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Author |
Mejdell, C.M.; Simensen, E.; Boe, K.E. |
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Title |
Is snow a sufficient source of water for horses kept outdoors in winter? A case report |
Type |
Journal Article |
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Year |
2005 |
Publication |
Acta Veterinaria Scandinavica |
Abbreviated Journal  |
Acta Vet Scand |
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Volume |
46 |
Issue |
1-2 |
Pages |
19-22 |
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Keywords |
Animals; *Drinking Behavior; *Horses; Norway; Osmolar Concentration; Snow; *Thirst; *Water Supply |
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Abstract |
Due to extreme weather conditions, a flock of outwintered Icelandic horses had to manage for several days on snow as the source of free water. They were fed grass silage ad lib, and any change in feed consumption was not observed. After nine days, blood samples were taken and analysed for plasma osmolality, they were subjected to a simple clinical examination, and offered drinking water. Osmolality levels were within normal limits and mean value did not differ significantly from samples which previously were taken of the same individuals. The general condition of the horses was normal, with no signs of clinical dehydration or disease. The horses showed very little interest for the offered drinking water. This suggests that in cold winter weather, horses being fed grass silage and adjusted to eat snow, can manage for several days with snow substituting liquid water without their physiology and welfare being challenged. |
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National Centre for Veterinary Contract Research and Commercial Services, Ltd |
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0044-605X |
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PMID:16108209 |
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no |
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Call Number |
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Serial |
1886 |
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Author |
Nelson, G.S. |
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Title |
Onchocerciasis |
Type |
Journal Article |
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Year |
1970 |
Publication |
Advances in Parasitology |
Abbreviated Journal |
Adv Parasitol |
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Volume |
8 |
Issue |
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Pages |
173-224 |
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Keywords |
Africa; Animals; Anthelmintics/therapeutic use; Artiodactyla; Blindness/etiology; Cattle; Circadian Rhythm; Ddt; Diethylcarbamazine/therapeutic use; Diptera/anatomy & histology/growth & development; Dwarfism/etiology; Ecology; Eye/pathology; Feeding Behavior; Female; Geography; Haplorhini; Hernia, Femoral/etiology; Horses; Humans; Insect Vectors/growth & development; Larva/growth & development; Male; Onchocerca/classification/growth & development; *Onchocerciasis/diagnosis/drug therapy/epidemiology/immunology/pathology/prevention & control/veterinary; Primates; Serologic Tests; Skin/pathology; Skin Tests; Suramin/therapeutic use |
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0065-308X |
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PMID:4997515 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2738 |
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Author |
Boray, J.C. |
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Title |
Experimental fascioliasis in Australia |
Type |
Journal Article |
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Year |
1969 |
Publication |
Advances in Parasitology |
Abbreviated Journal |
Adv Parasitol |
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Volume |
7 |
Issue |
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Pages |
95-210 |
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Keywords |
Adaptation, Biological; Adaptation, Physiological; Animal Nutrition Physiology; Animals; Animals, Laboratory; Australia; Cattle; *Cattle Diseases/pathology; Climate; *Disease Vectors; Ecology; Electron Transport; Estivation; Fasciola hepatica/enzymology/*growth & development/metabolism/physiology; Fascioliasis/epidemiology/immunology/*prevention & control/veterinary; Glycolysis; Guinea Pigs; Horses; Humans; Larva/growth & development/physiology; Marsupialia; Metamorphosis, Biological; Mice; New Guinea; New Zealand; Parasite Egg Count; Rats; Seasons; Sheep; *Sheep Diseases/pathology |
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0065-308X |
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Notes |
PMID:4935272 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2744 |
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Author |
Komar, N. |
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Title |
West Nile virus: epidemiology and ecology in North America |
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Journal Article |
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Year |
2003 |
Publication |
Advances in Virus Research |
Abbreviated Journal |
Adv Virus Res |
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Volume |
61 |
Issue |
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Pages |
185-234 |
