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AbstractAl-Masri, M.R. and Mrdini, M. 2008. Nutritional and anti-nutritional components in Sesbania aculeataand Kochia indicaat different harvest times. J. Appl Anim. Res., 34: 33–37.Tannins level as total phenols (TP), condensed tannins (CT), hydrolysable tannins (HT), phytic acid (PA), cell-wall constituents [neutral-detergent fiber (NDF), acid-detergent fiber (ADF)], total nitrogen and nitrogen forms [buffer soluble nitrogen (BS-N) and non-protein nitrogen (BS-NPN)] were determined in leaves and stalks of Sesbania aculeateand Kochia indicaharvested 60, 90, 120 and 150 days after planting. The NDF, ADF, TP and HT concentrations significantly increased and BS-N, BS-NPN and total nitrogen concentrations significantly decreased at the late harvest stage of both S. aculeateand K. indica.Phytic acid and CT concentrations significantly increased with age of S. aculeata.The CT concentrations in K. indicawere notably low (0.05 g/kg DM) during the maturity stages. In both plant species, NDF and ADF concentrations were positively correlated with TP and HT but negatively correlated with BS-N, BS-NPN and total nitrogen. NDF and ADF concentrations were positively correlated with CT and PA for S. aculeatebut negatively correlated with PA for K. indica.Harvested plants at early maturity stage after 90 days of planting were judged to be nutritionally better for ruminants.

AbstractAl-Masri, M.R. 2006. Productive performance and digestive tract size of broiler chicks fed a conventional or an all vegetable ingredients diet. J. Appl. Anim. Res., 30: 81–84.Experiments were carried out to study the effect of feeding broiler chicks with added meat-bone meal (conventional diet) or without (vegetable diet) on feed efficiency (FE), metabolizable energy efficiency (MEE) and biological aspects of digestive organs during 1–53 days of chicks' age. The two diets had no significant (P<0.05) effects on FE and MEE. The FE values were positively correlated to the metabolizable energy consumption values (R=0.77). Changing from a diet containing meat-bone meal to an all vegetable ingredients had no negative effect on the biological aspects of broilers' digestive tract (relative weights of crop, proventriculus, gizzard, duodenum, jejunum, ileum, caeca, colon, pancreas and liver). An all vegetable diet is recommended for broiler production.

In vitroorganic matter apparent digestibility (IVOMAD), true digestibility (IVOMTD), metabolizable energy (ME), net energy lactation (NEL), microbial nitrogen (MN) and synthesis of microbial biomass (MBM) were estimated to predict the nutritive values of some agricultural by-products, drought-tolerant range plants and browses. The relationships between in vitrogas production (GP), and true or apparent digestibility, MN and MBM were studied utilizing an in vitroincubation technique. The values of IVOMAD, IVOMTD, ME, NEL, GP, MBM and MN varied with the studied experimental materials. The true fermentation of the outside part of Atriplex leucocladaproduced a higher volume of gas than the middle or the inside parts, and this was associated with an increase in the values of IVOMAD, IVOMTD, ME and NEL. However, screening off the wood from olive cake to obtain olive cake pulp increased the IVOMAD, IVOMTD, ME, NEL and the volume of gas production from the true fermented material. One ml of gas was generated from the true degradation of 5 mg of wheat straw, Moringa oleifera, Alhagi camelorum, Eucaliptus camaldulensisand A. leucoclada, from 11 mg of Prosopsis stephanianaand olive cake pulp, and from 20 mg of olive cake or olive cake wood. The amount of MN or MBM produced from 100 mg of truly fermented organic matter depended on the kind of the fermented material and amounted to 0.7–2.9 mg or 8–34 mg, respectively. Crude fibre was negatively correlated to IVOMAD, IVOMTD, ME and NEL. Gas production was positively correlated to IVOMAD and IVOMTD but negatively correlated to MBM and MN.