Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-27T19:53:04.508Z Has data issue: false hasContentIssue false
  • English
  • Français

Soaking of complete fattening rations high in poor roughage. 4. The effect on deposition and fatty acid composition of bovine fat†

Published online by Cambridge University Press:  02 September 2010

Z. Holzer ,
H. Tagari ,
D. Levy  and
R. Volcani
Z. Holzer
Affiliation:
Agricultural Research Organization, Nve Ya'ar Regional Experiment Station, Haifa, Israel
H. Tagari
Affiliation:
Agricultural Research Organization, Nve Ya'ar Regional Experiment Station, Haifa, Israel
D. Levy
Affiliation:
Agricultural Research Organization, Nve Ya'ar Regional Experiment Station, Haifa, Israel
R. Volcani
Affiliation:
Agricultural Research Organization, Nve Ya'ar Regional Experiment Station, Haifa, Israel
Get access

Summary

The effects of diets containing variable percentages of roughage and moisture on depot fats were studied. Treatments were 25 and 45% roughage in the complete fattening diet, and 10, 50 and 75% moisture content of the diets. Depot fats collected post-slaughter from kidney, pelvic, ruminal, cod and trim fats in the carcass (mostly subcutaneous and some intermuscular) were weighed and analysed for their fatty acid composition.

Increasing the quantity of roughage in the diet (from 25 to 45%) significantly decreased ruminal fat deposition. Moistening the feed significantly increased the deposition of kidney, pelvic and cod fat, and significantly reduced the deposition of fat trim in the carcass. The content of unsaturated triglyceride fatty acids was significantly greater in calves fed on the 25% roughage diet. Calves fed on the soaked diets had significantly higher contents of unsaturated fatty acids than the controls.

The content of unsaturated acids was greater in cod fat and carcass trim than in kidney, pelvic or ruminal fat.

Hydrogenation in vitro of fatty acids by ruminal micro-organisms decreased with increasing level of moisture in the diet.

It is suggested that the increased unsaturated fatty acid content of the depot fats of animals fed on soaked diets might be due to a reduction in the hydrogenation of dietary lipid by rumen micro-organisms.

Type
Research Article
Information
Animal Production , Volume 23 , Issue 2 , October 1976 , pp. 173 - 180
Copyright
Copyright © British Society of Animal Science 1976

