Organ Condemnation Research Articles

Main causes of cattle slaughter condemnation under the state sanitary inspection in Bahia, Brazil

Slaughter condemnations are important sources of information on cattle health and handling. The aim of this study was to evaluate the main causes of condemnation of cattle slaughter under the state sanitary inspection by the Diretoria de Inspeção de Produtos de Origem Agropecuária (DIPA) of Agência de Defesa Agropecuária da Bahia (ADAB), in Bahia, Brazil. A retrospective data of all cattle slaughtered from 2012 to 2019 was obtained from DIPA – ADAB. During this period, 4,635,615 cattle were slaughtered and 1,452,472 (31.33%) condemnations were registered to have occurred at varying levels in all regions of the state. The more condemned organs were kidneys and lungs; and the main causes of condemnation were nephritis (11.79%), congestion (11.20%), emphysema (10.72%), blood aspiration (8.36%), renal cysts (5.75%), and abscesses (5.71%). However, other condemnation causes such as cysticercosis, fasciolosis, and tuberculosis were observed at lower rates. Results showed that the main causes of condemnation of cattle slaughter were not related to zoonotic diseases instead were more involved in partial condemnation of organs.

Causas de morte e condenação de órgãos no abate de ovinos em sistema de confinamento no Sul do Rio Grande do Sul

ABSTRACT: In Brazil the second largest sheep herd is in Rio Grande do Sul and in recent years the demand for meat consumption of this specie has increased. Intensive farming systems have made considerable progress in this region with the objective of increasing the production of sheep for slaughter and obtaining a uniform batch to ensure better quality of sheep meat to consumers. However, the agglomeration and stress that animals go through can lead to the occurrence of illnesses and economic loss to producers. The objectives of this paper were to determine the main causes of death that affected sheep in a feedlot system, to establish forms of control and prophylaxis of diagnosed illnesses, and to estimate the economic losses resulting from them. The objective was also to determine the causes of condemnation of organs or carcasses in the slaughterhouses that processed the sheep were sent, and to estimate the losses in this productive sector. For this, a follow-up work was carried out in an establishment located in the city of São Lourenço do Sul, Rio Grande do Sul, from October 2020 to September 2021. The dead sheep at the feedlot were necropsied, and the diagnosis was made based on clinical signs, pathology, and bacteriology. The main diseases diagnosed were parasitic enteritis (15.4%), pneumonia (13%), and listeriosis (9.6%). In the slaughterhouse study, the lesions that led to the highest number of condemnations were hydatidosis (29.9%), renal congestion (26.2%), and renal ischemia (25.8%). The economic losses estimated for the death of sheep in 2021 was R$17,480.00, significantly lower than the approximate losses in 2019 and 2020 of R$50,000.00 and R$54,000.00, respectively. This highlights the importance of technical assistance to reduce these losses due to mortality in sheep raised in a feedlot system. It was also observed the kidneys of the sheep were the organs most frequently selected for condemnation. The economic value of the kidneys sold as disposed waste was eight time lower than that the value of kidneys suitable for consumption.

Study on the Prevalence and Estimation of Monetary Loss of Hydatidosis in Cattle Slaughtered at Bedeno Municipal Abattoir, East Hararghe, Ethiopia

Aim This study was conducted by using the protocols of standard meat inspection (visual, palpation and incision) to assess the prevalence and associated risk factors and to estimate the economic loss in cattle slaughtered at Bedeno Municipal Abattoir, Eastern Hararghe, Ethiopia. Method A cross-section study design was conducted from February 2020 to November 2020, to determine the prevalence and its associated risk factors of bovine hydatidosis is taking animal origin, sex and age and body condition as risk factors. Results From A total of 355 cattle examined using the protocol of standard meat inspection, 99(27.8%) of them are found positive to hydatid cysts. The prevalence of cattle hydatidosis based on animal origin was highest in older cattle 89(29.47%) than young 10(18.89%). Regarding body condition, score to significance variation was observed, as the prevalence was 41.89% for poor cattle followed by medium 24.07% and good 24.37%. Of the total 99 infected, 41(11.55%) of animals were infected in their lungs with only hydatid cysts and 24(6.76%) were infected in their liver, but the rest animals had multiple organ infections, 34(9.58%). Considering the current result, the total annual economic loss from organ condemnation and carcass weight loss due to bovine hydatidosis at Bedeno Municipal Abattoir was estimated at 6,671,803.8 Ethiopian birr (ETB). Conclusion This study reveals that cattle hydatidosis was a high prevalence diseases in the study area and needs paucity of information on control and prevention. The cattle owners to be educated and awareness programmes to be conducted about the diseases.

