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1.
M. B. Chhabra R. M. Bhardwaj O. P. Gautam R. P. Gupta 《Tropical animal health and production》1981,13(1):222-226
Summary Serological investigation by the indirect haemagglutination test forToxoplasma antibodies was carried out in a flock of dairy goats. Antibody titres ranging from 1:4 to 1:1,024 were found in 34% of 371 apparently healthy animals. High antibody titres of 1:256 suggestive of recent infection were noted in 18 (4.9%) animals including 13 nannies. The occurrence of a number of non-brucella abortions associated with high serological titres and the isolation of the parasite from the brain tissues of an aborted foetus suggestedToxoplasma as a probable aetiologic factor. Sera having significant levels of haemagglutinating antibodies (1:128) were also found positive to the card agglutination test. Epidemiological aspects and the public health potential of subclinical toxoplasmosis in dairy goats are discussed.
Infecciones Y Abortos En Cabras Lecheras Debido AToxoplasma
Resumen Se realizaron investigaciones serológicas de toxoplasmosis mediante la prueba indirecta de hemaglutinación en un rebaño de cabras lecheras. Se encontraron títulos de 1:4 a 1:1024 en 34% de 371 animales aparentemente sanos. Títulos de 1:256 sugestivos de infecciones recientes, se encontraron en 18 (4.9%) animales, incluyendo 13 hembras paridas. La ocurrencia de un significativo número de abortos no asociados con brucela, títulos serológicos altos de toxoplasmosis y el aislamiento del parásito del cerebro de fetos abortados, sugiere que eltoxoplasma es el factor etiológico más importante. Se discuten aspectos epidemiológicos de importantcia para la salud pública, relacionados con el potencial de la toxoplasmosis (subclínica) en cabras lecheras.
Toxoplasmose Et Avortement Chez Les Chevres Latiteres
Résumé Des investigations sérologiques par la méthode de l'agglutination indirecte pour rechercher des anticorps toxoplasmiques ont été faites sur un troupeau de chèvres laitières. Des anticorps ont été mis en évidence chez 34 p.100 des 371 animaux apparemment sains à des titres allant de 1:4 à 1:1024. Des titres élevés d'anticorps atteignant 1:256 ont été relevés chez 18 (soit 4,9 p.100) des animaux comprenant 13 chèvres, ce qui fait penser à une infection récente.L'existence de nombre d'avortements non-brucelliques associés avec des titres sérologiques élevés et l'isolement du parasite des tittus cérébraux d'un foetus avorté suggerent que les Toxoplasmes en ont probablement été le facteur étiologique. Des sérums ayant des taux significativement élevés d'anticorps agglutinants (1:128) ont également été reconnus comme positifs par le test d'agglutination en EAT. Les aspects épidémiologiques et le danger potentiel pour l'homme de ces cas subcliniques de toxoplasmose chez les chèvres laitières sont discutés.相似文献
2.
Identification of internal control genes in milk‐derived mammary epithelial cells during lactation cycle of Indian zebu cow 下载免费PDF全文
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Sandeep K. Sharma MVSc Ambika P. Singh MVSc PhD Rishi Tayal MVSc Inder S. Chandna MVSc PhD 《Veterinary radiology & ultrasound》1984,25(1):17-22
Contrast radiography of the alimentary canal was conducted in six adult sheep with barium sulfate (70% W/V, 25–30 ml/kg). A period of 12 hours was adequate for opacification of most parts of the gastrointestinal tract. The presence of contrast medium in different parts of the alimentary canal was noted for as long as 60 hours. The right lateral view was adequate for visualization of most structures, but the typical laminar mucosal pattern of the omasum and the spiral mucosal folds of the abomasum were demonstrated better on the ventrodorsal view. 相似文献
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Delayed dermal hypersensitivity and leucocyte migrations were measured in buffalo calves experimentally inoculated with Eimeria bareillyi. Dermal hypersensitivity, characterized by increased thickness and local inflammation, was observed in calves inoculated intradermally with E. bareillyi antigen on Days 21 and 28 after infection. The highest inhibition of leucocyte migration was observed in infected buffalo calves on Days 21 and 28 post-infection. 相似文献
7.
Molluscicidal and antimicrobial activity of Solanum aculeastrum 总被引:2,自引:0,他引:2
The methanolic extract of the fresh root bark and berries of Solanum aculeastrum showed significant activity against host snails of schistosomiasis. The berries extract was more potent with 100% snail kill at 50 ppm. Fractionation increased activity with 100% mortality at 20 ppm. The aqueous and methanolic extracts of the berries showed moderate antimicrobial activity, increasing by fractionation. 相似文献
8.
