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Lumpy Skin Disease
Lumpy skin disease (LSD) is an infectious disease in cattle caused by a virus of the family ''Poxviridae'', also known as Neethling virus. The disease is characterized by large fever, enlarged superficial lymph nodes and multiple nodules (measuring in diameter) on the skin and mucous membranes (including those of the respiratory and gastrointestinal tracts). Infected cattle also may develop edematous swelling in their limbs and exhibit lameness. The virus has important economic implications since affected animals tend to have permanent damage to their skin, lowering the commercial value of their hide. Additionally, the disease often results in chronic debility, reduced milk production, poor growth, infertility, abortion, and sometimes death. Onset of fever occurs almost one week after infection by the virus. This initial fever may exceed and persist for one week. At this time, all of the superficial lymph nodes become enlarged. The nodules, in which the disease is characterized ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virus
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Since Dmitri Ivanovsky's 1892 article describing a non-bacterial pathogen infecting tobacco plants and the discovery of the tobacco mosaic virus by Martinus Beijerinck in 1898,Dimmock p. 4 more than 9,000 virus species have been described in detail of the millions of types of viruses in the environment. Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity. The study of viruses is known as virology, a subspeciality of microbiology. When infected, a host cell is often forced to rapidly produce thousands of copies of the original virus. When not inside an infected cell or in the process of infecting a cell, viruses exist in the form of independent particles, or ''virions'', consisting of (i) the genetic material, i. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giraffe
The giraffe is a large African hoofed mammal belonging to the genus ''Giraffa''. It is the tallest living terrestrial animal and the largest ruminant on Earth. Traditionally, giraffes were thought to be one species, ''Giraffa camelopardalis'', with nine subspecies. Most recently, researchers proposed dividing them into up to eight extant species due to new research into their mitochondrial and nuclear DNA, as well as morphological measurements. Seven other extinct species of ''Giraffa'' are known from the fossil record. The giraffe's chief distinguishing characteristics are its extremely long neck and legs, its horn-like ossicones, and its spotted coat patterns. It is classified under the family Giraffidae, along with its closest extant relative, the okapi. Its scattered range extends from Chad in the north to South Africa in the south, and from Niger in the west to Somalia in the east. Giraffes usually inhabit savannahs and woodlands. Their food source is leaves, frui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; and to the east and northeast by Mozambique and Eswatini. It also completely enclaves the country Lesotho. It is the southernmost country on the mainland of the Old World, and the second-most populous country located entirely south of the equator, after Tanzania. South Africa is a biodiversity hotspot, with unique biomes, plant and animal life. With over 60 million people, the country is the world's 24th-most populous nation and covers an area of . South Africa has three capital cities, with the executive, judicial and legislative branches of government based in Pretoria, Bloemfontein, and Cape Town respectively. The largest city is Johannesburg. About 80% of the population are Black South Afri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Culicoides
''Culicoides'' is a genus of biting midges in the family Ceratopogonidae. There are over 1000 species in the genus,Connelly, C. RBiting midges: ''Culicoides'' spp.Featured Creatures, Entomology and Nematology Department, University of Florida IFAS. August 2013 Edition. which is divided into many subgenera. Several species are known to be vectors of various diseases and parasites which can affect animals. Like ''Leptoconops'', the genus has a long fossil record, with earliest known fossils being from Burmese amber, around 99 million years old. Notable taxa The systematics and taxonomy of this genus are confused. A large number of species are of unknown relations to those that have been assigned to subgenera already. Furthermore, many subgenera are sometimes elevated to full genus status, or additional genera (such as '' Paradasyhelea'') are included as subgenera herein. A widely cited, periodically updated, subgeneric classification of species of ''Culicoides'' begins with the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossina
Tsetse ( , or ) (sometimes spelled tzetze; also known as tik-tik flies), are large, biting flies that inhabit much of tropical Africa. Tsetse flies include all the species in the genus ''Glossina'', which are placed in their own family, Glossinidae. The tsetse are obligate parasites, which live by feeding on the blood of vertebrate animals. Tsetse have been extensively studied, because of their role in transmitting disease. They have a prominent economic impact in sub-Saharan Africa, as the biological vectors of trypanosomes, causing human and animal trypanosomiasis. Tsetse are multivoltine and long-lived, typically producing about four broods per year, with up to 31 broods over their lifespans. Tsetse can be distinguished from other large flies by two easily-observed features: Primarily, tsetse fold their wings over their abdomens completely when they are resting (so that one wing rests directly on top of the other); Secondly, tsetse also have a long proboscis, extending d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horse-fly
Horse-flies or horseflies are true Fly, flies in the family Tabanidae in the insect Order (biology), order Diptera. They are often large and agile in flight, and only the female horseflies bite animals, including humans, to hematophagy, obtain blood. They prefer to fly in sunlight, avoiding dark and shady areas, and are inactive at night. They are found all over the world except for some islands and the polar regions (Hawaii, Greenland, Iceland). Both horse-flies and Botfly, botflies (Oestridae) are sometimes referred to as gadflies. Adult horse-flies feed on nectar and plant exudates; the males have weak insect mouthparts, mouthparts and only the females bite animals to obtain enough protein from blood to produce eggs. The mouthparts of females are formed into a stout stabbing organ with two pairs of sharp cutting blades, and a spongelike part used to lap up the blood that flows from the wound. The larvae are Predation, predaceous and grow in semiaquatic habitats. Female hor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stomoxys