Causes of organ condemnation in food animals slaughtered at a municipal abattoir in Oyo State, Nigeria

Introduction: The abattoir is a registered premise where food animals are hygienically processed and converted to meat through methodical inspection carried out by certified public health veterinarians. This study was conducted to assess the causes of organ condemnation in food animals slaughtered at the Bodija abattoir in Oyo state. Methods: A retrospective abattoir-based survey was conducted for the year 2014. The data collected included: the throughput of food animals slaughtered, various disease conditions recorded, total number of suspected and laboratory based confirmed cases (where available) respectively, and total number of condemnations (partial or total condemnation) with organs involved. Data collected were analysed using descriptive and one-way Analysis of Variance test (ANOVA). Results: A total of 9527 (433.0±144.4), 1488 (67.6±52.4), 4971(226.0±132.9), and 1195(54.3±18.6) cattle, sheep, goat and pigs were slaughtered respectively. Some of the slaughtered cattle, sheep and goat, 29.4% (n = 1822), 1.4 % (n = 1488) and 3.8% (n = 4971) respectively, had abnormal conditions that led to condemnations of organs respectively. For organ specific condemnations, 447 (21.7%) and 141 (6.8%) livers were condemned due to fasciolosis and hepatitis respectively. Pimply gut, pneumonia and nephritis accounted for 433 (21.0%) intestines, 141 (6.8%) lungs and 88(4.3%) kidneys condemnations respectively. Overall, tuberculosis accounted for 402 (19.5%) condemnations of lungs, liver, kidneys and spleens. Significance: Organ condemnations constitute a huge meat loss and reduction in per capita animal protein consumption. It is emphasized in this work that pathological conditions encountered at the abattoir are preventable if adequate disease surveillance and control programs are implemented at critical control points of the red meat value chain.

Food chain information systems in medium- and smallsized slaughterhouses of central Italy and organ and carcass condemnations: A five-year survey.

The flow of information between farms and slaughterhouses about animal health, is a fundamental process for modern meat inspection. The information provided by Food Chain Information (FCI) systems in medium-small sized slaughterhouses in central Italy, focusing on the data provided on the animal’s health status, was performed through a five-year survey together with the number of organ and carcass condemnation for bovine, swine and ovine. The annual prevalence of condemnation was higher in bovine (from 10.49% in 2015 to 17.16% in 2019) than swine (from 6.39% in 2015 to 12.64% in 2019) and ovine (from 8.05% in 2019 to 8.98% in 2017), and an overall prevalence increase was observed in bovine and swine, throughout the years. The frequent lack of Food Chain Information (FCI) from farms to slaughterhouses should be emphasised, taking into consideration that a poor implementation of the system by farmers, could lead to a persistent risk of disease at farm level for these two species.

