Linseed, fish and microalgae are important sources of ù3 polyunsaturated fatty acids. However, the omega3 fatty acid supplied by linseed is the alfa-linolenic acid (LNA; C18:3n3), which is poorly converted to the longer chain n3 fatty acids by humans and poultry. Conversely, fish and microalgae supply directly long chain n3 PUFAs, particularly the eicosapentaenoic acid (EPA, C20:5n3) and the docosahexaenoic acid (DHA, C22:6n3). In this study, marine unicellular alga Crypthecodinium cohnii was used to increase the DHA content of breast meat of female Muscovy ducks. A control diet and the same diet supplemented with 0.5% dried microalga were supplied to the ducks during the last three weeks of life. Ducks fed on the diet supplemented with microalga showed a significantly higher DHA content in breast muscle and liver than the control group. No significant differences were observed in oxidative stability of breast meat between the thesis.
Influence of Microalgae Dietary Administration on ω3 LC-PUFAs Meat Content of Muscovy Duck
MARZONI FECIA DI COSSATO, MARGHERITA;ROMBOLI, ISABELLA
2003-01-01
Abstract
Linseed, fish and microalgae are important sources of ù3 polyunsaturated fatty acids. However, the omega3 fatty acid supplied by linseed is the alfa-linolenic acid (LNA; C18:3n3), which is poorly converted to the longer chain n3 fatty acids by humans and poultry. Conversely, fish and microalgae supply directly long chain n3 PUFAs, particularly the eicosapentaenoic acid (EPA, C20:5n3) and the docosahexaenoic acid (DHA, C22:6n3). In this study, marine unicellular alga Crypthecodinium cohnii was used to increase the DHA content of breast meat of female Muscovy ducks. A control diet and the same diet supplemented with 0.5% dried microalga were supplied to the ducks during the last three weeks of life. Ducks fed on the diet supplemented with microalga showed a significantly higher DHA content in breast muscle and liver than the control group. No significant differences were observed in oxidative stability of breast meat between the thesis.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
