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Comparative Analysis of Animal Welfare in Three Broiler Slaughterhouses and Associated Farms with Unsatisfactory Slaughterhouse Results.

The objective of this study was to assess the health and welfare of 70 commercial broiler flocks (transport batches) in three distinct slaug … e audited. FPD, HB, DoA, and the condemnation rate were the most crucial indicators for identifying farms with inadequate welfare conditions. These indicators should be systematically integrated into the welfare monitoring of broilers in slaughterhouses. Audits conducted on farms detected some noncompliance with regulatory welfare standards and suggeste …

Какие факторы влияют на потребление антибиотики на фермах Q-Fever-Positive Dairy в Северной Германии?

Цель этого исследования заключалась в изучении вопроса о том, может ли применение вакцины COXEVAC (Ceva Sante Animale) сократить потребление антибиотиков на молочных фермах с положительной температурой Q. Кроме того, были исследованы последствия применения других стадных факторов для потребления антибиотиков. В этом продольном когортном исследовании приняли участие в общей сложности 36 ферм с вакцинацией и 13 ферм без вакцинации. Во всех стадах был прямо или косвенно поставлен диагноз " Coxiella signetii " . Для сопоставления частотности лечения антибиотиков между группой вакцинирова

Совпадение в аннотации оригинала
It was the aim of this study to examine whether the usage of the vaccine COXEVAC® (Ceva Santé Animale) could reduce the consumption of antibiotics in Q-fever-positive dairy farms. Additionally, the effects of other herd-level factors on the consumption of antibiotics were investigated. A total of 36 farms with vaccination and 13 farms without vaccination par…

Prevalence and Associated Factors of optrA-Positive-Enterococcus faecalis in Different Reservoirs around Farms in Vietnam.

Linezolid is an antibiotic of last resort for the treatment of infections caused by Gram-positive bacteria, including vancomycin-resistant e … study aiming to investigate the prevalence of optrA positive E. faecalis (OPEfs) in 6 reservoirs in farms in Ha Nam province, Vietnam, and its associated factors and to explore genetic relationships of OPEfs isolates. Among 639 collected samples, the prevalence of OPEfs was highest in flies, 46.8% (51/109), followed by chickens 37.3% (72/193), dogs 33.3 …

A survey report on the donkey original breeding farms in China: Current aspects and future prospective.

INTRODUCTION: The number of the large-scale donkey breeding farms in China has increased dramatically. However, information regarding the situation of a Chinese donkey population under large-scale donkey breeding farms is limited. METHODS: This survey report was conducted using questionnaires online to investigate the current situation of the donkey original breeding farms in China, in terms of donkey stock, local breeds, reproductive parameters, growth and lactation performance, and future perspectives. China has developed the donkey reserve system based on national, provincial and non-gover…

Efficacy of flukicides against Fasciola hepatica and first report of triclabendazole resistance on German sheep farms.

Fasciola hepatica infections lead to severe health problems and production losses in sheep farming, if not treated effectively. Triclabendaz … n triclabendazole in a field study conducted from 2020 to 2022. Initial screening included 71 sheep farms, many of them with known history of fasciolosis. In this highly biased sample set, the frequency of F. hepatica infection at individual sheep and farm level were 12.8% and 35.2%, respectively. Additionally, eggs of Paramphistominae were found at fre …

Antimicrobial resistance and population genomics of multidrug-resistant Escherichia coli in pig farms in mainland China.

The expanding use of antimicrobials in livestock is an important contributor to the worldwide rapid increase in antimicrobial resistance (AMR). However, large-scale studies on AMR in livestock remain scarce. Here, we report findings from surveillance of E. coli AMR in pig farms in China in 2018-2019. We isolated E. coli in 1,871 samples from pigs and their breeding environments, and found AMR in E. coli in all provinces in mainland China. We detected multidrug-resistance in 91% isolates and found resistance to last-resort drugs including colistin, carbapenems and tigecycline. We also identifie…

Isolation, identification and antimicrobial susceptibility profile of Salmonella isolated from poultry farms in Addis Ababa, Ethiopia.