Cattle welfare assessment at the slaughterhouse level: Integrated risk profiles based on the animal’s origin, pre-slaughter logistics, and iceberg indicators

Detection of on farm and transport animal welfare problems at slaughterhouse level is a key issue for the meat industry; however, usually, the assessments do not include basic aspects of animal health. For that reason, it is necessary to develop an assessment method that has an integrative scope and identifies the risk profiles in animals. Therefore, the aim of the present study was to detect cattle welfare indicators that can be implemented at the slaughterhouse level and to develop integrated risk profiles based on the animal’s origin, pre-slaughter logistics, and animal-based indicators. We recorded the origin, commercial category, transportation details, and horn size of 1040 cattle upon arrival at the slaughterhouse. Cattle welfare was measured based on individual scores for vocalizations, stunning shots, carcass bruises, meat pH, severe hoof injuries, and organ condemnations. To characterize operational and logistic practices from the farm to the slaughterhouse, a two-step cluster analysis was applied to the aforementioned variables (production system, cattle type, horn size, journey distance, vehicle type), which identified four clusters: small feedlot and free-range profile (C1, n = 216, 20.8 %), feedlot profile (C2, n = 193, 18.6 %), culled dairy cows profile (C3, n = 262, 25.2 %), and free-range profile (C4, n = 369, 35.5 %). The animal’s diet and environmental conditions might have influenced the development of hoof disorders in C1 animals (P = 0.023), the proportion of animals that were re-shot was highest in C2 animals (P = 0.033), and C3 and C4 animals were most likely to suffer injuries such as severe bruising (P = 0.001). In addition, the number of stunning shots, meat pH, carcass bruises, severe hoof injuries, and liver condemnations, explained a significant variation in the incidence of various health and welfare consequences based on an animal’s origin, which confirmed their importance as ‘welfare iceberg’ indicators. The study provided detailed data that can be included into assessment methods for the welfare of slaughter cattle, which can be tailored to specific production systems.

Prevalence, Fertility, and Viability of Cystic Echinococcosis in Cattle Slaughtered at Adaba Abattoir, West Arsi Zone, Ethiopia

Introduction: Cystic echinococcosis is a zoonotic infection caused by larval stage of Echinococcus granulosus, which is a widely prevalent disease of public health and economic importance. This cross-sectional study was undertaken from January to July 2019 in Adaba abattoir to estimate the prevalence of cystic echinococcosis, investigate its potential risk factors, and to characterize the cysts. Materials and Methods: A total of 400 samples were collected and processed. The study animals were chosen using a simple random sampling method. Potential risk factors were assessed by ante-mortem examination. A post-mortem examination was also performed, which included a primary examination (visual inspection and palpation of the lung, liver, heart, spleen, and kidney) and a secondary examination (incisions into each organ in the presence of one or more hydatid cysts). The total number of cysts found per organ and their sizes were recorded. The prevalence of cystic echinococcosis was summarized using descriptive statistics, and the chi-square test was used to assess infection status in relation to the hypothesized risk factors. A probability level of P < 0.05 was set for statistical significance. Results: The overall prevalence of cystic echinococcosis was recorded to be 34.5% (95% CI: 14.69-22.90). The disease was statistically significantly (P < 0.05) associated with age and body condition scores, but insignificantly (P3> 0.05) associated with gender. Of the total of infected cattle, a large number of cysts were found in lung 60 (35.7%). After characterization of the cysts based on size, 69 (48.9%), 62 (43.9%), and 10 (7.1%) cysts were categorized as small, medium, and large, respectively. Of the total cysts examined, 27 (16%) were calcified, 101 (60.1%) were sterile, and 33 (23.9%) were fertile. Out of the total fertile cysts identified, 25 (62.5%) were found to be viable and 15 (37.5%) were non-viable cysts. Conclusion: It is deduced that cystic echinococcosis is widespread in cattle slaughtered and it is a major cause of organ condemnation at Adaba abattoir. Therefore, it is imperative that efficient meat inspection service and safe disposal of condemned organs should be meticulously practiced in order to control this parasitic zoonosis.

Prevalence of parasitic conditions most responsible for bovine organ and carcase condemnations in Matabeleland abattoirs :2012-2016

Prevalence of parasitic conditions most responsible for bovine organ and carcase condemnations in Matabeleland abattoirs :2012-2016

Major Cause of Organ Condemnations and their Economic Loss at Different Municipal Abattoirs and Export Abattoirs in Ethiopia

This study was conducted to determine the major cause’s organ Condemnations and their economic loss in municipal and export abattoirs in Ethiopia. Across sectional and a retrospective abattoir survey was conducted at municipal and export abattoirs respectively

Prevalence and risk factors of Taenia hydatigena in dogs, pigs, and cattle in the Central Highlands of Vietnam.

