NUTRITIVE POTENTIAL OF SOME BROWSE PLANTS GROWN UNDER THE EGYPTIAN DESERT CONDITIONS | ||||
| Journal of Animal and Poultry Production | ||||
| Article 11, Volume 33, Issue 7, July 2008, Page 5641-5650 PDF (468.09 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jappmu.2008.218905 | ||||
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| Authors | ||||
| H. AbdEl-Rahman, H.1; A. M. Kandil2; Fatma M. Salman1; M. I. Mohamed1 | ||||
| 1Dept. of Animal Production, National Res. Center, Dokki, Giza, Egypt. | ||||
| 2Dept. of Animal Production, Fac. of Agric., Al- Azhar Univ., Cairo, Egypt | ||||
| Abstract | ||||
| Browses plants leaves and stems from Kochia indica, Suaeda vera, Atriplex halimus, Tamarix mannifera, Halocnemum strobilaceum, Lygos raetam, Artemisia monosperma, Hammada elegans, Thymalaea hirsuta, Peganum harmala and Zygophillum album were evaluated for nutritive potential (chemical composition and degradability characteristics). Crude protein (CP), crude fiber (CF), ash, ether extract (EE), neutral detergent fiber (NDF), acid detergent fiber (ADF) and acid detergent lignin (ADL) were determined (on dry matter basis). Mean values of CP, CF, EE, ash, NFE, NDF, ADF and ADL for shrub species tested were 9.8%, 23.23%, 2.95%, 22.71%, 41.53%, 50.07%, 32.65% and 10.46%, respectively. Crude protein content ranged from 5.9% (Z.album) to 20.0% (P.harmala). Kochia indica and L.raetam had moderate CP content 14.0% and 10.5%, respectively). Zygophillum album had lowest NDF, ADF and ADL (30.2%, 18.3% and 3.5%), respectively comparable to A. halimus (63.5%, 43.9% and 13.8%), respectively. The content of macrominerals such as phosphorus (P), sodium (Na), calcium (Ca) and potassium (K) was also determined. In addition, manganese (Mn), Zinc (Zn), copper (Cu), iron (Fe) and magnesium (Mg) were measured as microminerals content. The shrubs showed varied values of macro and micro minerals content. In Vitro dry matter (DM) and organic matter (OM) degradability showed that K. indica, S. vera and H. strobilaceum had the highest values of DM and OM degradability (67.87% and 65.37%; 65.53% and 61.0%; 64.27% and 62.73%, respectively), compared with Z. album, T. hirsuta and P. harmala that had the lowest values (47.27% and 45.50%; 47.13% and 44.50%; 44.33 and 46.87%, respectively). The secondary metabolites, which are considered anti-nutritional defenses against grazing animals such as saponins, alkaloids, flavonoids, sterols, tannins and coumarine were analyzed qualitatively and were expressed as an indicator to their presence in these plants. The results showed that the tested plants varied in their contents of anti-nutritional factors. | ||||
| Keywords | ||||
| Browse plants; Chemical composition; Degradability characteristics; Anti-nutritional factors | ||||
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