scholarly journals Approach on risk factors of bovine trypanosomosis due to Trypanosoma vivax in the Bolivian and Brazilian pantanals

2006 ◽  
Vol 13 (2) ◽  
pp. 153-162
Author(s):  
Roberto Aguilar M. S. Silva
Keyword(s):  
Risk Factors ◽  
Beef Cattle ◽  
Clinical Signs ◽  
Trypanosoma Vivax ◽  
Cattle Breeding ◽  
Bovine Trypanosomosis ◽  
Severe Leucopenia

Trypanosoma vivax caused between 1995 and 1997 a devastating disease in Bolivian andBrazilian Pantanals. These regions are very important beef cattle breeding in Brazil andBolivia. The principal clinical signs of bovine trypanosomosis in livestock were anemia,severe leucopenia, and abortion. The purpose of the present study was to analyze the riskfactors of the natural bovine trypanosomosis in the Bolivian and Brazilian Pantanals. Weconcluded that the principal risk factors related to T. vivax transmission in the Bolivian andBrazilian Pantanals were the transportation by foot, because the conditions for acquisition ortransmission of T. vivax were greatest at the numerous resting places along the route, the useof contaminated needles during vaccinations, and transmission by tabanids during the rainyseason. The fauna contamination should be also considered.

scholarly journals Follow-up of dairy cattle naturally infected by Trypanosoma vivax after treatment with isometamidium chloride

2021 ◽  
Vol 30 (1) ◽  
Author(s):  
Kayo José Garcia de Almeida Castilho Neto ◽  
Ana Beatriz da Cruz Favaro Garcia ◽  
Otavio Luiz Fidelis Junior ◽  
Walter Beterquini Nagata ◽  
Marcos Rogério André ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Clinical Signs ◽  
Parasite Clearance ◽  
Disease Diagnosis ◽  
Trypanosoma Vivax ◽  
Serum Samples ◽  
Diminazene Aceturate ◽  
Bovine Trypanosomosis ◽  
Edta Blood

Abstract Trypanosoma vivax infections cause nonspecific clinical signs in cattle associated with aparasitemic intervals, making disease diagnosis a challenge. In Brazil, diminazene aceturate and isometamidium chloride (ISM) are available to treat bovine trypanosomosis. The objective of this study was to follow-up, by molecular and serological techniques, dairy cattle naturally infected by T. vivax after ISM treatment. Thirty cattle naturally infected with T. vivax received two applications of ISM, at a dosage of 1.0 mg/kg intramuscularly, on days 0 and 150. For T. vivax diagnosis, EDTA-blood and serum samples were evaluated on 0, 7, 15, 30, 60, 90, 120, 150, 180, 210, and 240 days after treatment PCR, Loop-mediated isothermal amplification (LAMP) and ELISA. Animals with persistent detection of T. vivax DNA by both PCR and LAMP were found and continuous detection of anti-T. vivax IgG antibodies by ELISA, suggesting the presence of T. vivax resistance to ISM. The combination of LAMP and ELISA tests can prevent misdiagnosis of the parasite clearance in treated cattle, contributing to better disease control. This is the first experiment that demonstrates the persistence infection of T. vivax under ISM treatment in a natural infected herd and evidence of ISM chemotherapy-resistant T. vivax in Brazil.

Epidemiological and molecular identification of Trypanosoma vivax diagnosed in cattle during outbreaks in central Brazil

Parasitology ◽  
2020 ◽  
Vol 147 (12) ◽  
pp. 1313-1319
Author(s):  
Thiago Souza Azeredo Bastos ◽  
Adriana Marques Faria ◽  
Luiz Fellipe Monteiro Couto ◽  
João Eduardo Nicaretta ◽  
Alliny Souza de Assis Cavalcante ◽  
...  
Keyword(s):  
Risk Factors ◽  
Epidemiological Data ◽  
18S Rrna Gene ◽  
The State ◽  
Rrna Gene ◽  
Trypanosoma Vivax ◽  
Central Brazil ◽  
Parasitological Diagnosis ◽  
Bovine Trypanosomosis ◽  
Polymerase Chain

