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  1 / 1296 MEDLINE  
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[PMID]:29040267
[Au] Autor:Saini RK; Orindi BO; Mbahin N; Andoke JA; Muasa PN; Mbuvi DM; Muya CM; Pickett JA; Borgemeister CW
[Ad] Endereço:International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya.
[Ti] Título:Protecting cows in small holder farms in East Africa from tsetse flies by mimicking the odor profile of a non-host bovid.
[So] Source:PLoS Negl Trop Dis;11(10):e0005977, 2017 Oct.
[Is] ISSN:1935-2735
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: For the first time, differential attraction of pathogen vectors to vertebrate animals is investigated for novel repellents which when applied to preferred host animals turn them into non-hosts thereby providing a new paradigm for innovative vector control. For effectively controlling tsetse flies (Glossina spp.), vectors of African trypanosomosis, causing nagana, repellents more powerful than plant derived, from a non-host animal the waterbuck, Kobus ellipsiprymnus defassa, have recently been identified. Here we investigate these repellents in the field to protect cattle from nagana by making cattle as unattractive as the buck. METHODOLOGY/PRINCIPAL FINDINGS: To dispense the waterbuck repellents comprising guaiacol, geranylacetone, pentanoic acid and δ-octalactone, (patent application) we developed an innovative collar-mounted release system for individual cattle. We tested protecting cattle, under natural tsetse challenge, from tsetse transmitted nagana in a large field trial comprising 1,100 cattle with repellent collars in Kenya for 24 months. The collars provided substantial protection to livestock from trypanosome infection by reducing disease levels >80%. Protected cattle were healthier, showed significantly reduced disease levels, higher packed cell volume and significantly increased weight. Collars >60% reduced trypanocide use, 72.7% increase in ownership of oxen per household and enhanced traction power (protected animals ploughed 66% more land than unprotected). Land under cultivation increased by 73.4%. Increase in traction power of protected animals reduced by 69.1% acres tilled by hand per household per ploughing season. Improved food security and household income from very high acceptance of collars (99%) motivated the farmers to form a registered community based organization promoting collars for integrated tsetse control and their commercialization. CONCLUSION/SIGNIFICANCE: Clear demonstration that repellents from un-preferred hosts prevent contact between host and vector, thereby preventing disease transmission: a new paradigm for vector control. Evidence that deploying water buck repellents converts cattle into non-hosts for tsetse flies-'cows in waterbuck clothing'.
[Mh] Termos MeSH primário: Doenças dos Bovinos/prevenção & controle
Repelentes de Insetos
Insetos Vetores/fisiologia
Odorantes
Tripanossomíase Africana/veterinária
Moscas Tsé-Tsé/fisiologia
[Mh] Termos MeSH secundário: Criação de Animais Domésticos
Animais
Antílopes
Bovinos
Doenças dos Bovinos/epidemiologia
Doenças dos Bovinos/parasitologia
Quênia/epidemiologia
Tripanossomíase Africana/prevenção & controle
Tripanossomíase Africana/transmissão
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Insect Repellents)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171110
[Lr] Data última revisão:
171110
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171018
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pntd.0005977


  2 / 1296 MEDLINE  
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[PMID]:28609902
[Au] Autor:Booyse DG; Dehority BA
[Ad] Endereço:Department of Anatomy and Physiology, University of Pretoria, Private Bag X04, Onderstepoort 0110 South Africa.. dirk.booyse@up.ac.za.
[Ti] Título:Host-Parasite list updating of Ciliates and fermentation in the digestive tract of wild miscellaneous herbivores in South Africa (RSA).
[So] Source:Zootaxa;4258(6):586-600, 2017 05 03.
[Is] ISSN:1175-5334
[Cp] País de publicação:New Zealand
[La] Idioma:eng
[Ab] Resumo:This article is dedicated to the Author, Burk Dehority, who became very ill with cancer. Fortunately he confirmed or corrected all identifications on ciliates in this article. This paper was 80% finished when he became ill. He unfortunately passed away in February 2016.
