Ciencia Rural最新文献_第9页

Efficacy assessment of an intramammary formulation based on soluble polypyrrole in cows with experimentally induced mastitis 以可溶性聚吡咯为基础的乳内制剂对实验性乳腺炎奶牛的疗效评价

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-02-13 DOI: 10.1590/0103-8478cr20220047

Ana Paula de Faria Alves, Marcos Pinheiro do Amaral, D. Silva, Renata de Faria Silva Souza, Sílvio Alan Gonçalves Bomfim Reis, F. J. D. Silva Júnior, H. P. Oliveira, R. M. Peixoto, M. Costa

{"title":"Efficacy assessment of an intramammary formulation based on soluble polypyrrole in cows with experimentally induced mastitis","authors":"Ana Paula de Faria Alves, Marcos Pinheiro do Amaral, D. Silva, Renata de Faria Silva Souza, Sílvio Alan Gonçalves Bomfim Reis, F. J. D. Silva Júnior, H. P. Oliveira, R. M. Peixoto, M. Costa","doi":"10.1590/0103-8478cr20220047","DOIUrl":"https://doi.org/10.1590/0103-8478cr20220047","url":null,"abstract":"RESUMO: Considerando a necessidade de terapias alternativas para a mastite bovina, uma inflamação, normalmente de causa infecciosa, de alta prevalência e de alto impacto econômico nas fazendas leiteiras, avaliou-se a eficácia antimicrobiana, in vivo, de uma formulação intramamária à base de polipirrol (PPy) solúvel, um polímero condutor promissor para aplicações biomédicas, especialmente como potente antibacteriano. Neste ensaio, quartos mamários de vacas holandesas sadias (n = 8) foram inoculados com Staphylococcus aureus e tratados, por via intramamária, com formulação experimental à base de PPy solúvel (5%) e com formulação comercial à base de sulfato de gentamicina. O efeito desses tratamentos foi avaliado com a realização de lactoculturas, da Contagem Bacteriana Total (TBC), da Contagem de Células Somáticas (SCC) e da análise da composição do leite das amostras obtidas de quartos mamários, em sete momentos experimentais. Avaliação hematológica dos animais também foi realizada. A aplicação intramamária de três doses da formulação experimental à base de PPy solúvel resultou em maiores log/mL da TBC e da SCC quando comparadas ao grupo controle positivo e ao grupo que recebeu sulfato de gentamicina. A administração da formulação experimental não induziu alterações na composição do leite e nos parâmetros hematológicos. Alguns fatores farmacocinéticos e farmacodinâmicos do PPy solúvel podem ser atribuídos a ineficácia antimicrobiana da pomada experimental. Outras pesquisas devem ser realizados em prol do desenvolvimento de formulações que permitam a atuação antibacteriana do PPy solúvel no ambiente intramamário de vacas leiteiras.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67635665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Agronomic performance of Humuluslupulus L. varieties cultivated in organic and conventional systems in São Paulo center-west, Brazil 巴西圣保罗中西部有机栽培和常规栽培下葎草品种的农艺性能

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-02-10 DOI: 10.1590/0103-8478cr20210704

G. Fortuna, J. Gomes, Olivia Pak Campos, Caio Scardini Neves, F. Bonfim

{"title":"Agronomic performance of Humuluslupulus L. varieties cultivated in organic and conventional systems in São Paulo center-west, Brazil","authors":"G. Fortuna, J. Gomes, Olivia Pak Campos, Caio Scardini Neves, F. Bonfim","doi":"10.1590/0103-8478cr20210704","DOIUrl":"https://doi.org/10.1590/0103-8478cr20210704","url":null,"abstract":"ABSTRACT: Hop is a multifunctional specie; however, a large part of its production is destined for the beer market. In Brazil, all hop demand is imported, which has aroused interest in national production. Genetic material and cultivation systems can influence hops production. Thus, this study evaluated morphological and productive performance of hop varieties grown under organic and conventional management in the central-west region of São Paulo, Brazil. The hop yard was installed in the experimental area of the FCA/UNESP (São Paulo State University, School of Agriculture) - Botucatu, in November 2018, the data were collected in second year of production. A randomized block design was adopted, in 2 x 5 Split-Plot, being the main factor: cultivation systems (organic and conventional), and secondary factor: hop varieties (Columbus, Chinook, Nugget, Cascade, and HallertauMittelfrüeh), with four blocks and four plants per plot. Crop-specific morphological and productive parameters were evaluated. The results showed no significant influence of cultivation systems in morphological parameters. Regarding the varieties, Chinook, Cascade, and Nugget stand out for cone length. Columbus, Chinook and Cascade showed higher yields when grown in organic system, obtaining 1100.66, 1088.27 and 940.40 g of cones per plant, respectively. While, HallertauMittelfrüeh variety was the least productive in both systems, in organic system with 160.50 g per plant production, and 267.84 g per plant in conventional system, and, also showing lower cycle compared to the others.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67633348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial and temporal distribution and bioinsecticides control of olive leaf moth in an olive orchard in Southwest of Paraná, Brazil 巴西帕拉纳<e:1>西南部橄榄园橄榄叶蛾时空分布及生物杀虫剂防治

