Prevalence of Pneumonia in Sheep and Goats Slaughtered at Elfora Bishoftu Export Abattoir, Ethiopia: A Pathological Investigation

Accurate clinical diagnosis of pneumonia, the leading cause of mortality in small ruminants, is difficult and usually requires postmortem examination of the lungs. An active abattoir survey was conducted between November 2017 and April 2018 to estimate the prevalence and characterize the gross and histopathological lesions of pneumonic lungs in 864 clinically healthy young small ruminants (490 sheep and 374 goats aged 1.5 to 3 years) raised for meat in different parts of the country and slaughtered at Elfora Bishoftu export abattoir, Ethiopia. Out of the total lungs examined grossly, pneumonic lesions were found in 158 (18.29%) lungs. On histopathological examination of the lungs with gross pneumonic lesion, however, typical pneumonic lesions were diagnosed in 148 (17.13%) lungs only. No significant (p>0.05) difference was noted in the prevalence of pneumonia between sheep (17.14%) and goats (17.11%) in histopathological examination. Based on the predominant histopathological findings, the pneumonic lesions were characterized as interstitial pneumonia (41.9%), acute suppurative bronchopneumonia (25.7%), acute fibrinous bronchopneumonia (24.3%), chronic bronchopneumonia (6.1%), aspiration pneumonia (4.7%), bronchointerstitial pneumonia (3.4%), and ovine pulmonary adenomatosis (3.4%). The study further showed the spread of ovine pulmonary adenomatosis and ovine progressive pneumonia (Maedi) from the central highlands to areas that were previously free from these diseases. Due to its better diagnostic capacity, histopathology should be employed routinely as an ancillary test in the major abattoirs and regional veterinary laboratories to generate additional epidemiological data for a better disease control and prevention measures. Further studies are also recommended to identify the etiological agents of pneumonia in sheep and goats and thereby to formulate feasible and cost-effective interventions.

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Peste des petits ruminants in Africa: a review of currently available molecular epidemiological data, 2020

Archives of Virology ◽

10.1007/s00705-020-04732-1 ◽

2020 ◽

Vol 165 (10) ◽

pp. 2147-2163 ◽

Cited By ~ 2

Author(s):

William G. Dundon ◽

Adama Diallo ◽

Giovanni Cattoli

Keyword(s):

Economic Impact ◽

International Organizations ◽

Small Ruminants ◽

Epidemiological Data ◽

Viral Disease ◽

Cash Income ◽

Small Farmers ◽

Peste Des Petits Ruminants ◽

Sheep And Goats ◽

Global Eradication

Abstract Small ruminants (e.g., sheep and goats) contribute considerably to the cash income and nutrition of small farmers in most countries in Africa and Asia. Their husbandry is threatened by the highly infectious transboundary viral disease peste des petits ruminants (PPR) caused by peste-des-petits-ruminants virus (PPRV). Given its social and economic impact, PPR is presently being targeted by international organizations for global eradication by 2030. Since its first description in Côte d’Ivoire in 1942, and particularly over the last 10 years, a large amount of molecular epidemiological data on the virus have been generated in Africa. This review aims to consolidate these data in order to have a clearer picture of the current PPR situation in Africa, which will, in turn, assist authorities in global eradication attempts.

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Clinical, histopathological, and molecular characterization of Mycoplasma species in sheep and goats in Egypt

Veterinary World ◽

10.14202/vetworld.2021.2561-2567 ◽

2021 ◽

pp. 2561-2567

Author(s):

Walid S. Mousa ◽

Ahmed A. Zaghawa ◽

Ahmed M. Elsify ◽

Mohamed A. Nayel ◽

Zarroug H. Ibrahim ◽

...

Keyword(s):