[Mh] Termos MeSH primário: Antílopes
[Mh] Termos MeSH secundário: Animais
Fermentação
Trato Gastrointestinal
Herbivoria
Masculino
Parasitos
África do Sul
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170809
[Lr] Data última revisão:
170809
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170615
[St] Status:MEDLINE
[do] DOI:10.11646/zootaxa.4258.6.9


  3 / 1296 MEDLINE  
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[PMID]:28578533
[Au] Autor:Volodin IA; Volodina EV; Frey R; Kirilyuk VE; Naidenko SV
[Ad] Endereço:Department of Vertebrate Zoology, Faculty of Biology, Lomonosov Moscow State University, Vorobievy Gory, 12/1, Moscow, Russia, 119234. volodinsvoc@gmail.com.
[Ti] Título:Unusually high-pitched neonate distress calls of the open-habitat Mongolian gazelle (Procapra gutturosa) and their anatomical and hormonal predictors.
[So] Source:Naturwissenschaften;104(5-6):50, 2017 Jun.
[Is] ISSN:1432-1904
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:In neonate ruminants, the acoustic structure of vocalizations may depend on sex, vocal anatomy, hormonal profiles and body mass and on environmental factors. In neonate wild-living Mongolian gazelles Procapra gutturosa, hand-captured during biomedical monitoring in the Daurian steppes at the Russian-Mongolian border, we spectrographically analysed distress calls and measured body mass of 22 individuals (6 males, 16 females). For 20 (5 male, 15 female) of these individuals, serum testosterone levels were also analysed. In addition, we measured relevant dimensions of the vocal apparatus (larynx, vocal folds, vocal tract) in one stillborn male Mongolian gazelle specimen. Neonate distress calls of either sex were high in maximum fundamental frequency (800-900 Hz), but the beginning and minimum fundamental frequencies were significantly lower in males than in females. Body mass was larger in males than in females. The levels of serum testosterone were marginally higher in males. No correlations were found between either body mass or serum testosterone values and any acoustic variable for males and females analysed together or separately. We discuss that the high-frequency calls of neonate Mongolian gazelles are more typical for closed-habitat neonate ruminants, whereas other open-habitat neonate ruminants (goitred gazelle Gazella subgutturosa, saiga antelope Saiga tatarica and reindeer Rangifer tarandus) produce low-frequency (<200 Hz) distress calls. Proximate cause for the high fundamental frequency of distress calls of neonate Mongolian gazelles is their very short, atypical vocal folds (4 mm) compared to the 7-mm vocal folds of neonate goitred gazelles, producing distress calls as low as 120 Hz.
[Mh] Termos MeSH primário: Animais Recém-Nascidos/fisiologia
Antílopes/anatomia & histologia
Antílopes/fisiologia
Vocalização Animal/fisiologia
[Mh] Termos MeSH secundário: Animais
Ecossistema
Feminino
Masculino
Mongólia
Federação Russa
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170801
[Lr] Data última revisão:
170801
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170605
[St] Status:MEDLINE
[do] DOI:10.1007/s00114-017-1471-7


  4 / 1296 MEDLINE  
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[PMID]:28363076
[Au] Autor:Gerlach CA; Kummrow MS; Meyer LC; Zeiler GE; Stegmann GF; Buck RK; Fosgate GT; Kästner SB
[Ti] Título:CONTINUOUS INTRAVENOUS INFUSION ANESTHESIA WITH MEDETOMIDINE, KETAMINE, AND MIDAZOLAM AFTER INDUCTION WITH A COMBINATION OF ETORPHINE, MEDETOMIDINE, AND MIDAZOLAM OR WITH MEDETOMIDINE, KETAMINE, AND BUTORPHANOL IN IMPALA (AEPYCEROS MELAMPUS).
[So] Source:J Zoo Wildl Med;48(1):62-71, 2017 Mar.