Taenia hydatigena is a globally distributed canine tapeworm. The canine tapeworm results in economic impacts for farmers owing to organ condemnation. T. hydatigena utilizes dogs and other carnivores as definitive hosts while swine and ruminants serve as intermediate hosts. T. hydatigena is endemic in Vietnam; however, information on the prevalence and risk factors associated with infection is scarce. This cross-sectional study aims to identify the prevalence of T. hydatigena taeniasis in dogs and T. hydatigena cysticercosis in pigs and cattle. The risk factors associated with taeniasis in dogs were identified using a fixed effects logistic regression model and quantified using population attributable fractions. The prevalence of T. hydatigena taeniasis in dogs and T. hydatigena cysticercosis in pigs and cattle was 10.31% (95% CI 8.21 to 12.84%), 7.60% (95% CI 6.34 to 9.08%), and 11.11% (95% CI 7.63 to 11.81%), respectively; these levels were lower than those reported in other regions of Vietnam. The population attributable fraction of risk factors associated with T. hydatigena taeniasis in dogs for dogs living in proximity of an abattoir, those having access to raw pork or beef viscera, and those living in multi-dog households were 80%, 19%, and 7%, respectively. This current study identified and quantified the risk factors for taeniasis in dogs thus advocating for targeted community intervention programs to break the lifecycle of T. hydatigena in Dak Lak province.

Causes of dromedary (Camelus dromedaries) carcass and organ condemnation at slaughter and its economic importance: 5-year retrospective study, Isfahan province, Iran

A 5-year retrospective study in dromedaries (Camelus dromedarius) slaughtered in abattoirs was carried out in Isfahan province, central Iran to identify the major causes for condemnation of carcasses and viscera. The economic importance of lost meat and offal also were estimated. Between April 2014 and April 2019, 17,336 dromedaries were slaughtered in the study area; the lungs of 4,002 (23.08 %, Mean ± SEM: 27.27 ± 2.2), the livers of 1,726 (9.96 %, Mean ± SEM: 13.65 ± 1.42), the carcasses of 46 (0.27 %, Mean ± SEM: 0.37 ± 0.06) and the kidneys of 113 (0.65 %, Mean ± SEM: 0.75 ± 0.11) of these animals were condemned. More organs and carcasses were condemned in spring (43.71 %) and winter (39.35 %) than in summer or autumn (p < 0.001). Condemnation of lungs and livers was primarily attributed to cystic echinococcosis with a rate of 22.49 % and 8.92 %, respectively. In contrast, carcasses and kidneys were condemned for non-parasitic causes related to cachexia (0.16 %) and nephritis (0.37 %), respectively. Parasitic and non-parasitic causes were respectively responsible for 31.43 % and 2.53 % of all condemned organs and carcasses, with a retail value (based on market prices in 2019) of RIAL 4,977,200,000 (USD 35,551.42) and RIAL 2,283,800,000 (USD 16,312.85), respectively. The findings of this study provide baseline data for future monitoring to assess the impact of education and training. In addition, the data on the cost of these infections at slaughter can be used in education programs to encourage changes in management which also could impact overall health of the dromedaries.