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-02-10 DOI: 10.1590/0103-8478cr20220008

Gilberto C C Carmona, G. Andrade, I. Citadin, R. H. Pertille, J. R. R. Campos, A. Rohr, M. A. Danner

{"title":"Spatial and temporal distribution and bioinsecticides control of olive leaf moth in an olive orchard in Southwest of Paraná, Brazil","authors":"Gilberto C C Carmona, G. Andrade, I. Citadin, R. H. Pertille, J. R. R. Campos, A. Rohr, M. A. Danner","doi":"10.1590/0103-8478cr20220008","DOIUrl":"https://doi.org/10.1590/0103-8478cr20220008","url":null,"abstract":"ABSTRACT: We verified the spatial and temporal distribution of the olive leaf moth (Palpita forficifera Munroe, 1959) in a new potential region for olive cultivation and evaluated the bioinsecticides effectiveness to control this pest. The experimental orchard composed by Koroneiki and Arbequina cultivars was planted in Pato Branco, Southwest region of Paraná, Brazil. In the field, larvae counts were performed weekly on 25 plants of each cultivar, for 12 months, to verify the spatial and temporal distribution. Furthermore, in laboratory conditions, second instar larvae of P. forficifera were fed with olive leaves treated with Azadirachta indica oil, Bacillus thuringiensis, Metarhizium anisopliae and Beauveria bassiana, and the effectiveness in the larvae mortality was used to compare four bioinsecticides and control. The P. forficifera larvae occurred mainly during the three summer months, had a host preference for the ‘Arbequina’ (68.9% of total larvae) and occurred at random distribution patterns throughout the orchard. The A. indica oil and B. thuringiensis both caused almost 100% larvae mortality under laboratory conditions.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67635640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Canine atopic dermatitis: systemic immunomodulatory protocol based on clinical phenotype 犬特应性皮炎:基于临床表型的全身免疫调节方案

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-02-10 DOI: 10.1590/0103-8478cr20220068

Tiago Cunha Ferreira, M. G. M. D. Cunha, D. Nunes-Pinheiro

{"title":"Canine atopic dermatitis: systemic immunomodulatory protocol based on clinical phenotype","authors":"Tiago Cunha Ferreira, M. G. M. D. Cunha, D. Nunes-Pinheiro","doi":"10.1590/0103-8478cr20220068","DOIUrl":"https://doi.org/10.1590/0103-8478cr20220068","url":null,"abstract":"ABSTRACT: Canine atopic dermatitis (cAD) is a multifactorial allergic disease associated with immune dysfunction and abnormal skin barrier. Several immunological mediators play a role in its pathogenesis. Such molecules are produced by the activation of T helper lymphocytes (Th) through polarization to Th1 and/or Th2, which contributes to different lesion patterns. Acute lesions are mediated by an activation of the Th2 cytokine axis, which clinically induces erythema and pruritus. Conversely, in chronic injuries a mixed immune response of Th1/Th2 cytokines occurs, leading to hyperpigmented and lichenified skin. The clinical understanding of these patterns and the mode of action of immunomodulators are crucial for the best clinical management of the atopic patient. In this context, this review discussed the role of the immune response and the immunomodulatory drugs in dogs with atopic dermatitis and suggested a therapeutic protocol based on clinical phenotype. Based on the evidences showed in this review, it is considered appropriate to use immunomodulatory drugs that target cytokine spectrum related with the clinical phenotype of cAD.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67636122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morada Nova lambs’ meat production potential description through morphometric evaluation 通过形态计量学评价描述莫拉达诺瓦羔羊肉品生产潜力

