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

J. A. Omar, A. Zaazaa, Maen N. Sheqwarah, B. A. Shanab, W. Qaisi, J. Abdallah
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引用次数: 2

Abstract

The nutritive quality of guar (Cyamopsis tetragonoloba) 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. At the end of week 10 of the trail, 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. 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 version (CR). Results from this work suggested that GR had advantages compared to regular roughage (wheat straw) in regard to parameters investigated as well as the significant reduction in fattening diets cost.
瓜尔豆(Cyamopsis tetragonoloba)残留对育成Awassi羔羊生产性能和养分消化率的影响
研究了瓜尔豆(Cyamopsis tetragonoloba)残渣(GR)的营养品质,以及GR部分替代麦秸对营养物质摄入、消化率和生长性能的影响。选取24只平均体重(BW)为40.3±2.5 kg的公羊羔分为3组。以粗蛋白质含量为18%的精料混合日粮与麦秸混合饲喂,试验期104 d。用0、100和145 g/kg干物质瓜尔瓜尔渣代替麦秸。所有的口粮都是等氮和等热量的。育肥试验期104 d。在试验第10周末,每组取6只羔羊进行消化试验。GR中DM、CP、NDF和ADF的营养成分组成分别为87%、8.5%、56.4%和40.1%。饲粮中添加GR对DM和粗蛋白质(CP)采食量没有影响,但中性洗涤纤维(NDF)和酸性洗涤纤维(ADF)采食量低于对照组。试验结束时,饲粮中添加100和145 g GR/kg DM的羔羊体重(P版)增加较多。本研究结果表明,与普通粗饲料(麦秸)相比,GR在研究参数方面具有优势,并且显著降低了育肥饲料的成本。
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