Yield and quality of wilted sweet potato vines and its silages

Abstract

Sweet potato is widely used for human consumption, but has also potential for its use in animal feeding. In this study we evaluated yield and quality as forage of wilted vines of various sweet potato genotypes and selected the most suitable for silage. Fifteen genotypes were evaluated (BD-31TO, BD-26, BD-13, BD-17, BD-22, BD-24, BD-54, BD-56, BD-69, BD-43, BD-44, BD-46, BD-52, BD-35, and cultivar Brazlândia Rosada), in a randomized complete blocks design, with three replications. At harvest we determined the yield of fresh matter and subsequently dry matter of vines. After 190 days of ensilage, we determined the concentrations of dry matter, crude protein, neutral and acid detergent fiber, lignin, ash, soluble carbohydrates in both vines and its silages; buffering and fermentative capacities of vines, and pH of silages. Genotypes BD-13, BD-17, BD-54, BD-56, BD-43, BD-44, BD-46, and BD-52 showed medium to high yield of fresh and dry matter. There were significant differences among genotypes in all studied bromatological characteristics, except for carbohydrate concentrations in wilted vines and their silages. Considering wilted vines, genotypes BD-26, BD-13, BD-56, BD-46, BD-35 and cultivar Brazlândia Rosada were those with the most suitable bromatological composition for animal feeding. Genotype BD-56 was the most appropriate for silage production.

Effect of microbial inoculants on fermentation quality and aerobic stability of sweet potato vine silage

“…Addition of IRG into SPV forage decreased moisture to ideal concentration (60.7%) but changed the chemical composition of SPV silage. After a wilting process for 24 h the original SPV silage contained 27.2% DM, 10.9% CP, 49.8% NDF, and 41.6% ADF [ 4 ], which has lower DM and NDF, and higher CP concentrations compared to our SPV silage. A change of chemical composition in our SPV silage might show the different effects on fermentation quality and aerobic stability compared to original SPV.…”

“…However, the utilization of SPV for ruminant is limited due to the rapid spoilage by the growth of undesirable microbes, which might be caused by high WSC and moisture contents of SPV. Application of SPV as silage can be chosen to improve its preservation quality of SPV [ 2 , 4 ]. The ensiled SPV had shown the beneficial effects on growing pigs and goats [ 5 – 7 ].…”

Effect of debranching on sweet potato yield and quality

“…Although it is traditionally cultivated for the production of roots for human consumption, its branches are often simply discarded as unusable waste. They can be considered as potential for animal feed such as pigs and cattle (Veiga et al, 2009, Ly et al, 2012, Pedrosa et al, 2015. Their supply is of most varied forms: in natura, dried or conserved, for being rich in sugars, vitamins and have high crude protein content, total digestive nutrients and digestibility (Figueiredo et al, 2012;Andrade Júnior et al, 2014;Camargo et al, 2016).…”

Evaluation of Promising Sweet potato Clones for Higher Root Yield and Dry Matter Content

“…Flour has a considerable potential to be developed to support the diversification of non-rice food programs. Beside functions as a food source, it can be used as industrial raw materials, feed and renewable energy resources (Vimala et al 2012;Waluyo et al 2015;Pedrosa et al 2015). Sweet potato is also rich of carbohydrate and nutrition content such as protein, dietary fiber, minerals (iron, calcium, potassium, phosphorus, and sodium), vitamins (vitamin C, vitamin B1, and vitamin B2) as well as bioactive compounds such as carotenoids, anthocyanins,…”