Richa Sood Rekha Khandia Sandeep Bhatia Divakar Hemadri Manoj Kumar Sharan S. Patil Atul K. Pateriya Arshi Siddiqui Malkanna Sanjeev Kumar Mudalagiri Dasappa Venkatesha Diwakar D. Kulkarni 《Tropical animal health and production》2014,46(6):1037-1043
Malignant catarrhal fever (MCF) is a fatal herpesvirus infection of domestic and wild ruminants, with a short and dramatic clinical course characterized primarily by high fever, severe depression, swollen lymph nodes, salivation, diarrhea, dermatitis, neurological disorders, and ocular lesions often leading to blindness. In the present study, fatal clinical cases of sheep associated malignant catarrhal fever (SA-MCF) were identified in cattle in the state of Karnataka. These cases were initially presented with symptoms of diarrhea, respiratory distress, conjunctivitis, and nasal discharges. Laboratory diagnosis confirmed the detection of ovine herpesvirus-2 (OvHV-2) genome in the peripheral blood samples of two ailing animals. The blood samples collected subsequently from sheep of the neighboring areas also showed presence of OvHV-2 genome indicating a nidus of infection in the region. The positive test results were further confirmed by nucleotide sequencing of the OIE approved portion of tegument gene as well as complete ORF8 region of the OvHV-2 genome. Phylogenetic analysis based on the sequence of the latter region indicated close genetic relationship with other OvHV-2 reported elsewhere in the world. 相似文献
9.
M. N. Shrivastava Arvind Kumar Sandeep Bhandarkar B. C. Shukla K. C. Agrawal 《Euphytica》2003,130(1):143-145
The Asian rice gall midge, Orseolia oryzae Wood Mason (Diptera: Cecidomyiidae), is a major pest of rice in several South and South East Asian countries. The maggots
feed internally on the growing tips of the tillers and transform them into tubular galls, onion leaf-like structures called
‘silver shoots’ resulting into severe yield loss to the rice crop. We studied the mode of inheritance and allelic relationships
of the resistance genes involved in resistant donor Line 9, a sib of a susceptible cultivar ‘Madhuri’. The segregation behaviour
of F1, F2 and F3 populations of the cross between Line 9 and susceptible cultivar MW10 confirmed the presence of a single dominant gene for
resistance. Tests of allelism with all the known genes giving resistance to this population indicated that Line 9 possessed
a new gene which was designated Gm 9
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
10.
Sandeep?KumarEmail author Ranjith?P.?Udawatta Stephen?H.?Anderson Ashish?Mudgal 《Agroforestry Systems》2011,83(1):51-62
Buffers have been found to reduce non-point source pollution (NPSP) from watersheds. Hydrologic simulation models assist in
predicting the effects of buffers on runoff and sediment losses from small watersheds. The objective of this study was to
calibrate, validate and simulate runoff and sediment losses and compare buffer effects on NPSP losses relative to control
watersheds (no buffer) for seven years. The experimental design consists of four watersheds under pasture management which
were monitored from 2002 through 2008; two with agroforestry buffers (AgB 100 and AgB 300) and two control watersheds (CW
400 and CW 600). Pasture areas included red clover (Trifolium pretense L.) and lespedeza (Kummerowia stipulacea Maxim.) planted into fescue (Festuca arundinacea Schreb.) while the agroforestry buffer area included Eastern cottonwood trees (Populus deltoids Bortr. ex Marsh.) planted into fescue. The APEX model was calibrated from 2002 to 2005 and was validated from 2006 to 2008.
The r
2
and NSE values for the calibration and validation periods of the runoff varied from 0.52 to 0.78 and 0.50 to 0.74, respectively.
The model did not predict sediment loss very well probably due to insufficient number of measured events and low measured
sediment loss. The measured runoff was 57% higher for CW watersheds compared to AgB watersheds. The measured sediment loss
was 95% higher for CW watersheds compared to AgB watersheds. After calibrating and validating the model, it was run for long-term
scenario analyses for 10 years from 1999 to 2008. Simulated buffer width had a significant influence on runoff. Simulated
runoff decreased by 24% when the buffer width was doubled compared to losses associated with the measured buffer width. Simulated
runoff from the CW watersheds was 11% higher with double stocking density (relative to measured density) compared to AgB watersheds
with double stocking density. With half stocking density (relative to measured density), the AgB watershed had 18% lower runoff
compared to CW. Results from this study imply that establishment of agroforestry buffers on grazed pasture watersheds reduce
runoff and sediment losses compared to control watersheds without buffers. 相似文献