Kiatti Dieu Donné, Vastolo Alessandro, Koura Bossima Ivan, Vitaglione Paola, Cutrignelli Monica Isabella, Calabrò Serena
Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80138 Naples, Italy.
Ecole de Gestion et d'Exploitation de Système d'Elevage, Université Nationale d'Agriculture, Ketou P.O. Box 43, Benin.
Animals (Basel). 2023 Oct 17;13(20):3238. doi: 10.3390/ani13203238.
Pineapple fruit, which is cultivated in tropical and subtropical areas, is processed by the food industry, generating a large amount of waste. Using pineapple by-products in animal nutrition could reduce feeding costs and contribute to the containment of pollution. The chemical composition and the in vitro fermentation of five pineapple by-products (crown, bud end, peel, core, and pomace) from two West African pineapple varieties (Smooth Cayenne-SC and Sugarloaf-SL) were evaluated. Significant differences were observed between the varieties and by-products. The dry matter (DM) content was low and superimposable between varieties, averaging 17.7%. On a DM basis, pomace showed the highest protein content (SC 8.10% and SL 8.81%, < 0.001), whereas the crown showed the highest ( < 0.001) NDF content (47.62% and 39.01% for SC and SL, respectively). Due the high sugar content, the core and pomace showed high in vitro organic matter degradability (SC: 85.09% and SL: 83.98%), estimated metabolizable energy (SC: 7.91 KJ/kg and SL: 7.66 KJ/kg), and volatile fatty acid production (96.86 mmol/g and 90.62 mmol/g). Based on chemical composition and in vitro digestibility results, this study suggests that pineapple by-products have the potential to be used in ruminants' diets, considering the crown, bud end, and peel as fiber sources and the core and pomace as substitutes or supplements to concentrate feedstuffs. Further research should be conducted on the storability of these by-products through in vivo trials evaluating animals' performances and the quality of their products.
菠萝生长于热带和亚热带地区，食品工业加工菠萝时会产生大量废弃物。在动物营养中使用菠萝副产品可以降低饲养成本，并有助于控制污染。对来自两个西非菠萝品种（无眼菠萝-SC和砂糖菠萝-SL）的五种菠萝副产品（冠、蒂头、果皮、果心和果渣）的化学成分和体外发酵进行了评估。品种和副产品之间存在显著差异。干物质（DM）含量较低，品种间相近，平均为17.7%。以干物质计，果渣的蛋白质含量最高（SC为8.10%，SL为8.81%，<0.001），而冠的中性洗涤纤维（NDF）含量最高（<0.001）（SC和SL分别为47.62%和39.01%）。由于含糖量高，果心和果渣的体外有机物降解率较高（SC：85.09%，SL：83.98%），估计代谢能（SC：7.91 KJ/kg，SL：7.66 KJ/kg）和挥发性脂肪酸产量（96.86 mmol/g和90.62 mmol/g）。基于化学成分和体外消化率结果，本研究表明，菠萝副产品有潜力用于反刍动物日粮，可将冠、蒂头和果皮作为纤维来源，果心和果渣作为精饲料的替代品或补充物。应通过体内试验评估动物性能及其产品质量，进一步研究这些副产品的储存性。