[Is] ISSN:1042-7260
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In order to develop a long-term anesthesia for flighty antelope species in field situations, two different protocols for induction and maintenance with an intravenous infusion were evaluated in wild-caught impala ( Aepyceros melampus ). Ten adult female impala were induced with two induction protocols: one consisted of 0.2 mg/kg medetomidine, 4 mg/kg ketamine, and 0.15 mg/kg butorphanol (MKB) and one consisted of 0.375 mg/kg etorphine, 0.2 mg/kg medetomidine, and 0.2 mg/kg midazolam (EMM). In both treatments, anesthesia was maintained with a continuous intravenous infusion (CII) at an initial dose rate of 1.2 µg/kg per hr medetomidine, 2.4 mg/kg per hr ketaminen and 36 µg/kg per hr midazolam. Partial reversal was achieved with naltrexone (2 : 1 mg butorphanol; 20 : 1 mg etorphine) and atipamezole (5 : 1 mg medetomidine). Evaluation of anesthesia included respiratory rate, heart rate, rectal temperature, arterial blood pressure, oxygen saturation, end tidal carbon dioxide tension, and tidal volume at 5-min intervals, palpebral reflex and response to painful stimuli at 15-min intervals, and arterial blood gases at 30-min intervals. Plasma cortisol concentration was determined after induction and before reversal. Duration and quality of induction and recovery were evaluated. EMM caused a faster induction of 9.5 ± 2.9 min compared to 11.0 ± 6.4 min in MKB. Recovery was also quicker in EMM (EMM: 6.3 ± 5.4 min; MKB: 9.8 ± 6.0 min). However, EMM also produced more cardiopulmonary side effects, including hypoxemia and hypercapnia, and calculated oxygenation indices (PaCO -PETCO ) were worse than in MKB. One animal died after induction with EMM. The CII provided surgical anesthesia in 7 of 10 animals in MKB and in 9 of 9 animals in EMM for 120 min. In conclusion, the MKB induction protocol had advantages for prolonged anesthesia in impala with significantly less cardiopulmonary depression compared to EMM. The comparably decreased anesthetic depth could easily be adjusted by an increase of the CII.
[Mh] Termos MeSH primário: Analgésicos/farmacologia
Anestésicos Intravenosos/farmacologia
Antílopes
Hipnóticos e Sedativos/farmacologia
[Mh] Termos MeSH secundário: Analgésicos/administração & dosagem
Período de Recuperação da Anestesia
Anestésicos Intravenosos/administração & dosagem
Animais
Butorfanol/administração & dosagem
Butorfanol/farmacologia
Esquema de Medicação
Quimioterapia Combinada
Etorfina/administração & dosagem
Etorfina/farmacologia
Feminino
Hipnóticos e Sedativos/administração & dosagem
Ketamina/administração & dosagem
Ketamina/farmacologia
Medetomidina/administração & dosagem
Medetomidina/farmacologia
Midazolam/administração & dosagem
Midazolam/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Analgesics); 0 (Anesthetics, Intravenous); 0 (Hypnotics and Sedatives); 42M2Y6NU9O (Etorphine); 690G0D6V8H (Ketamine); MR15E85MQM (Medetomidine); QV897JC36D (Butorphanol); R60L0SM5BC (Midazolam)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170619
[Lr] Data última revisão:
170619
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170401
[St] Status:MEDLINE
[do] DOI:10.1638/2016-0010.1


  5 / 1296 MEDLINE  
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[PMID]:28363066
[Au] Autor:Warren JD; Aitken-Palmer C; Weldon AD; Flanagan JP; Howard LL; Garner MM; Citino SB
[Ti] Título:CONGESTIVE HEART FAILURE ASSOCIATED WITH PREGNANCY IN OKAPI (OKAPIA JOHNSTONI).
[So] Source:J Zoo Wildl Med;48(1):179-188, 2017 Mar.
[Is] ISSN:1042-7260
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Acute signs associated with cardiovascular disease occurred in three pregnant okapi ( Okapia johnstoni ) during early to midgestation and progressed to congestive heart failure. Congestive heart failure was diagnosed antemortem using echocardiography and plasma cardiac troponin levels. Clinical signs included decreased activity, hyporexia, tachypnea, dyspnea, flared nostrils, and productive coughing with copious amounts of foamy nasal discharge. Parenteral and oral treatment with furosemide, enalapril, and spironolactone controlled clinical signs in the three okapi allowing each to carry out one pregnancy to term. Two okapi carried the first pregnancy to term after showing signs, while one okapi aborted the first calf and gave birth to a healthy calf in a subsequent pregnancy. Subsequent pregnancy in one okapi ended with abortion and associated dystocia and endometritis. Following parturition, clinical signs associated with heart failure resolved in all three individuals; serial echocardiography in two individuals showed improvement in fractional shortening and left atrial size and all three okapi showed markedly decreased pleural effusion and resolution of pulmonary edema. However, subsequent pregnancies in all three okapi induced respiratory distress and recurrence of congestive heart failure; one okapi died from congestive heart failure associated with subsequent pregnancy. This case series describes the clinical presentation and pathologic findings of congestive heart failure during pregnancy in adult okapi.
