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Effects of feeding different linseed sources on omasal fatty acid flows and fatty acid profiles of plasma and milk fat in lactating dairy cows

A Sterk, Bruno Vlaeminck UGent, M van Vuuren, WH Hendriks and J Dijkstra (2012) JOURNAL OF DAIRY SCIENCE. 95(6). p.3149-3165
abstract
The aim of this experiment was to study the effects of feeding different linseed sources on omasal fatty acid (FA) flows, and plasma and milk FA profiles in dairy cows. Four ruminally cannulated lactating Holstein-Friesian cows were assigned to 4 dietary treatments in a 4 × 4 Latin square design. Dietary treatments consisted of supplementing crushed linseed (CL), extruded whole linseed (EL), formaldehyde-treated linseed oil (FL) and linseed oil in combination with marine algae rich in docosahexaenoic acid (DL). Each period in the Latin square design lasted 21 d, with the first 16 d for adaptation. Omasal flow was estimated by the omasal sampling technique using Cr-EDTA, Yb-acetate, and acid detergent lignin as digesta flow markers. The average DM intake was 20.6 ± 2.5 kg/d, C18:3n-3 intake was 341 ± 51 g/d, and milk yield was 32.0 ± 4.6 kg/d. Milk fat yield was lower for the DL treatment (0.96 kg/d) compared with the other linseed treatments (CL, 1.36 kg/d; EL, 1.49 kg/d; FL, 1.54 kg/d). Omasal flow of C18:3n-3 was higher and C18:3n-3 biohydrogenation was lower for the EL treatment (33.8 g/d; 90.9%) compared with the CL (21.8 g/d; 94.0%), FL (15.5 g/d; 95.4%), and DL (4.6 g/d; 98.5%) treatments, whereas whole-tract digestibility of crude fat was lower for the EL treatment (64.8%) compared with the CL (71.3%), FL (78.5%), and DL (80.4%) treatments. The proportion of C18:3n-3 (g/100 g of FA) was higher for the FL treatment compared with the other treatments in plasma triacylglycerols (FL, 3.60; CL, 1.22; EL, 1.35; DL, 1.12) and milk fat (FL, 3.19; CL, 0.87; EL, 0.83; DL, 0.46). Omasal flow and proportion of C18:0 in plasma and milk fat were lower, whereas omasal flow and proportions of biohydrogenation intermediates in plasma and milk fat were higher for the DL treatment compared with the other linseed treatments. The results demonstrate that feeding EL did not result in a higher C18:3n-3 proportion in plasma and milk fat despite the higher omasal C18:3n-3 flow. This was related to the decreased total-tract digestibility of crude fat. Feeding FL resulted in a higher C18:3n-3 proportion in plasma and milk fat, although the omasal C18:3n-3 flow was similar or lower than for the CL and EL treatment, respectively. Feeding DL inhibited biohydrogenation of trans-11,cis-15-C18:2 to C18:0, as indicated by the increased omasal flows and proportions of biohydrogenation intermediates in plasma and milk fat.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
biohydrogenation, CONJUGATED LINOLEIC ACIDS, docosahexaenoic acid, linseed, fatty acid, IN-VITRO, RUMEN FERMENTATION, INTESTINAL DIGESTIBILITY, RUMINAL BIOHYDROGENATION, EXTRUDED FLAXSEED, CONCENTRATE RATIO, LIPID-METABOLISM, SUNFLOWER OIL, DUODENAL FLOW
