Tài liệu miễn phí Nông nghiệp
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First report and genetic characterization of bovine torovirus in diarrhoeic calves in China
Coronaviruses are notorious pathogens that cause diarrheic and respiratory diseases in humans and animals. Although the epidemiology and pathogenicity of coronaviruses have gained substantial attention, little is known about bovine coronavirus in cattle, which possesses a close relationship with human coronavirus.
4/6/2023 9:13:00 PM +00:00
Neural differentiation of canine mesenchymal stem cells/multipotent mesenchymal stromal cells
The ability of adipose tissue-derived multipotent mesenchymal stromal cells/mesenchymal stem cells (ASCs) to differentiate in neural lineages promises progress in the field of regenerative medicine, especially for replacing neuronal tissue damaged by different neurological disorders.
4/6/2023 9:12:52 PM +00:00
Dogs as a source of Salmonella spp. in apparently healthy dogs in the Valencia Region. Could it be related with intestinal lactic acid bacteria
Although salmonellosis is considered one of the most important food-borne zoonotic diseases in Europe, close contact between dogs and their owners can also be a potential source of Salmonella spp. for humans.
4/6/2023 9:12:43 PM +00:00
Non-invasive sampling in Itatiaia National Park, Brazil: Wild mammal parasite detection
Non-invasive sampling through faecal collection is one of the most cost-effective alternatives for monitoring of free-living wild mammals, as it provides information on animal taxonomy as well as the dynamics of the gastrointestinal parasites that potentially infect these animals.
4/6/2023 9:12:36 PM +00:00
A molecular survey and phylogenetic analysis of porcine circovirus type 3 using oral fluid, faeces and serum
Porcine circovirus type 3 is the most recently discovered porcine circovirus, and an emerging pathogen. In this study the status of its presence on some Slovenian farms is reported. The effectiveness of the vaccine against porcine circovirus type 2 was assessed against porcine circovirus type 3.
4/6/2023 9:12:29 PM +00:00
Antimicrobial resistance and prevalence of tetracycline resistance genes in Escherichia coli isolated from lesions of colibacillosis in broiler chickens in Sistan, Iran
Antibiotics have long been the first line of defense to prevent Escherichia coli infections, but they have lost their potency since bacteria have grown increasingly resistant to treatment. The present research aimed to study the drug resistance and the prevalence of tetracycline resistance genes in E. coli isolated from broilers with colibacillosis.
4/6/2023 9:12:18 PM +00:00
Evaluation of vacuum phenomenon in dogs with coxofemoral degenerative joint disease using computed tomography
Degenerative joint disease (DJD) is a common orthopedic lesion in the coxofemoral joint of canine patients. Concurrent with the sign of degeneration, the vacuum phenomenon (VP), or intra-articular gas, has been observed in several locations in both human and canine patients.
4/6/2023 9:12:11 PM +00:00
Risk factors for poor health and performance in European broiler production systems
Conventional broilers are currently one of the most efficient protein converters. Although decades of progress in genetic selection and feed formulation have lead to high standards of efficient broiler production, still a lot of variability is found between farms and between successive flocks.
4/6/2023 9:12:04 PM +00:00
The prevalence and mechanism of fluoroquinolone resistance in Escherichia coli isolated from swine farms in China
It has been demonstrated that swine waste is an important reservoir for resistant genes. Moreover, the bacteria carrying resistant genes and originating from swine feces and wastewater could spread to the external environment. Fluoroquinolones (FQs) are widely used in livestock and poultry for the treatment of bacterial infections.
4/6/2023 9:11:57 PM +00:00
Impact of dietary zinc oxide nanoparticles on selected serum biomarkers, lipid peroxidation and tissue gene expression of antioxidant enzymes and cytokines in Japanese quail
The use of zinc oxide in the form of nanoparticles (ZnO-NPs) is of great benefit due to its potent effectiveness and higher bioavailability compared to zinc oxide. This study aimed to investigate the impact of dietary inclusion of different doses of ZnO-NPs on selected serum biomarkers, lipid peroxidation and tissue gene expression of antioxidant enzymes and cytokines in Japanese quail.