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-02-10 DOI: 10.1590/0103-8478cr20210716

Genilson César Alves, W. Vega, H. Costa, R. Silveira, A. Landim

{"title":"Morada Nova lambs’ meat production potential description through morphometric evaluation","authors":"Genilson César Alves, W. Vega, H. Costa, R. Silveira, A. Landim","doi":"10.1590/0103-8478cr20210716","DOIUrl":"https://doi.org/10.1590/0103-8478cr20210716","url":null,"abstract":"ABSTRACT: Morada Nova breed has a low effective herd, and its white variety is in risk of extinction. The selection of individuals based on breed standard without correlation with productive aptitude is predominant today. We believe that the best way to rescue this valuable genetic resource is to describe its productive potential for commercial use. Thus, this study described the meat production potential of Morada Nova lambs through morphological and zoometric data, performance and carcass characteristics. Twenty-four non-castrated male lambs from two genetic groups were used: Morada Nova red (MNR) and crossbreed Morada Nova (red x Morada Nova white-MNF1) distributed in a completely randomized design. Univariate and multivariate analysis were used. The yields of commercial cuts and the physicochemical characteristics and qualitative measurements of the carcass were similar between the genetic groups. Seven of the 28 characteristics of the carcass were greater in MNF1 lambs. The chest height, rump height and anamorphosis index showed to be important variables in the choice of MN lambs with meat production potential. Based on factor and hierarchical cluster analysis, the Morada Nova beef morphometric index (MNBMI) was created. Both of groups have high thoracic development, ability to produce meat, weight gain, feeding efficiency and breathing capacity, infusing greater rusticity and adaptability; however, the application and validation of the developed index showed superiority for meat production in the crossed lambs. Thus, the MNF1 lambs are a sustainable option for sheep production in drylands.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67633848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Growth, yield and nutrients of sweet cassava fertilized with zinc 施锌对甜木薯生长、产量及营养的影响

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-01-13 DOI: 10.1590/0103-8478cr20220064

Jessica Aparecida da Silva, M. Leonel, A. M. Fernandes, F. G. Garreto, J. Nunes, Ricardo Figueiredo Tajra

引用次数: 0

Epizootiology of canine distemper in naturally infected dogs in Goiânia, Brazil 巴西goi<e:1>尼亚自然感染犬犬瘟热的流行病学研究

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-01-13 DOI: 10.1590/0103-8478cr20220166

Karolina Martins Ferreira Menezes, Gladsthon Divino de Sousa Filho, A. D. Damasceno, Menira Souza, Bruno Benetti Junta Torres

{"title":"Epizootiology of canine distemper in naturally infected dogs in Goiânia, Brazil","authors":"Karolina Martins Ferreira Menezes, Gladsthon Divino de Sousa Filho, A. D. Damasceno, Menira Souza, Bruno Benetti Junta Torres","doi":"10.1590/0103-8478cr20220166","DOIUrl":"https://doi.org/10.1590/0103-8478cr20220166","url":null,"abstract":"ABSTRACT: Although the epizootiological profile of canine distemper in Goiânia is unknown, there is clinical evidence for a high incidence of canine distemper virus (CDV) infection among dogs. Therefore, this study determined the epizootiological characteristics of canine distemper in naturally infected dogs. Data of 46 dogs that tested positive for the CDV based on immunochromatography or reverse transcription-polymerase chain reaction were collected. Data on the sex, breed, age, and vaccination status were obtained from these dogs, and extraneural and neural sign analyses were performed. Although, the infected dogs belonged to both sexes, different breeds, and different age groups, a greater proportion of cases were seen in adults (1-6 years), undefined breeds, and unvaccinated dogs. Among the CDV-positive dogs, 10.87% had been vaccinated. In addition, 4.35% showed neural signs, 8.69% showed extraneural signs, and 86.96% showed both. High lethality was observed, with viral antigen and/or DNA detected in 82.61% dead dogs. Only 8.70% of the total CDV-infected dogs remained alive at the time of their assessment.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67637553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Factors determining farmers’ access to agricultural credit in Turkey 决定土耳其农民获得农业信贷的因素

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-01-13 DOI: 10.1590/0103-8478cr20210916

