PMID- 20348369
OWN - NLM
STAT- MEDLINE
DCOM- 20101019
LR  - 20181201
IS  - 1525-3163 (Electronic)
IS  - 0021-8812 (Linking)
VI  - 88
IP  - 8
DP  - 2010 Aug
TI  - Effects of oil source and fish oil addition on ruminal biohydrogenation of fatty 
      acids and conjugated linoleic acid formation in beef steers fed finishing diets.
PG  - 2684-91
LID - 10.2527/jas.2009-2375 [doi]
AB  - Four Hereford steers (500 +/- 4.5 kg of BW) cannulated in the proximal duodenum 
      were used to evaluate the effects of vegetable oil source or fish oil quantity on 
      ruminal biohydrogenation (BH) and CLA outflow. Steers were fed 1 of 4 treatment 
      diets in a 2 x 2 factorial arrangement of treatments (oil source: canola vs. corn 
      oil; fish oil quantity: 0 or 1%) in a 4 x 4 Latin square design. The remainder of 
      the diet included chopped bermudagrass hay, dry-rolled corn, and protein/mineral 
      supplement. Duodenal samples were collected for 4 d after 11-d diet adaptation 
      periods. Data were analyzed with animal, period, oil source, fish oil, and 2-way 
      interaction among oil source and fish oil quantity in the model. All interactions 
      among oil source and fish oil inclusion were nonsignificant with the exception of 
      trans-11 vaccenic acid (TVA) and trans-9 octadecenoic acid. Intake and duodenal 
      flow of total long-chain fatty acids did not differ between treatments. Apparent 
      ruminal DM digestibility was not altered by oil source or fish oil inclusion. 
      Apparent ruminal digestion of fatty acids did not differ among oil sources but 
      was increased (P = 0.03) with fish oil supplementation. Ruminal BH of oleic and 
      linolenic acids was increased (P = 0.01) for diets containing supplemental canola 
      oil compared with corn oil. Ruminal BH of linoleic acid was greater (P = 0.01) 
      for diets containing supplemental corn oil compared with canola oil. Fish oil 
      addition reduced (P = 0.01) oleic acid BH but did not alter (P > 0.26) linoleic 
      or linolenic acid BH. Duodenal flow of palmitic acid was greater (P = 0.05) for 
      steers supplemented with corn oil compared with canola oil. Fish oil inclusion in 
      the diet increased (P = 0.01) flow of n-3 fatty acids (eicosapentaenoic acid, 
      docosapentaenoic acid, docosahexaenoic acid), trans-10 octadecenoic acid, 
      trans-12 octadecenoic acid, and cis-9, trans-11 CLA. Trans-9 octadecenoic acid 
      and TVA flows to the duodenum were increased (P = 0.01) when fish oil was 
      included in the canola oil-supplemented diet; however, no changes were observed 
      when fish oil was included in the corn oil-supplemented diet (P of interaction = 
      0.06 and 0.08). Fish oil inclusion increased the outflow of n-3 fatty acids, 
      trans-10 octadecenoic acid, and the majority of CLA isomers including cis-9, 
      trans-11. These results suggest that fish oil addition alters ruminal formation 
      of BH intermediates that is dependent on oil source supplemented in the diet.
FAU - Duckett, S K
AU  - Duckett SK
AD  - Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 
      29634, USA. sducket@clemson.edu
FAU - Gillis, M H
AU  - Gillis MH
LA  - eng
PT  - Journal Article
DEP - 20100326
PL  - United States
TA  - J Anim Sci
JT  - Journal of animal science
JID - 8003002
RN  - 0 (Fatty Acids)
RN  - 0 (Fatty Acids, Monounsaturated)
RN  - 0 (Fish Oils)
RN  - 0 (Plant Oils)
RN  - 0 (Rapeseed Oil)
RN  - 8001-30-7 (Corn Oil)
RN  - 9KJL21T0QJ (Linoleic Acid)
SB  - IM
MH  - Animal Feed
MH  - Animals
MH  - Cattle/*metabolism
MH  - Corn Oil/pharmacology
MH  - Diet/*veterinary
MH  - Dietary Supplements
MH  - Eating/drug effects
MH  - Fatty Acids/*metabolism
MH  - Fatty Acids, Monounsaturated/pharmacology
MH  - Fish Oils/*pharmacology
MH  - Hydrogenation/drug effects
MH  - Linoleic Acid/*metabolism
MH  - Male
MH  - Plant Oils/*pharmacology
MH  - Rapeseed Oil
MH  - Rumen/*metabolism
EDAT- 2010/03/30 06:00
MHDA- 2010/10/20 06:00
CRDT- 2010/03/30 06:00
PHST- 2010/03/30 06:00 [entrez]
PHST- 2010/03/30 06:00 [pubmed]
PHST- 2010/10/20 06:00 [medline]
AID - jas.2009-2375 [pii]
AID - 10.2527/jas.2009-2375 [doi]
PST - ppublish
SO  - J Anim Sci. 2010 Aug;88(8):2684-91. doi: 10.2527/jas.2009-2375. Epub 2010 Mar 26.