Molecular Characterization ◽

Respiratory Infections ◽

Histopathological Examination ◽

Small Ruminants ◽

Systemic Reaction ◽

Economic Losses ◽

Mycoplasma Species ◽

Nasal Discharge ◽

Sheep And Goats

Background and Aim: Mycoplasma infection in small ruminants is a serious problem in sheep and goat herds around the world. It is responsible for high economic losses and decreased animal productivity. This study aimed to highlight the clinical, histopathological, minimum inhibitory concentration (MIC), and molecular characterization of Mycoplasma species in sheep and goats in Menoufiya Governorate, Egypt. Materials and Methods: A total of 234 samples were collected; 104 samples were collected from pneumonic lung tissues from the abattoir, in addition, 10 and 20 samples collected from apparently and diseased sheep, respectively, and 40 and 60 samples were collected from apparently and diseased goats, respectively, which were subjected to isolation onto pleuropneumonia-like organism medium. Polymerase chain reaction (PCR), histopathological examination, and determination of the MIC were also performed. Results: Of 104 samples of lung tissues showing pneumonic lesions, 56 (53.84%) were positive for Mycoplasma isolation. The positive isolation of Mycoplasma from 10 and 20 samples from apparently and diseased sheep was 30% and 40%, respectively as well as the positive isolation of Mycoplasma was 17% and 56.66% out of 40 and 60 apparently healthy and diseased field goat's cases, respectively. All the diseased sheep and goats showed respiratory manifestations, including cough, bilateral nasal discharge, conjunctivitis, and systemic reaction. Evaluation of the MIC for Mycoplasma ovipneumoniae revealed that lincospectin and tylosin were the most effective antibiotics at 2.5 μg/mL. Histopathological examination of affected lung tissue showed extensive hemorrhagic pneumonia with extensive alveolar hemorrhage. The PCR technique proved to be a rapid, specific, and sensitive method for the detection of M. ovipneumoniae and Mycoplasma arginini at 390 and 326 bp, respectively. Conclusion: M. ovipneumoniae and M. arginini were the most prevalent species associated with respiratory infections in sheep and goats in the study area. Further studies are needed to investigate the role of these species in dissemination of the disease within herds of small ruminants.

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Spontaneous poisoning by Ateleia glazioviana (leg. Papilionoideae) in sheep and goats in the West region of Santa Catarina

Pesquisa Veterinária Brasileira ◽

10.1590/1678-5150-pvb-6724 ◽

2021 ◽

Vol 41 ◽

Author(s):

Aldo Gava ◽

Franciéli A. Molossi ◽

Daiane Ogliari ◽

Elaine Melchioretto ◽

Eduardo Pasquali ◽

...

Keyword(s):

Subcutaneous Tissue ◽

Clinical Signs ◽

Small Ruminants ◽

Epidemiological Data ◽

The West ◽

Santa Catarina ◽

Sheep And Goats ◽

West Region ◽

Facial Edema ◽

Being Moved

ABSTRACT: This study reported the epidemiological data and the clinical and pathological conditions of spontaneous poisoning by Ateleia glazioviana in sheep and goats in the West region of Santa Catarina. The small ruminants were located in a place where there was a large amount of young plants of A. glazioviana and showing signs of consumption. The stock of sheep was composed of 250 animals, of which 45 died. In the goat herd, there were 28 animals, and of these, 27 died, and one was sacrificed. The main clinical signs were weight loss, fatigue, slow-walk, and eventually submandibular and facial edema. Some animals were found dead, and others died suddenly after being moved. Abortions and the birth of weak lambs were also observed. In total, five sheep and one goat were necropsied. The main macroscopic lesions were associated to eccentric cardiac hypertrophy and moderate, multifocal white areas in the epicardium and myocardium. Two sheep showed marked edema in the subcutaneous tissue of the head and neck and it could be noted hydrothorax and hydroperitoneum and liver with a nutmeg-like appearance. Histological changes were relevant in the myocardium. They consisted of fibrosis and myofiber necrosis associated with macrophage infiltrate, multifocal, low and marked swelling of cardiomyocytes with loss of fibrillarystriae, and increased nuclear volume. In two sheep, there was still congenital hepatic, as well as marked centrilobular and diffuse areas.

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Hydatidosis in slaughtered sheep and goats in India: prevalence, genotypic characterization and pathological studies

Journal of Helminthology ◽

10.1017/s0022149x18001219 ◽

2019 ◽

Vol 94 ◽

Cited By ~ 2

Author(s):

A.D. Moudgil ◽

P. Moudgil ◽

R.K. Asrani ◽

R.K. Agnihotri

Keyword(s):