[Mh] Termos MeSH primário: Antílopes
Insuficiência Cardíaca/veterinária
Complicações Cardiovasculares na Gravidez/veterinária
[Mh] Termos MeSH secundário: Animais
Fármacos Cardiovasculares/uso terapêutico
Feminino
Insuficiência Cardíaca/diagnóstico
Insuficiência Cardíaca/tratamento farmacológico
Insuficiência Cardíaca/etiologia
Gravidez
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Cardiovascular Agents)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170619
[Lr] Data última revisão:
170619
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170401
[St] Status:MEDLINE
[do] DOI:10.1638/2016-0090.1


  6 / 1296 MEDLINE  
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[PMID]:28363042
[Au] Autor:Rivas AE; Hausmann JC; Gieche J; Wallace R; Williams C; Bronson E
[Ti] Título:CLINICAL MANAGEMENT OF THIRD PHALANX FRACTURES IN LESSER (TRAGELAPHUS IMBERBIS) AND GREATER KUDU (TRAGELAPHUS STREPSICEROS).
[So] Source:J Zoo Wildl Med;48(1):171-178, 2017 Mar.
[Is] ISSN:1042-7260
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Two greater kudu ( Tragelaphus strepsiceros ) and one lesser kudu ( T. imberbis ) from two zoological institutions presented with overgrown front hooves, and were diagnosed with fractures of the third phalanges in the affected digits. Both greater kudu had milder lamenesses at diagnosis, and were managed conservatively with hoof trims, stall rest, and nonsteroidal anti-inflammatory medications. Ongoing management through regular hoof trims led to improvement and eventual resolution of lameness. The more severely lame lesser kudu received hoof blocks on the front claws not associated with fractured phalanges. This therapy was well tolerated and resulted in resolution of lameness immediately after application. Radiographic evidence of healing was present 8 wk posttherapy. Diagnosis of these fractures was greatly aided by radiographic views obtained at a 45° oblique angle with the claws distracted.
[Mh] Termos MeSH primário: Antílopes
Membro Anterior/patologia
Fraturas Ósseas/veterinária
[Mh] Termos MeSH secundário: Animais
Animais de Zoológico
Feminino
Fraturas Ósseas/terapia
Coxeadura Animal
Masculino
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170619
[Lr] Data última revisão:
170619
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170401
[St] Status:MEDLINE
[do] DOI:10.1638/2016-0126.1


  7 / 1296 MEDLINE  
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[PMID]:28243711
[Au] Autor:Sibiryakova OV; Volodin IA; Frey R; Zuther S; Kisebaev TB; Salemgareev AR; Volodina EV
[Ad] Endereço:Department of Vertebrate Zoology, Faculty of Biology, Lomonosov Moscow State University, Vorobievy Gory, 12/1, 119991, Moscow, Russia.
[Ti] Título:Remarkable vocal identity in wild-living mother and neonate saiga antelopes: a specialization for breeding in huge aggregations?
[So] Source:Naturwissenschaften;104(3-4):11, 2017 Apr.
[Is] ISSN:1432-1904
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Saiga antelopes Saiga tatarica tatarica give birth in large aggregations, and offspring follow the herd soon after birth. Herding is advantageous as anti-predator strategy; however, communication between mothers and neonates is strongly complicated in large aggregations. Individual series of nasal and oral contact calls of mother and neonate saiga antelopes were selected from recordings made with automated recording systems placed near the hiding neonates on the saiga breeding grounds in Northern Kazakhstan during synchronized parturitions of 30,000 calving females. We used for comparison of the acoustic structure of nasal and oral contact calls 168 nasal calls of 18 mothers, 192 oral calls of 21 mothers, 78 nasal calls of 16 neonates, and 197 oral calls of 22 neonates. In the oral calls of either mothers or neonates, formant frequencies were higher and the duration was longer than in the nasal calls, whereas fundamental frequencies did not differ between oral and nasal calls. Discriminant function analysis (DFA) based on six acoustic variables, accurately classified individual identity for 99.4% of oral calls of 18 mothers, for 89.3% of nasal calls of 18 mothers, and for 94.4% of oral calls of 18 neonates. The average value of correct classification to individual was higher in mother oral than in mother nasal calls and in mother oral calls than in neonate oral calls; no significant difference was observed between mother nasal and neonate oral calls. Variables mainly responsible for vocal identity were the fundamental frequency and the second and third formants in either mothers or neonates, and in either nasal or oral calls. The high vocal identity of mothers and neonates suggests a powerful potential for the mutual mother-offspring recognition in dense aggregations of saiga antelopes as an important component of their survival strategy.