BACKGROUND: Salmonella has been found to be the major cause of foodborne diseases and a serious public health problem in the world, with an increasing concern for the emergence and spread of antimicrobial-resistant strains. METHOD: A cross-sectional study was conducted on poultry and poultry farms in Addis Ababa from February 2016 to April 2016 to determine the occurrence and evaluate the antimicrobial susceptibility profile of Salmonella isolates. A total of 200 samples consisting of the cloacal swab (n = 168), pooled litter (n = 12), hand swab (n = 8), pooled feed and water (n = 12) were co…

Antibiofilm activity of a lytic Salmonella phage on different Salmonella enterica serovars isolated from broiler farms.

Bacteriophages have been mainly used in treating infections caused by planktonic bacterial cells in the veterinary sector. However, their applications as antibiofilm agents have received little attention. Accordingly, a previously isolated Salmonella infecting Siphoviridae phage was investigated for host range against 15 Salmonella enterica isolates (S. Cape, S. Gallinarum, 4 S. Enteritidis, 3 S. Montevideo, S. Uno, S. Oritamerin, S. Belgdam, S. Agona, S. Daula, and S. Aba) recovered from the litters of commercial broiler farms. All S. enterica isolates were examined for their biofilm activity…

An epidemiological study of Streptococcus suis prevalence among swine at industrial swine farms in Northern Vietnam.

INTRODUCTION: Streptococcus suis is a zoonotic pathogen found in swine that may cause systemic infection in humans. S. suis is endemic in Southeast Asia and is the leading cause of adult meningitis in Vietnam. Given Vietnam's increasing centralization of the swine industry, we sought to estimate the prevalence of S. suis on large swine farms in Northern Vietnam. METHODS: A cross-sectional, one-health-oriented, surveillance study for S. suis was conducted between October 2019-March 2020. Swine oral, swine worker nasal, and bioaerosol samples were collected from four large-scale swine farms (>5…

Use of anti-tick drugs in dairy farms in the microregion of Alfenas, Minas Gerais, Brazil.

Ectoparasitic infestation in dairy cattle, the most common being Rhipicephalus (Boophilus) microplus, causes significant loss in production. The control of ectoparasites often occurs incorrectly, resulting in resistance to the active ingredients and residues in milk. To understand of acaricide use in the microregion of Alfenas, Minas Gerais (Brazil), questionnaires were applied to the owners of 100 dairy farms in the region and were selected randomly. Dairy farms were allocated according to production scale: up to 150 liters/day, 151-400 liters/day and more than 400 liters/day. The interviewee…

The epidemiology of AmpC-producing Escherichia coli isolated from dairy cattle faeces on pasture-fed farms.

Introduction. Antibiotic use, particularly amoxicillin-clavulanic acid in dairy farming, has been associated with an increased incidence of AmpC-hyperproducing Escherichia coli.Gap statement. There is limited information on the incidence of AmpC-hyperproducing E. coli from seasonal pasture-fed dairy farms.Aim. We undertook a New Zealand wide cross-sectional study to determine the prevalence of AmpC-producing E. coli carried by dairy cattle.Methodology. Paddock faeces were sampled from twenty-six dairy farms and were processed for the selective growth of both extended-spectrum beta-lactamase (E…

Impact of routine Newcastle disease vaccination on chicken flock size in smallholder farms in western Kenya.

BACKGROUND: Poultry represent a widely held economic, nutritional, and sociocultural asset in rural communities worldwide. In a recent longitudinal study in western Kenya, the reported mean number of chickens per household was 10, with increases in flock size constrained principally by mortality. Newcastle disease virus is a major cause of chicken mortality globally and hypothesized to be responsible for a large part of mortality in smallholder flocks. Our goal was to determine the impact of routine Newcastle disease virus (NDV) vaccination on flock size and use this data to guide programs to

Phenotypic and Molecular Patterns of Resistance among Campylobacter coli and Campylobacter jejuni Isolates, from Pig Farms.

The purpose of this research was to characterize the antibiotic resistance patterns of Campylobacter spp. isolated from commercial farrow to finish farms in Greece, and analyze the relevant molecular resistance mechanisms among the resistant Campylobacter isolates. Susceptibility testing to five different classes of antibiotics was performed in 100 C. coli and 100 C. jejuni, previously isolated and identified. All isolates were found susceptible to meropenem. Very high rates of resistance were recorded for tetracyclines (84.5%), medium rates of resistance were recorded regarding quinolones (23…

Seroepidemiology of Toxoplasma gondii in Dairy Cows in Southeastern Brazil: Seropositive Cows on All Farms Investigated.