Evaluation of zoonotic platyhelminthe infections identified in slaughtered livestock in Iran, 2015\u20132019

BackgroundPlatyhelminth infections of livestock can result in considerable economic losses. This study aims to evaluate the spatial frequency of cystic echinococcosis (CE), dicrocoeliasis, and fascioliasis in livestock slaughtered in Iran during the years 2015–2019 and estimate direct costs associated with organ condemnation due to these parasites.MethodsAbattoir data from 413 abattoirs representing all 31 Iranian provinces were collected from the Iran Veterinary Organization. Infection prevalence was calculated per year at the province level. The Local Moran’s I statistic was performed to evaluate spatial autocorrelation of animals positive at slaughter for the years 2015–2019. Direct costs associated with condemned livers were calculated for each parasitic condition, with costs associated with condemned lungs also included for CE.ResultsOverall prevalence values for the study timeframe were as follows: sheep and goat fascioliasis 1.56% (95% CI: 1.56–1.56%), cattle fascioliasis 3.86% (95% CI: 3.85–3.88%), sheep and goat dicrocoeliasis 4.63% (95% CI: 4.62–4.63%), cattle dicrocoeliasis 3.08% (95% CI: 3.07–3.09%), sheep and goat CE 5.32% (95% CI: 5.32–5.33%), and cattle CE 7.26% (95% CI: 7.24–7.28%). Northwest Iran had the highest prevalence of CE and fascioliasis. High infection areas for Dicrocoelium spp. included the provinces of Zanjan, Gilan, Qazvin, and Tehran, which are located in northern Iran. Direct economic losses for sheep and goat fascioliasis, dicrocoeliasis, and CE for the study period were US$13,842,759, US$41,771,377, and US$22,801,054, respectively. Direct economic losses for cattle fascioliasis, dicrocoeliasis, and CE for the study period were US$1,989,200, US$1,668,986, and US$2,656,568, respectively.ConclusionOur findings provide valuable data for future monitoring of these important parasitic diseases in Iranian livestock. Disease control strategies are required to reduce the economic and public health impact of these platyhelminths.

Cystic echinococcosis: an emerging zoonosis in southern regions of Khyber Pakhtunkhwa, Pakistan

BackgroundCystic echinococcosis (CE) is one of the principal causes of economic loss to the livestock industry because of its morbidity and mortality of food-producing animals and condemnation of important visceral organs. Pakistan being an agricultural country having an extensive livestock sector, is mostly practiced by poor people, which has a fundamental role in the economy. The present study was aimed to conduct a cross-sectional survey and PCR based confirmation of Echinococcus granulosus in sheep, goats, cows, and buffaloes from southern regions (three districts: Lakki Marwat, Bannu, and Karak) of Khyber Pakhtunkhwa, Pakistan. During the study, a total of 2833 animals were examined randomly including; sheep (n = 529), goats (n = 428), cows (n = 1693), and buffaloes (n = 183). Hydatid cysts were collected and examined for the presence of protoscoleces using microscopy. Detection of DNA was performed by using PCR and two mitochondrial genetic markers namely; NAD-1 and COX-1 were amplified.ResultsThe overall prevalence of CE was found to be (9%) among the examined animals. The hydatid cyst infection was highly prevalent in buffaloes (12%), followed by sheep (10%), cows (9%), and goats (5.1%). Cystic echinococcosis was more prevalent (10%; 96/992) in district Lakki Marwat followed by district Bannu (9%; 112/1246) and Karak (7%; 39/595). Female animals were more likely to be infected with CE (11.6%) than male animals (5.3%) (p = 0.001). Similarly, the infection was higher in the older group of animals as compared to younger (p = 0.001). Mostly (52.2%; n = 129) of hydatid cysts were found in the liver, while (64.4%; n = 159) cysts of the infected animals were infertile. PCR based identification confirmed the presence of E. granulosus sensu stricto (s.s) in the study area.ConclusionCystic echinococcosis was found to be highly prevalent in southern regions of Khyber Pakhtunkhwa and could be a potential threat to human health. Moreover, molecular sequencing and phylogenetic analyses should be carried out in future to identify the prevailing genotype (s) of E. granulosus s.s.

Parasitic causes of meat and organs in cattle at four slaughterhouses in Sistan-Baluchestan Province, Southeastern Iran between 2008 and 2016.

