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Nutritional Evaluation and Palatability of Major Range Forbs from South Darfur, Sudan

Open Journal of Animal Sciences 2016年第1期6卷 42-48页

作者： Hafiz Abdalla Mohamed Ali Abu Bakr Omer Ismail Mohammed Fatur Faisal Awad Ahmed El Hadi Omer Ahmed Magda Elmahdi Elbushra Ahmed Deputy Dean Graduate College University of Bahri Khartoum Sudan Ministry of Science and Technology Khartoum Sudan Ministry of Science and Technology Range and Animal Research Station Khartoum Sudan Department of Animal Production Faculty of Agriculture Sinnar University Sinnar Sudan

The nutritive value of rangelands in Southern Darfur, Sudan could be improved by introduction and multiplication of nutritious forbs with the objective of increasing livestock production in the area. The present study was conducted to evaluate the nutritive value and palatability of eleven range forbs collected at flowering stage from Gahzal Gawazat, Southern Darfur, Sudan using chemical analysis. The crude protein (CP) ranged from 6.8% in Oxygonum atriplicifolium with lowest digestible crude protein (DCP) 2.8% to 16.4% in Zornia diphylla with highest DCP 11.73%. The highest and the lowest crude fiber (CF) values were obtained in Commelina spp (56.4%) and Sesamum alatum (25.9%), respectively. NDF and DMI values were maximum and minimum for Zornia diphylla (44.9 and 2.67%) and Alysicarpus glumaceus (35.3 and 3.4%), respectively. The total digestible nutrients (TDN) ranged from 57.1% in Blepharis linariifolia to 69.3% in Tribulus terrestris with highest digestible energy (DE) in later while the lowest DE was obtained in Commelina spp (2.4%). The calculated in vitro organic matter digestibility (IVOMD) was highest for the Canavalia ensiformis (50.27%) and lowest value (43.17%) for Commelina spp. Zornia diphylla, Tribulus terrestris and Sesamum alatum showed highest nutritive value, while Alysicarpus glumaceus, Oldenlandia senegalensis and Chrozophora brocchiana showed highest palatability. It is concluded that these rangeland forbs are palatable and their CP and energy contents are sufficient to support different classes of livestock in South Darfur, Sudan.

关键词： Forbs Nutritive value Palatability relative feed value Energy value

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