4/6/2023 9:11:49 PM +00:00
Morphometric, haematological and physiobiochemical characterization of Bactrian (Camelus bactrianus) camel at high altitude
Biochemical and haematological parameters have not been determined in Bactrian camels kept at high altitude. Therefore, this study was undertaken to characterise different physiological, haematological, biochemical, and morphometric parameters of Bactrian camels of high altitude.
4/6/2023 9:11:39 PM +00:00
Canine infantile left ventricular noncompaction
Left ventricular noncompaction (LVNC) is a rare form of cardiomyopathy currently described in humans and cats. It consists of a spongy myocardium characterized by prominent trabeculation and deep recesses involving more than 50% of the ventricular thickness.
4/6/2023 9:11:29 PM +00:00
Age related differences in phylogenetic diversity, prevalence of Shiga toxins, Intimin, Hemolysin genes and select serogroups of Escherichia. coli from pastured meat goats detected in a longitudinal cohort study
Little is known on the significance, diversity and characteristics of gut E. coli in goats despite their importance as food animals globally. We characterized the temporal dynamics in diversity of E. coli in faecal samples from a cohort of goat kids and adult meat goats on pasture over a one-year period.
4/6/2023 9:11:22 PM +00:00
Assessment of a biofluid mechanics-based model for calculating portal pressure in canines
Portal hypertension is a severe complication caused by various chronic liver diseases. The standard methods for detecting portal hypertension (hepatic venous pressure gradient and free portal pressure) are available in only a few hospitals due to their technical difficulty and invasiveness; thus, non-invasive measuring methods are needed. This study aimed to establish and assess a novel model to calculate free portal pressure based on biofluid mechanics.
4/6/2023 9:11:14 PM +00:00
The gut bacterial diversity of sheep associated with different breeds in Qinghai province
Gut microbiota play important roles in their co-evolution with mammals. However, little is understood about gut bacterial community of Tibetan sheep compared with other sheep breeds. In this study, we investigated the gut bacterial community in 4 different sheep breeds living in the Qinghai-Tibetan Plateau (QTP) of China using high-throughput sequencing (HTS) technique.
4/6/2023 9:11:07 PM +00:00
A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farms
Neonatal diarrhea remains one of the main causes of morbi-mortality in dairy calves under artificial rearing. It is often caused by infectious agents of viral, bacterial, or parasitic origin. Cows vaccination and colostrum intake by calves during the first 6 h of life are critical strategies to prevent severe diarrhea but these are still insufficient.
4/6/2023 9:11:00 PM +00:00
Retrospective evaluation of labetalol as antihypertensive agent in dogs
To evaluate the effect on arterial blood pressure (ABP) of labetalol infusion as treatment for perioperative non nociceptive acute hypertension in dogs. The clinical records of dogs receiving intra or postoperative labetalol infusion were retrospectively reviewed.
4/6/2023 9:10:49 PM +00:00
The correlated expression of immune and energy metabolism related genes in the response to Salmonella enterica serovar Enteritidis inoculation in chicken
Salmonella enterica serovar Enteritidis (SE) is one of the food-borne pathogenic bacteria, which affects poultry production and poses severe threat to human health. The correlation of immune system and metabolism in chicken after SE inoculation is important but not clear.
4/6/2023 9:10:42 PM +00:00
Comparative assessment of left atrial volume in healthy cats by two-dimensional and three-dimensional echocardiography
The left atrium (LA) is an important prognostic parameter in cardiac pathologies of cats. Its size is currently measured in one-dimensional methods, while human medicine considers two- and three-dimensional echocardiography as standard.
4/6/2023 9:10:31 PM +00:00
First investigation of Staphylococcus argenteus in a Brazilian collections of S. aureus isolated from bovine mastitis
Staphylococcus argenteus is a new specie positive coagulase staphylococci. We investigate the presence of S. argenteus in isolates previously classified as S. aureus, obtained from the milk of cows with mastitis in Brazil.
4/6/2023 9:10:24 PM +00:00
Evaluation of nutraceutical properties of Leucaena leucocephala leaf pellets fed to goat kids infected with Haemonchus contortus
Leucaena leucocephala, as a shrub legume rich in condensed tannins, is a candidate for the integrated control of gastrointestinal parasitic pathogen nematodes. Here, we investigated the anthelmintic potential of the nutraceutical L. leucocephala, transformed into pellets, against Haemonchus contortus.
