Snoring and halitosis in a dog     

H. LAURENDET  M. GOVENDIR  WL PORGES  R. MALIK 《Australian veterinary journal》1998,76(4):245-251

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Prediction of enteric methane emission from beef cattle in Southeast Asia          下载免费PDF全文

Tomoyuki Suzuki  Kritapon Sommart  Wanna Angthong  Thu Van Nguyen  Anan Chaokaur  Peerapot Nitipot  Arun Phromloungsri  Yimin Cai  Takashi Sakai  Takehiro Nishida  Fuminori Terada  Tomoyuki Kawashima 《Animal Science Journal》2018,89(9):1287-1295

We conducted a meta‐data analysis to develop prediction equations to estimate enteric methane (CH₄) emission from beef cattle in Southeast Asia. The dataset was obtained from 25 studies, which included 332 individual observations on nutrient intakes, digestibilities, and CH₄ emissions. Cattle were provided tropical forage or rice straw, with or without concentrates in individual pens equipped with indirect open‐circuit head hood apparatus. The simplest and best equation to predict daily CH₄ emission was CH₄ (g/day) = 22.71 (±1.008) × dry matter intake (DMI, kg/day) + 8.91 (±10.896) [R² = 0.77; root mean square error (RMSE) = 19.363 g/day]. The best equation to predict CH₄ energy as a proportion of gross energy intake (CH₄‐E/GEI, J/100 J) was obtained using DMI per body weight (DMIBW, kg/100 kg), content (g/100 g DM) of ether extract (EE) and crude protein (CP), and DM digestibility (DMD, g/100 g); CH₄‐E/GEI = ?0.782 (±0.2526) DMIBW ? 0.436 (±0.0548) EE ? 0.073 (±0.0218) CP + 0.049 (±0.0097) DMD + 8.654 (±0.6517) (R² = 0.39; RMSE = 1.3479 J/100 J GEI). It was indicated that CH₄ emissions from beef cattle in Southeast Asia are predictable using present developed models including simple indices.  相似文献   

High level of multidrug-resistant Escherichia coli in young dairy calves in southern Vietnam     

Hang  Bui Phan Thu  Wredle  Ewa  Börjesson  Stefan  Sjaunja  Kerstin Svennersten  Dicksved  Johan  Duse  Anna 《Tropical animal health and production》2019,51(6):1405-1411

This study investigated the occurrence of antimicrobial-resistant Escherichia coli in dairy calves in southern Vietnam. Fecal samples were taken directly from the rectum of 84 calves from 41 smallholder dairy farms, when newborn and at 14 days of age for isolation of E. coli. Escherichia coli strains were isolated from 144 of the 168 fecal samples tested. Of the 144 E. coli isolates, 40% were found to be susceptible to all 12 antimicrobial drugs tested and 53% of the E. coli isolates were resistant to at least three antimicrobials. Calves were colonized with antimicrobial-resistant E. coli already on the day of birth. Resistance to tetracycline was most common, followed by resistance to sulfamethoxazole, ampicillin, trimethoprim, and ciprofloxacin. Four isolates carried a gene encoding for extended-spectrum cephalosporinases (ESC), and these genes belonged to bla_CTX-M group 1 (2 isolates), bla_CTX-M group 9 (1 isolate), and bla_CMY-2 (1 isolate). Thirty-three isolates had a plasmid-mediated quinolone resistance (PMQR) phenotype, and 30 of these carried the qnrS gene. These results are of importance for management routines of dairy cattle to prevent the spread of antimicrobial resistance.

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Evaluation of infiltration models and field-saturated hydraulic conductivity in situ infiltration tests during the dry season     

Shiraki  Shutaro  Aung Kyaw Thu  Matsuno  Yutaka  Shinogi  Yoshiyuki 《Paddy and Water Environment》2019,17(4):619-632

Paddy and Water Environment - Field-saturated hydraulic conductivity (Kfs) is an important parameter used to estimate field water requirements in irrigation systems, although it is widely...  相似文献   

Precursors of 2-acetyl-1-pyrroline, a potent flavor compound of an aromatic rice variety   总被引：8，自引：0，他引：8  

Yoshihashi T  Huong NT  Inatomi H 《Journal of agricultural and food chemistry》2002,50(7):2001-2004

The biological formation of a potent flavor compound, 2-acetyl-1-pyrroline, in the aromatic rice variety (Khao Dawk Mali 105) was studied in seedlings and callus of the rice. Concentrations of 2-acetyl-1-pyrroline were determined by GC-MS-SIM using an isotope dilution method. Increases in concentration occurred when proline, ornithine, and glutamate were present in solution, with proline increasing the concentration by more than 3-fold compared to that of the control. Results of tracer experiments using (15)N-proline, (15)N-glycine, and proline-1-(13)C indicated that the nitrogen source of 2-acetyl-1-pyrroline was proline, whereas the carbon source of the acetyl group was not the carboxyl group of proline. 2-acetyl-1-pyrroline was formed in the aromatic rice at temperatures below that of thermal generation in bread baking, and formed in the aerial part of aromatic rice from proline as the nitrogen precursor.  相似文献   

