Consulta: creatorFacets:"Meireles,MV"
Registros recuperados: 4
Data/hora: 06/06/2024 09:56:42

Helminthic Parasites of Chickens (Gallus Domesticus) in Different Regions of São Paulo State, Brazil
Provedor de dados: Revista Brasileira de Ciência Avícola
Autores: Silva,GS da; Romera,DM; Fonseca,LEC; Meireles,MV.
Abstract The Brazilian poultry industry is an outstanding national and international agribusiness sector. Among the Brazilian states, São Paulo is the largest producer of commercial eggs and the fourth largest producer and exporter of chicken meat. Alternatively, semi-intensive and/or organic poultry production have also obtained a significant share of the domestic market as a result of consumer demand. Helminths affect the performance of the birds, causing significant direct or indirect losses. The objective of the present study was to identify the main helminth species present in chickens reared in 17 municipalities of the state of São Paulo. In total, 359 adult birds were investigated. The birds were reared in different housing systems and were obtained...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Helminths; Cestodes; Nematodes; Trematodes; Chicken.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100163

Cryptosporidium infection in ostriches (Struthio camelus) in Brazil: clinical, morphological and molecular studies
Provedor de dados: Revista Brasileira de Ciência Avícola
Autores: Santos,MMAB; Peiró,JR; Meireles,MV.
Avian cryptosporidiosis has been reported in more than 30 species of birds. To date, the species infecting birds are C. baileyi, C. galli and C. meleagridis. In this study, the morphological, clinical and molecular characteristics of a Brazilian ostrich isolate of Cryptosporidium are described. The oocysts of this Brazilian isolate are larger and more elongated than those of Cryptosporidium previously reported in ostriches, which were morphologically similar to C. meleagridis. Morphological, biological and molecular analyses demonstrated similarity of this ostrich isolate with C. baileyi, suggesting that there are at least two Cryptosporidium species infecting ostriches; one with molecular, biological and morphological characteristics related to C....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clinical signs; Cryptosporidium; Morphology; Ostriches; PCR-RFLP.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000200008

Identification of Eimeria mitis and Eimeria praecox in broiler feces using polymerase chain reaction
Provedor de dados: Revista Brasileira de Ciência Avícola
Autores: Meireles,MV; Roberto,LO; Riera,RF.
There are few reports concerning the epidemiology of Eimeria praecox and Eimeria mitis in Brazil. In the present experiment, the polymerase chain reaction (PCR) was used to identify these species in 156 samples of broiler chicken feces from several Brazilian states and the Federal District. Oocysts present in feces samples were purified by sodium chloride flotation followed by addition of DNAzol reagent (Invitrogen®) for extraction of genomic DNA. DNA was precipitated and stored following DNAzol reagent manufacture's instructions. The primers and PCR conditions were as described by Schnitzler et al. (1999). In the 156 field samples analyzed by PCR, 70 and 45 were positive for E. praecox and E. mitis, respectively. In this study we have shown that DNA...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diagnosis; Eimeria mitis; Eimeria praecox; Epidemiology; Polymerase chain reaction.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000400010

Seasonal variation of Alphitobius diaperinus population in broiler facilities in the center-north region of the state of São Paulo
Provedor de dados: Revista Brasileira de Ciência Avícola
Autores: Camargo Neto,AF; Tallarico,E; Capriogli,MA; Soares,VE; Meireles,MV; Silva,GS.
The seasonality of Alphitobius diaperinus population was studied during different seasons during one year, in broiler facilities located in the center-north region of the State of São Paulo. Parasite counting was weekly carried out by the use of traps adapted from the modified model of Arends. During the experimental period, facilities were not submitted to chemical treatment, and the litter was changed between flocks. A lower number of adults and larvae was observed during autumn, with the peak registered in the summer. There was no significant difference between spring and winter averages (adults and larvae), and between spring and summer averages (adults). Average temperatures in the facilities varied from 23.4ºC (winter) to 27.1ºC (spring). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alphitobius diaperinus; Broiler chickens; Monitoring; Seasonality.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300008