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Effects of incremental amounts of extruded linseed on the milk fatty acid composition of dairy cows receiving hay or corn silage.
J Dairy Sci. 2013 Oct; 96(10):6577-95.JD

Abstract

The effect of supplementation of increasing amounts of extruded linseed in diets based on hay (H; experiment 1) or corn silage (CS; experiment 2) was investigated in regard to dairy performance and the milk fatty acid (FA) composition. In each experiment, 4 lactating multiparous Holstein cows were used in a 4 × 4 Latin square design (28-d periods). The cows were fed a diet (50:50 and 40:60 concentrate:forage ratio for experiments 1 and 2, respectively; dry matter basis) without supplementation (H0 or CS0) or supplemented with 5% (H5 or CS5), 10% (H10 or CS10), or 15% (H15 or CS15) of extruded linseed. Regardless of the forage type, diet supplementation with increasing amounts of extruded linseed had no effect on the dry matter intake, milk yield, or protein content or yield. In contrast, the milk fat content decreased progressively from H0 to H10 diets, and then decreased strongly with the H15 diet in response to increasing amounts of extruded linseed. For CS diets, the milk fat content initially decreased from CS0 to CS10, but then increased with the CS15 diet. For the H diets, the milk saturated FA decreased (-24.1g/100g of FA) linearly with increasing amounts of extruded linseed, whereas the milk monounsaturated FA (+19.0 g/100 g), polyunsaturated FA (+4.9 g/100 g), and total trans FA (+14.7 g/100 g) increased linearly. For the CS diets, the extent of the changes in the milk FA composition was generally lower than for the H diets. Milk 12:0 to 16:0 decreased in a similar manner in the 2 experiments with increasing amounts of extruded linseed intake, whereas 18:0 and cis-9 18:1 increased. The response of total trans 18:1 was slightly higher for the CS than H diets. The milk trans-10 18:1 content increased more with the CS than the H diets. The milk cis-9,trans-11 conjugated linoleic acid response to increasing amounts of extruded linseed intake was linear and curvilinear for the H diets, whereas it was only linear for the CS diets. The milk 18:3n-3 percentage increased in a similar logarithmic manner in the 2 experiments. It was concluded that the milk FA composition can be altered by extruded linseed supplementation with increasing concentrations of potentially health-beneficial FA (i.e., oleic acid, 18:3n-3, cis-9,trans-11 conjugated linoleic acid, and odd- and branched-chain FA) and decreasing concentrations of saturated FA. Extruded linseed supplementation increased the milk trans FA percentage.

Authors+Show Affiliations

INRA, UMRH 1213 Herbivores, F-63122 Saint-Genès-Champanelle, France, VetAgro Sup, UMR Herbivores, BP 10448 F-63000 Clermont-Ferrand, France. Electronic address: anne.ferlay@clermont.inra.fr.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

23972492

Citation

Ferlay, A, et al. "Effects of Incremental Amounts of Extruded Linseed On the Milk Fatty Acid Composition of Dairy Cows Receiving Hay or Corn Silage." Journal of Dairy Science, vol. 96, no. 10, 2013, pp. 6577-95.
Ferlay A, Doreau M, Martin C, et al. Effects of incremental amounts of extruded linseed on the milk fatty acid composition of dairy cows receiving hay or corn silage. J Dairy Sci. 2013;96(10):6577-95.
Ferlay, A., Doreau, M., Martin, C., & Chilliard, Y. (2013). Effects of incremental amounts of extruded linseed on the milk fatty acid composition of dairy cows receiving hay or corn silage. Journal of Dairy Science, 96(10), 6577-95. https://doi.org/10.3168/jds.2013-6562
Ferlay A, et al. Effects of Incremental Amounts of Extruded Linseed On the Milk Fatty Acid Composition of Dairy Cows Receiving Hay or Corn Silage. J Dairy Sci. 2013;96(10):6577-95. PubMed PMID: 23972492.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of incremental amounts of extruded linseed on the milk fatty acid composition of dairy cows receiving hay or corn silage. AU - Ferlay,A, AU - Doreau,M, AU - Martin,C, AU - Chilliard,Y, Y1 - 2013/08/21/ PY - 2013/01/09/received PY - 2013/07/04/accepted PY - 2013/8/27/entrez PY - 2013/8/27/pubmed PY - 2015/4/8/medline KW - dairy cow KW - extruded linseed KW - hay or corn silage KW - milk n-3 fatty acid SP - 6577 EP - 95 JF - Journal of dairy science JO - J Dairy Sci VL - 96 IS - 10 N2 - The effect of supplementation of increasing amounts of extruded linseed in diets based on hay (H; experiment 1) or corn silage (CS; experiment 2) was investigated in regard to dairy performance and the milk fatty acid (FA) composition. In each experiment, 4 lactating multiparous Holstein cows were used in a 4 × 4 Latin square design (28-d periods). The cows were fed a diet (50:50 and 40:60 concentrate:forage ratio for experiments 1 and 2, respectively; dry matter basis) without supplementation (H0 or CS0) or supplemented with 5% (H5 or CS5), 10% (H10 or CS10), or 15% (H15 or CS15) of extruded linseed. Regardless of the forage type, diet supplementation with increasing amounts of extruded linseed had no effect on the dry matter intake, milk yield, or protein content or yield. In contrast, the milk fat content decreased progressively from H0 to H10 diets, and then decreased strongly with the H15 diet in response to increasing amounts of extruded linseed. For CS diets, the milk fat content initially decreased from CS0 to CS10, but then increased with the CS15 diet. For the H diets, the milk saturated FA decreased (-24.1g/100g of FA) linearly with increasing amounts of extruded linseed, whereas the milk monounsaturated FA (+19.0 g/100 g), polyunsaturated FA (+4.9 g/100 g), and total trans FA (+14.7 g/100 g) increased linearly. For the CS diets, the extent of the changes in the milk FA composition was generally lower than for the H diets. Milk 12:0 to 16:0 decreased in a similar manner in the 2 experiments with increasing amounts of extruded linseed intake, whereas 18:0 and cis-9 18:1 increased. The response of total trans 18:1 was slightly higher for the CS than H diets. The milk trans-10 18:1 content increased more with the CS than the H diets. The milk cis-9,trans-11 conjugated linoleic acid response to increasing amounts of extruded linseed intake was linear and curvilinear for the H diets, whereas it was only linear for the CS diets. The milk 18:3n-3 percentage increased in a similar logarithmic manner in the 2 experiments. It was concluded that the milk FA composition can be altered by extruded linseed supplementation with increasing concentrations of potentially health-beneficial FA (i.e., oleic acid, 18:3n-3, cis-9,trans-11 conjugated linoleic acid, and odd- and branched-chain FA) and decreasing concentrations of saturated FA. Extruded linseed supplementation increased the milk trans FA percentage. SN - 1525-3198 UR - https://www.unboundmedicine.com/medline/citation/23972492/Effects_of_incremental_amounts_of_extruded_linseed_on_the_milk_fatty_acid_composition_of_dairy_cows_receiving_hay_or_corn_silage_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0022-0302(13)00584-5 DB - PRIME DP - Unbound Medicine ER -