Effect of C18-polyunsaturated fatty acids on their direct incorporation into the rumen bacterial lipids and CLA production in vitro

Asian-Australasian Journal of Animal Sciences

Volumn 18, Issue 4, 2005, Pages 512-515

  Choi, S H ^a   Song, M K ^a  

^a Chungbuk National University   (South Korea)

Author keywords

Bio hydrogenation; CLA; Linoleic Acid; Linolenic Acid; Rumen Bacteria

Indexed keywords

BACTERIA (MICROORGANISMS);

EID: 16244417807     PISSN: 10112367     EISSN: None     Source Type: Journal    
DOI: 10.5713/ajas.2005.512     Document Type: Article

References (15)

1. Bessa, R. J., J. Santos-Silva, J. M. Ribeiro and A. V. Portugal. 2000. Reticulo-rumen biohydrogenation and the enrichment of ruminal edible products with linoleic acid conjugated isomers. Appl. Environ. Microbiol. 63:201-211.
2. Bryant, M. P. and I. M. Robinson. 1961. An improved nonselective medium for ruminal bacteria and its use in determining diurnal variation in numbers of bacteria in the rumen. J. Dairy Sci. 44:1446-1454.
3. Fawcett, J. K. and J. E. Scott. 1960. A rapid and precise method for the determination of urea. J. Clin. Pathol. 13:156-163.
4. Folch, J., M. Lee and G. H. Sloan-Stanley. 1957. A simple method for the isolation and purification of total lipids from animal tissue. J. Biol. Chem. 226:497-509.
5. Harfoot, C. G. and G. P. Hazlewood. 1988. Lipid metabolism in the rumen. p. 285-322 in The rumen microbial ecosystem (Ed. P. N. Hobson) Elsevier Appl. Sci. London and New York.
6. Kelly, M. L., J. R. Berry, D. R. Dwyer, J. M. Griinari, P. Y. Chouinard, M. E. Van Amburgh and D. E. Bauman. 1998. Dietary fatty acid sources affect conjugated linoleic acid concentrations in milk from lactating dairy cows. J. Nutr. 128:881-885.
7. Knight, R., J. D. Sutton, J. E. Storry and P. E. Brumby. 1979. Rumen microbial synthesis of long-chain fatty acids. Proc. Nutr. Soc. 38:4A.
8. Lepage, G. and C. C. Roy. 1986. Direct transesterification of all classes of lipid in a one-step reaction. J. Lipid Research. 27:114-121.
9. McDougall, E. I. 1948. Studies on ruminant saliva. 1. The composition and output of sheeps saliva. Biochem. J. 43:99-109.
10. SAS. 1985. SAS User's Guide: Statistical Analysis Systems Institute, Inc., Cary, NC.
11. Steel, R. G. D. and J. H. Torrie. 1980. Principles and Procedures of Statistics. Mcgraw Hill Book Co., NY.
12. Wang, J. H., M. K. Song, Y. S. Son and M. B. Chang. 2002a. Effect of concentrate level on the formation of conjugated linoleic acid and trans-octadecenoic acid by ruminal bacteria when incubated with oilseed. Asian-Aust. J. Anim. Sci. 15:687-694.
13. Wang, J. H., M. K. Song, Y. S. Son and M. B. Chang. 2002b. Addition effect of seed-associated or free linseed oil on the formation of cis-9, trans-11 conjugated linoleic acid and octadecenoic acid by ruminal bacteria in vitro. Asian-Aust. J. Anim. Sci. 15:1115-1120.
14. Wang, J. H., S. H. Choi and M. K. Song. 2003. Effects of concentrate to roughage ratio on the formation of cis-9, trans-11 CLA and trans-11 octadecenoic acid in rumen fluid and plasma of sheep when fed high oleic or high linoleic acid oils. Asian-Aust. J. Anim. Sci. 16:1604-1609.
15. Wang, J. H., S. H. Choi, C. G. Yan and M. K. Song. 2005. Effect of monensin and fish oil supplementation on biohydrogenation and CLA production by rumen bacteria in vitro when incubated with safflower oil. Asian-Aust. J. Anim. Sci. 18:221-225.