Effects of Guar (<i>Cyamopsis tetragonoloba</i>) Residues on the Performance and Nutrients Digestibility in Finishing Awassi Lambs

• 作者: Jamal Abo Omar Ahmed Zaazaa Maen Sheqwarah Bassam Abu Shanab Wael Qaisi Jehad Abdallah
• 来源期刊: 动物科学期刊(英文)
• 学科: 农学
• 关键词: Guar Residues Awassi Lambs PERFORMANCE Nutrients Digestibility
• 年，卷（期）: 2021,（1）
• 页码范围: 96-104
• 页数: 9页
• 分类号: S51

摘要

The nutritive quality of guar (<i></span><i><span style="font-family:Verdana;">Cyamopsis tetragonoloba</span></i><span style="font-family:Verdana;"></i></span><span style="font-family:Verdana;">) residues (GR) was investigated and the effects of partial replacement of wheat straw by GR on nutrients intake, digestibility, and growth performance. Twenty four male lambs, with average body weight (BW) of 40.3 ± 2.5 kg were divided into three groups. Lambs were fed individually for 104 days with concentrate mixture (18% crude protein) and wheat straw as a total mixed ration. Wheat straw was replaced with 0, 100 and 145 g/kg dry matter guar residues. All rations were isonitrogenous and isocaloric. The fattening trial lasted 104 days</span></span><span style="font-family:Verdana;">.</span><span style="font-family:Verdana;"> At the end of week 10 of the trail</span><span style="font-family:Verdana;">,</span><span style="font-family:Verdana;"> a digestion trial was performed using six lambs from each group. The composition of nutrients in the GR was 87%, 8.5%, 56.4% and 40.1% for DM, CP, NDF and ADF, respectively. DM and crude protein (CP) intake were not affected by the inclusion of GR</span><span style="font-family:Verdana;">.</span><span style="font-family:""><span style="font-family:Verdana;"> However, neutral detergent fibre (NDF) and acid detergent fibre (ADF) intake were lower in lambs fed GR compared to control lambs. At the end of the experiment, lambs fed 100 and 145 g GR/kg DM diets gained more weight (P < 0.05) than those fed the control diet. The same trend was found for feed con</span><span style="font-family:Verdana;">version (CR). Results from this work suggest</span></span><span style="font-family:Verdana;">ed</span><span style="font-family:Verdana;"> that GR had advantages compa</span><span style="font-family:Verdana;">red to regular roughage (wheat straw) in regard to parameters investigated as well as the significant reduction in fattening diets cost.