Dynamics of Cattle Production in Brazil

McManus, Concepta; Barcellos, Júlio Otávio Jardim; Formenton, Bruna Krummenauer; Hermuche, Potira Meirelles; Júnior, Osmar Abı́lio de Carvalho; Guimarães, RenatoFontes; Gianezini, Miguelangelo; Dias, Eduardo; Lampert, V. do N.; Zago, Daniele; Neto, José Braccini

doi:10.1371/journal.pone.0147138

Cited by 90 publications

(72 citation statements)

References 15 publications

(18 reference statements)

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“…[8, 12, 51], the dog-sheep cycle was confirmed, because fecal samples were collected in a farm for small ruminants, where dogs were fed offal of livestock (cattle and sheep). Historically, the Amazon Basin has been a mobile frontier of economic expansion with the spread of agropastoralism, mainly cattle ranching, from the 1970s onwards [52]. In Acre, livestock production primarily focuses on cattle but also includes sheep raising.…”

Section: Discussionmentioning

confidence: 99%

First molecular identification of Echinococcus vogeli and Echinococcus granulosus (sensu stricto) G1 revealed in feces of domestic dogs (Canis familiaris) from Acre, Brazil

et al. 2017

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Background Echinococcus granulosus (sensu lato) (s.l.) and Echinococcus vogeli are causative agents of chronic zoonotic diseases such as cystic and polycystic echinococcosis, respectively. In Brazil, polycystic echinococcosis has a restricted geographical distribution in the North Region, while cystic echinococcosis is observed in the South Region. Domestic dogs (Canis familiaris) fed with raw viscera represent a risk factor for E. granulosus (s.l.) infection in the South Region. Although this practice is frequent, it remains unclear whether domestic dogs are infected with E. vogeli in the state of Acre, located in the Amazon basin in the North Region of Brazil. The aim of this study was to investigate this gap in the polycystic echinococcosis epidemiology.MethodsSixty-five fecal samples were collected from the ground in five municipalities (Sena Madureira, n = 14; Rio Branco, n = 06; Bujari, n = 06; Xapuri, n = 30; and Epitaciolândia, n = 09) located in the state of Acre, northern Brazil. The samples were screened for parasites by copro-PCR using the cox1 gene associated with automated sequencing.Results Echinococcus vogeli was molecularly confirmed in a sample from Sena Madureira and E. granulosus (sensu stricto) (s.s.) (G1) in a sample from Rio Branco.ConclusionsThese findings indicate that molecular assays are useful in typing Echinococcus taxa from fecal samples of dogs in northern Brazil. The present study is the first molecular record of E. vogeli in domestic dogs found in the state of Acre, reinforcing their role as a source of infection for humans. Because E. granulosus (s.s.) (G1) was detected for the first time in the North Region, from the epidemiological standpoint this finding is highly relevant, because it expands the known geographical distribution, which was previously restricted to the South Region of Brazil.

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Section: Discussionmentioning

confidence: 99%

First molecular identification of Echinococcus vogeli and Echinococcus granulosus (sensu stricto) G1 revealed in feces of domestic dogs (Canis familiaris) from Acre, Brazil

et al. 2017

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“…This methodology has been applied to other types of production, such as cattle [17] and sheep [27]. The RGR value is the percentage change within a period of time, being expressed by the following equation:…”

Section: Analysis Of Relative Growth Rate and Accelerated Growthmentioning

confidence: 99%

“…Growth rate represents a first order percentage difference in the sequence of the original data, whereas the growth acceleration represents a second order of differentiation that allows to evaluate the existence of a regional pole with constant growth in time or an isolated event of short duration. Both metrics were applied to understand the dynamics of the regional production of sheep [16] and cattle [17].…”

Section: Introductionmentioning

confidence: 99%

Spatial-Temporal Patterns of Bean Crop in Brazil over the Period 1990–2013

Clemente

Júnior

Guimarães

et al. 2017

IJGI

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Abstract:The understanding of spatial dependence and distribution of agricultural production factors is a key issue for the territorial planning and regional development. This study evaluates the spatial-temporal dynamics of bean crops in Brazil over the period 1990-2013. Common bean (Phaseolus vulgaris L.) is one of the staple foods for the Brazilian population, with nationwide production and cultivated mostly by family farmers. The analyzed variables of this crop included harvested area, produced quantity, and average crop yield. We investigated spatial autocorrelations using the Global and Local Moran Index. The global spatial autocorrelation statistics demonstrated a general spatial dependence of bean production over Brazil, while the local spatial autocorrelation statistics detect statistically significant zones of high and low bean-production attributes. Maps of growth and acceleration rate of the variables were constructed, showing the areas that increased, decreased, or stagnated during the time series. The results showed a considerable reduction of the bean harvested area, but there were significant increases in produced quantity and average crop yield. Results showed distinct and significant patterns of bean-production variables in Brazilian territory over the different years. Regional differences and peculiarities are evident, emphasizing the need for directing investments to agricultural research and public policy.

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“…A remarkable increase in cattle herd in Brazil occurred from 1977 to 2012, with the Midwest region showing a high increase [1]. However, extending to new frontiers for Brazilian cattle herd is constraint to limited areas and consequently the yield of forage grass needs to be increased.…”

Section: Introductionmentioning

confidence: 99%

Best Management Practices (BMPs) for Nitrogen Fertilizer in Forage Grasses

Serra¹,

Marchetti²,

Dupas³

et al. 2018

New Perspectives in Forage Crops

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There is a concern about the growing population and limitation in natural resources which are taking the population to direct its agricultural systems into a more productive and efficient activity, looking to avoid a negative impact on the surrounding environment. The industry energy expended to produce nitrogen (N)-fertilizer is considered an indirect consumption of energy in agriculture, which is higher with an increasing forage yield. Nitrogen is the key nutrient associated with high-yielding production in forage grass and grain crops. The aim of this chapter is to introduce the best management practices (BMPs) for N-fertilizer application in forage grasses to improve N-use efficiency, since the most economical way to feed livestock is forage plants where its potential biomass production is not well explored. The BMPs basically follow three management practices: (1) soil nutrient availability and forage requirement, (2) fertilizer application, and (3) decrease in nutrient losses from soil. In order to take a decision on applying N-fertilizer to accomplish forage grasses production with social, economic, and environmental benefits, the N-fertilizer use in forage grasses is going to follow the "Right rate, Right source, Right place, and Right time (4R) nutrient stewardship." The application of the 4R's nutrients stewardship is directly associated with economic, social, and environmental impact. The capacity of the 4R's implementation worldwide turns into a best guide to improve the striving of better N-use efficiency in forage grass. The 4R's are interrelated; thus, the recommendation of N-fertilizer rates cannot be prescribed without the combination of the 4R's where a whole system to be followed should be considered to decide about N-fertilizer in pasture. Consequently, any decision in one of the 4R's is going to affect the expected N-fertilizer results and dry matter production.

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Dynamics of Cattle Production in Brazil

Cited by 90 publications

References 15 publications

First molecular identification of Echinococcus vogeli and Echinococcus granulosus (sensu stricto) G1 revealed in feces of domestic dogs (Canis familiaris) from Acre, Brazil

First molecular identification of Echinococcus vogeli and Echinococcus granulosus (sensu stricto) G1 revealed in feces of domestic dogs (Canis familiaris) from Acre, Brazil

Spatial-Temporal Patterns of Bean Crop in Brazil over the Period 1990–2013

Best Management Practices (BMPs) for Nitrogen Fertilizer in Forage Grasses

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