PURPOSE: This study aimed to estimate the prevalence and identify the risk factors associated with the higher in-herd T. gondii seroprevalence in dairy cows in 37 farms in southern Minas Gerais, Southeastern Brazil. METHODS: Serum samples from 1,105 dairy cows were subjected to an indirect fluorescence antibody test (IFAT 1:64) for anti-T. gondii IgG. The association existing between possible risk factors at the herd level and the seroprevalence were verified through Generalized Estimating Equation (GEE) multiple logistic regression models. RESULTS: Anti-T. gondii antibodies were observed in…

Effects of endometritis on reproductive performance of zero-grazed dairy cows on smallholder farms in Rwanda.

Endometritis is a prevalent post-partum uterine infection in dairy cows resulting in suboptimal reproductive performance. The hypothesis was that endometritis status is associated with suboptimal reproductive performance of postpartum dairy cows managed under zero-grazing feeding practice on smallholder farms. In this study, there was evaluation of effects of endometritis diagnosed at 38.5 ± 14.7 days postpartum (dpp) on subsequent reproductive performance. Reproductive performance of 436 cows from 345 farms was recorded for 210 dpp. Values for reproductive performance indicators were less (P …

Assessment of antibodies against three zoonotic bacteria and associated risk factors in pig farms in Colombia.

The aim of this study was to determine the seroprevalence of Salmonella spp., Mycobacterium bovis and Brucella spp., together with associated risk factors, in pigs from various farms in seven regions of Colombia. A total of 350 blood samples were obtained from pigs at different stages in the production cycle of 23 farms, which were tested using the enzyme-linked immunosorbent assay (ELISA) diagnostic kits Pigtype®-Salmonella Ab (Qiagen®, Hilden, Germany), INgezim TB porcine and INgezim Brucella porcine (Ingenasa®, Madrid, Spain). The overall seroprevalence for Salmonella spp. was 42.85% (n …

Estimating sea lice infestation pressure on salmon farms: Comparing different methods using multivariate state-space models.

Sea lice are ectoparasites of salmonids, and are considered to be one of the main threats to Atlantic salmon farming. Sea lice infestation on a farm is usually initiated by attachment of the free-living copepodid stage derived from the surrounding water, frequently originating from adult lice on the same farm or from neighboring salmonid farms, referred to as internal and external sources, respectively. Various approaches have been proposed to quantify sea lice infestation pressure on farms to improve the management of this pest. Here, we review and compare five of these methods based on sea l…

Cross-sectional study of Leptospira spp. in commercial pig farms in the state of Goiás, Brazil.

Leptospirosis is an infectious, contagious disease highly important to the world pig industry, which causes reproductive loss in breeding he … , equally distributed between nursery, growing, and finishing pigs of 30 intensive farrow-to-finish farms, were analyzed using the microagglutination test (MAT), in order to detect anti-Leptospira spp. antibodies for 24 different Leptospira spp. serovars. An occurrence of 4.67% (55/342) seropositive samples were detected in fattening pigs. The variables …

rOmpF and OMVs as efficient subunit vaccines against Salmonella enterica serovar Enteritidis infections in poultry farms.

Salmonella enterica serovar Enteritidis remains the most prevalent serotype causing human salmonellosis through the consumption of contaminated foods, especially poultry products. The development of a subunit vaccine against S. Enteritidis can not only protect chickens against Salmonella infection in the poultry industry but also cut the transmission sources. In this study, both the expressed recombinant outer membrane protein F (rOmpF) and extracted outer membrane vesicles (OMVs) were developed as subunit vaccines against S. Enteritidis challenge in chickens. Immunization with the subunit vac

Distribution characteristics of antibiotic resistant bacteria and genes in fresh and composted manures of livestock farms.

Livestock manure is a major reservoir of antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs). This study investigated the distribution characteristics of ARB, ARGs in fresh and composted manures of traditional breading industry in rural areas in China. Samples collected were naturally piled without professional composting, and will be applied to farmland. The real-time quantitative polymerase chain reaction (qPCR) results showed the presence of ten target ARGs and two mobile genetic elements (MGEs) in the tested manure samples. The relative abundance of tetracycline and