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首页> 外文期刊>Research Opinions in Animal & Veterinary Sciences >Nutritive value of several raisin by-products for ruminants evaluated by chemical analysis and in situ ruminal degradability
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Nutritive value of several raisin by-products for ruminants evaluated by chemical analysis and in situ ruminal degradability

机译：通过化学分析和瘤胃可降解性评估几种葡萄干副产物对反刍动物的营养价值

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Feeding ruminants with agro-industrial by-products can help to fill feed shortages in dry period. The objectives of current study were to determine the nutritive value of several sun dried grapevine (raisin) by-products (RBPs) for ruminants using chemical composition analysis and in situ ruminal degradability. Several RBPs of sun dried treated grapevine cluster (Vitis vinifera L. cv. Sultana) include 1) outer layer of flesh and skin and pedicle of berries (RBP1); 2) rejected raisins mostly un-ripped berries with their pedicles (RBP2) and 3) peduncles and rachises with their lateral branches of clusters (RBP3). Results showed that the RBP1 had lower neutral detergent fiber, lignin (sa.) and nitrogen to organic matter ratio while these components were higher for RBP3, with RBP2 intermediate (P<0.05). The RBP1 and RBP3 had higher total tannin concentration compared with RBP2 (75.8 and 69.2 respectively versus 34.6 g/kg DM; P<0.05). The RBP1 had higher in situ ruminal degradation and lower undegradable fraction (predicted by in situ and DVE/OEB 1994 model) for dry matter (DM) and organic matter (OM) compared with RBP3, with RBP2 intermediate (P<0.01). In conclusion, the RBPs could be considered as alternative feed in ruminants feeding during dry periods; however, their tannin and lignin (sa) content should be taken into consideration for decision making.
机译：用农业工业副产品喂养反刍动物可以帮助填补干旱时期的饲料短缺。当前研究的目的是使用化学成分分析和原位瘤胃降解性，确定几种晒干的葡萄干（葡萄干）副产物（RBP）对反刍动物的营养价值。经晒干处理的葡萄串（葡萄属葡萄）的几个RBP包括：1）肉和皮肤的外层以及浆果的蒂（RBP1）; 2）拒绝的葡萄干大多是带茎的未剥去的浆果（RBP2）和3）具花梗和花序具的簇生侧枝（RBP3）。结果表明，RBP1具有较低的中性洗涤剂纤维，木质素（sa。）和氮与有机质比，而RBP3的这些成分较高，具有RBP2中间体（P <0.05）。与RBP2相比，RBP1和RBP3的总单宁浓度更高（分别为75.8和69.2，而34.6 g / kg DM; P <0.05）。与RBP3和RBP2中间产物相比，RBP1对于干物质（DM）和有机物质（OM）的原位瘤胃降解较高，而不可降解分数较低（由原位和DVE / OEB 1994模型预测）。总之，在干旱时期反刍动物饲料中，RBPs可以被视为替代饲料。但是，决策时应考虑其单宁和木质素含量。

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