INTERNATIONAL JOURNAL OF AGRICULTURAL TECHNOLOGY

Volume 17, No. 01, Month JANUARY, Year 2021, Pages 227 - 236

Using spontaneously fermented cassava pulp (sfcp) neglected in an open pit as the energy source of fermented total mixed ration (ftmr) on the in vitro gas production technique

Napasirth, P.

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The nutritional value of spontaneously fermented cassava pulp (SFCP) was investigated. Results showed that SFCP is rich in organic matter and low in crude protein. More importantly, SFCP is easily perishable because of its high moisture content. After digging it up, the SFCP from the pit must be mixed with the feed ingredients as a fermented total mixed ration (FTMR) to prevent perishment. The pH of FTMR remained around 3.37–4.12, whereas that of 1.0% of urea in the diet gradually increased to exceed 4.00. In vitro gas production has been conducted to determine the optimum level of the SFCP in the dietary feed. The fermentation of the insoluble FTMR was decreased, with a high level of SFCP replacement compared to the cassava chips (P < 0.01), while the fractional rates of gas production were not significantly different (P > 0.05). However, using cassava chips in FTMR had the highest gas production at 96 h after incubation (P < 0.01). Notably, total gas production at 96 h was only 8–10% less with the SFCP than with the cassava chips. Based on this investigation, SFCP is considered a valuable carbohydrate source for ruminants to make lower price feed.

Keywords

Cassava pulp, FTMR, In vitro gas production, SFCP, Urea

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