Cassava pulp added to fermented total mixed rations increased tropical sheep’s nutrient utilization, rumen ecology, and microbial protein synthesis

Abstract

Objective: The price of animal production will be affected by the significant increase in feed costs. The objective of this research was to investigate the impact of adding waste cassava pulp to fer¬mented total mixed ration (FTMR) on nutrient utilization, rumen ecology, and microbial protein synthesis in tropical sheep. Materials and Methods: A 3 × 3 replicated Latin square design was used to randomly arrange nine crossbreed lambs (Santa Inês × Dorper) with an initial body weight (BW) of 18.7 ± 1.6 kg (mean ± SD). During a 21-day trial, the animal was offered a random selection of concentrate diets and rice straw (control), total mixed ration (TMR), or FTMR. During the investigation, data on nutrition utilization, rumen ecology, and microbial protein synthesis were analyzed using analysis of variance. Results: The finding shows that FTMR had significantly higher dry matter (DM) intake and DM intake per BW than either TMR or control (p < 0.05). Lamb fed on FTMR had significantly higher DM, organic matter protein, crude protein, and neutral detergent fiber digestion than those on control or TMR (p < 0.05). Rumen pH values for all treatments ranged from 6.68 to 6.73, with no significant differences. Growing lambs fed FTMR had greater rumen total volatile fatty acid and propionic acid concentrations than those given TMR and the control (p < 0.05). Protozoa were not different across the FTMR groups, although total bacterial and fungal zoospores were increased. In addition, when lambs were fed FTMR containing cassava pulp, ruminal microbial protein syn¬thesis was significantly increased. Conclusion: It could indicate that feeding growing lambs with FTMR could improve nutrient utili¬zation, ruminal fermentation, and microbial protein synthesis. However, studies on the effects of FTMR on sheep performance, meat quality, and milk quality are necessary.

Blood Metabolites, Feed Utilization and Performance in Thai Native X Lowline Angus Crossbred Cattle Fed Cassava Byproducts

“…On the other hand, OM and CP of digestibility were increased when yeast-fermented cassava pulp replaced soybean meal in diets (Sommai et al, 2020). Cassava pulp-fermented Total Mixed Rations (TMR) increased the nutrient digestibility in lambs (Khejornsart et al, 2022), while this has been confirmed previously (Morm et al, 2023) and by this current study. In addition, using concentration assists in boosting nutrient digestibility and intake in cattle (Jiang et al, 2022).…”

“…Prior studies support each other concerning CP in concentrated and fermented cassava pulp (Sommai et al, 2020). Separately, the current study of Rice Straw (RS) containing CP was varied and found it was better than the previous study (Khejornsart et al, 2022;Gunun et al, 2018;Dagaew et al, 2023), but it was similar to (Sommai et al, 2020).…”

“…Utilizing CtFCp with a high urea concentration is also an additional way to enhance feed digestion. According to Khejornsart et al (2022), the nutrient digestibility of DM, OM, CP, NDAF, and ADF increased while a mixed ratio of cassava pulp fermented, as supported by Morm et al (2023).…”

“…The fraction of NDF and ADF were less digestible, maybe due to the tendency of a minimal ruminal pH to greater qualities of soluble carbohydrates. The recent results on the nutrient digestibility of Dry Matter (DM), Crude Protein (CP), Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) are much more digested than previous findings (Khejornsart et al, 2022;Dagaew et al, 2022;Norrapoke et al, 2022), but less than (Sommai et al, 2020), which substituted soybean meal with yeastfermented cassava pulp and (Keaokliang et al, 2018), which used a cassava diet in cattle. Fibrolytic enzymes that yeast may release break down the fiber content of cassava pulp, which comprises yeast cells and urea.…”

“…However, this was unsupported by Keaokliang et al (2018), with a high concentration and low cassava pulp supply in the diet. According to Khejornsart et al (2022), the utilization of nutrients, rumen ecology, and protein synthesis of micro were increased in tropical sheep while cassava pulp was added to fermented mixed ratios in the diet. Meanwhile, to enable the fibrinolytic enzymes that yeast may release to break down the fiber content of cassava pulp, the CtFCp comprised yeast cells and urea.…”