IMAGING DIAGNOSIS—CONVENTIONAL AND FUNCTIONAL MAGNETIC RESONANCE IMAGING OF A BRAIN ABSCESS IN A GOAT     

Matthias Dennler  Inés Carrera  Katrin Beckmann  Julia Ritz  Maja Rütten  Patrick R. Kircher 《Veterinary radiology & ultrasound》2014,55(1):68-73

A 2‐month‐old female goat was presented for depressed mental status and multifocal central neurologic signs 3 weeks after hot‐iron disbudding. Conventional magnetic resonance imaging (MRI) findings included a large intra axial mass in the left frontal lobe that was T2 hyperintense and T1 hypointense centrally with a contrast‐enhancing peripheral capsule and perilesional T2 hyperintensity. A restrictive pattern was present in diffusion‐weighted imaging. Magnetic resonance spectroscopy demonstrated an increased amount of succinate, acetate, amino acids, lipids; minimal amounts of lactate; and decreased amounts of N‐acetyl aspartate and choline. A cerebral abscess due to Trueperella pyogenes was confirmed from necropsy and tissue culture.  相似文献   

吉林省稻穗瘟药剂防治指标的初步研究     

吉林省稻瘟病预测技术研究协作组 《吉林农业大学学报》1992,14(3):4-8

文中确定了吉林省稻穗瘟病的经济损失允许水平:水稻黄熟期穗瘟发病率8～10％或穗瘟病情指数3～4。又根据吉林省有代表性的八个试验点五年的稻叶、穗瘟系统调查资料分析认为，决定吉林省生产中稻穗瘟最终病情的因素有三个:一是田间叶瘟基数;二是抽穗扬花期的气象条件;三是由当地生态栽培条件、水稻品种及稻瘟病菌生理小种群体共同决定的稻株抗病力。在此基础上提出吉林省稻穗瘟药剂防治指标。  相似文献   

Habitat split and the global decline of amphibians   总被引：2，自引：0，他引：2  

Becker CG  Fonseca CR  Haddad CF  Batista RF  Prado PI 《Science (New York, N.Y.)》2007,318(5857):1775-1777

The worldwide decline in amphibians has been attributed to several causes, especially habitat loss and disease. We identified a further factor, namely "habitat split"-defined as human-induced disconnection between habitats used by different life history stages of a species-which forces forest-associated amphibians with aquatic larvae to make risky breeding migrations between suitable aquatic and terrestrial habitats. In the Brazilian Atlantic Forest, we found that habitat split negatively affects the richness of species with aquatic larvae but not the richness of species with terrestrial development (the latter can complete their life cycle inside forest remnants). This mechanism helps to explain why species with aquatic larvae have the highest incidence of population decline. These findings reinforce the need for the conservation and restoration of riparian vegetation.  相似文献   

Effects of adding high-dosing Aspergillus oryzae phytase to corn–wheat–soybean meal-based basal diet on growth performance,nutrient digestibility,faecal gas emission,carcass traits and meat quality in growing-finishing pigs     

De Xin Dang  In Ho Kim 《Journal of animal physiology and animal nutrition》2021,105(6):1056-1062

This study tests the effects of supplementation of high-dosing Aspergillus oryzae phytase into the corn – wheat – soybean meal (SBM)-based basal diet on growth performance, nutrient digestibility, faecal gas emission, carcass traits and meat quality in growing-finishing pigs (29.73–110.86 kg live weight; 70-day-old to 166-day-old). A total of 56 crossbred pigs [(Landrace × Yorkshire) × Duroc] were divided into two dietary groups for a 96-day experiment (growing period, days 0 – 42; finishing period, days 43 – 96) with a completely randomized block design. There were seven replicate pens in each dietary group, and each pen has four pigs (two barrows and two gilts). The dietary treatments consisted of a corn – wheat – SBM-based nutrient sufficient basal diet or the basal diet supplemented with 1500 FTU/kg A. oryzae phytase. One phytase unit (FTU) was defined as the amount of enzyme that catalyses the release of one micromole phosphate from phytate/min at 37°C and pH 5.5. Higher average daily gain and lower feed conversion ratio were observed in growing-finishing pigs consuming a high-dosing A. oryzae phytase supplementing diet during days 0 – 42 and 0 – 96. Supplementing high-dosing A. oryzae phytase to the diet of growing-finishing pigs increased apparent total tract digestibility of phosphorus on days 42 and 96. Moreover, growing-finishing pigs fed the diet supplemented with high-dosing A. oryzae phytase had higher carcass back-fat thickness than those fed the control diet. However, the faecal gas emission and meat quality were not affected by high-dosing A. oryzae phytase supplementation. In conclusion, dietary supplementation of high-dosing A. oryzae phytase (1500 FTU/kg) had beneficial effects on the growth performance, apparent phosphorus digestibility and carcass back-fat thickness in growing-finishing pigs.  相似文献   

