The impact of agricultural extension services on social capital: an application to the Sub-Saharan African Challenge Program in Lake Kivu region     

Fédes van Rijn  Ephraim Nkonya  Adewale Adekunle 《Agriculture and Human Values》2015,32(4):597-615

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Physiological Response of Multiple Contrasting Rice (Oryza sativa L.) Cultivars to Suboptimal Temperatures          下载免费PDF全文

M. M. Rachoski  A. Vidal  O. A. Ruiz  A. B. Menéndez  A. A. Rodríguez 《Journal of Agronomy and Crop Science》2015,201(2):117-127

The physiological response of multiple rice cultivars, eighteen initially and eight cultivars later on, to suboptimal temperatures (ST) conditions was investigated in laboratory and outdoor experimental conditions. Treatment with ST decreased growth in different extents according to the cultivar and affected the PSII performance, determined by chlorophyll fluorescence fast‐transient test, and stomatal conductance, regardless the experimental condition. Two groups of cultivars could be distinguished on the base of their growth and physiological parameters. The group of cultivars presenting higher growths displayed optimal JIP values, and higher instantaneous water use efficiency (WUE_i), due to a lower Gs under ST, unlike cultivars showing lower growth values, which presented worse JIP values and could not adjust their Gs and hence their WUE_i. In this work, we detected at least two cultivars with superior tolerance to ST than the cold tolerant referent Koshihikari. These cultivars could be used as parents or tolerance donors in breeding for new crop varieties. On other hand, positive and significant correlations between data obtained from laboratory and outdoor experiments suggest that laboratory measurements of most of the above mentioned parameters would be useful to predict the response of rice cultivars to ST outdoor.  相似文献   

Characterization and Gene Mapping of a Lesion Mimic Mutant g303 in Rice     

LIU Lin  #  ZHANG Ying xin  #  LI Zhi  LIU Qun en  YU Ning  SUN Bin  YANG Zheng fu  ZHOU Quan  CHENG Shi hua  CAO Li yong 《中国水稻科学》2014,28(5):465

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Validating an empiric sulfadiazine–trimethoprim dosage regimen for treatment of Escherichia coli and Staphylococcus delphini infections in mink (Neovison vison)     

Amir Atabak Ronaghinia  Nanett Kvist Nikolaisen  Stine Green Hansen  Helle Harding Poulsen  Henrik Lauritz Frandsen  Tina Struve  Pierre‐Louis Toutain  Peter Damborg 《Journal of veterinary pharmacology and therapeutics》2021,44(1):93-106

Antimicrobial agents are used extensively off‐label in mink, as almost no agents are registered for this animal species. Pharmacokinetic (PK) and pharmacodynamic (PD) data are required to determine antimicrobial dosages specifically targeting mink bacterial pathogens. The aims of this study were to assess, in a PKPD framework, the empirical dosage regimen for a combination of trimethoprim (TMP) and sulfadiazine (SDZ) in mink, and secondarily to produce data for future setting of clinical breakpoints. TMP and SDZ PK parameters were obtained experimentally in 22 minks following IV or oral administration of TMP/SDZ (30 mg/kg, i.e. 5 mg/kg TMP and 25 mg/kg SDZ). fAUC/MIC with a target value of 24 hr was selected as the PKPD index predictive of TMP/SDZ efficacy. Using a modeling approach, PKPD cutoffs for TMP and SDZ were determined as 0.062 and 16 mg/L, respectively. By incorporating an anticipated potentiation effect of SDZ on TMP against Escherichia coli and Staphylococcus delphini, the PKPD cutoff of TMP was revised to 0.312 mg/L, which is above the tentative epidemiological cutoffs (TECOFF) for these species. The current empirical TMP/SDZ dosage regimen (30 mg/kg, PO, once daily) therefore appears adequate for treatment of wild‐type E. coli and S. delphini infections in mink.  相似文献   

Origin and distribution of facial nerve anatomy in van cats     

İsmail Hakkı Nur  William Pérez  Horst Erich König 《Anatomia, histologia, embryologia》2021,50(3):658-667

This study aims to reveal the morphological properties of facial nerve and the middle ear in Van cats. Study material was composed of 6 female Van cats. Dissections were performed under a Zoom Stereo Microscope. There was no plexus buccalis in Van cats. The chorda tympani was observed to pass through an opening in the tympanic cavity, emerge through a small opening just behind the retroarticular process, and join the lingual nerve. A rounded anatomical formation with a size of 2.75 ± 0.3 mm was found to be located within the mastoid process of the temporal bone between the facial nerve and the auricular branch of the vagus nerve. The stapes nerve was not present. The geniculate ganglion was very prominent and about 1.00 mm high. The deep petrosal nerve was observed to emerge from the plexus tympanicus. The bulla tympanica was 18.96 ± 0.10 mm long, 13.03 ± 0.20 mm wide and 13.16 ± 0.20 mm high. After leaving the mandibular nerve, the n.tensoris tympani coursed caudally around the a.maxillaris, formed an ansa, entered the tympanic cavity through the canalis musculotubarius and reached an end in the m. tensor tympani. Due to the scarcity of studies on the middle ears of Van cats, it is thought that this study will fill a gap in the field of veterinary anatomy.  相似文献   