AbstractBovine trypanosomosis has been spreading in Brazil. In the present study, we evaluated the spatial distribution, prevalence and risk factors of this disease in the state of Goiás, Brazil, and performed both molecular and phylogenetical analyses of Trypanosoma vivax. A total of 4049 blood samples were collected from cattle for a period of 2 years. The parasitological diagnosis was performed using the Woo method and a questionnaire was administered to the farmers to document risk factors associated with the disease in the herd. Positive samples were DNA sequenced and compared to GenBank codes. The prevalence of T. vivax was 8.84%, occurring on 24 ranches only in dairy cattle and mainly in the central and southern portions of the state. The acquisition of new animals infected with T. vivax and the administration of exogenous oxytocin to cows using the same syringe and needle were the main associated factors (P ≤ 0.05). After an outbreak, milk production decreased by 39.62%. The presence of biting flies (tabanids, Haematobia irritans and Stomoxys calcitrans) was not a risk factor (P > 0.05) for the occurrence of T. vivax. The epidemiological data demonstrate the importance of restricting the practice of auctions as well as eliminating the use of exogenous oxytocin in animals during milking. The samples tested by polymerase chain reaction were positive for T. vivax and were genetically homologous with T. vivax found in different states of Brazil and west Africa based on the 18S rRNA gene.

The theoretical background for the effective development of beef raising

2020 ◽  
Vol 18 (9) ◽  
pp. 1738-1749
Author(s):  
N.L. Titov ◽  
M.M. Nizamutdinov ◽  
G.S. Klychova
Keyword(s):  
Beef Cattle ◽  
Economic Efficiency ◽  
Performance Indicators ◽  
Theoretical Basis ◽  
Theoretical Background ◽  
Theory And Practice ◽  
Cattle Breeding ◽  
Cattle Industry ◽  
Effective Development ◽  
Cattle Husbandry

Subject. This article explores the theoretical basis of the economic efficiency of production and classifies the performance figures of beef cattle husbandry. Objectives. The article aims to define a system of indicators of beef cattle husbandry economic efficiency. Methods. For the study, we used a comparative analysis. Conclusions and Relevance. To assess the economic efficiency of agriculture production, it is necessary to use a set of indicators by beef cattle breeding sub-sector. The system of economic performance indicators of production needs to be transformed into a summarizing indicator. The results of the study can be applied in the theory and practice of determining the economic efficiency of the beef cattle industry.

THE IMPORTANCE OF THE FAMILY FOR GENEALOGICAL STRUCTURE OF VOLYN BEEF OF CATTLE

2016 ◽  
Vol 52 ◽  
pp. 82-94 ◽  
Author(s):  
A. Ye. Pochukalin
Keyword(s):  
Beef Cattle ◽  
Live Weight ◽  
Breeding Value ◽  
Farm Families ◽  
Cattle Breeding ◽  
Reproductive Ability ◽  
The Family ◽  
Minimum Number ◽  
Related Group ◽  
Economic Use