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Keywords |
Animals; Bird Diseases/virology; Birds/virology; Culex/virology; Disease Reservoirs; Ecosystem; Epidemiology, Molecular; Horse Diseases/virology; Horses/virology; Humans; Insect Vectors; North America/epidemiology; Risk Factors; West Nile Fever/*epidemiology/transmission/veterinary; West Nile virus/genetics |
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Address |
Centers for Disease Control and Prevention, Division of Vector-Borne Infectious Diseases, Fort Collins, Colorado 80522, USA |
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0065-3527 |
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Notes |
PMID:14714433 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2638 |
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Author |
Scherer, W.F.; Madalengoitia, J.; Flores, W.; Acosta, M. |
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Title |
Ecologic studies of Venezuelan encephalitis virus in Peru during 1970-1971 |
Type |
Journal Article |
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Year |
1975 |
Publication |
American Journal of Epidemiology |
Abbreviated Journal |
Am J Epidemiol |
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Volume |
101 |
Issue |
4 |
Pages |
347-355 |
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Keywords |
Animals; Antibodies, Viral; Cricetinae/immunology; Culicidae/microbiology; *Disease Vectors; Ecology; *Encephalitis Virus, Venezuelan Equine/immunology/isolation & purification; Encephalomyelitis, Equine/immunology/microbiology/transmission; Female; Hemagglutination Inhibition Tests; Horses/immunology; Humans; Neutralization Tests; Peru |
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Abstract |
Venezuelan encephalitis (VE) virus has intermittently produced epidemics and equine epizootics on the dry Pacific coastal plain of Peru since at least the 1930's. However, evidence that the virus exists in the Amazon region of Peru to the east of the Andes mountains was not obtained until antibodies were found in human sera collected in 1965, and 10 strains of the virus were isolated in a forest near the city of Iquitos, Peru during February and March 1971. Eight strains came from mosquitoes and two from dead sentinel hamsters. Three hamsters exposed in forests near Iquitos developed VE virus antibodies suggesting that hamster-benign strains also exist there. Antibody tests of equine sera revealed no evidence that VE virus was actively cycling during the late 1950's or 1960's in southern coastal Peru, where equine epizootics had occurred in the 1930's and 1940's. In northern coastal Peru bordering Ecuador, antibodies were present in equine sera, presumably residual from the 1969 outbreak caused by subtype I virus, since neutralizing antibody titers were higher to subtype I virus than to subtypes III or IV. No VE virus was detected in this northern region during the dry season of 1970 by use of sentinel hamsters. The possibility is considered that VE epidemics and equine epizootics on the Pacific coast of Peru are caused by movements of virus in infected vertebrates traversing Andean passes or in infected vertebrates or mosquitoes carried in airplanes from the Amazon region. |
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English |
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ISSN |
0002-9262 |
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Notes |
PMID:235838 |
Approved |
no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2705 |
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Author |
Sudia, W.D.; Fernandez, L.; Newhouse, V.F.; Sanz, R.; Calisher, C.H. |
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Title |
Arbovirus vector ecology studies in Mexico during the 1972 Venezuelan equine encephalitis outbreak |
Type |
Journal Article |
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Year |
1975 |
Publication |
American Journal of Epidemiology |
Abbreviated Journal |
Am J Epidemiol |
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Volume |
101 |
Issue |
1 |
Pages |
51-58 |
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Keywords |
Animals; Arboviruses/isolation & purification; Culicidae/microbiology; Disease Vectors/*microbiology; Ecology; Encephalitis Virus, St. Louis/isolation & purification; Encephalitis Virus, Venezuelan Equine/*isolation & purification; Encephalitis Virus, Western Equine/isolation & purification; Encephalomyelitis, Equine/epidemiology/*transmission/veterinary; Horse Diseases/epidemiology/*transmission; Horses; Insect Vectors/microbiology; Mexico |
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Abstract |
