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Veterinary reference text describing the pathology, epidemiology, diagnosis, and immunoprophylaxis of Marek’s disease in poultry based on virological and clinicopathological evidence.
Disease: Marek’s disease
Affected species: Chickens and other gallinaceous birds
Causative agent: Marek’s disease virus (MDV)
Note: Virus family
Virus genus: Mardivirus
Serotypes: Gallid alphaherpesvirus 2, Gallid alphaherpesvirus 3, Meleagrid alphaherpesvirus 1
Transmission: Inhalation of contaminated dust from poultry houses
Clinical forms: Neurological, acute lymphoproliferative, non-neoplastic brain disease
Main clinical signs: Paralysis of legs and wings, peripheral nerve enlargement, visceral tumors
Diagnostic methods: Clinical signs, gross and microscopic lesions, virus isolation, PCR, antigen detection, serology
Differential diagnosis: Avian leukosis, reticuloendotheliosis
Prevention method: Vaccination
Vaccine types: Live attenuated and avirulent strains, monovalent, bivalent, and trivalent vaccines
Vaccination timing: In ovo at 17–19 days of incubation or at hatch
Persistent infection: Yes
Source type: Scientific veterinary reference chapter
Price: 8 / 10 USD
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Dynamic viscoelastic coagulometry of blood obtained from healthy chickens
Year: 2019
Region / City: United States
Topic: Avian medicine, blood coagulation
Document type: Research article
Organization / Institution: American Journal of Veterinary Research
Author: Cassandra I. Rodenbaugh, Sophie Emmanuelle Knafo, Jennifer E. Graham, Bruce A. Barton
Target audience: Veterinary professionals, researchers
Period of action: N/A
Approval date: N/A
Date of changes: N/A
Resolution to Amend Ordinance § 91.090 on Poultry, Chickens, and Rooster Permit Requirements in the Village of Pinckney (2025)
Year: 2025
Country: United States
State: Michigan
County: Livingston County
Municipality: Village of Pinckney
Document Type: Municipal Resolution
Governing Body: Village Council of the Village of Pinckney
Related Body: Village of Pinckney Planning Commission
Subject: Regulation of poultry and rooster permits within village limits
Legal Reference: Ordinance § 91.090 – Poultry; Chickens; Permit Requirements; Restrictions
Purpose: Amendment allowing controlled keeping of one rooster on parcels of one-half acre or more and clarification of housing and permit provisions
Approval Process: Recommendation by Planning Commission and adoption by Village Council vote
Adoption Year: 2025
Effective Date: Fifteen days after adoption and publication according to applicable law
Officials Mentioned: Jeffrey A. Buerman; Justin Bierman; Stacy Conquest; Rob Coppersmith; Keri Hochertz; Nick Kane; Jo Self
Enzyme-Driven Phytate Degradation in Fermented Agro-Waste and Its Effects on Protein Efficiency, Oxidative Stability, and Organ Integrity in Broiler Chickens
Year: Not specified
Country: Nigeria
Region / City: Port Harcourt, Rivers State
Field of Study: Poultry Nutrition and Animal Science
Research Topic: Phytate degradation and nutritional quality of fermented agro-waste feed
Type of Document: Scientific research article
Study Design: Controlled feeding experiment with broiler chickens
Institution: Rivers State University
Ethics Approval: Animal Use Ethics Committee of Rivers State University
Animal Model: Ross 308 broiler chickens
Sample Size: 50 one-day-old chicks
Experimental Duration: Six weeks
Biological Process Studied: Yeast-mediated phytate degradation
Microorganism Used: Saccharomyces cerevisiae
Feed Processing Method: Yeast fermentation of agro-waste ingredients
Key Measurements: Protein Efficiency Ratio (PER), lipid peroxidation (TBARS), catalase activity, superoxide dismutase activity, serum liver enzymes, histopathology
Analyzed Organs: Liver, small intestine, bursa of Fabricius
Feed Ingredients: Plantain peels, maize, fish waste, crayfish chaff, groundnut husk, orange peels, watermelon rind, ginger, garlic, salt
Keywords: Agro-Waste Feed, Broiler Chicken Health, Oxidative Stability, Phytate Degradation, Yeast Fermentation, Protein Efficiency Ratio
Overview of Kashin-Beck Disease: Epidemiology, Etiology, and Review of Scientific Evidence
Disease: Kashin-Beck disease (KBD)
Type of condition: Chronic endemic osteochondropathy
Geographic distribution: Northeastern to southwestern China (15 provinces), Tibet, Southeast Siberia, North Korea
Highest incidence region: Tibet, China
Affected population: Children aged 5–15
Estimated number of affected individuals: Over one million
Main symptoms: Joint pain, morning stiffness, disturbed flexion and extension of elbows, enlarged interphalangeal joints, limited joint motion
Suspected etiological factors: Selenium deficiency, iodine deficiency, mycotoxin-contaminated grain, water pollution with organic material and humic acid
Nature of evidence: Observational studies, case-control studies, cross-sectional studies, ecological studies, animal models, laboratory and pathology studies
Research gaps: Lack of conclusive randomized placebo-controlled trials demonstrating definitive causation
Scientific focus: Multifactorial etiology and need for randomized intervention studies
References cited: Scientific articles published between 1992 and 2021 in peer-reviewed journals
Etiology of rice orange leaf in the Philippines, 1986
Year: 1986
Region / Country: Philippines
Subject: Plant pathology, Rice diseases
Document type: Research article
Institution: International Rice Research Institute (IRRI)
Authors: H. Hibino, G. B. Jonson, F. C. Santa Cruz
Target audience: Plant pathologists, agronomists
Pathogen studied: Mycoplasma-like organisms (MLO)
Methodology: Insect transmission experiments, electron microscopy
Incubation period in plants: 10-28 days
Insect vector: Recilia dorsalis nymphs
Transmission rate: 13% average per insect
Symptom description: Orange leaf, ragged and twisted young leaves, plant death in 3-4 weeks
Retention period in insects: 18-43 days
Source: International Rice Research Newsletter 11(3):15-16
Bacterial Etiology and Antimicrobial Resistance Patterns of Urinary Tract Infections in Sana’a, Yemen
Year: 2023
Theme: Bacterial Etiology, Antimicrobial Resistance, Urinary Tract Infections
Document type: Research article
Institution: Not specified
Author: Not specified
Target audience: Healthcare professionals, researchers, policy makers
Period of validity: N/A
Approval date: Not specified
Date of changes: Not specified
Superior Sulcus Carcinoma (Pancoast Tumor): Definition, Etiology, and Management
Year: 2026
Region / City: Not specified
Subject: Oncology, Pulmonology
Document Type: Medical Overview
Institution / Organization: Not specified
Author: Not specified
Target Audience: Medical professionals
Affected Structures: Brachial plexus, intercostal nerves, sympathetic chain, ribs, vertebrae
Diagnosis: Imaging and investigations similar to bronchogenic carcinoma
Treatment: Surgical resection, radiotherapy
Epidemiology: Less than 5% of all bronchial carcinomas
Histology: Usually non-small-cell lung carcinoma
Topics: Mareks Chickens Etiology