One of the ways of increasing level of animal economically useful traits is selection work with farm families. In pedigree cattle breeding of Ukraine families are a statistical component of breed genealogy. Among the main scientific works on working with families, it should be noted minimum number of female ancestors, proposed by D. T. Vinnichuk, to determine the breeding value, different categories, classification and techniques for evaluating related groups of females. The aim of our research was to analyse importance of farm families for genealogical structure of the breed. The research was on basis of data of primary breeding records at the herd of Volyn Beef cattle of “Zorya” breeding farm, Kovel district, Volyn region. Akula 102, Galka 37 and Galka 1537 families belonging to Krasavchyk 3004 bloodline, Smorodyna 613, Korona 2382 and Visla 1016 families – Tsebryk 3888 bloodline, Kalyna 212, Verba 1536 and Garna 536 families – Yamb 3066 bloodlines, Kazka 433, Galka 421 and Bystra 1124 families – Buinyi 3042 bloodline, Rozetka 1313, Arfa 599 and Bulana 943 families – Sonnyi-Kaktus 3307-9828 bloodline, and Palma 275, Desna 870 and Veselka 444 families – Mudryi 9100 bloodline were characterized. Belonging to a bloodline was determined by the father's side of female ancestors. Structural units of families: branches, branching with identifying the best individuals on breeding traits were submitted to identify the best combinations and successful use of closely related breeding. Comparing assessment of related groups of females on the main breeding traits belonging to Krasavchyk 3004 bloodline, it was noted that the cows of Akula 102 family predominated in live weight at 5 years’ age, milk ability and economic use duration, whereas the cows of Galka 1537 family – on traits of reproductive ability. Smorodyna 613 family of Tsebryk 3888 bloodline had high duration of economic use and cows’ live weight at 5 years’ age compared with Korana 2382 and Visla 1016 families with equal values of the exterior traits (height measures) and coefficient of reproductive ability. The families of Mudryi 9100 bloodline in terms of reproduction (calving interval, coefficient of reproductive ability) had the highest figures of cows’ milk ability and live weight. The cows of Bulana 943 family had a considerable predominance over representatives of Rozetka 1313 and Arfa 599 families of Sonnyi-Kaktus 3307-9828 bloodline by main economically useful traits. High indices of reproductive ability were noted in these families. Heifers of the families of Buinyi 3042 bloodline had high live weight at 18 months’ age at average values of milk ability and cows’ live weight at 5 years’ age. More equal figures of growth rate, exterior and economic use duration were observed in the cows of Kalyna 212, Verba 1536 and Garna 536 families of Yamb 3066 bloodline. Breeding by families in beef cattle breeding is an important element of selection, because it allows to evaluate not only related group of female ancestor, but also to analyse a successful combination with lines and purposeful use of closely related breeding by the best representatives of a breed.

INVESTMENT DEVELOPMENT OF BEEF CATTLE BREEDING WITH STATE SUPPORT

2018 ◽  
pp. 71-75 ◽  
Author(s):  
Alikhan Yakovlevich Kibirov ◽  
Nadezhda Valerevna Litvina
Keyword(s):  
Beef Cattle ◽  
State Support ◽  
Cattle Breeding

СОСТОЯНИЕ МЯСНОГО СКОТОВОДСТВА В РОССИЙСКОЙ ФЕДЕРАЦИИ: реалии и перспективы

2020 ◽  
Author(s):  
I.M. DUNIN ◽  
S.E. TYAPUGIN ◽  
R.K. MESHCHEROV ◽  
V.P. HODYKOV ◽  
V.K. ADZHIBEKOV ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Russian Federation ◽  
The State ◽  
Comprehensive Assessment ◽  
Sales Volume ◽  
Cattle Breeding ◽  
The Russian Federation ◽  
Almost All ◽  
Further Development

