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Effects of dietary supplemental fish oil during the peripartum period on blood metabolites and hepatic fatty acid compositions and total triacylglycerol concentrations of multiparous Holstein cows.
J Dairy Sci. 2009 Feb; 92(2):657-69.JD

Abstract

The objectives were to evaluate the effects of dietary fish oil on plasma metabolite, hepatic fatty acid composition, and total triacylglycerol concentrations. Multiparous Holstein cows (n = 42) were completely randomized to 1 of 3 treatments at 3 wk prepartum. Treatments were no supplemental lipid or supplemental lipid from either Energy Booster (Milk Specialties Co., Dundee, IL) or fish oil. Treatment diets were fed from -21 d relative to expected date of parturition until 10 d postpartum. Treatments were fed as a bolus before the a.m. feeding. The dose of lipid fed during the prepartum period was 250 g, whereas approximately 0.92% of the previous day's dry matter intake was supplemented postpartum. Blood was collected 3 times weekly for determination of plasma metabolites. Liver biopsies were performed at 21 and 10 d before expected date of parturition and 1 and 14 d after parturition to determine fatty acid compositions and total triacylglycerol concentrations. Dry matter intake, milk yield, and loss of body weight or body condition score were not affected by supplementing the diet with lipid or by the source of lipid. Supplemental lipid tended to increase plasma glucose and decrease nonesterified fatty acids during the postpartum period. Furthermore, plasma beta-hydroxybutyrate was reduced during the postpartum period in the lipid-supplemented treatments. However, source of supplemental lipid had no influence on any blood metabolite. Supplemental fish oil altered the fatty acid composition of liver phospholipids and triacylglycerols, decreasing total saturated fatty acids and increasing total n-3 and long-chain polyunsaturated fatty acids (>20 carbon fatty acids). Despite the altered fatty acid composition, hepatic total triacylglycerol concentrations were unaffected by supplemental fish oil. Furthermore, the improved metabolic profile following lipid supplementation did not decrease hepatic total triacylglycerol concentrations.

Authors+Show Affiliations

Department of Animal Science and Nutritional Biology Graduate Group, University of California, Davis 95616, USA. michael.ballou@ttu.eduNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19164678

Citation

Ballou, M A., et al. "Effects of Dietary Supplemental Fish Oil During the Peripartum Period On Blood Metabolites and Hepatic Fatty Acid Compositions and Total Triacylglycerol Concentrations of Multiparous Holstein Cows." Journal of Dairy Science, vol. 92, no. 2, 2009, pp. 657-69.
Ballou MA, Gomes RC, Juchem SO, et al. Effects of dietary supplemental fish oil during the peripartum period on blood metabolites and hepatic fatty acid compositions and total triacylglycerol concentrations of multiparous Holstein cows. J Dairy Sci. 2009;92(2):657-69.
Ballou, M. A., Gomes, R. C., Juchem, S. O., & DePeters, E. J. (2009). Effects of dietary supplemental fish oil during the peripartum period on blood metabolites and hepatic fatty acid compositions and total triacylglycerol concentrations of multiparous Holstein cows. Journal of Dairy Science, 92(2), 657-69. https://doi.org/10.3168/jds.2008-1196
Ballou MA, et al. Effects of Dietary Supplemental Fish Oil During the Peripartum Period On Blood Metabolites and Hepatic Fatty Acid Compositions and Total Triacylglycerol Concentrations of Multiparous Holstein Cows. J Dairy Sci. 2009;92(2):657-69. PubMed PMID: 19164678.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of dietary supplemental fish oil during the peripartum period on blood metabolites and hepatic fatty acid compositions and total triacylglycerol concentrations of multiparous Holstein cows. AU - Ballou,M A, AU - Gomes,R C, AU - Juchem,S O, AU - DePeters,E J, PY - 2009/1/24/entrez PY - 2009/1/24/pubmed PY - 2009/2/10/medline SP - 657 EP - 69 JF - Journal of dairy science JO - J Dairy Sci VL - 92 IS - 2 N2 - The objectives were to evaluate the effects of dietary fish oil on plasma metabolite, hepatic fatty acid composition, and total triacylglycerol concentrations. Multiparous Holstein cows (n = 42) were completely randomized to 1 of 3 treatments at 3 wk prepartum. Treatments were no supplemental lipid or supplemental lipid from either Energy Booster (Milk Specialties Co., Dundee, IL) or fish oil. Treatment diets were fed from -21 d relative to expected date of parturition until 10 d postpartum. Treatments were fed as a bolus before the a.m. feeding. The dose of lipid fed during the prepartum period was 250 g, whereas approximately 0.92% of the previous day's dry matter intake was supplemented postpartum. Blood was collected 3 times weekly for determination of plasma metabolites. Liver biopsies were performed at 21 and 10 d before expected date of parturition and 1 and 14 d after parturition to determine fatty acid compositions and total triacylglycerol concentrations. Dry matter intake, milk yield, and loss of body weight or body condition score were not affected by supplementing the diet with lipid or by the source of lipid. Supplemental lipid tended to increase plasma glucose and decrease nonesterified fatty acids during the postpartum period. Furthermore, plasma beta-hydroxybutyrate was reduced during the postpartum period in the lipid-supplemented treatments. However, source of supplemental lipid had no influence on any blood metabolite. Supplemental fish oil altered the fatty acid composition of liver phospholipids and triacylglycerols, decreasing total saturated fatty acids and increasing total n-3 and long-chain polyunsaturated fatty acids (>20 carbon fatty acids). Despite the altered fatty acid composition, hepatic total triacylglycerol concentrations were unaffected by supplemental fish oil. Furthermore, the improved metabolic profile following lipid supplementation did not decrease hepatic total triacylglycerol concentrations. SN - 1525-3198 UR - https://www.unboundmedicine.com/medline/citation/19164678/Effects_of_dietary_supplemental_fish_oil_during_the_peripartum_period_on_blood_metabolites_and_hepatic_fatty_acid_compositions_and_total_triacylglycerol_concentrations_of_multiparous_Holstein_cows_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0022-0302(09)70372-8 DB - PRIME DP - Unbound Medicine ER -