Fowl typhoid is a septicemic acute or chronic disease of domesticated birds.
The disease is worldwide distributed and natural outbreaks occur in chickens, turkeys, guinea fowl, peafowl, duckling and game birds such as quail, grouse and pheasant.
This can cause mortality in birds of any age.
Broiler parents and brown-shell egg layers are especially susceptible.
Fowl typhoid is a septicemic acute or chronic disease of domesticated birds.
The disease is worldwide distributed and natural outbreaks occur in chickens, turkeys, guinea fowl, peafowl, duckling and game birds such as quail, grouse and pheasant.
This can cause mortality in birds of any age.
Broiler parents and brown-shell egg layers are especially susceptible.
local names, definition, etiology,epidemiology lifecycle, pathogenesis, clinical findings, necropsy finding, diagnosis,treatment, control and prevention
Taenia multiceps multiceps is an intestinal parasite of canids (especially dogs, foxes, and jackals) and occasionally people. Its intermediate hosts include sheep, goats, deer, antelope, chamois, rabbits, hares, horses, and less commonly cattle, which acquire this tapeworm's eggs while grazing. After ingestion, some oncospheres hatch and reach the brain, developing by endogenous budding into a metacestode (larval) stage known as Coenurus cerebralis. Initial invasion and development of the oncospheres may be responsible for acute suppurative meningoencephalitis.
La coccidiosis aviar es una enfermedad intestinal de importancia veterinaria causada por el protozoario de phylum Apicomplexa, Eimeria sp., dicha enfermedad es importante debido a su gran impacto económico en las granjas de producción de pollo de engorda y gallina ponedora.
local names, definition, etiology,epidemiology lifecycle, pathogenesis, clinical findings, necropsy finding, diagnosis,treatment, control and prevention
Taenia multiceps multiceps is an intestinal parasite of canids (especially dogs, foxes, and jackals) and occasionally people. Its intermediate hosts include sheep, goats, deer, antelope, chamois, rabbits, hares, horses, and less commonly cattle, which acquire this tapeworm's eggs while grazing. After ingestion, some oncospheres hatch and reach the brain, developing by endogenous budding into a metacestode (larval) stage known as Coenurus cerebralis. Initial invasion and development of the oncospheres may be responsible for acute suppurative meningoencephalitis.
La coccidiosis aviar es una enfermedad intestinal de importancia veterinaria causada por el protozoario de phylum Apicomplexa, Eimeria sp., dicha enfermedad es importante debido a su gran impacto económico en las granjas de producción de pollo de engorda y gallina ponedora.
Coccidiosis in Chickens, Photos, PicturesField Vet
http://fieldcasestudy.com
Coccidia is a microscopic parasitic organism that infects poultry when ingested by the chicken. The parasites found in the ground or bird faeces attaches itself to the lining in the gut, multiplies and becomes an oocyst feeding in the digestive tract which will make it bleed. Once infected it passes the parasites in its poop days before symptoms occur. Coccidiosis is caused by protozoa of the phylum Apicomplexa, family Eimeriidae. In poultry, most species belong to the genus Eimeria and infect various sites in the intestine.
Neoplasia
Overview
Characteristics of neoplasms compared to normal tissues
Types of neoplasms
Benign vs malignant
Cellular differentiation
Genetic basis for neoplasia
What is a “neoplasm”?
Lay term of “tumor” conveys usual connotations – ie a new growth or mass
Definition revolves around these features:
Monoclonal proliferation of cells with specific mutations
Excessive and unregulated growth of these cells, often at the expense of surrounding normal tissue
Terms to know about when discussing neoplasia
Metastasis - spread of a malignant tumor from one site to another via blood or lymph
Benign – typically refers to those tumors incapable of metastasis and having a good clinical outcome (prognosis)
Malignant – those tumors capable of invasive growth and/or metastasis, often fatal if not treated effectively
Parenchyma – these are the tumor cells themselves, usually referring to epithelial cells in organs.
Stroma – connective tissue cells that support the parenchymal cells – not actually tumor cells, but are stimulated to grow by the tumor via growth factors, eg angiogenesis
Cellular differentiation
Tumors are often “graded” as to how closely they resemble the normal parent tissue that they are derived from.
Well-differentiated means the cells are very similar in appearance and architectural arrangement to normal tissue of that organ
Differentiation
“Poorly-differentiated” refers to tumors that show only minimal resemblance to the normal parent tissue they are derived from.
“Anaplastic” means the tumor shows no obvious similarity to it’s parent tissue, usually associated with aggressive behavior
So what??????
Differentiation often provides clues as to the clinical aggressiveness of the tumor
Tumors often lose differentiation features over time as they become more “malignant” and as they acquire more cumulative genetic mutations
Differentiation often predicts responsiveness to certain therapies, eg estrogen receptors and Tamoxifen in breast cancers
Benign
– circumscribed, often encapsulated, pushes normal tissue aside
Malignant
– infiltrative growth, no capsule, destructive of normal tissues
Classification of neoplasms
Epithelial tumors
Benign forms – adenoma , papilloma
Malignant forms – carcinoma, eg adenocarcinoma, squamous cell carcinoma
Mesenchymal tumors
Benign forms – fibroma, leiomyoma,
Malignant forms – sarcoma, eg fibrosarcoma, leiomyosarcoma
Classification continued
Tumors of lymphocytes are always malignant – called lymphoma
Tumors of melanocytes
Benign – nevus
Malignant - melanoma
Precursors of neoplasia
Hyperplasia
Metaplasia
Chronic inflammation
dysplasia
Metaplasia, dysplasia, neoplasia
Ultrastructural Study of two Parasites Infecting Domesticated Turkey Meleagri...IOSRJPBS
This work provides a detailed systematic morphology by optic and Scanning electron microscopy of two parasites Raillietina echinobothriida Megnin, 1880 and Spirora meleagaris n. sp. infecting domesticated turkey. The present study includes some important characters that not recorded in previous description. SEM revealed that the tegument of the first cestode exhibits, filamentous, microtriches and sensory papillae densely covered the tegument of entire body, rostellum armed with two rows of hummer-shaped hooks and provide by 16 – 20 rows of small, rose thorn-shaped accessory spines. In addition, the present studies have observed a number of taxonomic features in Spirora meleagaris n. sp. that differ from those mentioned in the same genus, mouth circular, bounded by a cuticular three circles plates, five pairs of cephalic papillae, an inner circle of two pairs situated on the wall of the buccal cavity, one pair of larges submedian amphids, and an outer circle of two pairs papillae. Buccal cavity supported by four chitinious cusped molar teeth anteriorly directed .Vulva near the end of the first third of the body, vulvular lips prominent. The male has unique rose like shaped pedunculated and unarranged numerous distributed sessile cervical papillae at the second third of the body that are distinguishable from other spirorid.
