairy cows
year
type
journalArticle (original)
publication status
published
subject
keyword
BOVINE CARCASS, BIOELECTRICAL-IMPEDANCE, STEERS, TISSUE, CATTLE, MUSCLE, BREED, LIVER
journal title
VLAAMS DIERGENEESKUNDIG TIJDSCHRIFT
Vlaams Diergeneesk. Tijdschr.
volume
80
issue
1
pages
31 - 37
Web of Science type
Article
Web of Science id
000287981600003
JCR category
VETERINARY SCIENCES
JCR impact factor
0.326 (2011)
JCR rank
106/141 (2011)
JCR quartile
4 (2011)
ISSN
0303-9021
language
Dutch
UGent publication?
yes
classification
A1
copyright statement
I have retained and own the full copyright for this publication
id
1198080
handle
http://hdl.handle.net/1854/LU-1198080
alternative location
http://vdt.ugent.be/code/showupload.php?id=628
date created
2011-03-28 14:55:47
date last changed
2011-04-21 15:06:36
@article{1198080,
  abstract     = {The aim of the present study was to examine the correlation between the subcutaneous and intra-abdominal fat deposits in dairy cows and, furthermore, to determine how these fat deposits can be accurately measured in the living cow using methods applicable in the field. In 74 dairy cows, the amount of subcutaneous fat was measured just before slaughter, using three different techniques: determination of the body condition score (BCS), measurement of the ultrasonographic back fat thickness (BFT), and measurement of the bio-electrical impedance (bioelectrical impedance analysis, BIA). After slaughter, the amount of fat stored in the omentum was determined using a new omental fat score (OFS) based on a 5-point scale. The results revealed that there is significant correlation between the different methods tested to measure the amount of subcutaneously stored fat (BCS-BFT: r = 0.71; p {\textlangle} 0.001; BCS-BIA: r 0.39; p {\textlangle} 0.01; BFT-BIA: r = 0.57; p {\textlangle} 0.001). Remarkably, however, no correlation was found between the OFS and the amount of fat stored in the subcutis as measured by the BCS and the BFT (r = 0.20; p = 0.08 and r = 0.10; p = 0.39, respectively). Also, the BIA results were not correlated with the OFS (r = 0,10; p = 0,40), a fact which could be due to the electrode placement along the dorsal midline of the cow instead of on the limbs. The conclusion of this study is that both farmers and veterinarians should be aware that, although the BCS and the BFT may be scored as optimal in relation to their stage in lactation, some cows may hide a significant amount of fat in their omentum, which may put them at a higher risk of suffering from metabolic diseases. More research is required in order to develop new techniques to measure accurately and in a practically applicable way the total amount of fat stored in the body of a living cow.},
  author       = {Van Eetvelde, Mieke and De Smet, Stefaan and Opsomer, Geert},
  issn         = {0303-9021},
  journal      = {VLAAMS DIERGENEESKUNDIG TIJDSCHRIFT},
  keyword      = {BOVINE CARCASS,BIOELECTRICAL-IMPEDANCE,STEERS,TISSUE,CATTLE,MUSCLE,BREED,LIVER},
  language     = {dut},
  number       = {1},
  pages        = {31--37},
  title        = {Het inschatten van energiereserves onder de vorm van vet bij hoogproductieve melkkoeien},
  url          = {http://vdt.ugent.be/code/showupload.php?id=628},
  volume       = {80},
  year         = {2011},
}

Chicago
Van Eetvelde, Mieke, Stefaan De Smet, and Geert Opsomer. 2011. “Het Inschatten Van Energiereserves Onder De Vorm Van Vet Bij Hoogproductieve Melkkoeien.” Vlaams Diergeneeskundig Tijdschrift 80 (1): 31–37.
APA
Van Eetvelde, M., De Smet, S., & Opsomer, G. (2011). Het inschatten van energiereserves onder de vorm van vet bij hoogproductieve melkkoeien. VLAAMS DIERGENEESKUNDIG TIJDSCHRIFT, 80(1), 31–37.
Vancouver
1.
Van Eetvelde M, De Smet S, Opsomer G. Het inschatten van energiereserves onder de vorm van vet bij hoogproductieve melkkoeien. VLAAMS DIERGENEESKUNDIG TIJDSCHRIFT. 2011;80(1):31–7.
MLA
Van Eetvelde, Mieke, Stefaan De Smet, and Geert Opsomer. “Het Inschatten Van Energiereserves Onder De Vorm Van Vet Bij Hoogproductieve Melkkoeien.” VLAAMS DIERGENEESKUNDIG TIJDSCHRIFT 80.1 (2011): 31–37. Print.