Evaluation of the combined effects of different dose levels of Zinc oxide with probiotics complex supplementation on the growth performance,nutrient digestibility,faecal microbiota,noxious gas emissions and faecal score of weaning pigs     

Huan Wang  Kun Phil Kim  In Ho Kim 《Journal of animal physiology and animal nutrition》2021,105(2):286-293

This study was conducted to assess the effects of different dose levels of zinc oxide (ZnO) combined with probiotics complex supplementation on the growth, performance, nutrient digestibility, faecal lactobacillus and Enterobacteria counts, noxious gas emissions and faecal score of weaned piglets. A total of 180 crossbred weaning pigs ([Yorkshire × Landrace] × Duroc; 6.61 ± 1.29 kg [mean ± SE]; 28 days old) were used in a 42-day trial. All pigs were randomly allotted to 1 of 4 treatment diets based on initial BW and sex (9 replicate pens/treatment; 2 gilts and 3 barrows/pen). Dietary treatment groups were as follows: CON, basal diet +ZnO 3,000 ppm; BZS, basal diet +ZnO 2,100 ppm +0.1% SynerZymeF10; BZS1, basal diet +ZnO 1,200 ppm +0.1% SynerZymeF10; BZS2, basal diet +ZnO 300 ppm +0.1% SynerZymeF10. During the phase 3, decreasing the ZnO concentration led to a linear reduction in ADG (p = 0.044), and the ADG was lower (p < 0.05) in BZS2 compared with CON treatment during the whole experimental period. The effects of dietary ZnO with probiotics complex were not detected (p > 0.05) on nutrient digestibility, Lactobacillus and E. coli counts, faecal gas emissions and faecal scores. In conclusion, the diet supplementation of ZnO (1,200 ppm) with probiotics complex has been shown to have comparable efficacy to ZnO (3,000 ppm) diet on growth performance, nutrient digestibility, faecal microbiota, noxious gas emissions and faecal score of weaning pigs.  相似文献   

Ochratoxin A: Carryover from animal feed into livestock and the mitigation strategies     

Abirami Ramu Ganesan  Balamuralikrishnan Balasubramanian  Sungkwon Park  Rajesh Jha  Ines Andretta  Archibold G. Bakare  In Ho Kim 《动物营养（英文）》2021,7(1):56

This review aims to highlight the effects of ochratoxin A (OTA) in the feed of meat-producing animals. The accumulation of OTA in feed and its distribution in various farm animals were compared and evaluated. Primarily, the oral administration of OTA-contaminated feed and the predisposition in an animal''s vital organ were critically examined in this work. The collated reports show that OTA directly associated with endemic nephropathy and its high concentration leads to degeneration of liver cells, and necrosis of intestinal and lymphoid tissues. At present, limited reports are available in the recent literature on the problems and consequences of OTA in feed. Therefore, this review focused on the OTA carryover from feed to farm animals and the interaction of its secondary metabolites on their biochemical parameters. Hence, this report provides greater insights into animal health related to OTA residues in meat and meat products. This article also explores mitigation strategies that can be used to prevent the carryover effects of OTA in livestock feeds and the effects in the food chain.  相似文献   

Influence of cultivar on quality parameters and chemical composition of strawberry fruits grown in Brazil   总被引：1，自引：0，他引：1  

Cordenunsi BR  Oliveira do Nascimento JR  Genovese MI  Lajolo FM 《Journal of agricultural and food chemistry》2002,50(9):2581-2586