Рассмотрены состояние и перспективы развития мясного скотоводства в Российской Федерации. Проведен мониторинг численности поголовья, породного состава и продуктивности мясного крупного рогатого скота во всех категориях хозяйств, изучены масштабы и объемы бонитировки скота за 20102018 годы. По данным Минсельхоза России, в 2018 году поголовье крупного рогатого скота в стране составило более 18 млн голов, в том числе численность животных специализированных мясных пород во всех категориях хозяйств достигла 2,26 млн голов. Комплексная оценка 711,16 тыс. голов, или 34,1 от общей численности мясного скота, в том числе 389,8 тыс. коров, принадлежащих к 15 породам и типам, разводимым в 57 регионах Российской Федерации показала, что наибольшее подконтрольное поголовье имеют абердин ангусская порода (417545 гол.), калмыцкая (137262 гол.), герефордская (87278 гол.) и казахская белоголовая породы (52563 гол.). Все подконтрольное поголовье животных является чистопородным и IV поколения, в том числе 99,7 быков-производителей и 99,3 коров. Анализ живой массы пробонитированного поголовья выявил тенденцию к ее повышению у коров всех возрастов в среднем на 54 кг, быков производителей на 39 кг, или на 16,7 и 5,2 за последние 9 лет, соответственно. Живая масса коров по итогам 2018 года в среднем составила 546 кг, быков-производителей 791 кг. По состоянию на 1.01.2019 года, племенная база мясного скотоводства страны представлена 270 племенными стадами, в том числе 46 племенными заводами и 224 племенными репродукторами. В 2018 году в различные категории хозяйств из племенных предприятий было продано 35517 голов племенного молодняка, в том числе 6388 ремонтных бычка с классами элита и элита-рекорд (85,3). В 2018 году было продано племенного молодняка в расчете на 100 коров галловейской породы 33,0 головы, казахской белоголовой 29,1 герефордской 28,0 калмыцкой 22,2 лимузинской 15,5 абердин ангусской 8,8 русской комолой 8,2 и симментальской мясной 4,7 голов. На основании мониторинга состояния мясного скотоводства страны за 20102018 годы были намечены перспективы дальнейшего развития.The article considers the state and prospects of development of beef cattle breeding in the Russian Federation. The number of livestock, breed composition and productivity of beef cattle in all categories of farms was monitored, the scale and volumes of bonding of cattle for the studied 9-year period (20102018) were studied. According to the Ministry of Agriculture of Russia, in 2018 the number of cattle in the country amounted to more than 18 million heads, including the number of cattle of specialized meat breeds in all categories of farms reached 2.26 million heads. A comprehensive assessment of the number of livestock in the amount of 711.16 thousand animals or 34.1 of the total number of beef cattle, including: cows 389.8 thousand heads belonging to 15 breeds and types bred in 57 regions of the Russian Federation, showed that the largest controlled livestock are: Aberdeen Angus breed 417545 animals, Kalmyk 1372726 animals, Hereford 87278 animals and Kazakh white-headed breed 52563 animals. Almost all of the controlled livestock of animals is purebred and IV generation, including: respectively 99.7 of bulls producers and 99.3 of cows. The analysis of live mass of a livestock revealed a tendency to its increase at cows of all age on average on 54 kg, bulls on 39 kgor for 16.7 and 5.2 for the last 9 years respectively. The live mass of cows following the results of 2018 averaged 546 kg, bulls 791 kg. As of January 1, 2019, the breeding base of beef cattle breeding in the country is represented by 270 breeding herds, including: 46 breeding plants and 224 breeding reproducers. In 2018, 35,517 heads of pedigree young animals were sold to various categories of farms from pedigree enterprises, including 6,388 repair bulls with elite classes and an elite record record for appraisal (85.3). An analysis of the sales volume of pedigree young animals in the context of farmed meat breeds showed that in 2018 pedigree young animals per 100 cows were sold in the country: Galloveian breed 33.0 goals, Kazakh white-headed 29.1 goals, Hereford 28, 0 goals., Kalmyk 22.2 goals., Limousin 15.5 goals., Aberdeen Angus 8.8 goals, Russian kolola 8.2 and Simmental meat 4.7 goals. Based on the monitoring of the state of beef cattle breeding in the country for the study period (20102018), prospects for further development were outlined.

scholarly journals Low Maternal Immunoglobulin G Avidity and Single Parity as Adverse Implications of Human Cytomegalovirus Vertical Transmission in Pregnant Women with Immunoglobulin M Positivity

Viruses ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 866
Author(s):  
Masatoki Kaneko ◽  
Junsuke Muraoka ◽  
Kazumi Kusumoto ◽  
Toshio Minematsu
Keyword(s):  
Risk Factors ◽  
Pregnant Women ◽  
Vertical Transmission ◽  
Human Cytomegalovirus ◽  
Multiple Logistic Regression Analysis ◽  
Clinical Signs ◽  
Immunoglobulin M ◽  
Igg Antibody ◽  
Neurological Sequelae ◽  
Previous Pregnancy

Human cytomegalovirus (CMV) is the leading cause of neurological sequelae in infants. Understanding the risk factors of primary CMV infection is crucial in establishing preventive strategies. Thus, we conducted a retrospective cohort study to identify risk factors of vertical transmission among pregnant women with immunoglobulin (Ig) M positivity. The study included 456 pregnant women with IgM positivity. Information on age, parity, occupation, clinical signs, IgM levels, and IgG avidity index (AI) was collected. The women were divided into infected and non-infected groups. The two groups showed significant differences in IgM level, IgG AI, number of women with low IgG AI, clinical signs, and number of pregnant women with single parity. In the multiple logistic regression analysis, pregnant women with single parity and low IgG AI were independent predictors. Among 40 women who tested negative for IgG antibody in their previous pregnancy, 20 showed low IgG AI in their current pregnancy. Among the 20 women, 4 had vertical transmission. These results provide better understanding of the risk factors of vertical transmission in pregnant women with IgM positivity.