Nasal Myiasis in animals due to Oestridae - A Mini ReviewAI Publications
Oestrus ovis, the sheep ‘nasal bot fly’, somewhat looks like a honey bee, has a rudimentary mouth parts and do not feed. The larva of the sheep nasal fly is responsible for causing a condition in sheep and goat called nasal myiasis, oestriosis or ‘false gid’. The disease occurs when adult fly deposit first larvae (L1) into the nostrils of its host. The larvae develop into L2 and L3 in the nasal cavities and sinuses in due course. Sneezing and nasal discharges are the major clinical signs seen in infected animals. The pathogenic reaction occurs when the larvae irritate the mucosa with their spines and hooks during their development and also due to an allergic reaction induced by molecules excreted/secreted by the larvae. Sometimes damage of the skulls of the bones and injury to the brain occur to such an extent that signs of high-stepping gait and in-coordination suggesting the animal suffers from Coenurus cerebralis infection and hence the infection is also called false gid. Keeping in view the importance of the fly, the morphology, biology, pathogenesis, immunological reaction and various control measures of Oestrus ovis are discussed in this review.
There are four main types of disease affecting poultry: metabolic and nutritional diseases; infectious diseases; parasitic diseases; and behavioural diseases.
Metabolic and nutritional diseases
These are conditions caused by a disturbance of normal metabolic functions either through a genetic defect, inadequate or inappropriate nutrition or impaired nutrient utilisation. These include Fatty Liver Syndrome, Perosis (or slipped tendon), Rickets and Cage Layer Fatigue.
Infectious diseases
An infectious disease is any disease caused by invasion of a host by a pathogen which subsequently grows and multiplies in the body. Infectious diseases are often contagious, which means they can be spread directly or indirectly from one living thing to another. These include Avian Encephalomyelitis, Avian Influenza, Avian Tuberculosis, Chicken Anaemia Virus Infection (or CAV), Chlamydiosis, Egg Drop Syndrome (or EDS), Fowl Cholera (or Pasteurellosis), Fowl Pox, Infectious Bronchitis, Infectious Bursal Disease (or Gumboro), Infectious Coryza, Infectious Laryngotracheitis, Lymphoid Leukosis, Marek’s Disease, Mycoplasmosis, Necrotic Enteritis, Newcastle Disease and Salmonellosis.
Parasitic diseases
Parasitic diseases are infections or infestations with parasitic organisms. They are often contracted through contact with an intermediate vector, but may occur as the result of direct exposure. A parasite is an organism that lives in or on, and takes its nourishment from, another organism. A parasite cannot live independently. These include Coccidiosis, Cryptosporidiosis, Histomoniasis, Lice and Mites, Parasitic Worms (or Helminths), Toxoplasmosis and Trichomoniasis.
Behavioural diseases
Abnormal behavioural patterns can lead to injury or ill health of the abnormally behaving bird and/or its companions. These include Cannibalism (or aggressive pecking).
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
2.
Eimeria belongs to the order Eucoccidiosis is
the parasites of various vertebrates &
invertebrates.
They are intracellular parasites of epithelial
lining of host’s alinmentary canal.
Among several species of Eimeria E.tenella is
discussed here as representative speciese which
causes severe damage to poultry.
Causative Agent: Eimeria tenella
5.
(1) (2) (3)
Fig: Different morphological stages of E. tenella
Fig.1: Oocyst Fig.2: Sporozoite Fig.3: Merozoites
Morphology of E. tenella
6.
Life Cycle
Life Cycle
Asexual Sexual
1st gen 2nd gen Gametogony
Schizogony Schizogony
Infection by sporocytes Trophozoit Fertilization
Sporozoite Schizont Oocyst
Trophozoite (invasion of Merozoites sporogony
new host cell)
Schizont Transference of oocyte
Merozoites Liberation of sporozoites
7.
E. Tenella Causes coccidiosis to chicken.
Symptoms of the disease include-
Bloody droppings, pale face & shanks.
Bloody vent & enlarged caeca distended with
blood or yellowish-grey cheese-like ceres.
In advanced stages the infected birds show
restlessness, drooping wings, shuffled feathers
& unsteady gait.
Pathogenesis
8.
Inflamatory cells influxes into the submucosa.
Thickened mucosal & submucosal layer with
slightly congestion of blood vessels.
Necrotized epithelial cells denuded from the
mucosal layer.
Several hemorrhage in the lamina propia.
Histopathological
Effects
9.
Infection of chickens may be prevented through-
Proper hygienic conditions.
Floors of the poultry houses and yards must
be cleaned regularly.
All equipments used for the purpose of birds
rearing should also be cleaned.
Hot Lye solution can be used for cleaning.
Prevention