Six strawberry cultivars grown on the same commercial plantation in Brazil were evaluated for their chemical composition and quality attributes at the ripe stage. The profiles of the main soluble sugars, ascorbic acid, and anthocyanins were also obtained during the developmental stages. Results showed significant differences among cultivars in all of the investigated parameters. Cv. Campineiro showed an average value for texture of 0.63 N, half the value found for cv. Oso Grande. Anthocyanin content ranged from 13 (cv. Campineiro) to 55 (cv. Mazi) mg/100 g. Total ascorbic acid found for cv. Campineiro (85 mg/100 g) was twice the amount found in cv. Dover (40 mg/100 g). Fructose was the predominant soluble sugar in almost all cultivars. The proportion among the main soluble sugars (fructose, sucrose, and glucose) was similar for Oso Grande and Toyonoka cultivars. The flavonol content (quercetin plus kaempferol derivatives) ranged from 2.7 to 7.1 mg/100 g, with a mean value of 6.1 mg/100 g, whereas free ellagic acid ranged from 0.9 to 1.9 and total phenolics varied from 159 to 289 (mean 221) mg/100 g.  相似文献   

Single nucleotide polymorphism discovery and linkage mapping of lipoxygenase-2 gene (Lx 2) in soybean     

Moon Young Kim  Bo-Keun Ha  Tae-Hwan Jun  Eun-Young Hwang  Kyujung Van  Yong In Kuk  Suk-Ha Lee 《Euphytica》2004,135(2):169-177

Lipoxygenase-2 (Lx ₂) in soybean seed is mainly responsible for generation of grassy-beany and bitter flavors. Genetic elimination of this flavor can be accelerated by the development of single nucleotide polymorphism (SNP) markers linked to Lx ₂. A frame map based on simple sequence repeat (SSR) markers was constructed first using a recombinant inbred line (RIL) population of Pureunkong × Jinpumkong 2. Sixty-five SSR markers were incorporated into 13 linkage groups (LGs) spanning a total of 737 cM. Among five primer pairs designed from the Lx ₂ gene sequence, one produced an amplicon with sequence variations between Pureunkong and Jinpumkong 2. Three SNPs, T/C, G/A and C/A, were identified at 251,367 and 420 bp, respectively, in the intron region of the 804 bp amplified product. Using single base chain extension based on the capture probe sequence in the 5' region of the T/C SNP, the 90 RILs were genotyped for each allele of Lx ₂. The allelic segregation for the SNP linked toLx ₂ was in accordance with the expected ratio of 1:1 in the RIL population. Based on the results of linkage analysis between Lx ₂ and the SSR markers, Lx ₂ was found to be positioned on one end of LG F in the frame map, flanked by the SSR markers Satt522 and Sat074. This study demonstrates that SNP markers closely linked to Lx ₂can be developed to facilitate marker-assisted selection and fine mapping of the region around this locus. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

External contamination of broilers by Campylobacter spp. increases from the farm to the slaughterhouse     

Â. J. Mendes  N. L. Santos-Ferreira  F. M. Costa  E. P. Lopes  J. Freitas-Silva  Â. S. Inácio 《British poultry science》2020,61(4):400-407

ABSTRACT

1. In this study, classical and molecular microbiological methods for detection and quantification of Campylobacter spp. were used to estimate their prevalence in faecal samples and skin swabs collected from 31 broiler flocks (20 farms) in Portugal, and measure the impact of transport-related factors on the expected rising excretion rates from the farm to the slaughterhouse.

2. Data on husbandry practices and transport conditions were gathered, including time in transit, distance travelled or ante-mortem plant-holding time.

3. A generalised linear mixed model was used to evaluate the significance of a potential post-transport rise in Campylobacter spp. counts and to assess risk determinants.

4. At least one flock tested positive for Campylobacter spp. in 80% of the sampled farms. At the slaughterhouse, Campylobacter spp. were detected in all faecal samples, C. jejuni being the most commonly isolated.

5. A post-transport rise of Campylobacter spp. counts from skin swabs was observed using classical microbiological methods (from a mean of 1.43 to 2.40 log₁₀ CFU/cm²) and molecular techniques (from a mean of 2.64 to 3.31 log₁₀ genome copies/cm²).

6. None of the husbandry practices or transport-related factors were found to be associated with Campylobacter spp. counts.

7. This study highlights the need for more research to better understand the multi-factorial nature of Campylobacter spp., a public health threat that was found to be highly prevalent in a sample of Portuguese poultry farms.  相似文献   

Soil mapping for precision agriculture using support vector machines combined with inverse distance weighting     

Pereira  Gustavo Willam  Valente  Domingos Sárvio Magalhães  de Queiroz  Daniel Marçal  Santos  Nerilson Terra  Fernandes-Filho  Elpídio Inácio 《Precision Agriculture》2022,23(4):1189-1204

Precision Agriculture - Kriging has been shown to be the best interpolator to interpolate maps in precision agriculture. However, Kriging requires a high number of sampling points to generate...  相似文献