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The aim of this study was to determine the effect of replacing soybean meal (SBM) with fermented cassava pulp by Saccharomyces cerevisiae (FCSC) in the diet of growing goats. Growing goats were randomly assigned to five dietary treatments according to replicated 5 × 5 Latin square design. Dietary treatments were five levels of replacement SBM to FCSC at 0, 25, 50, 75, and 100% of crude protein in concentrates. The results showed that total dry matter intake (DMI, g/day) was increased (P < 0.05) with increasing FCSC. The highest for body weight change was found in 75% replacement of SBM by FCSC. The results suggested that FCSC could replace up to 75% of SBM in concentrate of growing goats fed rice straw as roughage. Based on this result, using 75% FCSC as the main source of protein to completely replace soybean meal was beneficial to growing goats in terms of feed intake and productive performance., Competing Interests: Competing interests The authors declare no competing interests., (© 2024. The Author(s).)

The purpose of this study was to determine intestinal digestibility of residual components of cassava pulp solid state fermentation by Saccharomyces cerevisiae for animal feed. Three ruminally cannulated Holstein cows were used to determine the in situ degradability of cassava pulp solid state fermentation by Saccharomyces cerevisiae. Thirty-six sample bags of fermented cassava pulp were incubated in the rumen for 16 h to determine the in vitro intestinal digestibility. The results of the chemical analysis indicated that fermentation was slightly improved ruminal undegradable protein (RUP) of cassava pulp. The highest value of RUP was significantly differ (p<0.05) after 5 days of fermentation period. Ruminal undegradable protein content increased (p<0.05) with the addition of Saccharomyces cerevisiae in cassava pulp. The present results indicate that fermented cassava pulp can improved, protein content and ruminal undegradable protein content. [ABSTRACT FROM AUTHOR]