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Milk Yield and Composition During Abomasal Infusion of Conjugated Linoleic Acids in Dairy Cows by P.Y. Chouinard; L. Corneau; A. Sæbø; D.E. Bauman is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Milk Yield and Composition During Abomasal Infusion of Conjugated Linoleic Acids in Dairy Cows about?

Conjugated linoleic acids refer to a mixture of positional and geometric isomers of linoleic acid with conjugated double bounds. Three supplements of conjugated linoleic acids which differed in isomer enrichment were infused into the abomasum of lactating dairy cows to determine postruminal effect on milk yield and composition. Four Holstein cows were used in a 4 × 4 Latin square design. Treatments were 3-d abomasal infusion of 1) control, 5 kg of skim milk (carrier for conjugated linoleic acid supplements), 2) conjugated linoleic acid supplement 1 (28.8 g/d; 6.9 g of cis/trans 9,11; 6.4 g of cis/trans 8,10), 3) conjugated linoleic acid supplement 2 (48.5 g/d; 7.1 g of cis/trans 9,11; 4.1 g of cis/trans 8,10; 8.3 g of cis/trans 10,12; 5.5 g of cis/trans 11,13), and 4) conjugated linoleic acid supplement 3 (16.3 g/d; 7.1 g of cis/trans 9,11; 7.2 g of cis/trans 10,12). Infusions increased the conjugated linoleic acids content of milk fat from 0.43 g/100 g of fat for the control treatment to 1.02, 1.52, and 0.95 g/100 g of fat for conjugated linoleic acid supplements 1, 2, and 3, respectively. Apparent efficiency of transfer in milk fat was 25.2, 33.5, 21.0, and 28.4% for cis/trans 8,

Who reads Milk Yield and Composition During Abomasal Infusion of Conjugated Linoleic Acids in Dairy Cows?

Author

P.Y. Chouinard; L. Corneau; A. Sæbø; D.E. Bauman

Publisher

American Dairy Science Association

Published

1999

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)