journal title
JOURNAL OF DAIRY SCIENCE
J. Dairy Sci.
volume
95
issue
6
pages
3149 - 3165
Web of Science type
Article
Web of Science id
000304215400037
JCR category
AGRICULTURE, DAIRY & ANIMAL SCIENCE
JCR impact factor
2.566 (2012)
JCR rank
3/54 (2012)
JCR quartile
1 (2012)
ISSN
0022-0302
DOI
10.3168/jds.2011-4474
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2116486
handle
http://hdl.handle.net/1854/LU-2116486
date created
2012-05-29 09:51:59
date last changed
2012-09-28 15:20:57
@article{2116486,
  abstract     = {The aim of this experiment was to study the effects of feeding different linseed sources on omasal fatty acid (FA) flows, and plasma and milk FA profiles in dairy cows. Four ruminally cannulated lactating Holstein-Friesian cows were assigned to 4 dietary treatments in a 4 {\texttimes} 4 Latin square design. Dietary treatments consisted of supplementing crushed linseed (CL), extruded whole linseed (EL), formaldehyde-treated linseed oil (FL) and linseed oil in combination with marine algae rich in docosahexaenoic acid (DL). Each period in the Latin square design lasted 21 d, with the first 16 d for adaptation. Omasal flow was estimated by the omasal sampling technique using Cr-EDTA, Yb-acetate, and acid detergent lignin as digesta flow markers. The average DM intake was 20.6 {\textpm} 2.5 kg/d, C18:3n-3 intake was 341 {\textpm} 51 g/d, and milk yield was 32.0 {\textpm} 4.6 kg/d. Milk fat yield was lower for the DL treatment (0.96 kg/d) compared with the other linseed treatments (CL, 1.36 kg/d; EL, 1.49 kg/d; FL, 1.54 kg/d). Omasal flow of C18:3n-3 was higher and C18:3n-3 biohydrogenation was lower for the EL treatment (33.8 g/d; 90.9\%) compared with the CL (21.8 g/d; 94.0\%), FL (15.5 g/d; 95.4\%), and DL (4.6 g/d; 98.5\%) treatments, whereas whole-tract digestibility of crude fat was lower for the EL treatment (64.8\%) compared with the CL (71.3\%), FL (78.5\%), and DL (80.4\%) treatments. The proportion of C18:3n-3 (g/100 g of FA) was higher for the FL treatment compared with the other treatments in plasma triacylglycerols (FL, 3.60; CL, 1.22; EL, 1.35; DL, 1.12) and milk fat (FL, 3.19; CL, 0.87; EL, 0.83; DL, 0.46). Omasal flow and proportion of C18:0 in plasma and milk fat were lower, whereas omasal flow and proportions of biohydrogenation intermediates in plasma and milk fat were higher for the DL treatment compared with the other linseed treatments. The results demonstrate that feeding EL did not result in a higher C18:3n-3 proportion in plasma and milk fat despite the higher omasal C18:3n-3 flow. This was related to the decreased total-tract digestibility of crude fat. Feeding FL resulted in a higher C18:3n-3 proportion in plasma and milk fat, although the omasal C18:3n-3 flow was similar or lower than for the CL and EL treatment, respectively. Feeding DL inhibited biohydrogenation of trans-11,cis-15-C18:2 to C18:0, as indicated by the increased omasal flows and proportions of biohydrogenation intermediates in plasma and milk fat.},
  author       = {Sterk, A and Vlaeminck, Bruno and van Vuuren, M and Hendriks, WH and Dijkstra, J},
  issn         = {0022-0302},
  journal      = {JOURNAL OF DAIRY SCIENCE},
  keyword      = {biohydrogenation,CONJUGATED LINOLEIC ACIDS,docosahexaenoic acid,linseed,fatty acid,IN-VITRO,RUMEN FERMENTATION,INTESTINAL DIGESTIBILITY,RUMINAL BIOHYDROGENATION,EXTRUDED FLAXSEED,CONCENTRATE RATIO,LIPID-METABOLISM,SUNFLOWER OIL,DUODENAL FLOW},
  language     = {eng},
  number       = {6},
  pages        = {3149--3165},
  title        = {Effects of feeding different linseed sources on omasal fatty acid flows and fatty acid profiles of plasma and milk fat in lactating dairy cows},
  url          = {http://dx.doi.org/10.3168/jds.2011-4474},
  volume       = {95},
  year         = {2012},
}

Chicago
Sterk, A, Bruno Vlaeminck, M van Vuuren, WH Hendriks, and J Dijkstra. 2012. “Effects of Feeding Different Linseed Sources on Omasal Fatty Acid Flows and Fatty Acid Profiles of Plasma and Milk Fat in Lactating Dairy Cows.” Journal of Dairy Science 95 (6): 3149–3165.
APA
Sterk, A., Vlaeminck, B., van Vuuren, M., Hendriks, W., & Dijkstra, J. (2012). Effects of feeding different linseed sources on omasal fatty acid flows and fatty acid profiles of plasma and milk fat in lactating dairy cows. JOURNAL OF DAIRY SCIENCE, 95(6), 3149–3165.
Vancouver
1.
Sterk A, Vlaeminck B, van Vuuren M, Hendriks W, Dijkstra J. Effects of feeding different linseed sources on omasal fatty acid flows and fatty acid profiles of plasma and milk fat in lactating dairy cows. JOURNAL OF DAIRY SCIENCE. 2012;95(6):3149–65.
MLA
Sterk, A, Bruno Vlaeminck, M van Vuuren, et al. “Effects of Feeding Different Linseed Sources on Omasal Fatty Acid Flows and Fatty Acid Profiles of Plasma and Milk Fat in Lactating Dairy Cows.” JOURNAL OF DAIRY SCIENCE 95.6 (2012): 3149–3165. Print.