This 8‐year (from 2008 to 2016) retrospective study calculated the percentage of carcass and organ (lung and liver) condemnations and estimated the direct financial costs at four slaughterhouses in Sistan‐Baluchestan Province, Southeastern Iran. Each carcass and organ (lung and liver) was thoroughly examined through inspection, palpation and incision following the standard protocol. Identification of the parasites was performed macroscopically. The total direct economic loss due to meat's condemnation was estimated by adding weights of each organ or carcass part and multiplying individual organ totals by their 2016 market unit price. A total of 857,039 cattle were slaughtered during this period, 64,497 livers (7.5%), 31,401 lungs (3.6%) and the carcasses of 1,171 cattle (0.1%) were condemned due to lesions caused by parasites. The main parasitic lesions in the condemned livers were attributed to Echinococcus granulosus (4.2%), Fasciola spp. (3.1%) and Dicrocoelium dendriticum (0.1%). All the condemned lungs were due to E. granulosus (3.6%). Taenia saginata cysticerci were detected in 0.1% of inspected animals. Liver condemnation due to cystic echinococcosis was the highest in fall (4.7%, p < 0.001); while lung condemnation was the highest during spring (3.98%, p < 0.001). Liver condemnation due to Fasciola spp. was the lowest in winter (2.99%, p < 0.001). Carcass condemnation as a result of cysticercosis was the highest in summer (p < 0.001). Considering the 2016 market prices, condemnations due to the studied parasites caused direct costs estimated U.S. $ 3,191,879. To the best of our knowledge, this is the first report estimating the monetary losses due to parasitic infections in the slaughterhouses of this province. Due to the high financial impact of the studied parasites, a control programme should be implemented to decrease this impact.

Prevalence and Economic Significance of Hydatidosis on Cattle Slaughtered at Nekemte Municipal Abattoir, Western Ethiopia

Aim The study was conducted to determine the prevalence of hydatidosis, to identify the association between expected risk factors and occurrence of the disease, to investigate economic importance and to evaluate fertility and viability of the hydatid cyst in cattle slaughtered at the abattoir. Materials and Methods A cross-sectional study, which involves both ante-mortem and post-mortem examination, was conducted at Nekemte municipal abattoir from November 2015 to March 2016. Results A total of 355 local cattle breed was randomly sampled and examined for the presence of hydatid cysts in the organs of the animals using the standard meat inspection procedures, 66 (18.6%) animals were found harboring hydatid cysts. Statistical analysis showed that there was a significant difference (p&lt;0.05) between the prevalence of bovine hydatidosis in all risk factors with exception of sex of the animals. Among 207 hydatid cysts recorded, 93 (44.92%) were from lungs, 65 (31.40%) from livers, 4 (1.93%) from heart, 3 (1.44%) from kidney, 1 (0.48%) from spleen and 41 (19.8%) were in two organs from lung and liver. Fifty-seven (57) of these 207 cysts were randomly selected and subjected to fertility and viability test which revealed 19 (33.33%) as fertile, 25 (43.86 %) sterile and 13 (22.81%) calcified. Viability test proved 7 (12.28%) of 19 fertile cysts as viable and 12 (21.05%) of 19 fertile cysts as non-viable. Viability of cysts in different organs revealed that 5 (16.1%) and 2 (10%) of cysts from lungs and liver, respectively. The estimated financial loss during the study period both due to condemnation of organs and an in direct carcass weight loss from hydatidosis was 2,190,143.52 ETB. Conclusion The results of this study revealed that bovine hydatidosis was an economically important disease of cattle which need serious attention for prevention and control actions in and around Nekemte. Hence, establishment of well-equipped standardized abattoirs, prohibition of backyard slaughter, creation of public awareness, deworming and control of stray dogs are of paramount importance.

