Desenvolvimento e sobrevivência de ovos de larvas de nematódeos gastrintestinais de bovinos, sob condições naturais

Braga, Ramayana Menezes

Please use this identifier to cite or link to this item: https://rima.ufrrj.br/jspui/handle/20.500.14407/11757

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DC Field	Value	Language
dc.contributor.author	Braga, Ramayana Menezes
dc.date.accessioned	2023-12-22T01:56:44Z	-
dc.date.available	2023-12-22T01:56:44Z	-
dc.date.issued	1980-01-02
dc.identifier.citation	BRAGA, Ramayana Menezes. Desenvolvimento e sobrevivência de ovos de larvas de nematódeos gastrintestinais de bovinos, sob condições naturais. 1980. 89 f. Dissertação (Mestrado em Ciências Veterinárias) - Instituto de Ciências Biológicas e da Saúde, Universidade Federal Rural do Rio de Janeiro, Seropédica - RJ, 1980.	por
dc.identifier.uri	https://rima.ufrrj.br/jspui/handle/20.500.14407/11757	-
dc.description.abstract	O desenvolvimento e sobrevivência dos estágios pré- parasíticos de nematódeos gastrintestinais de bovinos, pertencentes aos gêneros Cooperia spp., Haemonchus spp., Trichostrongylus spp. e Oesophagostomum spp. foram estudados em pastagem natural em uma área da UFRRJ, no município de Itaguaí, RJ, situada a 22°45'S e 43°41'W, à altitude de 33m, de março de 1979 a abril de 1980. A marcação das massas fecais teste e controle foi feita com intervalos semanais e posteriormente de 14 em 14 dias, totalizando 30 pares. Das massas fecais testes, bem como da pastagem ao redor das massas fecais, foram amostradas semanalmente fezes para OPG e larvas infectantes para a verificação de sua viabilidade em diferentes épocas do ano. A pastagem ao redor das massas fecais controle foi examinada a cada 14 dias após as massas testes mostraram-se negativas. A média de persistência de ovos nas fezes foi de duas 42 semanas; para larvas infectantes de Cooperia spp., Haemonchus spp., Trichostrongylus spp. e Oesophagostomum spp., ela foi de 8,3, 5,4, 5,2 e 5,3 semanas, respectivamente. A sobrevivência média das larvas infectantes na pastagem, para os mesmos gêneros, foi de 15,2, 9,8, 10,4 e 9,8 semanas, respectivamente. Em 48% das massas fecais controle observou-se, ainda, a presença de larvas infectantes na pastagem. A análise dos resultados mostra que condições favorá- veis para a sobrevivência de larvas infectantes foram observadas no meio ambiente durante todos os meses do experimento.	por
dc.description.sponsorship	Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq	por
dc.format	application/pdf	*
dc.language	por	por
dc.publisher	Universidade Federal Rural do Rio de Janeiro	por
dc.rights	Acesso Aberto	por
dc.subject	Medicina Veterinária	por
dc.title	Desenvolvimento e sobrevivência de ovos de larvas de nematódeos gastrintestinais de bovinos, sob condições naturais	por
dc.type	Dissertação	por
dc.description.abstractOther	Studies were made of the development and survival of the pre-parasitic stages of the gastro-intestinal nematodes of bovines belonging to the genera Cooperia spp., Haemonchus spp., Trichostrongylus and Oesophagostomum spp. on natural pastures at the Federal Rural University of Rio de Janeiro State, municipality of Itaguaí, situated at 22°45'S and 43°41'W, at an altitude of 33 metres. The study was carried out from March, 1979 to April, 1980. The identification of the experimental and control faecal masses was carried out originally every 7 days and afterwards every 14 days, to a total of 30 pairs of masses. In the case of the experimental masses, samples were taken weekly to establish the number of eggs per gram of faeces (epg) and of infective larvae, as well as the number of larvae on the pasture around the faecal mass, in order to establish the degree of infectivity at different times of the year. The vegetation around the control mass was examined fortnightly, 44 after the experimental mass was found to be negative. The mean persistence of eggs in the faeces was two weeks; in the case of the infective larvae of Cooperia spp., Haemonchus spp., Trichostrongylus spp. and Oesophagostomum spp., the values observed were 8.3, 5.4, 5.2 and 5.3 weeks respectively. The mean survival of infective larvae on pasture, for the same genera, was 15.2, 9.8, 10.4 and 9.8 weeks respectively. In 48% of the control faecal masses, larvae were still found on the pasture. An analysis of the results shows that favourable conditions for the survival of infective larvae were observed in every month of the experiment.	eng