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Bensadoun, A. and Reid, J. T. 1965. Effect of physical form, composition and level of intake of diet on the fatty acid composition of the sheep carcass. J. Nutr. 87: 239–244.CrossRefGoogle ScholarPubMed
Bloch, K., Baronowsky, P., Goldfine, H., Lennarz, W. Y., Light, R., Morris, A. T. and Scheuerbrandt, G. 1961. Biosynthesis and metabolism of unsaturated fatty acids. Fedn Proc. Fedn Am. Socs exp. Biol. 20: 921–927.Google Scholar
Cabezas, M. T., Hentges, J. F. Jr, Moore, J. E. and Olson, J. A. 1965. Effect of diet on fatty acid composition of body fat in steers. J. Anim. Sci. 24: 57–61.Google Scholar
Church, D. C., Ralston, A. T. and Kennick, W. H. 1967. Effect of diet or diethylstilbestrol on fatty acid composition of bovine tissue. J. Anim. Sci. 26: 1296–1301.CrossRefGoogle ScholarPubMed
Edwards, R. L., Tove, S. B., Blumer, T. N. and Barrick, E. R. 1961. Effects of added dietary fat on fatty acid composition and carcass characteristics of fattening steers. J. Anim. Sci. 20: 712–717.Google Scholar
Garton, G. A., Lough, A. K. and Vioque, E. 1961. Glyceride hydrolysis and glycerol fermentation by sheep rumen contents. J. gen. Microbiol. 25: 215–225.Google Scholar
Harris, R. V., Harris, P. and James, A. T. 1965. The fatty acid metabolism of Chlorella vulgaris. Biochim. biophys. Acta 106: 465–473.Google Scholar
Holzer, Z., Levy, D., Tagari, H. and Volcani, R. 1976a. Soaking of complete fattening rations high in poor roughage. 3. The effect of moisture content and spontaneous fermentation on the performance of male cattle. Anim. Prod. 22: 189–198.Google Scholar
Holzer, Z., Tagari, H., Levy, D. and Volcani, R. 1976b. Soaking of complete fattening rations high in poor roughage. 2. The effect of moisture content and of particle size of the roughage component on the performance of male cattle. Anim. Prod. 22: 41–53.Google Scholar
Kay, R. N. B. and Hobson, P. N. 1963. Reviews of the progress of dairy science. Section A. Physiology. J. Dairy Res. 30: 261–313.CrossRefGoogle Scholar
Korn, E. D., Greenblatt, C. L. and Lees, A. M. 1965. Synthesis of unsaturated fatty acids in the slime mold Physarum polycephalum and the zooflagellates Leishmania tarentolae, Trypanosoma lewisi, and Crithidia sp.: a comparative study. J. Lipid Res. 6: 43–50.Google Scholar
Kunsman, J. and Keeney, N. 1963. Effect of hay and grain on the fatty acid composition of milk fat. J. Dairy Sci. 46: 605 (Abstr.).Google Scholar
Lengemann, F. W. and Allen, N. N. 1959. Development of rumen function in the dairy calf. II. Effect of diet upon characteristics of the rumen flora and fauna of young calves. J. Dairy Sci. 42: 1171–1181.Google Scholar
Marchello, J. A., Dryden, F. D. and Hale, W. H. 1971. Bovine serum lipids. I. The influence of added animal fat to the ration. J. Anim. Sci. 32: 1008–1015.CrossRefGoogle Scholar
Ogilvie, B. M., McClymont, G. L. and Shorland, F. B. 1961. Effect of duodenal administration of highly unsaturated fatty acids on composition of ruminant depot fat. Nature, Lond. 190: 725–726.Google Scholar
Reiser, R. 1951. Hydrogenation of polyunsaturated fatty acids by the ruminant. Fedn. Proc. Fedn Am. Socs. exp. Biol. 10: 236 (Abstr.).Google Scholar
Roberts, W. K. and McKirdy, J. A. 1964. Weight gains, carcass fat characteristics and ration digestibility in steers affected by dietary rapeseed oil, sunflowerseed oil and animal tallow. J. Anim. Sci. 23: 682–687.Google Scholar
Schoenheimer, R. and Rittenberg, D. 1935. Deuterium as an indicator in the study of intermediary metabolism. III. The rôle of the fat tissues. J. biol. Chem. 111: 175–181.CrossRefGoogle Scholar
Shaw, J. C., Ensor, W. L., Tellechea, H. F. and Lee, S. D. 1960. Relation of diet to rumen volatile fatty acids, digestibility, efficiency of gain and degree of unsaturation of body fat in steers. J. Nutr. 71: 203–208.Google Scholar
Shorland, F. B. 1953. Animal fats: recent researches in the fats research laboratory, D.S.I.R., New Zealand. J. Sci. Fd Agric. 4: 497–503.CrossRefGoogle Scholar
Sklan, D., Budowski, P. and Volcani, R. 1972. Synthesis in vitro of linoleic acid by rumen liquor of calves. Br. J. Nutr. 28: 239–248.Google Scholar
Sklan, D., Volcani, R. and Budowski, P. 1971. Formation of octadecadienoic acid by rumen liquor of calves, cows and sheep in vitro. J. Dairy Sci. 54: 515–519.Google Scholar
Stamler, J. and Lilienfeld, A. M. 1970. Primary prevention of the atherosclerotic diseases. Circulation 42: A–55.Google Scholar
Tove, S. B. and Matrone, G. 1962. Effect of purified diets on the fatty acid composition of sheep tallow. J. Nutr. 76: 271–277.Google Scholar
Tove, S. B. and Mochrie, R. D. 1963. Effect of dietary and injected fat on the fatty acid composition of bovine depot fat and milk fat. J. Dairy Sci. 46: 686–689.CrossRefGoogle Scholar
Ulyatt, M. J., Czerkawski, J. W. and Blaxter, K. L. 1966. A technique for quantitative measurement of hydrogenation of long-chain fatty acids in the fore-stomachs of the sheep. Proc. Nutr. Soc. 25: xviii–xix.Google Scholar