scholarly journals Effects of different ratios and storage periods of liquid brewer’s yeast mixed with cassava pulp on chemical composition, fermentation quality and in vitro ruminal fermentation

2016 ◽  
Vol 30 (4) ◽  
pp. 470-478 ◽  
Author(s):  
Sukanya Kamphayae ◽  
Hajime Kumagai ◽  
Wanna Angthong ◽  
Ramphrai Narmseelee ◽  
Smerjai Bureenok
2008 ◽  
Vol 142 (1-2) ◽  
pp. 99-110 ◽  
Author(s):  
Solomon Tefera ◽  
V. Mlambo ◽  
B.J. Dlamini ◽  
A.M. Dlamini ◽  
K.D.N. Koralagama ◽  
...  

LWT ◽  
2021 ◽  
pp. 112317
Author(s):  
Arão Cardoso Viana ◽  
Tatiana Colombo Pimentel ◽  
Rafaela Borges do Vale ◽  
Lorena Santos Clementino ◽  
Emilly Thayná Januario Ferreira ◽  
...  

2019 ◽  
Vol 49 (7) ◽  
Author(s):  
Zhihao Dong ◽  
Junfeng Li ◽  
Lei Chen ◽  
Siran Wang ◽  
Tao Shao

ABSTRACT: This study was conducted to evaluate the effects of additives on the fermentation characteristics, chemical composition and in vitro digestibility of tetraploid black locust (TBL). The TBL leaves silage was either untreated (control) or treated with 1 × 106 cfu/g FM Lactobacillus plantarum (L), 1% glucose (G), 3% molasses (M), a combination of 1% glucose and Lactobacillus plantarum (L+G), or a combination of 3% molasses and Lactobacillus plantarum (L+M). Fermentation quality, chemical composition and nutrient digestibility were then analyzed. Ethanol and acetic acid concentrations were the dominant fermentation products in all silages except L+M silage. The L, G and L+G treatments failed to influence the fermentation. The M treatment increased (P<0.05) the lactic acid concentration and lowered (P<0.05) the pH when compared with control silage. The best fermentation properties were observed in L+M silage, as indicated by the dominance of lactic acid over ethanol in fermentation products. The M and L+M silages exhibited higher (P<0.05) dry matter, and M silage showed higher residual water-soluble carbohydrates than the control. Ensiling increased (P<0.05) the in vitro dry matter, neutral detergent fiber and acid detergent fiber degradability of TBL. Among the silages, M silage had the highest levels of dry matter, neutral detergent fiber and acid detergent fiber degradability. The obtained results suggested that application of lactic acid bacteria together with 3% molasses could be an effective strategy to prevent the occurrence of ethanol fermentation and improve fermentation quality of TBL silage; addition of fermentable sugars to TBL improves nutrient availability to ruminants.


2019 ◽  
Vol 94 (4) ◽  
pp. 1521-1528
Author(s):  
Jinhe Kang ◽  
Rong Wang ◽  
Shaoxun Tang ◽  
Min Wang ◽  
Zhiliang Tan ◽  
...  

2009 ◽  
Vol 26 (1) ◽  
pp. 9-17 ◽  
Author(s):  
S Tefera ◽  
V Mlambo ◽  
BJ Dlamini ◽  
AM Dlamini ◽  
KDN Koralagama ◽  
...  

Fermentation ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 196
Author(s):  
Gamonmas Dagaew ◽  
Anusorn Cherdthong ◽  
Sawitree Wongtangtintharn ◽  
Metha Wanapat ◽  
Chanon Suntara

Cassava pulp (CS) is high in fiber and low in protein; hence, improving the nutritive value of CS is required to increase its contribution to enhancing ruminant production. The present work hypothesized that CS quality could be enhanced by fermentation with yeast waste (YW), which can be used to replace soybean meal (SBM), as well as lead to improved feed utilization in ruminants. Thus, evaluation of in vitro ruminal fermentation and feed digestibility, as influenced by YW-treated CS and different roughage (R) to concentrate (C) ratios, was elucidated. The design of the experiment was a 5 × 3 factorial arrangement in a completely randomized design. Each treatment contained three replications and three runs. The first factor was replacing SBM with CS fermented with YW (CSYW) in a concentrate ratio at 100:0, 75:25, 50:50, 25:75, and 0:100, respectively. The second factor was R:C ratios at 70:30, 50:50, and 30:70. The level of CSYW showed significantly higher (p < 0.01) gas production from the insoluble fraction (b), potential extent of gas production (a + b), and cumulative gas production at 96 h than the control group (p < 0.05). There were no interactions among the CSYW and R:C ratio on the in vitro digestibility (p > 0.05). Furthermore, increasing the amount of CSYW to replace SBM up to 75% had no negative effect on in vitro neutral detergent fiber degradability (IVNDFD) (p > 0.05) while replacing CSWY at 100% could reduce IVNDFD (p > 0.05). The bacterial population in the rumen was reduced by 25.05% when CSYW completely replaced SBM (p < 0.05); however, 75% of CSWY in the diet did not change the bacterial population (p > 0.05). The concentration of propionate (C3) decreased upon an increase in the CSYW level, which was lowest with the replacement of SBM by CSYW up to 75%. However, various R:C ratios did not influence total volatile fatty acids (VFAs), and the proportion of VFAs (p > 0.05), except the concentration of C3, increased when the proportion of a concentrate diet increased (p < 0.05). In conclusion, CSYW could be utilized as a partial replacement for SBM in concentrate diets up to 75% without affecting gas kinetics, ruminal parameters, or in vitro digestibility.


1942 ◽  
Vol 25 (6) ◽  
pp. 805-817 ◽  
Author(s):  
M. G. Sevag ◽  
M. Shelburne ◽  
Stuart Mudd

The inhibiting effects of sulfonamide drugs and their derivatives on the anaerobic decarboxylation of pyruvic acid by Staphylococcus aureus, Escherichia coli, baker's and brewer's yeast, and a carboxylase preparation from brewer's yeast have been investigated. These drugs are: sulfanilamide, sulfapyridine, sulfadiazine, sulfamethyldiazine, sulfathiazole, sulfamethylthiazole, sulfanilamido-5-ethyl-4-thiazolone, 2-aminopyrimidine, 2-aminothiazole, and 2-aminopyridine. The sulfathiazole ring appears to exercise decidedly greater specific inhibiting effect on the carboxylases of Staph. aureus and E. coli. The inhibiting effect on yeast carboxylase is non-differentiable among all the substances tried, except sulfamethyldiazine which is completely ineffective on the carboxylases of the organisms studied. The specific inhibitory effect of sulfathiazole on the carboxylases of Staph. aureus and E. coli in comparison to sulfanilamide, sulfapyridine, and sulfadiazine is in harmony with in vivo and in vitro experimental results of other investigators. The results of the present investigation appear to support the hypothesis (1) that sulfonamides exert their bacteriostatic action through chemical affinity for the carrier proteins of certain respiratory enzymes of the bacterial cell, and that this affinity may in part be related to structural similarity between components of the drugs and the corresponding respiratory coenzymes.


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