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Use of formaldehyde and lignosulfonate treated flaxseed and linola to alter fatty acid composition and increase omega-3-fatty acids in the milk fat of dairy cows

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dc.contributor.author Goodridge, Jane Margaret en_US
dc.date.accessioned 2007-05-15T19:06:30Z
dc.date.available 2007-05-15T19:06:30Z
dc.date.issued 1997-12-01T00:00:00Z en_US
dc.identifier.uri http://hdl.handle.net/1993/1233
dc.description.abstract In the first experiment, two multiparous and two primiparous Holstein cows in midlactation were randomly assigned to four diets in a 4 x 4 Latin square design. Diets consisted of total mixed ration (TMR) plus (i) 0% added fat-Control, (ii) Linola, a low linolenic (C18:3), high linoleic (C18:2) variety of Solin at 400-450 9 fat per kg milk fat produced, (iii) flaxseed at 200-225 g fat per kg milk fat produced (FL) and (iv) flaxseed at 400-450 g fat per kg milk fat produced (FH). The high level of supplemental fat provided approximately 123 g C18:3 to the milk fat, representing a theoretical value of 10% C18:3, assuming an average production of 36 kg milk with 3.4% fat. In the second experiment, four Holstein primiparous cows in midlactation were randomly assigned to a 4 x 4 Latin square. Diets consisted of TMR top dressed with (i) 0% added fat, Control, (ii) formaldehyde treated flaxseed (FH) at 1.64 kg, (iii) low level lignosulfonate treated flaxseed at 0.57 kg (LL) and (iv) high level of lignosulfonate treated flaxseed at 1.14 kg (LH). Approximately 377 g fat, 193 g fat and 386 g of fat were provided by the top dress. The flaxseed was treated with lignosulfonate by EXL Milling (Hassall, Sask.), ground and heated to 155$\sp\circ$C and steeped for 30 minutes at a beginning temperature of 124$\sp\circ$C and an end temperature of 118$\sp\circ$C. (Abstract shortened by UMI.) en_US
dc.format.extent 8127810 bytes
dc.format.extent 184 bytes
dc.format.mimetype application/pdf
dc.format.mimetype text/plain
dc.language en en_US
dc.language.iso en_US
dc.rights info:eu-repo/semantics/openAccess
dc.title Use of formaldehyde and lignosulfonate treated flaxseed and linola to alter fatty acid composition and increase omega-3-fatty acids in the milk fat of dairy cows en_US
dc.type info:eu-repo/semantics/masterThesis
dc.type master thesis en_US
dc.degree.discipline nimal Science en_US
dc.degree.level Master of Science (M.Sc.) en_US


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