U. Gültekin

引用次数: 0

Characterization of new late-spring-frost-tolerant apricot hybrids: physical and biochemical fruit quality attributes, volatile aroma compounds 晚春耐霜冻杏新品种鉴定:果实物理生化性状、挥发性香气化合物

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-01-06 DOI: 10.1590/0103-8478cr20220144

Aliseydi Doğan, Karaat Fırat Ege, O. Levent, B. Asma

{"title":"Characterization of new late-spring-frost-tolerant apricot hybrids: physical and biochemical fruit quality attributes, volatile aroma compounds","authors":"Aliseydi Doğan, Karaat Fırat Ege, O. Levent, B. Asma","doi":"10.1590/0103-8478cr20220144","DOIUrl":"https://doi.org/10.1590/0103-8478cr20220144","url":null,"abstract":"ABSTRACT: Late spring frosts is one of the most important restricting abiotic stress factors of apricot growing worldwide. In this study; some physical, biochemical fruit quality characteristics and volatile aroma compounds were determined in fresh fruit samples of thirteen late spring frost tolerant apricot hybrids recently obtained from Turkish apricot breeding programme. A wide variation was reported among apricot genotypes in all of the evaluated physical and biochemical fruit characteristics and also volatile aroma compounds.Fruit size varied between 27.2 and 60.5 g, total soluble solids between 13.6 and 17.4 %, total carotene 26.6 and 42.8 (mg.100 g-1), and total phenolics content 354.2 and 673.1 (GAE.100 g-1). A total of 42 flavor components belonging to various flavor compound groups were identified. The main volatile aroma compound groups detected in the assessed apricot genotypes were; aldehydes, ketones, esters, alcohols, terpenes, acids, and other compounds. Among the detected compounds; Hexanal, 2-Hexenal, 1-Hexanol, 2-Hexen-1-ol, Limonene were the most abundant compounds in terms of concentration. Hexanal varied between 55.8 and 528.5 µg.kg-1, and 2-Hexen-1-ol changed between 25.7 and 297.9 µg.kg-1 fresh weight. Correlation analysis revealed significant correlations among some aroma compounds and biochemical fruit quality characteristics. Significant correlations were reported for esters with titratable acidity (r=0.79) and total carotene (r=-0.61) and aldehydes were found as highly correlated with total soluble solids (r=-0.69). The results of the study will be beneficial in terms of food analysis, cultivation, and breeding studies of apricot.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67636673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Cerebral infarction and thrombotic meningoencephalitis in a calf due to candidiasis 脑梗死和血栓性脑膜脑炎小牛由于念珠菌病

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-01-06 DOI: 10.1590/0103-8478cr20220254

R. C. Alves, Y. G. Soares, F. K. Carvalho, L. A. Maia, C. Barros, F. Riet-Correa, A. Dantas, G. J. Galiza

{"title":"Cerebral infarction and thrombotic meningoencephalitis in a calf due to candidiasis","authors":"R. C. Alves, Y. G. Soares, F. K. Carvalho, L. A. Maia, C. Barros, F. Riet-Correa, A. Dantas, G. J. Galiza","doi":"10.1590/0103-8478cr20220254","DOIUrl":"https://doi.org/10.1590/0103-8478cr20220254","url":null,"abstract":"ABSTRACT: We described a case of cerebral infarction and thrombotic meningoencephalitis due to candidiasis in a seven-month-old calf. The death occurred three days after the onset of apathy, fever, and the head’s lateral deviation to the left. Macroscopic changes in the brain consisted of asymmetry of telencephalic hemispheres; the right hemisphere was enlarged, causing cerebellar herniation. A focally extensive red area was observed on the surface of the right occipital lobe. At cross-sections of the fixed brain, the lesions revealed to be extensive, red-brown, soft or cavitated areas affecting the white and grey matter from the level of the thalamus to the cerebellum and compressing subjacent structures. Histologically, there was acute, coalescent, multifocal necrosupurative meningoencephalitis, associated with vasculitis, congestion, thrombosis, edema, infarction, and intralesional fungal hyphae. The diagnosis of cerebral infarction and thrombotic meningoencephalitis due to candidiasis was made by the pathological changes, the staining and morphological characteristics of the agent, and immunohistochemistry. The cerebral infarction and thrombotic meningoencephalitis in cattle can result from vascular lesions due to infection by Candida sp.; although uncommon, this case demonstrated that candidiasis should be part of a list of differential diagnoses of severe brain injuries in cattle.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67638125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0