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Soaking of complete fattening rations high in poor roughage 3. The effect of moisture content and spontaneous fermentation on the performance of male cattle†

Published online by Cambridge University Press:  02 September 2010

Z. Holzer ,
D. Levy ,
H. Tagari  and
R. Volcani
Z. Holzer
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
H. Tagari
Affiliation:
Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
R. Volcani
Affiliation:
Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
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Summary

Two trials were conducted with two complete fattening diets contain- ing 25 and 45 % fibrous roughage, to examine the effects of three moisture levels and five soaking conditions on the performance and ruminal fermentation of fattening cattle.

Differences between treatments in live-weight gain and carcass-weight gain were not significant but there were differences in the efficiency of conversion of metabolizable energy into live weight and into carcass weight and in some instances these were significant. There was a trend towards increased weight of kidney, pelvic and cod fats and a slight decrease in weight of other fat trim of the carcass (subcutaneous and intermuscular) on the treated diets, as compared with the dry control diet.

The pH of the rumen liquor of animals given the soaked rations was lower and the total volatile fatty acid concentration higher than that of animals receiving the dry control diet. The propionic acid concentration in rumen liquor was significantly higher in animals receiving moistened diets.

Type
Research Article
Information
Animal Production , Volume 22 , Issue 2 , April 1976 , pp. 189 - 198
Copyright
Copyright © British Society of Animal Science 1976

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References

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