[Mh] Termos MeSH primário: Animais Selvagens
Antílopes/fisiologia
Vocalização Animal/fisiologia
[Mh] Termos MeSH secundário: Acústica
Adaptação Biológica
Animais
Animais Recém-Nascidos
Cruzamento
Análise Discriminante
Feminino
Cazaquistão
Densidade Demográfica
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170916
[Lr] Data última revisão:
170916
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170301
[St] Status:MEDLINE
[do] DOI:10.1007/s00114-017-1433-0


  8 / 1296 MEDLINE  
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[PMID]:28155284
[Au] Autor:Ndeereh D; Thaiyah A; Muchemi G; Miyunga AA
[Ad] Endereço:Department of Veterinary Services, Kenya Wildlife Service. dndeereh@kws.go.ke.
[Ti] Título:Molecular surveillance of spotted fever group rickettsioses in wildlife and detection of Rickettsia sibirica in a Topi (Damaliscus lunatus ssp. jimela) in Kenya.
[So] Source:Onderstepoort J Vet Res;84(1):e1-e7, 2017 Jan 30.
[Is] ISSN:2219-0635
[Cp] País de publicação:South Africa
[La] Idioma:eng
[Ab] Resumo:Spotted fever group rickettsioses are a group of tick-borne zoonotic diseases caused by intracellular bacteria of the genus Rickettsia. The diseases are widely reported amongst international travellers returning from most sub-Saharan Africa with fever, yet their importance in local populations largely remains unknown. Although this has started to change and recently there have been increasing reports of the diseases in livestock, ticks and humans in Kenya, they have not been investigated in wildlife. We examined the presence, prevalence and species of Rickettsia present in wildlife in two regions of Kenya with a unique human-wildlife-livestock interface. For this purpose, 79 wild animals in Laikipia County and 73 in Maasai Mara National Reserve were sampled. DNA extracted from blood was tested using the polymerase chain reaction (PCR) to amplify the intergenic spacer rpmE-tRNAfMet and the citrate synthase-encoding gene gltA. Rickettsial DNA was detected in 2 of the 79 (2.5%) animals in Laikipia and 4 of the 73 (5.5%) in Maasai Mara. The PCR-positive amplicons of the gltA gene were sequenced to determine the detected Rickettsia species. This revealed Rickettsia sibirica in a Topi (Damaliscus lunatus ssp. jimela). This is the first report of spotted fever group rickettsioses in wildlife and the first to report R. sibirica in Kenya. The finding demonstrates the potential role of wild animals in the circulation of the diseases.
[Mh] Termos MeSH primário: Animais Selvagens/microbiologia
Antílopes/microbiologia
Infecções por Rickettsia/veterinária
Rickettsia
[Mh] Termos MeSH secundário: Animais
Búfalos/microbiologia
DNA Bacteriano/genética
Equidae/microbiologia
Seres Humanos
Quênia/epidemiologia
Reação em Cadeia da Polimerase/veterinária
Vigilância da População
Prevalência
Rickettsia/genética
Infecções por Rickettsia/epidemiologia
Infecções por Rickettsia/transmissão
Zoonoses/epidemiologia
Zoonoses/microbiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170223
[Lr] Data última revisão:
170223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170204
[St] Status:MEDLINE
[do] DOI:10.4102/ojvr.v84i1.1265


  9 / 1296 MEDLINE  
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[PMID]:28088552
[Au] Autor:Blank D
[Ad] Endereço:Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, the Chinese Academy of Sciences, Urumqi, China; Research Center for Ecology and Environment of Central Asia, Bishkek, Kyrgyzstan. Electronic address: blankdavid958@yahoo.com.
[Ti] Título:Antipredator tactics are largely maternally controlled in goitered gazelle, a hider ungulate.
[So] Source:Behav Processes;136:28-35, 2017 Mar.