Mononuclear Cells ◽

Histopathological Examination ◽

Small Ruminants ◽

Control Measures ◽

Western Himalayas ◽

Hydatid Cysts ◽

Sheep And Goats ◽

The North ◽

Genotypic Characterization ◽

Pulmonary Cysts

Abstract The present study determined the prevalence of hydatid cysts in different organs of slaughtered hilly ‘Gaddi’ breed small ruminants—sheep (n = 230) and goats (n = 197)—in Kangra Valley of the north-western Himalayas, India. Hydatid cysts were found in 12.2% (n = 28) of sheep and 10.7% (n = 21) of goats. Pulmonary echinococcosis was more prevalent in slaughtered sheep and goats (sheep 56.36%; goats 62.90%) than hepatic echinococcosis (sheep 43.64%; goats 37.10%). Fertility rates were higher in hepatic (81.25%) and pulmonary cysts of sheep (83.87%) compared to goats. Molecular identification and genotypic characterization of Echinococcus granulosus isolates were based on mitochondrial cytochrome oxidase 1 gene (mtCO1). The genotypic characterization identified the isolated strain to be closely related to the G7 genotype. Histopathological examination revealed a thick coat of granulation tissue, causing fibrosis and inflammatory reaction composed of fibroblasts and mononuclear cells around the cysts. In the liver, hepato-cellular degeneration was prominent at the periphery of the cysts. The present study highlights the molecular confirmation and phylogenetic analysis of E. granulosus isolates with the prevalence of hydatidosis in a naïve host species and in an unexplored region. The findings are of significant medical and veterinary importance regarding development of control measures to check dissemination of hydatidosis.

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Cost-Effectiveness Analysis of BCG Vaccination against Tuberculosis in Indonesia: A Model-Based Study

Vaccines ◽

10.3390/vaccines8040707 ◽

2020 ◽

Vol 8 (4) ◽

pp. 707

Author(s):

Afifah Machlaurin ◽

Franklin Christiaan Karel Dolk ◽

Didik Setiawan ◽

Tjipke Sytse van der Werf ◽

Maarten J. Postma

Keyword(s):

Cost Effectiveness ◽

Univariate Analysis ◽

Cost Effective ◽

Epidemiological Data ◽

Control Programme ◽

Detection Rates ◽

Middle Income ◽

Bcg Vaccination ◽

Life Years ◽

The Cost

Bacillus Calmette–Guerin (BCG), the only available vaccine for tuberculosis (TB), has been applied for decades. The Indonesian government recently introduced a national TB disease control programme that includes several action plans, notably enhanced vaccination coverage, which can be strengthened through underpinning its favourable cost-effectiveness. We designed a Markov model to assess the cost-effectiveness of Indonesia’s current BCG vaccination programme. Incremental cost-effectiveness ratios (ICERs) were evaluated from the perspectives of both society and healthcare. The robustness of the analysis was confirmed through univariate and probabilistic sensitivity analysis (PSA). Using epidemiological data compiled for Indonesia, BCG vaccination at a price US$14 was estimated to be a cost-effective strategy in controlling TB disease. From societal and healthcare perspectives, ICERs were US$104 and US$112 per quality-adjusted life years (QALYs), respectively. The results were robust for variations of most variables in the univariate analysis. Notably, the vaccine’s effectiveness regarding disease protection, vaccination costs, and case detection rates were key drivers for cost-effectiveness. The PSA results indicated that vaccination was cost-effective even at US$175 threshold in 95% of cases, approximating the monthly GDP per capita. Our findings suggest that this strategy was highly cost-effective and merits prioritization and extension within the national TB programme. Our results may be relevant for other high endemic low- and middle-income countries.

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Molecular Detection and Phylogeny of Anaplasmaphagocytophilum and Related Variants in Small Ruminants from Turkey

Animals ◽

10.3390/ani11030814 ◽

2021 ◽

Vol 11 (3) ◽

pp. 814

Author(s):

Münir Aktaş ◽

Sezayi Özübek ◽

Mehmet Can Uluçeşme

Keyword(s):

16S Rrna ◽

Small Ruminants ◽

Rrna Gene ◽

Infection Rates ◽

Sheep And Goats ◽

Significant Difference ◽

Pcr Rflp ◽

First Time ◽

Japan And China ◽

Apparently Healthy

Anaplasma phagocytophilum causes tick-borne fever in small ruminants. Recently, novel Anaplasma variants related to A. phagocytophilum have been reported in ruminants from Tunisia, Italy, South Korea, Japan, and China. Based on 16S rRNA and groEL genes and sequencing, we screened the frequency of A. phagocytophilum and related variants in 433 apparently healthy small ruminants in Turkey. Anaplasma spp. overall infection rates were 27.9% (121/433 analyzed samples). The frequency of A. phagocytophilum and A. phagocytophilum-like 1 infections was 1.4% and 26.5%, respectively. No A. phagocytophilum-like 2 was detected in the tested animals. The prevalence of Anaplasma spp. was comparable in species, and no significant difference was detected between sheep and goats, whereas the prevalence significantly increased with tick infestation. Sequencing confirmed PCR-RFLP data and showed the presence of A. phagocytophilum and A. phagocytophilum-like-1 variant in the sampled animals. Phylogeny-based on 16S rRNA gene revealed the A. phagocytophilum-like 1 in a separate clade together with the previous isolates detected in small ruminants and ticks. In this work, A. phagocytophilum-like 1 has been detected for the first time in sheep and goats from Turkey. This finding revealed that the variant should be considered in the diagnosis of caprine and ovine anaplasmosis.