4/6/2023 9:10:17 PM +00:00
Short-term outcomes and complications of 65 cases of porous TTA with flange: A prospective clinical study in dogs
Cranial cruciate ligament rupture (CrCLR) is the most common orthopaedic cause of lameness in the hind limb in dogs. Many surgical treatments have been described, but tibial tuberosity advancement (TTA) is one of the most commonly used today. Since it was first described, TTA has evolved to reduce major complications and to arrest the progression of osteoarthrosis.
4/6/2023 9:10:09 PM +00:00
Bacillus subtilis spore vaccines displaying protective antigen induce functional antibodies and protective potency
Bacillus anthracis is the causative agent of anthrax, a disease of both humans and various animal species, and can be used as a bioterror agent. Effective vaccines are available, but those could benefit from improvements, including increasing the immunity duration, reducing the shot frequency and adverse reactions. In addition, more sophisticated antigen delivery and potentiation systems are urgently required.
4/6/2023 9:10:00 PM +00:00
Molecular epidemiology and genome analysis of feline morbillivirus in household and shelter cats in Thailand
Feline morbillivirus (FeMV) has been discovered in domestic cats associated with tubulointerstitial nephritis, but FeMV is also detected in healthy cats. This research aimed to identify and characterize the FeMV strains detected in a Thai cat population.
4/6/2023 9:09:49 PM +00:00
Dietary fermented soybean meal replacement alleviates diarrhea in weaned piglets challenged with enterotoxigenic Escherichia coli K88 by modulating inflammatory cytokine levels and cecal microbiota composition
Impaired gut microbiota leads to pathogenic bacteria infection, pro-inflammatory response and postweaning diarrhea. Enterotoxigenic Escherichia coli (ETEC) K88 is a major cause of post-weaning diarrhea in weaned piglets. Fermented soybean meal (FSBM) could relieve diarrhea, alleviate inflammatory response, and modulate gut microbiota of weaned piglets.
4/6/2023 9:09:42 PM +00:00
Interstitial changes after reperfused myocardial infarction in swine: Morphometric and genetic analysis
Following myocardial infarction (MI), we aimed to characterize morphometric and genetic changes in extracellular matrix (ECM) components from ischemia onset until late phases after coronary reperfusion in necrotic and salvaged myocardium.
4/6/2023 9:09:28 PM +00:00
Variability, repeatability and test-retest reliability of equine flash visual evoked potentials (FVEPs)
Visual evoked potentials (VEPs) are electrical potentials generated by neurons in the central nervous system in response to visual stimuli. A series of positive and negative wavelets in response to flash-stimuli (flashVEP; FVEP) or reversing, iso-luminant patterns (pattern-VEP; PVEP) are recorded. Pathological conditions affecting the post-retinal pathways can alter overall waveform morphology, and also affect wavelet peak times and amplitudes.
4/6/2023 9:09:20 PM +00:00
The 3D8 single chain variable fragment protein suppresses Newcastle disease virus transmission in transgenic chickens
The 3D8 single chain variable fragment (scFv) is a mini-antibody sequence that exhibits independent nuclease activity against all types of nucleic acids. In this research, crossing a 3D8 scFv G1 transgenic rooster with wild-type hens produced 3D8 scFv G2 transgenic chickens to evaluate suppression of viral transmission.
4/6/2023 9:09:13 PM +00:00
Evaluation of buccal damage associated with acute inhalation exposure to 2,4- dichlorophenoxyacetic acid (2,4-D) in mice
The herbicide dichlorophenoxyacetic acid (2,4-D) is one of the most widely used crop spraying products in the world. Some pesticides induce the degranulation of mast cells and increase allergic responses. This is the first study to evaluate the damage to the oral mucosa after an experimental simulation of environmental inhalation exposure to the 2,4-D herbicide.
4/6/2023 9:09:06 PM +00:00
Occurrence of various pathogenic and opportunistic fungi in skin diseases of domestic animals: A retrospective study
Fungal infections of animals or humans are common all over the world. Some of microorganisms like fungi, exist on the skin and can be transmitted onto other individuals, other animal species or even humans and cause skin infections. Moreover, they can be the causative agents of severe generalized infections especially in immunocompromised individuals.
4/6/2023 9:08:59 PM +00:00