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Feeding calcium soaps of fatty acids to lactating cows: effect on production, body condition and blood lipids

Published online by Cambridge University Press:  01 June 2009

David Sklan ,
Eytan Bogin ,
Yaakov Avidar  and
Shai Gur-Arie
David Sklan
Affiliation:
Faculty of Agriculture, Hebrew University, PO Box 12, Rehovot, 76–100, Israel
Eytan Bogin
Affiliation:
Department of Biochemistry, Kimron Veterinary Institute, Bet Dagan, Israel
Yaakov Avidar
Affiliation:
Department of Biochemistry, Kimron Veterinary Institute, Bet Dagan, Israel
Shai Gur-Arie
Affiliation:
Koffolk (1949) Ltd, Petach-Tikva, Israel
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Summary

Ca soaps of fatty acids (CSFA, 0·5 kg/d) were added to the diet of lactating cows for 170 d, and production, body condition score and blood lipids were examined.

Production of fat-corrected milk was increased by 1·5 kg/d owing to increase in both milk and fat production. Over 250 d lactation, production of fat-corrected milk was enhanced by 1·3 kg/d. Body condition scores were lower in cows fed CSFA in early lactation, but tended to exceed those of control cows after 80 d lactation. Reproductive performance was improved in cows fed CSFA.

Serum total lipids, phospholipids and cholesterol were increased in CSFA cows at 15 and 29 d but not at 59 d post partum. The cholesterol increase was mainly in the high density lipoprotein fraction.

Type
Original articles
Information
Journal of Dairy Research , Volume 56 , Issue 5 , November 1989 , pp. 675 - 681
Copyright
Copyright © Proprietors of Journal of Dairy Research 1989

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