中文摘要：

研究旨在明确糟渣类副产品的物理化学特性。收集并分析了20种糟渣类副产品的化学成分和物理特性参数及其相关关系。结果表明：20种糟渣类副产品的化学成分分布范围较大，其中粗蛋白质crudeprotein，CPl，中性洗涤纤维（neutraldetergentfiber，NDF）和酸性洗涤纤维（aciddeter—gentfiber，ADF）含量分别为27-334g／kgDM，200-717g／kgDM，119-385g／kgDM；容积密度（bulkdensity，BD）为0．265—0．902kg，l，持水率（waterholdingcapacity，WHC）为2．96～14．74L／kg，干物质溶出率（drymattersolubility，DMS01）为0．574～6．577卵，灰分溶出率（ashsolubility，Ashs01）为0．018～0．446g,q。糟渣类副产品的BD与NDF显著负相关（R=一0．539，P〈0．05），与可溶性碳水化合物（wSC）显著正相关（R=0．612，P〈0．05）；WHC与所有化学成分均无显著相关性（P〉0．05）；DMSol与NDF显著负相关（R=-0．459，P〈0。05），与WSC显著正相关（R=0．779，P〈0．05），与Ashsol显著正相关（R=0．556，P〈0．05）；Ashsol与粗灰分fR：0．527，P〈0．051显著正相关。以上可知，糟渣类副产品的物理化学参数，可以作为一项全面评价反刍动物饲料特性的有效指标，用以弥补单纯依靠饲料营养成分指标的不足。

英文摘要：

This experiment was conducted to determine the physical and chemical characterization of agro-industrial by-product. Twenty kind of agro-industrial by-products were collected and de- termined for their physical characteristics, chemical composition and the relationship of each oth- er. The results showed that the physical parameters and chemical composition of the 20 kinds of agro-industrial by-products distributed widely, crude protein （CP）, neutral detergent fiber （NDF） and acid detergent fiber （ADF） contents were 27-334 g/kg DM, 200-717 g/kg DM, 119-385 g/kg DM, respectively, bulk density （BD） of the 20 kind of agro-industrial by-products was 0.265- 0.902 kg/1, water holding capacity （WHC） was 2.96-14.74 L/kg, dry matter solubility （DMSol） was 0.574-6,577 g/l, ash solubility （Ashsol） was 0.018-0.446 g/1. BD was significantly negative related with neutral detergent fiber （NDF） （R=-0.539, P〈0.05）, but significantly positive related with wa- ter soluble carbohydrate （WSC） （R=0.612, P〈0.05）. WHC was not significantly with any chemical composition. DMSol was significantly negative related with NDF （R=-0.459, P〈0.05） but signifi- cantly positive related with WSC （R=0.779, P〈0.05） and Ashsol （R=0.556, P〈0.05）. Ashsol was significantly positive related with ash （R=0.527, P〈0.05）.It is concluded that physical-chemical parameters of agro-industrial by-product can be used as effective indicators for comprehensive evaluation of ruminant feed and make up for the deficiency of relying simply on the feed nu- trients.