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Innovation Meets Tradition in the Sheep and Goat Dairy Industry

Dairy ◽

10.3390/dairy2030033 ◽

2021 ◽

Vol 2 (3) ◽

pp. 422-424

Author(s):

Paola Scano ◽

Pierluigi Caboni

Keyword(s):

Dairy Industry ◽

Small Ruminants ◽

Farming Systems ◽

Smallholder Farming ◽

Sheep And Goats ◽

Smallholder Farming Systems ◽

The World

Small ruminants, such as sheep and goats, are mostly raised in smallholder farming systems widely distributed throughout the world [...]

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Predicting employee absenteeism for cost effective interventions

Decision Support Systems ◽

10.1016/j.dss.2021.113539 ◽

2021 ◽

pp. 113539

Author(s):

Natalie Lawrance ◽

George Petrides ◽

Marie-Anne Guerry

Keyword(s):

Cost Effective ◽

Effective Interventions ◽

Employee Absenteeism

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Review of Peste des Petits Ruminants Occurrence and Spread in Tanzania

Animals ◽

10.3390/ani11061698 ◽

2021 ◽

Vol 11 (6) ◽

pp. 1698

Author(s):

Daniel Pius Mdetele ◽

Erick Komba ◽

Misago Dimson Seth ◽

Gerald Misinzo ◽

Richard Kock ◽

...

Keyword(s):

Economic Impact ◽

Disease Surveillance ◽

Grey Literature ◽

Small Ruminants ◽

Peste Des Petits Ruminants ◽

Serum Samples ◽

Eradication Programme ◽

Sheep And Goats ◽

Ruminant Species ◽

Socio Economic Impact

Peste des petits ruminants (PPR) is an important transboundary animal disease of domestic small ruminants, camels, and wild artiodactyls. The disease has significant socio-economic impact on communities that depend on livestock for their livelihood and is a threat to endangered susceptible wild species. The aim of this review was to describe the introduction of PPR to Tanzania and its subsequent spread to different parts of the country. On-line databases were searched for peer-reviewed and grey literature, formal and informal reports were obtained from Tanzanian Zonal Veterinary Investigation Centres and Laboratories, and Veterinary Officers involved with PPR surveillance were contacted. PPR virus (PPRV) was confirmed in northern Tanzania in 2008, although serological data from samples collected in the region in 1998 and 2004, and evidence that the virus was already circulating in Uganda in 2003, suggests that PPRV might have been present earlier than this. It is likely that the virus which became established in Tanzania was introduced from Kenya between 2006–7 through the cross-border movement of small ruminants for trade or grazing resources, and then spread to eastern, central, and southern Tanzania from 2008 to 2010 through movement of small ruminants by pastoralists and traders. There was no evidence of PPRV sero-conversion in wildlife based on sera collected up to 2012, suggesting that they did not play a vectoring or bridging role in the establishment of PPRV in Tanzania. PPRV lineages II, III and IV have been detected, indicating that there have been several virus introductions. PPRV is now considered to be endemic in sheep and goats in Tanzania, but there has been no evidence of PPR clinical disease in wildlife species in Tanzania, although serum samples collected in 2014 from several wild ruminant species were PPRV sero-positive. Similarly, no PPR disease has been observed in cattle and camels. In these atypical hosts, serological evidence indicates exposure to PPRV infection, most likely through spillover from infected sheep and goats. Some of the challenges for PPRV eradication in Tanzania include movements of small ruminants, including transboundary movements, and the capacity of veterinary services for disease surveillance and vaccination. Using wildlife and atypical domestic hosts for PPR surveillance is a useful indicator of endemism and the ongoing circulation of PPRV in livestock, especially during the implementation of vaccination to control or eliminate the disease in sheep and goats. PPR disease has a major socio-economic impact in Tanzania, which justifies the investment in a comprehensive PPRV eradication programme.

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