Quantitative sensory testing of the equine face     

Kata O. Veres-Nyéki  József Nyéki  Gábor Bodó  Claudia Spadavecchia 《Equine veterinary journal》2021,53(1):177-185

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Immunohistochemical expression of HER - 2 and Ki - 67 in granulosa cell tumor in bitches     

Ana Carina Heil da Silva Matos  Angélica Consalter  Bárbara Paula dos Santos Batista  Ana Beatriz Monteiro Fonseca  Ana Maria Reis Ferreira  Juliana da Silva Leite 《Reproduction in domestic animals》2021,56(4):667-672

Granulosa cell tumour, an ovarian neoplasm of stromal origin, is an important tumour related to oestrogenic dominance syndrome and cystic endometrial hyperplasia–pyometra complex. In order to analyse ovarian tumour´s malignant potential, immunohistochemical markers can be used, such as anti-HER2 and anti-Ki-67. The aim of this study was to evaluate the expression of immunohistochemical markers HER-2 and Ki-67 in granulosa cell tumour from bitches´ ovaries. In HER-2 immunomarker analysis using the HercepTest^® method, most tumours were classified as 2+ (moderate labelling). Concerning Ki-67 immunomarker, only one case was described as having a high proliferative index. An association was found between immunostained cell percentage by anti-HER-2 antibodies and high pleomorphism, represented by the pattern of follicular/trabecular tumour arrangement. There was no correlation between anti-Ki-67 and anti-HER-2 antibody immunostaining intensities, probably due to only one case with a high Ki-67 index. With an effective protocol for HER-2 and Ki-67 immunohistochemical identification in granulosa cell tumours in bitches, it was possible to characterize this neoplasm proliferation profile.  相似文献   

Production,chemical composition,and fatty acid profile of milk from buffaloes fed with cupuaçu (Theobroma grandiflorum) cake and murumuru (Astrocaryum murumuru) cake in the Eastern Amazon     

André Guimarães Maciel e Silva  Suely Cristina Gomes de Lima  Pedro Danilo de Oliveira  Michel dos Santos Moraes  Célia Maria Costa Guimarães  Jamile Andréa Rodrigues da Silva  Alexandre Rossetto Garcia  Benjamim de Souza Nahúm  Lilaine de Sousa Neres  Gerlane Nunes Noronha  José de Brito Lourenço Júnior 《Animal Science Journal》2021,92(1):e13576

The objective was to evaluate the effect of concentrate supplementation using by-products of the Amazonian industry on milk production, milk composition, and milk fatty acid profile of dairy buffaloes. Twelve lactating buffaloes (544.5 ± 35.6 kg, 6.4 ± 2.2 years old, 59 ± 6 days in milk) were allotted in a pasture of Mombaça grass and managed under rotational grazing (4 days occupancy/28 days rest). A 3 × 3 Latin square was adopted, and each animal alternately received three supplementary treatments based on corn bran + soybean meal or cupuaçu cake or murumuru cake for 21 days per treatment. Murumuru cake increased the levels of lauric acid and myristic acid in the milk (p < 0.05). Murumuru cake reduced the unsaturated fatty acid contents in the milk compared with animals fed control diet or cupuaçu cake (24.27% vs. 25.24% vs. 25.08%). The n-6/n-3 ratio was 2.6, 1.97, and 2.0 in the control, cupuaçu, and murumuru groups, respectively. Based on this parameter, cakes made from cupuaçu as well as murumuru could be considered to be adequate for inclusion in dairy water buffalo feed. However, the murumuru cake addition requires some caution because its use induces the secretion of higher levels of lauric and myristic fatty acids that are related to human cardiovascular disease.  相似文献   

Suspected hepatotoxicity secondary to trazodone therapy in a dog     

Alexandria Arnold  Ashley Davis  Tina Wismer  Justine A. Lee 《Journal of Veterinary Emergency and Critical Care》2021,31(1):112-116

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‘Star Ruby’ grapefruit and ‘Clemenules’ mandarin trees show different physiological and agronomic responses to irrigation with saline water     

J. G. Pérez-Pérez  F. García-Sánchez  J. M. Robles  P. Botía 《Irrigation Science》2015,33(3):191-204

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