Effects of feeding camelina (seeds or meal) on milk fatty acid composition and butter spreadability.

Effects of feeding camelina (seeds or meal) on milk fatty acid composition and butter spreadability. Research Abstract Details 

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Effects of feeding camelina (seeds or meal) on milk fatty acid composition and butter spreadability. Abstract Text:

C Hurtaud,J L Peyraud,

The nutritional and rheological properties of butter depend on the fatty acid composition of milk. Therefore, feeding oilseeds rich in unsaturated fatty acids is likely to affect butter properties. The aim of this trial was to examine to what extent feeding the linolenic acid-rich cruciferous plant camelina can affect the fatty acid composition of dairy products and the properties of butter. A control diet composed of 60% corn silage-based ration and completed with high-energy and nitrogenous concentrates was compared with 2 experimental diets designed to provide the same amount of polyunsaturated fatty acids via either camelina seed (630 g/d, CS diet) or camelina meal (2 kg/d, CM diet). The diets were isoenergetic and isonitrogenous. The trial followed a double 3 x 3 Latin-square design with 4-wk periods on 6 Holstein dairy cows. The camelina diets tended to decrease dry matter intake but did not have a significant effect on milk production. They generated a slight decrease in milk protein and a strong decrease in milk fat yield and content. The CM diet led to a stronger decrease in fat content. Camelina generated a greater proportion of monounsaturated fatty acids, notably C18:1 trans isomers, including trans-10 and trans-11 C18:1, which increased by 11.0- and 2.6-fold, respectively, with the CM diet. Camelina also led to an increase in conjugated linoleic acids, particularly rumenic acid, cis-9, trans-11 C18:2. Camelina did not affect parameters of buttermaking except churning time with milk from CM fed cows, which was longer. The butters of camelina diets were softer at all temperatures tested, especially with the CM diet. In conclusion, feeding camelina can modify milk fatty acid profile and butter spreadability.

Effects of feeding camelina (seeds or meal) on milk fatty acid composition and butter spreadability. Publishing Authors By Initials

C Hurtaud,JL Peyraud,

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Effects of feeding camelina (seeds or meal) on milk fatty acid composition and butter spreadability. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of dairy science

VOLUME: 90

Page Numbers: 5134-45

Journal Abbreviation: J. Dairy Sci.

ISSN: 1525-3198

DAY: 23

MONTH: Nov

YEAR: 2007

Effects of feeding camelina (seeds or meal) on milk fatty acid composition and butter spreadability. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Effects of feeding camelina (seeds or meal) on milk fatty acid composition and butter spreadability.

AFFILIATION: INRA, Agrocampus Rennes, UMR1080, Production du Lait, F-35590 St-Gilles, France. Catherine.Hurtaud@rennes.inra.fr

Country: United States

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MEDLINETA: J Dairy Sci

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