''Stomoxys'' is a genus of Fly, flies in the family (biology), family Muscidae. The genus is unusual among the Muscidae in that it includes species that are bloodsucking Parasitism, ectoparasites of mammals. The best-known species is ''stable fly, Stomoxys calcitrans'', most commonly known as the stable fly. The genus is small, comprising a dozen or two described species, and current evidence suggests that it is Paraphyly, paraphyletic as well. Species *''Stomoxys bengalensis, S. bengalensis'' Picard, 1908 *''Stomoxys bilineatus, S. bilineatus'' Karl Grünberg, Grünberg, 1906 *''Stomoxys boueti, S. boueti'' Émile Roubaud, Roubaud, 1911 *''Stable fly, S. calcitrans'' (Carl Linnaeus, Linnaeus, 10th edition of Systema Naturae, 1758) *''Stomoxys indicus, S. indicus'' Picard, 1908 *''Stomoxys inornatus, S. inornatus'' Karl Grünberg, Grünberg, 1906 *''Stomoxys luteolus, S. luteolus'' Joseph Th.Villeneuve de Janti, Villeneuve, 1934 *''Stomoxys , S. '' Pierre-Justin-Marie Macquart, M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ectoparasitic Infestation
An ectoparasitic infestation is a parasitic disease caused by organisms that live primarily on the surface of the host. Examples: * Scabies * Crab louse (pubic lice) * Pediculosis (head lice) * ''Lernaeocera branchialis'' (cod worm) See also * Ectoparasiticide An ectoparasiticide is an antiparasitic drug used in the treatment of ectoparasitic infestations. These drugs are used to kill the parasites that live on the body surface. Permethrin, sulfur, lindane, dicophane, benzyl benzoate, ivermectin and crot ... References External links Parasitism Ectoparasites {{Infectious-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afrikaner Cattle
The Afrikaner, also known as the Africander, is a breed of taurine-indicine (" Sanga") cattle indigenous to South Africa. Huge herds of Sanga type cattle were herded by the Khoikhoi (Hottentots) when the Dutch established the Cape Colony in 1652. History Afrikaners share coancestry with the Nguni and Drakensberger breeds. They most likely diverged 655–960 years ago. Anecdotal evidence from Portuguese sailors suggest that herds of Afrikaner-like cattle had been kept by the Khoikhoi since at least the 15th Century. The breed almost became extinct in the early 20th century during the Second Boer War, their numbers depleted through destruction and due to an outbreak of Rinderpest that halved the country's total cattle population. After the war, programs were put in place to improve the breed. In 1912, the first Afrikaner studbook was formed in South Africa in order to control the breed's development. However, due to the recently depleted numbers of Afrikaner cattle, a high deg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bos Indicus
The zebu (; ''Bos indicus'' or ''Bos taurus indicus''), sometimes known in the plural as indicine cattle or humped cattle, is a species or subspecies of domestic cattle originating in the Indian sub-continent. Zebu are characterised by a fatty hump on their shoulders, a large dewlap, and sometimes drooping ears. They are well adapted to withstanding high temperatures, and are farmed throughout the tropical countries, both as pure zebu and as hybrids with taurine cattle, the other main type of domestic cattle. Zebu are used as draught and riding animals, dairy cattle, and beef cattle, as well as for byproducts such as hides and dung for fuel and manure. Some small breeds such as the miniature zebu are also kept as pets. In 1999, researchers at Texas A&M University successfully cloned a zebu. In some regions, such as parts of India, cattle, especially zebu, have significant religious meaning. Taxonomy and name The scientific name ''Bos indicus'' was introduced by Carl Linnaeu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jersey Cattle
The Jersey is a British breed of small dairy cattle from Jersey, in the British Channel Islands. It is one of three Channel Island cattle breeds, the others being the Alderney – now extinct – and the Guernsey. It is highly productive – cows may give over 10 times their own weight in milk per lactation; the milk is high in butterfat and has a characteristic yellowish tinge. The Jersey adapts well to various climates and environments, and unlike many breeds originating in temperate climates, these cows can tolerate heat very well. It has been exported to many countries of the world; in some of them, including Denmark, France, New Zealand, and the United States, it has developed into an independent breed. In Nepal, it is used as a draught animal. History of the breed As its name implies, the Jersey was bred on the British Channel Island of Jersey. It apparently descended from cattle stock brought over from the nearby Norman mainland, and was first recorded as a separ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holstein Friesian Cattle
Holstein Friesians (often shortened to Holsteins in North America, while the term Friesians is often used in the UK and Ireland) are a breed of dairy cattle that originated in the Netherlands, Dutch provinces of North Holland and Friesland, and Schleswig-Holstein in Northern Germany. They are known as the world's highest-producing dairy animals. Dutch people, Dutch and Germans, German breeders developed the breed with the goal of producing animals that could most efficiently use grass, the area's most abundant resource, as their food. Over the centuries, the result was a high-producing, black-and-white Dairy cattle, dairy cow. The Holstein-Friesian is the most widespread cattle breed in the world; it is found in more than 150 countries. With the growth of the New World, a demand for milk developed in North America and South America, and dairy breeders in those regions at first imported their livestock from the Netherlands. However, after about 8,800 Friesians (German Black Pied c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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