Hassan,, N., Hanafy, M., Abdul Aziz, G., Ghandour, M. (2008). SOLUBILITY OF SOME MINERALS IN FEEDSTUFFS INCUBATED IN RUMEN OF BARKI SHEEP FED DIFFERENT TYPES OF DIET.. Journal of Animal and Poultry Production, 33(3), 1851-1862. doi: 10.21608/jappmu.2008.217765
N. I. Hassan,; M. A. Hanafy; G. M. Abdul Aziz; M. M. A. Ghandour. "SOLUBILITY OF SOME MINERALS IN FEEDSTUFFS INCUBATED IN RUMEN OF BARKI SHEEP FED DIFFERENT TYPES OF DIET.". Journal of Animal and Poultry Production, 33, 3, 2008, 1851-1862. doi: 10.21608/jappmu.2008.217765
Hassan,, N., Hanafy, M., Abdul Aziz, G., Ghandour, M. (2008). 'SOLUBILITY OF SOME MINERALS IN FEEDSTUFFS INCUBATED IN RUMEN OF BARKI SHEEP FED DIFFERENT TYPES OF DIET.', Journal of Animal and Poultry Production, 33(3), pp. 1851-1862. doi: 10.21608/jappmu.2008.217765
Hassan,, N., Hanafy, M., Abdul Aziz, G., Ghandour, M. SOLUBILITY OF SOME MINERALS IN FEEDSTUFFS INCUBATED IN RUMEN OF BARKI SHEEP FED DIFFERENT TYPES OF DIET.. Journal of Animal and Poultry Production, 2008; 33(3): 1851-1862. doi: 10.21608/jappmu.2008.217765
SOLUBILITY OF SOME MINERALS IN FEEDSTUFFS INCUBATED IN RUMEN OF BARKI SHEEP FED DIFFERENT TYPES OF DIET.
2Faculty of Agriculture, Cairo Univ., Giza, Egypt.
Abstract
The present experiment comprised two parts to study solubility of some macro-elements( Na, K, Ca and P) and some micro-elements ( Zn and Cu ) from some common Egyptian feedstuffs, berseem hay rice straw concentrate feed mixture and barley grains. In part one the feedstuffs were soaked in water for 15 minutes to determine mineral solubility. In Part two, feedstuffs were incubated for 72 hours in rumen of fistulated Barki sheep fed different roughage to concentrate ratios (70:30, 50:50, and 30:70). \ Results showed the following:
Soaking feedstuffs in water had a significant effect on the DM disappearance and minerals solubility . Sodium and potassium were the highest soluble among the macro-elements, while copper was more soluble than zinc.
Although there was no significant difference in solubility of most minerals among feedstuffs incubated in the rumen of sheep fed diets of different R/C ratios, zinc solubility tended to increase in high roughage diet.
There was significant difference in rumen fluid pH among experimental treatments. The VFA,s were higher in high concentrate diets ( and the difference was significant at 6 hours ). Moreover NH3-N concentration was not significantly different among diets, and tended to increase in high concentrate diet.
It could be concluded that, solubility of minerals may be affected by kind of element, fiber constituents of feedstuffs and rumen fluid pH.
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