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Milk conjugated linoleic acid response to fish oil supplementation of diets differing in fatty acid profiles.
J Dairy Sci. 2003 Mar; 86(3):944-53.JD

Abstract

The objective of this experiment was to examine the effect of feeding fish oil (FO) along with fat sources that varied in their fatty acid compositions (high stearic, high oleic, high linoleic, or high linolenic acids) to determine which combination would lead to maximum conjugated linoleic acid (cis-9,trans-11 CLA) and transvaccenic acid (TVA) concentrations in milk fat. Twelve Holstein cows (eight multiparous and four primiparous cows) at 73 (+/- 32) DIM were used in a 4 x 4 Latin square with 4-wk periods. Treatment diets were 1) 1% FO plus 2% fat source high in stearic acid (HS), 2) 1% FO plus 2% fat from high oleic acid sunflower seeds (HO), 3) 1% FO plus 2% fat from high linoleic acid sunflower seeds (HLO), and 4) 1% FO plus 2% fat from flax seeds (high linolenic; HLN). Diets formulated to contain 18% crude protein were composed of 50% (dry basis) concentrate mix, 25% corn silage, 12.5% alfalfa haylage, and 12.5% alfalfa hay. Milk production (35.8, 36.3, 34.9, and 35.0 kg/d for diets 1 to 4) was similar for all diets. Milk fat percentages (3.14, 2.81, 2.66, and 3.08) and yields (1.13, 1.02, 0.93, and 1.08 kg/d) for diets 1 to 4 were lowest for HLO. Milk protein percentages (3.04, 3.03, 3.10, and 3.08) and dry matter intake (DMI) (25.8, 26.0, 26.2, and 26.2 kg/d) for diets 1 to 4 were similar for all diets. Milk cis-9,trans-11 CLA concentrations (0.70, 1.04, 1.70, and 1.06 g/100 g fatty acids) for diet 1 to 4 and yields (7.7, 10.7, 15.8, and 11.3 g/d) for diets 1 to 4 were greatest with HLO and were least with HS. Milk cis-9,trans-11 CLA concentrations and yields were similar for cows fed the HO and the HLN diets. Similar to milk cis-9,trans-11 CLA, milk TVA concentration (1.64, 2.49, 3.74, and 2.41 g/100 g fatty acids) for diets 1 to 4 was greatest with the HLO diet and least with the HS diet. Feeding a high linoleic acid fat source with fish oil most effectively increased concentrations and yields of milk cis-9,trans-11 CLA and TVA.

Authors+Show Affiliations

Dairy Science Department, South Dakota State University, Brookings 57007-0647, USA.No 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

12703631

Citation

AbuGhazaleh, A A., et al. "Milk Conjugated Linoleic Acid Response to Fish Oil Supplementation of Diets Differing in Fatty Acid Profiles." Journal of Dairy Science, vol. 86, no. 3, 2003, pp. 944-53.
AbuGhazaleh AA, Schingoethe DJ, Hippen AR, et al. Milk conjugated linoleic acid response to fish oil supplementation of diets differing in fatty acid profiles. J Dairy Sci. 2003;86(3):944-53.
AbuGhazaleh, A. A., Schingoethe, D. J., Hippen, A. R., & Kalscheur, K. F. (2003). Milk conjugated linoleic acid response to fish oil supplementation of diets differing in fatty acid profiles. Journal of Dairy Science, 86(3), 944-53.
AbuGhazaleh AA, et al. Milk Conjugated Linoleic Acid Response to Fish Oil Supplementation of Diets Differing in Fatty Acid Profiles. J Dairy Sci. 2003;86(3):944-53. PubMed PMID: 12703631.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Milk conjugated linoleic acid response to fish oil supplementation of diets differing in fatty acid profiles. AU - AbuGhazaleh,A A, AU - Schingoethe,D J, AU - Hippen,A R, AU - Kalscheur,K F, PY - 2003/4/22/pubmed PY - 2003/5/28/medline PY - 2003/4/22/entrez SP - 944 EP - 53 JF - Journal of dairy science JO - J Dairy Sci VL - 86 IS - 3 N2 - The objective of this experiment was to examine the effect of feeding fish oil (FO) along with fat sources that varied in their fatty acid compositions (high stearic, high oleic, high linoleic, or high linolenic acids) to determine which combination would lead to maximum conjugated linoleic acid (cis-9,trans-11 CLA) and transvaccenic acid (TVA) concentrations in milk fat. Twelve Holstein cows (eight multiparous and four primiparous cows) at 73 (+/- 32) DIM were used in a 4 x 4 Latin square with 4-wk periods. Treatment diets were 1) 1% FO plus 2% fat source high in stearic acid (HS), 2) 1% FO plus 2% fat from high oleic acid sunflower seeds (HO), 3) 1% FO plus 2% fat from high linoleic acid sunflower seeds (HLO), and 4) 1% FO plus 2% fat from flax seeds (high linolenic; HLN). Diets formulated to contain 18% crude protein were composed of 50% (dry basis) concentrate mix, 25% corn silage, 12.5% alfalfa haylage, and 12.5% alfalfa hay. Milk production (35.8, 36.3, 34.9, and 35.0 kg/d for diets 1 to 4) was similar for all diets. Milk fat percentages (3.14, 2.81, 2.66, and 3.08) and yields (1.13, 1.02, 0.93, and 1.08 kg/d) for diets 1 to 4 were lowest for HLO. Milk protein percentages (3.04, 3.03, 3.10, and 3.08) and dry matter intake (DMI) (25.8, 26.0, 26.2, and 26.2 kg/d) for diets 1 to 4 were similar for all diets. Milk cis-9,trans-11 CLA concentrations (0.70, 1.04, 1.70, and 1.06 g/100 g fatty acids) for diet 1 to 4 and yields (7.7, 10.7, 15.8, and 11.3 g/d) for diets 1 to 4 were greatest with HLO and were least with HS. Milk cis-9,trans-11 CLA concentrations and yields were similar for cows fed the HO and the HLN diets. Similar to milk cis-9,trans-11 CLA, milk TVA concentration (1.64, 2.49, 3.74, and 2.41 g/100 g fatty acids) for diets 1 to 4 was greatest with the HLO diet and least with the HS diet. Feeding a high linoleic acid fat source with fish oil most effectively increased concentrations and yields of milk cis-9,trans-11 CLA and TVA. SN - 0022-0302 UR - https://www.unboundmedicine.com/medline/citation/12703631/Milk_conjugated_linoleic_acid_response_to_fish_oil_supplementation_of_diets_differing_in_fatty_acid_profiles_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0022-0302(03)73677-7 DB - PRIME DP - Unbound Medicine ER -