dc.contributor.advisor1	Honer, Michael Robin
dc.contributor.advisor1Lattes	http://lattes.cnpq.br/5039574335668169	por
dc.creator.Lattes	http://lattes.cnpq.br/9049216736905744	por
dc.publisher.country	Brasil	por
dc.publisher.department	Instituto de Ciências Biológicas e da Saúde	por
dc.publisher.initials	UFRRJ	por
dc.publisher.program	Programa de Pós-Graduação em Ciências Veterinárias	por
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Variação estacional de larvas infestantes de nematóides parasitos de bovinos em pastagem de cerrado de Sete Lagoas, MG. Arq. Esc. vet., UFMG, 24(1) 97-113. 48 HART, J.A., 1964. Observation on the dry season strongyle infestation of zebu cattle in northern Nigeria. Brit. Vet. J., 120:87-95. HENDERSON, A.W.K. & KELLY, J.D., 1978. Helminth parasites of beef cattle in the east Kimberley and Victoria River Districts of northern Australia. Trop. Anim. Hlth. Prod., 10 (2):63-73. KATES, K.C., 1950. Survival on pasture of the free-living stages of some common gastro-intestinal nematodes of sheep. Proc. Helminthol. Soc. Wash., 17:39-58. KEITH, R.K., 1953. The differentiation of the infective larvae of some common nematode parasites of cattle. Aust. J. Zool., 1:223-235. KÖEPPEN, W., 1928. Klimakarte der erde. Gotha, Perthes. LEE, R.P.; ARMOUR, J. & ROSS, J.G., 1960. The seasonal variations of strongyle infestations in Nigerian zebu cattle. Brit. Vet. J., 116:34-46. LEVINE, N.D. & TODD, K.S. Jr., 1975. Micrometeorological factors involved in development and survival of free - living stages of the sheep nematodes Haemonchus contortus and Trichostrongylus colubrifomis. A Review. Intern. J. Biometeorol., 19(3):174-183. 49 MELO, H.J.H., 1977. População de larvas infestantes de nematóides gastro-intestinais de bovinos nas pastagens, durante a estação seca, em zona de cerrado do sul de Mato Grosso. Arq. Esc. Vet., UFMG, 29(1):89-95. OGUNSUSI, R.A., 1979. Pasture infeetivity with trichostrongylid larvae in the northern guinea savanna of Nigeria. Res. Vet. Sci., 26:320-323. OKON, E.D. & ENYENIHI, U.K., 1977. Development and survival of Haemonchus contortus larvae on pastures in Ibadan.Trop. Anim. Hlth. Prod., 9:7-10. REINECKE, R.K., 1970. Helminth diseases in domestic animals in relation to their environment. S. Afr. J. Sci., 66:192 -198. ROSE, J.H., 1960. Experiments on the transmission of cattle lungworm infection. J. Comp. Pathol., 70(4):475-481. ROSE, J.H., 1963. Observations on the free-living stages of the stomach worm Haemonchus contortus. Parasitol., 55:469- 481. ROSE, J.H., 1970. Parasitic gastro-enteritis in cattle. Factors influencing the time of the increase in the worm population of pastures. Res. Vet. Sci., 2:199-208. 50 SILVERMAN, P.H. & CAMPBELL, I.A., 1959. Studies on parasitic worms of sheep in Scotland. I. Embryonic and larval development of Haemonchus contortus at constant conditions. Parasitol., 49:23-38. SPRENT, J.F.A., 1946. Some observations on the bionomics of Bunostomum phlebotomum (Railliet, 1900) a hookworm of cattle. Parasitol., 57:192-201. SPRENT, J.F.A., 1946e. In: LEE, R.P.; ARMOUR, J. & ROSS, J.G. 1960. The seasonal variations of strongyle infestations in Nigerian zebu cattle. Brit. Vet. 3., 116:34-46. STOLL, N.R., 1930. On methods of counting nematode ova in sheep dung. Parasitol., 22:116-136. TAYLOR, E.L., 1938. Observations on the bionomics of strongyloid larvae in pastures. I. The duration of infection in pasture herbage, Vet. Red., 50(40):1265-1272. VEGLIA, F., 1915. The anatomy and life history of the Haemonchus contortus (Rud.). Union. S. Afr. Dept. Rpt. Dir. Vet. Res., 3/4:347-503. WILLIAMS, J.C. & MAYHEW, R.L., 1967. Survival of infective larvae of the cattle nematodes, Cooperia punctata, Trichostrongylus axei and Oesephagostomum radiatum. Amer. I. Vet. Res., 28:629-640.	por
dc.subject.cnpq	Medicina Veterinária	por
dc.thumbnail.url	https://tede.ufrrj.br/retrieve/62336/1980%20-%20Ramayana%20Menezes%20Braga.pdf.jpg	*
dc.originais.uri	https://tede.ufrrj.br/jspui/handle/jspui/3983
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dc.originais.provenance	Made available in DSpace on 2020-10-15T13:19:50Z (GMT). No. of bitstreams: 1 1980 - Ramayana Menezes Braga.pdf: 681603 bytes, checksum: 39c357f70a912778a9fffe4934c6bdec (MD5) Previous issue date: 1980-01-02	eng
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