Wykorzystanie alg morskich w modyfikacji profilu kwasów tłuszczowych mleka krów

• Autorzy: Kupczynski R. , Janeczek W. , Kinal S. , Kuczaj M.

Warianty tytułu

EN

Possibility of modifying the fatty acid profile of cow’s milk: marine algae application

• Języki publikacji: PL

Abstrakty

EN

Marine algae contain polyunsaturated fatty acids (PUFA), including docosahexaenoic acid (DHA). It was observed that microalgae inhibited the development of protozoa and/or bacteria in the rumen, lowered the total VFA content and the ratio of non-glucogenic volatile acids to glucogenic ones. In research conducted in vitro, microalgae of Schizochytrium sp. inhibited the biohydrogenation of linolenic and linoleic acids, leading to an increase in trans-C 18:1 isomers and DHA. The introduction of microalgae into cows’ diet led to a significant increase in the content of cis-9, trans-11 CLA isomers, EPA and DHA in milk fat. The concentration of CLA in milk fat increased more rapidly than that of DHA. The coefficient of DHA transfer to milk ranged from 5.5% (unprotected algae) to 8.4% (protected ones). Microalgae may be used as an alternative to fish oil in dairy cows’ diets, modifying biohydrogenation processes in the rumen, increasing the content of cis-9, trans-11 CLA in milk, and decreasing the ratio of n-6 to n-3 acids in milk fat.

Słowa kluczowe

PL

bydlo; krowy mleczne; mleko; tluszcz mlekowy; kwasy tluszczowe; sklad kwasow tluszczowych; modyfikacja skladu kwasow tluszczowych; sprzezony kwas linolowy; kwasy tluszczowe n-3; zywienie zwierzat; dodatki paszowe; mikroalgi; Schizochytrium; Crypthecodinium cohnii; zwacz; procesy fermentacyjne

• Wydawca: -
• Czasopismo: Medycyna Weterynaryjna
• Rocznik: 2011
• Tom: 67
• Numer: 05
• Opis fizyczny: s.304-308,rys.,tab.,bibliogr.

Twórcy

autor

Kupczynski R.

• Zakład Higieny Środowiska i Dobrostanu Zwierząt, Wydział Biologii i Hodowli Zwierząt, Uniwersytet Przyrodniczy we Wrocławiu, ul.Chełmońskiego 38 C, 51-630 Wrocław

autor

Janeczek W.

autor

Kinal S.

autor

Kuczaj M.

Bibliografia

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