Causes of death in beef cattle in southern Brazil

Molossi, Franciéli Adriane; Cecco, Bianca Santana de; Pohl, Camila Blanco; Borges, Rogério Boff; Sonne, Luciana; Pavarini, Saulo Petinatti; Driemeier, David

doi:10.1177/10406387211007952

Cited by 12 publications

(8 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among intoxications, cases of poisoning by plants were the most frequent, with the number of cases of poisoning by Senecio spp. being the highest, which was also observed in beef cattle in other regions of Rio Grande do Sul (Molossi et al 2021). However, in the first 21 years of the study, the increase was significant (p<0.001), and in the last 21 years, there was no consistency in the annual number of diagnoses.…”

Section: Discussionmentioning

confidence: 49%

Evolution of cattle intoxications in southern Rio Grande do Sul: Spatial distribution and trends over 42 years

Scheid,

Ribeiro,

Venâncio

et al. 2023

Pesq. Vet. Bras.

View full text Add to dashboard Cite

Several toxic diseases cause mortality in cattle in southern Rio Grande do Sul State, Brazil. The aim of this study was to carry out a comparative analysis to determine the evolution of the main intoxications that occurred in cattle in southern Rio Grande do Sul from 1979 to 1999 and from 2000 to 2020. The spatial distribution and trend of occurrence of these intoxications over the 42 years in southern Rio Grande do Sul were determined using data from the Regional Diagnostic Laboratory of the Faculty of Veterinary Medicine at the Federal University of Pelotas (LRD-UFPel), which will make it possible to predict their occurrence in the coming years. From January 1979 to December 1999, 3,753 bovine materials were received for diagnosis at LRD-UFPel, and 3,653 cases were received from 2000 to 2020. Of the total number of materials received, 394 were diagnosed as intoxications, with 140 cases from 1979 to 1999 and 252 cases from 2000 to 2020. Out of 140 cases diagnosed in the first 21 years of operation of the LRD-UFPel, 113 (80.7%) were poisoning by plants, 22 (15.7%) by fungi outbreaks, and five (3.57%) by chemical substances. From 2000 to 2020, of the 252 diagnosed outbreaks 224 (88.8%) were caused by toxic plants, 10 (3.96%) by fungi, 12 (4.76%) by chemical substances, and six (2.38%) by insects. In the temporal trend analysis, a significant linear trend was observed with values of p=0.03 and an annual percentage change (APC) of 2.5 for the increase in the number of diagnoses of poisoning in general over the 42 years of the study. When analyzing the temporal trend of poisoning by Senecio spp., there was an increase in the occurrence of the diagnosis, with different characteristics and inflection points over time, with an annual growth rate of 9% in diagnoses during the first 21 years. There was a decrease in the occurrence of poisoning by Solanum fastigiatum, Echium plantagineum, and Claviceps paspali. Furthermore, poisoning by Ramaria flavo-brunnescens and Baccharis coridifolia maintained a similar percentage throughout the study period. It is concluded that toxic diseases will likely remain important causes of cattle death in the region.

show abstract

Section: Discussionmentioning

confidence: 49%

Evolution of cattle intoxications in southern Rio Grande do Sul: Spatial distribution and trends over 42 years

Scheid,

Ribeiro,

Venâncio

et al. 2023

Pesq. Vet. Bras.

View full text Add to dashboard Cite

show abstract

“…In a study about mortality causes in cattle carried out in the southern region of Brazil, enteritis (miscellaneous causes) was the fourth main cause of death in cattle (Molossi et al 2021).…”

Section: Discussionmentioning

confidence: 99%

Main diseases of cattle in the midwestern region of São Paulo state

et al. 2023

View full text Add to dashboard Cite

São Paulo state is one of the country’s largest producers of beef and milk, and the midwestern region plays a key role in this production, as half of São Paulo’s cattle herd is found in this region. These numbers alone demonstrate the importance of livestock in this region. Therefore, this study aimed to describe the main epidemiological and clinical signs in cattle cases at the Large Animal Hospital at FMVZ-Unesp, located in the midwestern region of São Paulo state. The present retrospective study assessed 638 clinical cases of cattle treated from January 2010 to December 2019 (10 years). Digestive system diseases were the most prevalent, diagnosed in 30.3% of patients, followed by neurological diseases (19.1%) and respiratory diseases (10.5%). The other diseases were distributed in decreasing order as follows: musculoskeletal (7.8%), hematopoietic (6.1%), genitourinary (5.6%), metabolic and nutritional (5.5%), neonatal (4.7%), cutaneous (2.6%), poisoning (2.5%), lymphatic (2.2%), cardiovascular (1.6%) and other diseases (1.4%). Rabies, a fatal zoonotic disease, was the main cause of death in this study and the main disease associated with neurological signs (23.7%). Recognizing the main diseases of cattle in this region will promote the adoption of prophylactic measures to minimize their occurrence and manage treatment to avoid economic losses and decreased productivity of herds.

show abstract

“…Black Vultures may migrate from more anthropogenic landscapes to more rural and natural areas during cold months. At this time of year infectious and parasitic diseases cause the highest mortality in beef cattle (Molossi et al 2021), possibly leading to an increase in carrion availability for vultures. Also, as thermal formation during winter is limited and daylength is shorter, vultures may tend to stay closer to the roost sites, often located in natural or less disturbed areas.…”

Section: Discussionmentioning

confidence: 99%

Thermal circulation affects Black Vulture Coragyps atratus soaring behaviour in the vicinity of two airports in south-east Brazil.

Novoselova¹,

Macarrão²,

Gallo-Ortiz³

et al. 2022

Vul. News

View full text Add to dashboard Cite

The growth of air traffic all over the world faces an increasing risk of aircraft collisions with birds. The Black Vulture (Coragyps atratus), being a large soaring species living across the Americas, presents a serious hazard to airplanes. The reduction of this threat without harm to birds is a complex task requiring thorough investigations of their behaviour. Various natural and anthropogenic factors can affect the distribution of soaring Black Vultures in the surrounds of airports. Here we focus on the impact of meteorological parameters (i.e. air temperature, relative humidity, wind speed and atmospheric pressure) on Black Vulture flight at two study sites. In the course of one year, from September 2012 to August 2013, we surveyed with binoculars the soaring activity of Black Vultures around Amarais and Presidente Prudente airports in the southeast of Brazil. The study areas were characterized by tropical climatic conditions with mild dry winter and hot rainy summer. We found that the frequency of soaring flights depended on the wind speed, a proxy of the strength of thermals (upward air flows). This finding is consistent with habits of Black Vultures using thermals for soaring. In contrast, air temperature, air humidity and atmospheric pressure did not affect their activity. We also showed that the different seasons affected the birds’ behaviour, but the degree of their influence depended on the level of anthropogenic pressure in the soaring terrain. Two contrasting types of daily soaring activity appeared: a plateau-like trend and a tendency of two peaks at morning and afternoon with a pronounced drop between them. Our findings can be used to inform methods to reduce the risk of collisions between aircraft and Black Vultures at our study sites, and our analytical approach could be applied elsewhere.

show abstract

Causes of death in beef cattle in southern Brazil

Cited by 12 publications

References 34 publications

Evolution of cattle intoxications in southern Rio Grande do Sul: Spatial distribution and trends over 42 years

Evolution of cattle intoxications in southern Rio Grande do Sul: Spatial distribution and trends over 42 years

Main diseases of cattle in the midwestern region of São Paulo state

Thermal circulation affects Black Vulture Coragyps atratus soaring behaviour in the vicinity of two airports in south-east Brazil.

Contact Info

Product

Resources

About