[Is] ISSN:1872-8308
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Predation is usually the primary cause of infant death among ungulate species, with the annual variation in the survival of neonates over their first summer a major factor in the population dynamics of many ungulates. Consequently, the maternal rearing strategy of a species is crucial for its reproductive success. Since the roles mothers and fawns play in the implementation of antipredator strategies in hider species have been poorly understood until now, this paper considers this behavior in the goitered gazelle, which is a typical hider species. I found that within the first month after birth goitered gazelle mothers largely controlled the behavior of their fawns both during the active period (determining the timing of separation and reunion with fawns, movement direction and speed, and bed site location) and the hiding period (keeping the hiding fawns under continuous watch from a distance, especially right after birth). With age the fawns' mobility increased and cases of independent behavior of fawns apart from their mothers were found more often, though females continued to control their fawns' behaviors. The main elements of the goitered gazelles' maternal care strategy - generally related to protecting fawns from potential predator attack - are very similar to other hider species in both bovids and cervids, which demonstrates a standard set of maternal care behaviors, irrespective of predator type or its behavioral peculiarities. Such maternal behaviors, however, likely only decrease the predation losses to a certain extent.
[Mh] Termos MeSH primário: Antílopes/psicologia
Comportamento Animal/fisiologia
Comportamento Materno/psicologia
[Mh] Termos MeSH secundário: Animais
Feminino
Dinâmica Populacional
Estações do Ano
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170227
[Lr] Data última revisão:
170227
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170116
[St] Status:MEDLINE


  10 / 1296 MEDLINE  
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[PMID]:28032300
[Au] Autor:Arafa WM; Holman PJ; Craig TM
[Ad] Endereço:Department of Parasitology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62512, Egypt. walid.ahmed@vet.bsu.edu.eg.
[Ti] Título:Genotypic and phenotypic evaluation for benzimidazole resistance or susceptibility in Haemonchus contortus isolates.
[So] Source:Parasitol Res;116(2):797-807, 2017 Feb.
[Is] ISSN:1432-1955
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Haemonchus contortus isolates were evaluated for benzimidazole (BZ) resistance or susceptibility by allele-specific PCR based on ß-tubulin isotype 1 gene polymorphisms at the F167Y, E198A, and F200Y sites. Two isolates, one presumed susceptible from wild pronghorn antelope (PH) and one known to be resistant from goats (VM), were also assayed phenotypically for BZ resistance or susceptibility in the larval development assay (Drenchrite®). The BZ EC50 was 0.198 µM (intermediate between susceptible and weak resistant) for PH with critical well 5 (intermediate between susceptible and weak resistant) and 1.456 µM (intermediate weak resistant and resistant) for VM with critical well 8.5 (resistant). Genotypically, DNA extracted from pooled VM L3 larvae in the Drenchrite® wells with the highest BZ concentration was homozygous susceptible (SS) at the F167Y and E198A sites and homozygous resistant (RR) at the F200Y site by PCR, and sequence analysis bore this out. PH L3 larvae DNA from a control well (no BZ) was SS at all three sites by PCR, confirmed by sequence analysis. All single adult worm samples (N = 21) from PH, VM, Egypt goat (EG), and a Texas llama were SS at F167Y and E198A by PCR; however, only 3 PH worms and 1 EG worm were SS at F200Y. Three additional PH worms were RS and upon cloning two clones were identified as resistant by sequencing and two as susceptible. Clones from single adult worms VM, llama, and EG samples that were RR by PCR at F200Y were sequence verified as resistant. In this study, F200Y was the most frequently found genotypic marker for BZ resistance or susceptibility in the different Haemonchus isolates.
[Mh] Termos MeSH primário: Anti-Helmínticos/farmacologia
Benzimidazóis/farmacologia
Resistência a Medicamentos/genética
Doenças das Cabras/parasitologia
Hemoncose/veterinária
Polimorfismo Genético/genética
[Mh] Termos MeSH secundário: Animais
Antílopes
Sequência de Bases
Camelídeos Americanos
DNA de Helmintos/química
DNA de Helmintos/genética
Egito/epidemiologia
Frequência do Gene
Genótipo
Doenças das Cabras/epidemiologia
Cabras
Hemoncose/epidemiologia
Hemoncose/parasitologia
Haemonchus/efeitos dos fármacos
Haemonchus/genética
Larva
Análise de Sequência de DNA/veterinária
Tubulina (Proteína)/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anthelmintics); 0 (Benzimidazoles); 0 (DNA, Helminth); 0 (Tubulin); E24GX49LD8 (benzimidazole)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:171007
[Lr] Data última revisão:
171007
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161230
[St] Status:MEDLINE
[do] DOI:10.1007/s00436-016-5357-y



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