scholarly journals Megasphaera elsdenii Lactate Degradation Pattern Shifts in Rumen Acidosis Models

2019 ◽  
Vol 10 ◽  
Author(s):  
Lianmin Chen ◽  
Yizhao Shen ◽  
Chao Wang ◽  
Luoyang Ding ◽  
Fangfang Zhao ◽  
...  
Keyword(s):  
Degradation Pattern ◽  
Megasphaera Elsdenii ◽  
Rumen Acidosis ◽  
Lactate Degradation

scholarly journals Insights into Bacterial Community Involved in Bioremediation of Aged Oil-Contaminated Soil in Arid Environment

2021 ◽  
Vol 17 ◽  
pp. 117693432110168
Author(s):  
Rita Rahmeh ◽  
Abrar Akbar ◽  
Vinod Kumar ◽  
Hamad Al-Mansour ◽  
Mohamed Kishk ◽  
...  
Keyword(s):  
Oil Spills ◽  
Critical Role ◽  
Arid Environment ◽  
Total Petroleum Hydrocarbons ◽  
Microbial Consortia ◽  
Soil Microbial ◽  
Taxonomic Profiling ◽  
Degradation Pattern ◽  
Polycyclic Aromatic ◽  
Global Concern

Soil contamination by hydrocarbons due to oil spills has become a global concern and it has more implications in oil producing regions. Biostimulation is considered as one of the promising remediation techniques that can be adopted to enhance the rate of degradation of crude oil. The soil microbial consortia play a critical role in governing the biodegradation of total petroleum hydrocarbons (TPHs), in particular polycyclic aromatic hydrocarbons (PAHs). In this study, the degradation pattern of TPHs and PAHs of Kuwait soil biopiles was measured at three-month intervals. Then, the microbial consortium associated with oil degradation at each interval was revealed through 16S rRNA based next generation sequencing. Rapid degradation of TPHs and most of the PAHs was noticed at the first 3 months of biostimulation with a degradation rate of pyrene significantly higher compared to other PAHs counterparts. The taxonomic profiling of individual stages of remediation revealed that, biostimulation of the investigated soil favored the growth of Proteobacteria, Alphaprotobacteria, Chloroflexi, Chlorobi, and Acidobacteria groups. These findings provide a key step towards the restoration of oil-contaminated lands in the arid environment.

Estimation of Indoxacarb Residues by QuEChERS Technique and Its Degradation Pattern in Cabbage

2011 ◽  
Vol 88 (3) ◽  
pp. 372-376 ◽  
Author(s):  
Urvashi ◽  
Gagan Jyot ◽  
S. K. Sahoo ◽  
Sarabjit Kaur ◽  
R. S. Battu ◽  
...  
Keyword(s):  
Degradation Pattern

PSXIV-14 Supplementation of high-grain diet with red osier dogwood affects in vitro digestibility and fermentation characteristics

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 477-477
Author(s):  
Wenzhu Yang
Keyword(s):  
Control Diet ◽  
Antimicrobial Properties ◽  
Positive Control ◽  
Gas Production ◽  
In Vitro Digestibility ◽  
Randomized Design ◽  
Rumen Acidosis ◽  
Barley Silage ◽  
And Control

Abstract Red osier dogwood (ROD) is a native shrub plant rich in phenolic compounds with antimicrobial properties. The objective of this study was to evaluate the effects of substituting barley silage with either raw ROD or ROD extract (RODE) in high-grain (HG) diet under a low media pH (5.8) on gas production (GP), dry matter (DM) disappearance (DMD) and fermentation characteristics in batch cultures. The study was a completely randomized design with 4 treatments: 1) control diet (10% barley silage and 90% barley concentrate, DM basis), control diet supplemented with 2) monensin (30 mg/kg diet DM; positive control), 3) substitution of 3% ROD or 4) 3% RODE for an equal portion of silage. Inoculum was obtained from 2 ruminally fistulated beef heifers offered the HG diet. Substrate ground (1 mm) was incubated for 24 h and the experiment repeated twice. The GP did not differ among treatments (147 ml/g DM), but the DMD differed (P < 0.02) at highest for control (69.4%), lowest for ROD (58.4%) and intermediate for other treatments (64.1%). Total volatile fatty acid (VFA) concentration (mM) tended (P< 0.08) to be lower with ROD (80.5) and monensin (80.1) than control (83.9). Acetate proportion was greater (P = 0.02) with ROD (46.2%) and RODE (46.9%) than control (42.4%) and monensin (42.3%). However, the propionate proportion was greater (P = 0.05) with monensin (32.1%) than other treatments (averaged 30.1%). Consequently, acetate to propionate ratio (A:P) of ROD (1.52) and RODE (1.56) was higher than monensin (1.32; P < 0.01) and control (1.44; P < 0.08). Differences in variables measured between ROD and RODE were minimal. These results indicated that the decreased DMD along with increased A:P with addition of ROD or RODE suggests that both ROD and RODE may be beneficial to HG fed cattle for reducing risk of rumen acidosis without negatively impacting fibre digestion.

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