Pseudomonas pseudomallei infection in camels     

JC FORBES-FAULKNER  WL TOWNSEND  AD THOMAS 《Australian veterinary journal》1992,69(6):148-148

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Identification of urinary microRNA biomarkers for in vivo gentamicin-induced nephrotoxicity models     

Byung-Suk Jeon  Soo-ho Lee  So-Ryeon Hwang  Hee Yi  Ji-Hyun Bang  Nga Thi Thu Tham  Hyun-Kyoung Lee  Gye-Hyeong Woo  Hwan-Goo Kang  Hyun-Ok Ku 《Journal of veterinary science (Suw?n-si, Korea)》2020,21(6)

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In vitro antimicrobial activity of aminoreductone against the pathogenic bacteria methicillin-resistant Staphylococcus aureus (MRSA)     

Trang VT  Takeuchi H  Kudo H  Katsuno S  Shimamura T  Kashiwagi T  Son VH  Sugiura T  Ukeda H 《Journal of agricultural and food chemistry》2011,59(16):8953-8960

In this study, antimicrobial activity of aminoreductone (AR), a product formed during the initial stage of the Maillard reaction, against methicillin-resistant Staphylococcus aureus (MRSA) was evaluated. The significant growth inhibition of all 51 MRSA isolates irrespective of drug susceptibility by AR was observed. The minimum inhibitory concentration (MIC) of AR ranged from 13 to 26 mM. The bactericidal activity of AR was evaluated by a killing assay with multiples of MIC, and it was recognized to depend on its dose. The combined effects of AR and antibiotics frequently used for the treatment of infections caused by Gram-positive and Gram-negative bacteria, such as amikacin (AN), ciprofloxacin, imipenem and levofloxacin, were examined. As a result, AR did not interfere with these antibiotic activities against 12 MRSA isolates selected and showed the advanced effect of growth inhibition in combination with antibiotics. Moreover, the inhibitory effects of AR were similar to those of AN, an antibiotic with known adverse effects, some serious. These findings show that AR is a naturally formed antimicrobial agent present in thermally processed foods with potential health benefits in medical practice.  相似文献   

Do Compost and Vermicompost Improve Macronutrient Retention and Plant Growth in Degraded Tropical Soils?     

EP. Jouquet  E. Bloquel  T. Thu Doan  M. Ricoy  D. Orange  C. Rumpel 《Compost science & utilization》2013,21(1):15-24

Soil degradation and water pollution are widespread land degradation problems in Southeast Asia. Policy makers are currently faced with the challenge of designing and implementing strategies to maintain soil fertility and avoid off-site effects. The aim of this study was to determine the effect of organic substrate amendments on soil properties, nutrient leaching and the growth of Ipomea aquatica in an acidic degraded soil from northern Vietnam. Plants were grown in an Acrisol in buckets under natural weather conditions for two months. The same amount of nutrients was applied either in a purely synthetic form (mineral fertilizers) or as two alternative organic substrates (three month old compost or vermicompost from buffalo dung) plus additional amounts of synthetic mineral nutrients to ensure the same quantity of NPK. The influence of these respective substrates on the soil's physical and chemical properties as well as plant growth was examined. Both compost and vermicompost led to an improvement in soil properties with an increase in the pH, soil organic matter and nutrient content, compared to soil fertilized with synthetic mineral products. The highest plant productivity was obtained with vermicompost and synthetic fertilizers, with no significant difference between these two treatments. Chemical fertilization, however, is the least effective practice based on the amount of nutrients leached from the soil (about 38% of N and 22% of K, compared to less than 10 and 5% of N and K with organic amendments). P leaching was not influenced by the fertilizer treatments. In conclusion, vermicompost does appear to be a relevant alternative to chemical fertilizers because it leads to similar enhancements in plant growth, at the same time as increasing soil quality and decreasing nutrient leaching.  相似文献   

Nonstationary Phase of the Plio-Pleistocene Asian Monsoon     

SC Clemens  DW Murray  WL Prell 《Science (New York, N.Y.)》1996,274(5289):943-948

Paleoclimate records indicate that the strength of the Asian summer monsoon is sensitive to orbital forcing at the obliquity and precession periods (41,000 and 23,000 years, respectively) and the extent of Northern Hemisphere glaciation. Over the past 2.6 million years, the timing (phase) of strong monsoons has changed by approximately 83 degrees in the precession and approximately 124 degrees in the obliquity bands relative to the phase of maximum global ice volume (inferred from the marine oxygen isotope record). These results suggest that one or both of these systems is nonstationary relative to orbital forcing.  相似文献