Monitoring the resistance of Rhipicephalus microplus to amitraz, flumethrin, coumaphos, and ivermectin on cattle farms in Mexico

2021 ◽  
Vol 26 ◽  
pp. 100644
Author(s):  
Roger I. Rodriguez-Vivas ◽  
Eduardo Ramirez España ◽  
Ivan Lozano Blanco ◽  
Melina M. Ojeda-Chi ◽  
Iris Trinidad-Martinez ◽  
...  
Keyword(s):  
Rhipicephalus Microplus ◽  
Cattle Farms

Survey of Rhipicephalus microplus resistance to ivermectin at cattle farms with history of macrocyclic lactones use in Yucatan, Mexico

2010 ◽  
Vol 172 (1-2) ◽  
pp. 109-113 ◽  
Author(s):  
L.C. Perez-Cogollo ◽  
R.I. Rodriguez-Vivas ◽  
G.T. Ramirez-Cruz ◽  
J.A. Rosado-Aguilar
Keyword(s):  
Rhipicephalus Microplus ◽  
Macrocyclic Lactones ◽  
History Of ◽  
Cattle Farms

Resistance of Rhipicephalus microplus to Amitraz and Cypermethrin in Tropical Cattle Farms in Veracruz, Mexico

2012 ◽  
Vol 98 (5) ◽  
pp. 1010-1014 ◽  
Author(s):  
Agustín Fernández-Salas ◽  
Roger Iván Rodríguez-Vivas ◽  
Miguel Ángel Alonso-Díaz
Keyword(s):  
Rhipicephalus Microplus ◽  
Cattle Farms

Cytotoxic effect of Croton sphaerogynus extracts against Rhipicephalus microplus cell line

Planta Medica ◽  
2015 ◽  
Vol 81 (16) ◽  
Author(s):  
KP Santos ◽  
L Martins ◽  
JM Balanco ◽  
LB Motta ◽  
CM Furlan ◽  
...  
Keyword(s):  
Cell Line ◽  
Cytotoxic Effect ◽  
Rhipicephalus Microplus

Molecular profiling and antimicrobial susceptibility of Escherichia coli O157:H7 isolated in Bulgaria

2020 ◽  
Vol 23 (3) ◽  
pp. 310-318
Author(s):  
K. Koev ◽  
T. Stoyanchev ◽  
G. Zhelev ◽  
P. Marutsov ◽  
K. Gospodinova ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Escherichia Coli O157 ◽  
Acid Sensitivity ◽  
Lower Extent ◽  
Phenotype Analysis ◽  
Anal Swab ◽  
Amoxicillin Clavulanic Acid ◽  
Primary Identification ◽  
Stx1 Gene ◽  
Cattle Farms

The purpose of this study was to detect the presence of shiga-toxin producing Escherichia coli (STEC) in faeces of healthy dairy cattle and to determine the sensitivity of isolates to several anti­microbial drugs. A total of 1,104 anal swab samples originating from 28 cattle farms were examined. After the primary identification, 30 strains were found to belong to serogroup О157. By means of conventional multiplex PCR, isolates were screened for presence of resistance genes stx1, stx2 and eaeА. Twenty-nine strains possesses amplicons with a size corresponding to genes stx2 and eaeA, one had amplicons also for the stx1 gene and one lacked amplicons of all three genes. Twenty-eight strains demonstrated amplicons equivalent to gene H7. The results from phenotype analysis of resistance showed preserved sensitivity to ceftriaxone, ceftazidime, cefotaxime, cephalothin, streptomycin, gentamicin, tetracycline, enrofloxacin and combinations sulfamethoxazole/trimethoprim and amoxicillin/clavulanic acid. Sensitivity to ampicillin was relatively preserved, although at a lower extent.

Economic performance evaluation of Brangus and Nellore cattle breed naturally infested with Rhipicephalus microplus in an extensive production system in Central-West Brazil

2019 ◽  
Vol 78 (4) ◽  
pp. 565-577 ◽  
Author(s):  
Paulino Bonatte Junior ◽  
Vinicius da Silva Rodrigues ◽  
Marcos Valério Garcia ◽  
Leandro de Oliveira Souza Higa ◽  
Namor Pinheiro Zimmermann ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Economic Performance ◽  
Production System ◽  
Cattle Breed ◽  
Rhipicephalus Microplus ◽  
Nellore Cattle

scholarly journals Identification and genotyping of a new subtype of bovine viral diarrhea virus 1 isolated from cattle with diarrhea

2021 ◽  
Vol 166 (4) ◽  
pp. 1259-1262
Author(s):  
Bin Tian ◽  
Dongjie Cai ◽  
Weiqiang Li ◽  
Qinglong Bu ◽  
Mingshu Wang ◽  
...  
Keyword(s):  
Bovine Viral Diarrhea Virus ◽  
Nasal Swab ◽  
Bovine Viral Diarrhea ◽  
Diarrhea Virus ◽  
Viral Diarrhea ◽  
Separate Branch ◽  
Genetic Subtype ◽  
Viral Diarrhea Virus ◽  
Cattle Farms ◽  
Subtype 1B

AbstractIn 2019, diarrhea cases occurred on cattle farms in Qionglai and Guang'an, Sichuan Province. Two out of 20 (10%) serum and nasal swab samples were positive when tested using a bovine viral diarrhea virus (BVDV) antigen-capture ELISA kit. Two non-cytopathic strains of BVDV were isolated and named QL1903 and GA190608, respectively. The nucleotide sequences of the genomes of the two isolates were 89.52% identical. Phylogenetic analysis based on the 5'-UTR sequence revealed that the BVDV isolate QL1903 belonged to BVDV subtype 1b, whereas isolate GA190608 clustered with strains HN1814, EN-19, and BJ09_26 in a separate branch, which has tentatively been classified as a new genetic subtype, "1v".

scholarly journals Evaluating the Bovine Tuberculosis Eradication Mechanism and Its Risk Factors in England’s Cattle Farms

2021 ◽  
Vol 18 (7) ◽  
pp. 3451
Author(s):  
Tabassom Sedighi ◽  
Liz Varga
Keyword(s):  
Risk Factors ◽  
Bovine Tuberculosis ◽  
Animal Health ◽  
Dynamic Bayesian Network ◽  
Policy Makers ◽  
Domain Experts ◽  
Actual Experience ◽  
Complex Evaluation ◽  
Risk Areas ◽  
Cattle Farms

Controlling bovine tuberculosis (bTB) disease in cattle farms in England is seen as a challenge for farmers, animal health, environment and policy-makers. The difficulty in diagnosis and controlling bTB comes from a variety of factors: the lack of an accurate diagnostic test which is higher in specificity than the currently available skin test; isolation periods for purchased cattle; and the density of active badgers, especially in high-risk areas. In this paper, to enable the complex evaluation of bTB disease, a dynamic Bayesian network (DBN) is designed with the help of domain experts and available historical data. A significant advantage of this approach is that it represents bTB as a dynamic process that evolves periodically, capturing the actual experience of testing and infection over time. Moreover, the model demonstrates the influence of particular risk factors upon the risk of bTB breakdown in cattle farms.

Mechanisms of amitraz resistance in a Rhipicephalus microplus strain from southern Brazil

2021 ◽  
pp. 101764
Author(s):  
Luiz Henrique de La Canal ◽  
Bruno Dall'Agnol ◽  
Anelise Webster ◽  
José Reck ◽  
João Ricardo Martins ◽  
...  
Keyword(s):  
Rhipicephalus Microplus ◽  
Southern Brazil
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