With the ultimate goal of sustaining eco-friendly goat farming, identifying high quality feeds and preservation techniques to improved utilization efficiency which reduces GHGs, is vital to improve the overall goat productivity and elevate raisers profit. The study aims to determine the feeding efficiency of varieties of napiergrass fermented with various substrates on the growth, in-vivo digestibility and economics in raising upgraded goats. Study was laid-out following RCB design, where goats are treated with varieties of napiergrass fermented with different substrates and data were analyzed using Tukey-Kramer Test. Florida cultivar has the highest DM, protein content, and lactic acid content with 30.10%, 5.91g/100g and 32.80%, respectively. Silage fermented with wheat bran have the highest DM of 31.3%-45%, 5.18%-7.03% CP, and 33.0-39.0% lactic acid. Florida significantly improved weight gain (WTG), average daily gain (ADG), feed conversion ratio (FCR), digestibility of forage, grasses, and silage, net income and ROI. Wheat bran in silage significantly improved final weight (FWT), WTG, ADG, FCR, digestibility of forage, grasses, silage, legumes, net income and ROI. Generally, raising goats fed with Florida silage fermented with wheat bran improved the forage, grasses, silage, and legume digestibility, which consequently improved the growth and eventually increases profit in raising upgraded goats.