Virus vector studies were conducted in the States of Durango, Chihuahua, and Tamaulipas, Mexico, in June and July 1972. Apparently only a low level of Venzuelan equine encephalitis (VEE) virus transmission to equines occured at the time of the study, and the infection was restricted to areas which had not experienced overt activity during the preceding year. The low level of infection was associated with a scarcity of mosquitoes. The IB (epidemic) strain of VEE virus was isolated from two pools of Anopheles pseudopunctipennis (Theo.) and the blood of one symptomatic equine. The low mosquito population, the relatively few equine cases observed, and the absence of reports of VEE human disease from the outbreak area suggested VEE virus persistence through a low-level mosquito-equine transmission cycle. Other studies have already indicated that wild vertebrates play no more than a minor role in outbreaks of epidemic VEE. Mosquito collections made in areas of the states of Durango, Chihuahua, and Tamaulipas, where considerable epidemic activity of VEE had occurred in 1971, failed to reveal evidence of VEE virus persistence. Twenty-nine ioslations of other arboviruses were also made in these studies: including 22 of St. Louis encephalitis virus (SLE), 2 of Flanders virus, 1 of Turlock virus, 1 of Trivittatus virus of the California Group, 1 of western equine encephalitis virus (VEE), and 2 (from Santa Rose) which possibly represent a hitherto unknown virus in the Bunyamwera Group. These are the first reports of SLE virus isolations from mosquitoes in Mexico, and the first demonstration of Trivittatus, VEE Turlock and Flanders viruses in Mexico from any source. |
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0002-9262 |
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Notes |
PMID:235213 |
Approved |
no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2706 |
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Author |
Menges, R.W.; Furcolow, M.L.; Selby, L.A.; Habermann, R.T.; Smith, C.D. |
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Title |
Ecologic studies of histoplasmosis |
Type |
Journal Article |
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Year |
1967 |
Publication |
American Journal of Epidemiology |
Abbreviated Journal |
Am J Epidemiol |
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Volume |
85 |
Issue |
1 |
Pages |
108-119 |
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Keywords |
Adolescent; Adult; Animals; Antibodies/*analysis; Carnivora; Cats; Cattle; Child; Child, Preschool; Dogs; Ecology; Female; Fluorescent Antibody Technique; Histoplasma/isolation & purification; Histoplasmin; Histoplasmosis/*epidemiology/*immunology; Horses; Humans; Infant; Infant, Newborn; Kansas; Male; Marsupialia; Mice; Middle Aged; Missouri; Rabbits; Skin Tests; *Soil Microbiology; Swine |
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0002-9262 |
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Notes |
PMID:5334640 |
Approved |
no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2747 |
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Author |
Williams, D.O.; Boatwright, R.B.; Rugh, K.S.; Garner, H.E.; Griggs, D.M.J. |
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Title |
Myocardial blood flow, metabolism, and function with repeated brief coronary occlusions in conscious ponies |
Type |
Journal Article |
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Year |
1991 |
Publication |
The American journal of physiology |
Abbreviated Journal |
Am J Physiol |
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Volume |
260 |
Issue |
1 Pt 2 |
Pages |
H100-9 |
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Keywords |
Animals; Consciousness/*physiology; Coronary Circulation/*physiology; Coronary Disease/pathology/*physiopathology; Disease Models, Animal; Hemodynamic Processes/physiology; Horses/*physiology; Hydrogen/metabolism; Lactates/metabolism; Myocardium/*metabolism/pathology; Norepinephrine/metabolism; Potassium/metabolism; Regional Blood Flow |
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Abstract |
Studies were performed in the conscious pony instrumented with a Doppler flow probe and hydraulic occluder on the left anterior descending coronary artery (LAD), sonomicrometry crystals and intraventricular micromanometer in the left ventricle, and catheters in the left atrium and anterior interventricular vein. Two-minute LAD occlusions were performed every 30 min continuously or during working hours. Data on release of catabolites (potassium, hydrogen ions, and lactate) and norepinephrine from the initially dysfunctional region were obtained periodically during a regimen of 445 +/- 56 occlusions in six animals. Regional myocardial blood flow was measured (microsphere method) before and after an occlusion regimen in four animals. Marked release of catabolites and norepinephrine from the initially dysfunctional region was noted in association with early occlusions when myocardial segment function was severely reduced. With further occlusions, release of these substances decreased while segment function improved. Blood flow was markedly decreased in the initially dysfunctional region during an early occlusion but was at the control level during a later occlusion. Although the metabolic findings are consistent with protection due to “ischemic preconditioning” and no increase in collateral perfusion, the inverse relationship noted between catabolite release and segment function is best explained by flow-dependent mechanisms. These results, together with the myocardial blood flow data, serve to validate a previous assumption that protection against regional myocardial dysfunction under these conditions is due to increased collateral perfusion. |
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Address |
Department of Physiology, University of Missouri, Columbia 65212 |
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English |
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Abbreviated Series Title |
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0002-9513 |
