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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 223 (1969), S. 712-715 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Weather, especially wind and rain, probably plays a more important part in the spread of foot and mouth disease than has been recognized to ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Veterinary research communications 13 (1989), S. 349-358 
    ISSN: 1573-7446
    Keywords: anaplasmosis ; cattle ; control ; costs ; Louisiana
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Losses from morbidity and mortality due to anaplasmosis were assessed in beef and dairy cattle of the Red River Plains and south-east areas of Louisiana. The cost of treatment and prevention of anaplasmosis and losses in milk production and those due to deaths or culling were valued at $0.5 million for the year 1983 in these two areas. The cost of prevention included the use of tetracyclines in feed and salt-mineral supplements, injectable tetracycline, vaccination and an estimated 10% of the cost of insecticidal ear tags, sprays, pour-on applications and dust bags. The remainder of these costs and the total cost of vector control in dairy cattle was attributed to the control of fly annoyance. Treatment costs included veterinary fees and the owner's treatment costs, including labour costs.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1573-7446
    Keywords: anaplasmosis ; cattle ; epidemiology ; immunology ; Louisiana ; tabanid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The relationship between clinical anaplasmosis and other disease morbidity, nutritional supplementation, vaccinations, external and internal parasite control, tetracycline supplementation, reproductive management and use of veterinary services was assessed in 320 beef cow-calf herds in the Red River Plains and south-east areas of Louisiana. Data were collected both by mailed questionnaires and by interviews with owners who reported the presence or absence of clincal anaplasmosis. A relationship was found between other disease conditions and anaplasmosis, suggesting diseasse as a stressor in Anaplasmosis marginale carrier cattle. The herd location of A. marginale seropositive animals and clinical cases of anaplasmosis were related to areas of bottomland hardwood vegetation in which tabanid flies were abundant. This relationship with vegetation was tested by mapping the location of 209 beef and dairy herds which had been serologically tested for anaplasmosis and 256 cases of clinical anaplasmosis in 113 beef and dairy herds.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Veterinary research communications 14 (1990), S. 267-278 
    ISSN: 1573-7446
    Keywords: cattle ; Dermatophilus congolensis ; vectors ; vegetation ; Zambia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Bovine dermatophilosis (Senkobo disease) has been reported annually in Zambia for many years. However, its epidemiology under Zambian conditions had never been adequately studied. Officially the disease has never been recognized as being of any economic consequence. A field study was designed and conducted from August to December 1986, to provide estimates of epidemiological statistics and other factors for the period January 1985 to December 1986 in four districts. These districts supported approximately 28% of the national cattle herd. The study was conducted in communally grazed herds as the disease was reportedly of little significance in commercial herds. A total of 365 herds containing 22 344 head of cattle were inspected and the owners interviewed; 286 herds (78.4%) and 1114 cattle (5.0%) were found to be affected. Rainy weather, vegetation type such as grass savannah, woodland savannah and thorny bush, ticks and biting flies were indicated as important factors in the appearance and course of dermatophilosis in Zambia.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Tropical animal health and production 20 (1988), S. 137-139 
    ISSN: 1573-7438
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Veterinary research communications 13 (1989), S. 287-296 
    ISSN: 1573-7446
    Keywords: anaplasmosis ; cattle ; epidemiology ; immunology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The indirect fluorescent antibody test was used to detect antibodies to Anaplasma marginale in serum samples collected from cattle in the Red River Plains and South-east areas of Louisiana. Convenience sampling of herd clusters was used. A reactor rate of 7.8% was found in 11 085 samples. Beef cattle had a 11.2% reactor rate compared with 3.8% for dairy cattle. The Angus and Angus cross-breed group had the highest reactor rate.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Veterinary research communications 13 (1989), S. 297-305 
