CAJ | 학술논문

试验旨在综合评价从山东省17个市采集的羊常用粗饲料原料的营养价值。试验测定了109个样本10种常用原料的常规营养成分及总能（GE），应用两级离体消化法测定干物质消化率（IVDMD），以计算消化能（DE）和代谢能（ME），并根据预测干物质随意采食量（DMI），进而计算出分级指数（GI）。结果表明，不同粗饲料间的常规养分的差异不能准确地评价饲料营养价值；以 NDF、ADF 所得 GI 综合评价粗饲料中营养价值得到苜蓿＞冬牧70＞地瓜秧＞羊草＞花生秧＞青贮玉米秸＞玉米秸＞水稻秸＞豆秸＞麦秸；IVDMD 与 NDF、ADF 均呈显著负相关，而与 CP 呈显著正相关；DE 与 NDF、ADF 相关性较强，且均呈负相关。
시험지재종합평개종산동성17개시채집적양상용조사료원료적영양개치。시험측정료109개양본10충상용원료적상규영양성분급총능（GE），응용량급리체소화법측정간물질소화솔（IVDMD），이계산소화능（DE）화대사능（ME），병근거예측간물질수의채식량（DMI），진이계산출분급지수（GI）。결과표명，불동조사료간적상규양분적차이불능준학지평개사료영양개치；이 NDF、ADF 소득 GI 종합평개조사료중영양개치득도목숙＞동목70＞지과앙＞양초＞화생앙＞청저옥미갈＞옥미갈＞수도갈＞두갈＞맥갈；IVDMD 여 NDF、ADF 균정현저부상관，이여 CP 정현저정상관；DE 여 NDF、ADF 상관성교강，차균정부상관。
This experiment was conducted to evaluate the nutritional value of common forages fed to goats sam-pled from 17 cities in Shandong Province.A total of 109 samples from 10 species were used to analyze common forage value and gross energy (GE).Forage attributes measured included in vitro dry matter digestibility (IVDMD),digestible energy (DE),metabolizable energy (ME)and crude protein (CP).An acceptability in-dex of all forages was calculated using voluntary dry matter intake.The results revealed that the nutritional value of goat forage cannot be accurately evaluated by conventional nutrient analysis.Digestible energy was highest in alfalfa hay followed by Secale cereale hay,sweet potato vine,Chinese wild rye,peanut stem,corn stalk silage,dried corn stalk,rice straw,soybean straw and wheat straw.IVDMD and DE were significantly negatively correlated with NDF and ADF,while IVDMD was positively correlated with CP.