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Notes |
PMID:1992786 |
Approved |
no |
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Call Number |
refbase @ user @ |
Serial |
98 |
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Author |
Fulhorst, C.F.; Hardy, J.L.; Eldridge, B.F.; Chiles, R.E.; Reeves, W.C. |
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Title |
Ecology of Jamestown Canyon virus (Bunyaviridae: California serogroup) in coastal California |
Type |
Journal Article |
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Year |
1996 |
Publication |
The American Journal of Tropical Medicine and Hygiene |
Abbreviated Journal |
Am J Trop Med Hyg |
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Volume |
55 |
Issue |
2 |
Pages |
185-189 |
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Keywords |
Aedes/virology; Animals; Antibodies, Viral/blood; California/epidemiology; Cattle; Cattle Diseases/epidemiology; Deer; Dog Diseases/epidemiology; Dogs; Encephalitis Virus, California/immunology/*isolation & purification; Encephalitis, California/epidemiology/*veterinary; Female; Horse Diseases/epidemiology; Horses; Insect Vectors/virology; Lagomorpha; Male; Neutralization Tests/veterinary; Peromyscus; Rodent Diseases/epidemiology; Sigmodontinae |
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Abstract |
This paper reports the first isolation of Jamestown Canyon (JC) virus from coastal California and the results of tests for antibody to JC virus in mammals living in coastal California. The virus isolation was made from a pool of 50 Aedes dorsalis females collected as adults from Morro Bay, San Luis Obispo County, California. The virus isolate was identified by two-way plaque reduction-serum dilution neutralization tests done in Vero cell cultures. Sera from the mammals were tested for antibody to JC virus by a plaque-reduction serum dilution neutralization method. A high prevalence of JC virus-specific antibody was found in horses and cattle sampled from Morro Bay. This finding is additional evidence for the presence of a virus antigenically identical or closely related to JC virus in Morro Bay and indicates that the vectors of the virus in Morro Bay feed on large mammals. A high prevalence of virus-specific antibody was also found in horses sampled from Marin and San Diego counties. This finding suggests that viruses antigenically identical or closely related to JC virus are geographically widespread in coastal California. |
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Address |
School of Public Health, University of California, Berkeley, USA |
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English |
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ISSN |
0002-9637 |
ISBN |
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Notes |
PMID:8780458 |
Approved |
no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2656 |
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Author |
McHugh, C.P. |
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Title |
Ecology of a semi-isolated population of adult Anopheles freeborni: abundance, trophic status, parity, survivorship, gonotrophic cycle length, and host selection |
Type |
Journal Article |
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Year |
1989 |
Publication |
The American Journal of Tropical Medicine and Hygiene |
Abbreviated Journal |
Am J Trop Med Hyg |
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Volume |
41 |
Issue |
2 |
Pages |
169-176 |
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Keywords |
Aging/physiology; Animals; Anopheles/*physiology; Breeding; California; Cattle/parasitology; Dogs/parasitology; Ecology; Feeding Behavior/physiology; Female; Horses/parasitology; Host-Parasite Relations; Male; Parity; Population Density; Rabbits/parasitology |
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Abstract |
A population of adult Anopheles freeborni near Sheridan, CA was sampled daily during 13 August-7 September 1984. Data on abundance, trophic status, and gonotrophic age were recorded. Abundance and gonotrophic age data were analyzed to estimate daily survivorship and gonotrophic cycle length. Daily survivorship for unfed mosquitoes was estimated to be 0.72 with a gonotrophic cycle of 6 days duration. Daily survivorship for bloodfed mosquitoes was estimated to be 0.74 with a gonotrophic cycle of 4 days. The 2 day difference in gonotrophic cycles between unfed and bloodfed mosquitoes was the result of the period required for maturation and mating of teneral females. In 1986, an incage release of field-collected females estimated survivorship at 0.75 per day. Precipitin tests of 1,338 blood-engorged mosquito abdomens indicated that bovids, horses, rabbits, and canids comprised 92% of bloodmeals; no bloodmeals of human origin were detected. |
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Address |
Department of Entomology, University of California, Davis |
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English |
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Abbreviated Series Title |
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ISSN |
0002-9637 |
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Notes |
PMID:2774063 |
Approved |
no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2673 |
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| Permanent link to this record |
