2011
DOI: 10.20870/productions-animales.2011.24.5.3274
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Avant-propos

Abstract: Les impacts environnementaux liés aux productions animales sont pris en considération depuisau moins deux décennies. Mais jusqu’à une date récente, ils étaient considérés comme des «dommagescollatéraux» résultant de la nécessité de nourrir la planète. Depuis le rapport de la FAO«Livestock’s long shadow» (Steinfeld et al 2006), les préoccupations environnementales liées enparticulier aux gaz à effet de serre (GES) ont pris une importance croissante auprès des acteursdes filières animales et des décideurs politi… Show more

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Cited by 2 publications
(2 citation statements)
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“…The FO diet in present study provided specifically C20:5n-3 (EPA), C22:6n-3 (DHA), and C22:5n-3 (DPA), which were found in both TG and FFA plasma classes, and that were also present in ruminal fluid and milk of the same animals. [13,14] This suggests that, even though these FA have high ruminal biohydrogenation rates, [14,31] they have been transferred in part from the digestive tract to the plasma TG and FFA fractions and have been taken up by MG either by passive diffusion of FFA or by the action of LPL on the circulating TG in the VLDL and CM. Moreover, it is probable that the n-3 PUFA that escaped ruminal biohydrogenation were mostly esterified on the CE and PL, as previously shown by Offer et al [30] In line with this hypothesis, in the present experiment, the rates of apparent transfer of EPA and DHA from diet to milk were low (3.2 and 4.7%, respectively).…”
Section: Discussionmentioning
confidence: 99%
“…The FO diet in present study provided specifically C20:5n-3 (EPA), C22:6n-3 (DHA), and C22:5n-3 (DPA), which were found in both TG and FFA plasma classes, and that were also present in ruminal fluid and milk of the same animals. [13,14] This suggests that, even though these FA have high ruminal biohydrogenation rates, [14,31] they have been transferred in part from the digestive tract to the plasma TG and FFA fractions and have been taken up by MG either by passive diffusion of FFA or by the action of LPL on the circulating TG in the VLDL and CM. Moreover, it is probable that the n-3 PUFA that escaped ruminal biohydrogenation were mostly esterified on the CE and PL, as previously shown by Offer et al [30] In line with this hypothesis, in the present experiment, the rates of apparent transfer of EPA and DHA from diet to milk were low (3.2 and 4.7%, respectively).…”
Section: Discussionmentioning
confidence: 99%
“…Les dysservices sont déjà partiellement abordés et quantifiés dans de nombreuses études, en particulier concernant la dégradation de la qualité environnementale (e.g. Bonneau et al 2008, Gerber et al 2009, Doreau et al 2011, Teillard et al 2012. Ces études ne prennent d'ailleurs pas en compte la notion de services au regard des dysservices considérés.…”
Section: B) Des Dysservices à Considérer Dans Des Développements Futursunclassified