    ISSN: 1573-7446
    Keywords: anaplasmosis ; cattle ; incidence ; Louisiana ; survey
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Incidence rates for clinical anaplasmosis were estimated for dairy and beef cattle in the Red River Plains and South-east areas of Louisiana. Annual incidence rates of 0.33% and 0.21% were found in dairy cows for 1983 and 1984 while a 31.0% rate was found in beef cows for 1983. The rates were based on postal surveys of dairy and beef cattle producers. A survey of veterinary practices and a follow-up of respondents to the surveys provided a description of 256 cases of anaplasmosis. Eighty-one percent of the clinical cases occurred in cattle aged 4–6 years and 88% of the cases occurred during the months of July-September.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Veterinary research communications 19 (1995), S. 479-485 
    ISSN: 1573-7446
    Keywords: cattle ; control ; Ethiopia ; model ; population ; prediction ; survival rate ; trypanosomosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The long-term impact of tsetse control on cattle population size in the Didessa Valley, western Ethiopia, was analysed using an age-structured population model. A prior analytical assessment revealed that the risk of cattle dying in the tsetse-unprotected villages ranged from 4 to 9 times higher than in the tsetse-protected village. Model results show that during a period of 10 years the cattle population in the tsetse-protected village of Meti is likely to increase from 167 to 583 animals, while that in the adjacent tsetse-unprotected village of Gale remains almost constant. Model simulations also predict that improving the survival rate of calves in the tsetse-unprotected villages of Taikiltu and Temoloko (which presently have calf mortality rates of up to 35%) would bring a substantial increase in their cattle population.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Tropical animal health and production 22 (1990), S. 171-177 
    ISSN: 1573-7438
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Entre avril 1985 et août 1986, 89 troupeaux laitiers jamaïcains de 10 vaches et plus, ont fait l'object d'une enquête. 1645 vaches en lactation ont été contrôlées à l'aide du test californien pour le dépistage de la mammite (CMT) et 254 prélèvements de lait de mélange ont été récoltés pour un examen bactériologique. Des erreurs fréquentes de conduite du troupeau ont été notées particulièrement dans l'emploi des machines à traire et dans leur entretien ainsi que dans l'abus des antibiotiques. 56 p. 100 des quartiers avaient un résultat égal ou supérieur à 1 ou plus au test californien (CMT), 0,8 p. 100 étaient atteints d'une mammite clinique et 3,2 p. 100 étaient “secs”. Le germe pathogène le plus fréquent,Staphylococcus aureus a été trouvé chez 31 p. 100 des vaches examinées. On estime a 20 p. 100 du potentiel national de production la perte de lait résultant de ces mammites cliniques et subcliniques.
    Abstract: Resumen Se visitaron 89 hatos lecheros con 10 o más vacas en Jamaica, entre abril 1985 y agosto 1986. Se examinaron un total ede 1645 vacas lactantes, por medio de la prueba California para mastitis, colectando a la vez 254 muestras compuestas de leche, para exámenes bacteriológicos. Se detectaron un sinnúmero de fallas en el manejo, especialmente relacionados con el uso y mantenimiento de las máquinas de ordeño, y con el abuso de antibióticos. Cincuenta y seis por ciento de todos los cuartos tenían puntajés de CMT de 1 o más altos, 0,8% tenían mastitis clínica y 3,2% estaban ciegos. El patógeno más común fue elStaphylococcus aureus, el cual se recuperó de 31% de las vacas examinadas. La pérdida de leche resultante de mastitis clínica o subclínica, se calculó en un 20% de la producción nacional potencial.
    Notes: Summary A serological survey of goats in St Elizabeth Parish, Jamaica, comprising the breeding herd at the Agricultural Development Corporation (ADC) facility at Hounslow, five commercial herds and 21 family herds was carried out in 1985–1986. TheLeptospira microscopic agglutination test indicated that one or more serovars in the Canicola serogroup were the most prevalent. Repeated samplings of goats at ADC, Hounslow demonstrated an increase inportlandvere andcanicola seropositive animals following the onset of warmer weather and oficterohaemorrhagiae seropositive animals following the autumn rains and cooler weather. Apart from a cluster of family goats seropositive topomona there was no geographical separation of reactors to the other serovars tested in the parish.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Tropical animal health and production 20 (1988), S. 42-44 
    ISSN: 1573-7438
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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