摘要
The nutritive value of 26 agro-industrial by-products was assessed from their chemical composition, in vitro digestibility and rumen fermentation kinetics. By-products from sugar beet, grape, olive tree, almond, broccoli, lettuce, asparagus, green bean, artichoke, peas, broad beans, tomato, pepper, apple pomace and citrus were evaluated. Chemical composition, in vitro digestibility and fermentation kinetics varied largely across the by-products. Data were subjected to multivariate and principal component analyses (PCA). According to a multivariate cluster analysis chart, samples formed four distinctive groups (A–D). Less degradable by-products were olive tree leaves, pepper skins and grape seeds (group A); whereas the more degradable ones were sugar beet, orange, lemon and clementine pulps (group D). In the PCA plot, component 1 segregated samples of groups A and B from those of groups C and D. Considering the large variability among by-products, most of them can be regarded as potential ingredients in ruminant rations. Depending on the characteristic nutritive value of each by-product, these feedstuffs can provide alternative sources of energy (e.g., citrus pulps), protein (e.g., asparagus rinds), soluble fibre (e.g., sugar beet pulp) or less digestible roughage (e.g., grape seeds or pepper skin).
摘要译文
26农工业副产品的营养价值，从它们的化学组合物进行评估，在体外消化率和瘤胃发酵动力学。副产品甜菜，葡萄，橄榄，杏仁，西兰花，生菜，芦笋，绿豆，朝鲜蓟，豌豆，蚕豆，西红柿，辣椒，苹果渣和柑橘进行了评价。化学成分，体外消化和发酵动力学变化很大程度上跨越副产物。数据进行多变量分析和主成分分析（PCA）。根据本发明的多元聚类分析图表，将样品形成的四个独特的基团（A-d）。难分解副产品是橄榄树的树叶，辣椒皮和葡萄籽（A组）;而更可降解的那些是甜菜，橙，柠檬和克莱门纸浆（基团d）。在PCA图，部件1分离的基团A的样品和B的那些基团C和D的考虑中的副产物，它们中的大多数被认为是反刍动物口粮潜在成分的大的变化。根据每个副产物的特性营养价值，这些饲料可以提供替代能源（例如，柑桔浆），蛋白质（例如，芦笋外皮），可溶性纤维（例如，甜菜浆）或更小的可消化粗饲料（例如，葡萄籽或胡椒皮肤）。
Jairo García-Rodríguez[ 1;2]; María José Ranilla[ 1;2;[*]; James France[ 3]; Héctor Alaiz-Moretón[ 4]; María Dolores Carro[ 5];Secundino López[ 1;2;[*]. Chemical Composition, In Vitro Digestibility and Rumen Fermentation Kinetics of Agro-Industrial By-Products[J]. Animals, 2019,9(11): 861