Prevalence and economic loss of bovine tuberculosis in a municipal abattoir, Abeokuta Southwestern Nigeria

A 12 month cross-sectional study was carried out at Lafenwa Abattoir Abeokuta, Southwestern Nigeria from July, 2011 to June, 2012. This was to determine the prevalence and economic loss of bovine tuberculosis in this abattoir. A total of 928 cases of bovine tuberculosis out of 52,273 cattle slaughtered during this period were condemned, representing a total prevalence of 1.78% (95% CI: 1.31- 2.14%). Typical tuberculous lesions were found in the Lung, Liver and Spleen, higher rate of organ condemnation was observed in the lung followed by liver and spleen. There was statistically significant difference in rate of organ condemnation (P&lt;0.05). The monthly prevalence and sequence plot revealed an epidemic tendency for bovine tuberculosis during this period and there was statistically significant difference between prevalence of bovine tuberculosis and seasonal occurrence. An estimated total loss of N1.2 million (US$7,367) due to bovine tuberculosis was observed in this abattoir for the year. It was concluded that bovine tuberculosis is prevalent with epidemic tendency in cattle destined for human consumption, also with attending serious public health implications and huge loss to both the butchers and national economy.

Review on Epidemiology and Public Health Significance of Hydatidosis.

Hydatidosis is a zoonotic parasitic disease caused by larval stages (hydatid cysts) of cestodes belonging to the genus Echinococcus and the family Taeniidae. Hydatid cyst, which is the larval stage of Echinococcus, is a bladder-like cyst formed in various organs and tissues following the growth of the oncospheres of an Echninoccus tape worm in that specific organ or tissue. The epidemiology and control of hydatidosis is often considered to be a veterinary matter since the disease can be regulated by controlling parasites in animals. However, collaboration between veterinarians and public health workers is essential for the successful control of hydotidosis. Therefore, the objective of this paper was to review The epidemiology, economic and public health importance of hydatidosis. The developmental stage of Echinococcus is that eggs develop to oncospheres, this oncospheres develop to hydatid cyst in the intermediate host and the hydatid cyst if consumed by final host develops to the adult Echinococcus. Human echinococcosis is a zoonotic infection caused by the tape worm of the genus Echinococcus. Echinococcus granucosus granulosis cause cystic echinococcosis (CE), Echinococcus multilocularis cause alveolar echinoloccosis (AE), and Echinococcus vogeli and Echinococcus oligarthus cause polycystic echinococcosis (PE). From these Echinococcus mulitilocularis is rare but is the most virulent, Echinococcus vegeli and Echinococcus oligarthus are the rarest. Hydatidosis is a zoonotic cosmopolitan parasitic disease found in almost all countries of the world. This disease causes a significant economic loss directly by causing organ or carcass condemnation and indirectly by affecting human and animal health which increase the cost for diagnosis, treatment and control of the disease. Public awareness creation about the transmission and control of the disease and its public health significance and collaboration between veterinarians and public health workers in the prevention and control of the disease is mandatory.

Assessing the value of bacteriological examination as a diagnostic tool in relation to meat inspection in cattle

In Denmark, lesions indicating acute generalised infection identified at meat inspection will result in total condemnation. An official bacteriological examination (BU) protocol can be used for slaughtered animals with lesions such as endocarditis and endophlebitis as an assisting diagnostic tool to confirm whether the condition is local or generalised. If local, the carcass can be approved after condemnation of the relevant organs. The BU involves cultivating samples from the spleen and muscle. The aim of this study was to assess the value of the BU protocol.The study was conducted from February to May 2019 at a Danish cattle abattoir. Three groups of slaughtered cattle were included: 24 cases consisting of cattle with endocarditis and endophlebitis, 25 control animals consisting of cattle fully approved at inspection and 16 animals condemned at inspection due to endocarditis and endophlebitis with complications. Samples were taken from the heart, liver, kidney, lung, spleen and muscles of each animal. The BU protocol was used for cultivation. Different types of colonies were identified using MALDI-TOF-MS analysis.One or more samples with bacterial growth were found in all condemned animals – in 16 out of the 24 case animals and in two out of 25 control animals. In all three groups, Trueperella pyogenes was the most frequently isolated bacterium (60%) followed by Fusobacterium necrophorum (10%). For the case animals, the organ most commonly found with bacterial growth was the liver (46%), followed by the lung (38%) and the kidney (38%), while 96% of the muscle samples were negative. For the condemned group, bacterial growth was found in 75% of the spleen samples, 56% of liver and lung samples, and 50% of the muscle samples. A statistical analysis of the samples from cases and controls showed strong pair-wise associations for the presence of bacteria between organs, but no pair-wise associations between presence of bacteria in the muscle and any of the organs. Hence, if bacteria are found e.g. in the liver, they are likely to be found in other organs, but not in the muscle. In total, 20 of the 24 case animals were fully or partly approved in accordance with the current rules for judgement.It was concluded that the BU protocol using spleen and muscle samples would be suitable as a diagnostic tool for the judgement of slaughtered animals in cases where there is doubt about the stage of the lesions observed.

