Effects of abomasal infusion of essential fatty acids and conjugated linoleic acid on performance and fatty acid, antioxidative, and inflammatory status in dairy cows

Haubold, S.; Kröger-Koch, C.; Starke, A.; Tuchscherer, A.; Tröscher, A.; Kienberger, H.; Rychlik, M.; Bernabucci, U.; Trevisi, E.; Hammon, H.M.

doi:10.3168/jds.2019-17135

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Title:: Effects of abomasal infusion of essential fatty acids and conjugated linoleic acid on performance and fatty acid, antioxidative, and inflammatory status in dairy cows
Document type:: Zeitschriftenaufsatz
Author(s):: Haubold, S.; Kröger-Koch, C.; Starke, A.; Tuchscherer, A.; Tröscher, A.; Kienberger, H.; Rychlik, M.; Bernabucci, U.; Trevisi, E.; Hammon, H.M.
Abstract:: The objective of this study was to test the effects of essential fatty acids (EFA), particularly α-linolenic acid, and conjugated linoleic acid (CLA) supplementation on fatty acid (FA) composition, performance, and systemic and hepatic antioxidative and inflammatory responses in dairy cows. Four cows (126 ± 4 d in milk) were investigated in a 4 × 4 Latin square and were abomasally infused with 1 of the following for 6 wk: (1) coconut oil (control treatment, CTRL; 38.3 g/d; providing saturated FA), (2) linseed and safflower oil (EFA treatment; 39.1 and 1.6 g/d, respectively; providing mainly α-linolenic acid), (3) Lutalin (BASF, Ludwigshafen, Germany; CLA treatment; cis-9,trans-11 and trans-10,cis-12 CLA, 4.6 g/d each), (4) or EFA+CLA. The initial dosage was doubled every 2 wk, resulting in 3 dosages (dosage 1, 2, and 3). Cows were fed a corn silage-based total mixed ration with a high n-6/n-3 FA ratio. Dry matter intake and milk yield were recorded daily, and milk composition was measured weekly. The FA compositions of milk fat and blood plasma were analyzed at wk 0, 2, 4, and 6. The plasma concentration and hepatic mRNA abundance of parameters linked to the antioxidative and inflammatory response were analyzed at wk 0 and 6 of each treatment period. Infused FA increased in blood plasma and milk of the respective treatment groups in a dose-dependent manner. The n-6/n-3 FA ratio in milk fat was higher in CTRL and CLA than in EFA and EFA+CLA. The sum of FA
Keywords:: BayBioMS; conjugated linoleic acid; dairy cow; essential fatty acid; inflammatory status
Journal title:: Journal of Dairy Science
Year:: 2019
Fulltext / DOI:: doi:10.3168/jds.2019-17135
Publisher:: American Dairy Science Association
E-ISSN:: 0022-0302
Date of publication:: 01.11.2019
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mediaTUM Gesamtbestand Einrichtungen Schools TUM School of Life Sciences Zentren Bayerisches Zentrum für Biomolekulare Massenspektrometrie (BayBioMS)Jahr 2019

mediaTUM Gesamtbestand Hochschulbibliographie 2019 Fakultäten Wissenschaftszentrum Weihenstephan Bayerisches Zentrum für Biomolekulare Massenspektrometrie (BayBioMS)