Zobrazeno 1 - 10
of 22
pro vyhledávání: '"D. K. Punyua"'
Autor:
Peter M. Gitu, A. Hassanali, Albert Ndakala, M. M. Malonza, D. K. Punyua, Mary Ndungu, Wilber Lwande, E. Nyandat, Lambert Moreka, H. Amiani
Publikováno v:
Phytochemistry. 50:401-405
The repellency of the essential oil of the previously reported anti-tick pasture shrub Gynandropsis gynandra and identified constituents of the oil were evaluated against the livestock tick, Rhipicephalus appendiculatus. In a tick-climbing repellency
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad55df5d9b2a96f4d8175f0e549da11b
https://doi.org/10.1016/s0031-9422(98)00507-x
https://doi.org/10.1016/s0031-9422(98)00507-x
Publikováno v:
Preventive Veterinary Medicine. 22:169-181
Ten farmers on Rusinga Island, Lake Victoria, Kenya were selected to study the epidemiology of tick-borne diseases (TBDs) and their possible effects on calf performance. During the years 1986–1988 a total of 162 calves were ear-tagged, weighed mont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::777aba9019b4f59b35a4366acb1e27da
https://doi.org/10.1016/0167-5877(94)00408-b
https://doi.org/10.1016/0167-5877(94)00408-b
Publikováno v:
International Journal of Tropical Insect Science. 14:15-19
A quantitative measure for assessing the level of resistance of zebu cattle to Rhipicephalus appendiculatus is discussed. Basic data for the derivation of the mathematical index were from artificial infestation of cattle to adults, nymphs and larvae
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5eefff53b566640e9dc78a5b0dad78f
https://doi.org/10.1017/s1742758400013345
https://doi.org/10.1017/s1742758400013345
Publikováno v:
International Journal of Tropical Insect Science. 13:685-690
A quantitative index of resistance to ticks, which had been derived from results of artificial infestation of East African zebu cattle with a Rusinga Island (Lake Victoria) stock of Rhipicephalus appendiculatus, was tested for consistency using three
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b6f28e4ff2782cacfa5e47f1b2743c2
https://doi.org/10.1017/s1742758400007906
https://doi.org/10.1017/s1742758400007906
Autor:
D. K. Punyua
Publikováno v:
International Journal of Tropical Insect Science. 13:537-544
Tropical African ticks are found on their hosts throughout the year, but at varying infestation levels. These population changes, for most of the time, have been associated with climatic changes. Their development is inversely related to temperature.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::809c112bc08bd986dad6c13264172b3c
https://doi.org/10.1017/s1742758400016118
https://doi.org/10.1017/s1742758400016118
Autor:
S M Hassan, D K Punyua
Publikováno v:
Experimental & Applied Acarology. 14:61-65
Contrary to patterns described elsewhere, tick numbers on Rusinga Island cattle drop markedly after the onset of the rainy season. One possible explanation is that this is related to seasonal differences in host behaviour, since cattle grazing on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5396a301473724b4d701b6bef877c524
https://doi.org/10.1007/bf01205352
https://doi.org/10.1007/bf01205352
Publikováno v:
International Journal of Tropical Insect Science. 13:69-77
Progress in the development of a simple life cycle model, with both deterministic and stochastic components for the brown ear tick, Rhipicephalus appendiculatus Neuman (Acarina: Ixodidae), is described. Control strategies or interventions that are us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d250ed6241c24fc3073ba6acf2d4bd6
https://doi.org/10.1017/s1742758400013916
https://doi.org/10.1017/s1742758400013916
Publikováno v:
Veterinary Parasitology. 38:205-213
Mature, unimproved East African Zebu cattle (Bos indicus) naturally exposed to ticks from birth were ranked for resistance to ticks by repeated whole-body counts of infesting ticks. Four cattle of high resistance, four of low resistance and two of in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a243706c42b9699325a5e2502d323e1c
https://doi.org/10.1016/0304-4017(91)90130-n
https://doi.org/10.1016/0304-4017(91)90130-n
Publikováno v:
Scopus-Elsevier
Tick-susceptible Friesian steers were used as bait animals to assess the availability of adult Rhipicephalus appendiculatus Neumann on the pasture. Assuming that initial gross pickup rates of ticks by cattle were similar, the numbers of female ticks
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb7bcc7f796c26f22801bfdf441ab8d5
https://doi.org/10.1093/jmedent/28.1.127
https://doi.org/10.1093/jmedent/28.1.127
Publikováno v:
International Journal of Tropical Insect Science. 18:163-165
A preliminary survey was conducted in coastal Kenya to assess the hosts of economically important tick species (Acari: Ixodidae) of domestic animals, as part of a training course for tick scientists from African research institutions. Ticks were coll
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e32f4fe2f8ba911b2a9d8c4325c2095
https://doi.org/10.1017/s1742758400007815
https://doi.org/10.1017/s1742758400007815