A new molecular nomenclature for Taenia hydatigena: mitochondrial DNA sequences reveal sufficient diversity suggesting the assignment of major haplotype divisions.

Cysticercosis caused by the metacestode larval stage of Taenia hydatigena formerly referred to as Cysticercus tenuicollis is a disease of veterinary importance that constitutes a significant threat to livestock production worldwide, especially in endemic regions due to condemnation of visceral organs and mortality rate of infected young animals. While the genetic diversity among parasites is found to be potentially useful in many areas of research including molecular diagnostics, epidemiology and control, that of T. hydatigena across the globe remains poorly understood. In this study, analysis of the mitochondrial DNA (mtDNA) of adult worms and larval stages of T. hydatigena isolated from dogs, sheep and a wild boar in China showed that the population structure consists of two major haplogroups with very high nucleotide substitutions involving synonymous and non-synonymous changes. Compared with other cestodes such as Echinococcus spp., the genetic variation observed between the haplogroups is sufficient for the assignment of major haplotype or genotype division as both groups showed a total of 166 point-mutation differences between the 12 mitochondrial protein-coding gene sequences. Preliminary analysis of a nuclear protein-coding gene (pepck) did not reveal any peculiar changes between both groups which suggests that these variants may only differ in their mitochondrial makeup.

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Caseous lymphadenitis (CLA) caused by the pathogenic bacterium, Corynebacterium pseudotuberculosis, results in economic loss in goat farming. Its prevalence in Brazilian herds varies from 5 to 50%, generating expenses with treatment, loss in production, carcass and organ condemnation, and reduced price of the hide. This study aimed to describe the distribution of lesions and quantify the loss associated with CLA in goat breeding due to condemnation in a slaughterhouse located in a semiarid region. The study was conducted at the municipal slaughterhouse of the city of Patos, State of Paraíba, Northeastern Brazil, where goats from this intermediate geographical region are slaughtered. In 2017, 3,662 animals were slaughtered, an average of 305 per month. During the study period, from March to August 2017, 304 goats of both sexes and different ages of undefined breed were assessed. In the ante-mortem examination, inspection and palpation of the superficial lymph nodes was done; in the post-mortem examination, organ and viscera were assessed. The caseous material collected was sent for microbiological analysis. Of the 304 individuals, 227 [74.67% (95% CI: 69.50-79.23)] did not have any lesions, while 77 [25.33% (95% CI: 20.77-30.50)] showed abscesses suggestive of CLA, which was confirmed in 65 goats [84.41% (95% CI: 76.30-92.50)]. Sex (P = 0.044) and age (P = 0.002) were associated with infection. While the sex of the animals affected carcass and viscera weights and carcass yield, their age affected live weight, carcass, organ, and viscera weights; conversely, the incidence of CLA did not affect these variables. The average price in Real (R$) of a kilogram (kg) of goat meat cuts and "offal" was used to calculate the economic loss. Considering the average carcass weight (11,485 kg), organ weight (1,085 kg), and viscera weight (2,013 kg), 4,433.232 kg of meat was produced, resulting in R$ 72,945.43. The condemnations resulted in the loss of 269.894 kg, which is equivalent to R$ 4,540.33. CLA is responsible for a negative impact of 6.09% on production. Implementing control measures for this disease is important to increase the financial return in goat farming.