#58: Improving the Peritoneal Dialysis Program in a Pediatric hospital in Honduras Using Six Sigma Methodology

2021 ◽  
Vol 10 (Supplement_1) ◽  
pp. S20-S21
Author(s):  
Sara Eloisa Rivera Molina ◽  
Claudia Romero Quiroz ◽  
Dilcia Sauceda Acosta
Keyword(s):  
Risk Factors ◽  
Peritoneal Dialysis ◽  
Six Sigma ◽  
Peritoneal Fluid ◽  
Dwell Time ◽  
Clinical Signs ◽  
Pediatric Hospital ◽  
Gram Negative ◽  
Six Sigma Methodology ◽  
Fluid Cell

Abstract Background Peritoneal dialysis (PD) is the most common method of renal replacement therapy (RRT) in pediatric patients in Honduras. It has improved survival and quality of life. Unfortunately, there are complications associated with the use of PD catheters, 85% of which, are of infectious origin. These infections carry a high burden of morbidity and mortality, lengthen hospital stays, and increase costs and are a motive for transfer to hemodialysis. Hospital María Especialidades Pediátricas (HMEP) is a pediatric hospital caring for patients with chronic kidney disease in Honduras, PD has been offered as a method for RRT since September 2014. Methods In HMEP, monitoring of PD infection rates through active surveillance began December 1, 2017, as the first step (define and measure) toward the improvement of the PD Program based on Six Sigma methodology. A case of peritonitis was diagnosed when at least 2 of the following 3 criteria were met: (1) Clinical signs or symptoms of peritonitis (cloudy effluent or abdominal pain with fever or vomiting); (2) Altered peritoneal fluid cell count (after a dwell time of 2 hours: a WBC above 100 cells/mm3 in an uncentrifuged sample, with at least 50% neutrophils; or any WBC count with at least 50% neutrophils if the dwell time was less than 2 hours); (3) Positive peritoneal fluid culture. Patient data, risk factors for infection, causative organisms, and event outcomes were recorded. We present the main results of the analysis phase of all peritonitis cases using descriptive statistics. Results From December 1, 2017, through November 30, 2019, 79 patients required PD, representing 8931 catheter-days; and 30 peritonitis episodes occurred among 28 individuals (35%). The peritonitis rate during the 2-year surveillance period was 1.2 infections per patient-years (ideally: <0.67). Twenty-seven (90%) of cases were classified as healthcare associated since these patients underwent PD 3 times a week in the hospital and the catheter was only manipulated by medical staff; the other patients received dialysis at home. The median time from catheter placement to the event was 27 days (5–383 days). All patients had clinical signs or symptoms of peritonitis. Peritoneal fluid cell count results were available for 29 infections, all of which reported altered results. Peritoneal fluid cultures were positive in only 12 events (40%); 6 (50%) reported Gram-negative organisms, 5 (41%) reported Gram-positive and 1 reported Aspergillus spp. Nonfermentative Gram-negative bacteria (Pseudomonas aeruginosa and Acinetobacter lwoffii) were the most common organisms identified; Staphylococcus epidermidis was the most common Gram-positive. Ten events (33%) required removal and replacement of the catheter due to the infection, 6 (20%) required permanent transfer to hemodialysis; 2 (7.1%) patients experienced a relapse. Two (7.1%) died due to infection. Conclusions Implementing Six Sigma methodology allowed us to improve our PD Program by objectively quantifying the magnitude of the problem and identifying risk factors. This supported the infection prevention and control team with the implementation and improvement of preventive measures: change in hand hygiene products (from triclosan to chlorhexidine), increasing hand hygiene compliance, improving connection/disconnection procedure, PD catheter insertion, and maintenance, empowerment of caregivers.

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