Journal ArticleDOI
The prediction of the nutritive value of animal feeds from chemical analyses.
M. A. Naga,K. El-Shazly +1 more
TLDR
In this article, a protein index for animal feeds is suggested as a basis for the criteria relating nutritive value to chemical composition, and regression equations for predicting the nutritive values gave a reasonable level of accuracy (0·18−14·74% error).Abstract:
A protein index for animal feeds is suggested as a basis for the criteria relating nutritive value to chemical composition. The feeds were classified into four main groups: legumes, non-legumes, straws and concentrates. The regression equations for predicting the nutritive value gave a reasonable level of accuracy (0·18–14·74% error). Higher levels of accuracy were attained employing regression equations formulated for more homogenous feed subgroups classified according to their protein and fibre contents. The percentage error resulting from the use of the specific equations was found to range between zero and 9·88.read more
Citations
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Evaluation of the Nutrient Status of Some Hydrophytes in the Water Courses of Nile Delta, Egypt
TL;DR: The nutritive values of three dominant hydrophytes along the water courses in Nile Delta, Egypt (Echinochloa stagnina, Eichhornia crassipes, and Ceratophyllum demersum) were evaluated in terms of estimating their phytomass, organic, and inorganic chemical compositions.
Journal ArticleDOI
Potential Contribution of Retama raetam (Forssk.) Webb & Berthel as a Forage Shrub in Sinai, Egypt
TL;DR: It is concluded that R. raetam has strong potential as forage crop with valuable nutritional quality for browsing animals and may represent an alternative feedstuff to the conventional forage and a promising substitute fodder in Mediterranean ecosystem.
Journal Article
The nutritive value and role of Panicum turgidum Forssk. in the arid ecosystems of the Egyptian desert
TL;DR: It is confirmed that P. turgidum grains could be considered as a potential crop, which may serve as a supplementary food to the common cereals, indicating the effect of edaphic factors on the wild population nutritive value which was proved also from the correlation between the edphic factors and nutritive variable.
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Biomass, nutrients and nutritive value of Persicaria salicifolia Willd. in the water courses of Nile Delta, Egypt
TL;DR: The ability of the dead parts of P. salicifolia to accumulate higher values of nutrients renders this plant as a powerful phytoremediator for removal of pollutants from the aquatic ecosystems.
References
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Journal ArticleDOI
A two-stage technique for the in vitro digestion of forage crops
J. M. A. Tilley,R. A. Terry +1 more
TL;DR: A simple technique for the determination in vitro of the dry- or organic-matter digestibility of small (0·5 g) samples of dried forages is described, which involves incubation first with rumen liquor and then with acid pepsin.
Journal ArticleDOI
Symposium on Factors Influencing the Voluntary Intake of Herbage by Ruminants: Voluntary Intake in Relation to Chemical Composition and Digestibility
Journal ArticleDOI
Climate, nitrogen and grass. 2. The influence of light intensity, temperature and nitrogen on vivo digestibility of grass and the prediction of these effects from some chemical procedures.
TL;DR: In this paper, the digestibility of forages grown at different in-tensities of light, temperatures and amounts of N fertilizer was estimated with wethers, showing that the different factors affected chemical composition more than digestibility.