作者: Alessandro Francisco Talamini do Amarante , Patrizia A. Bricarello , Gilberto P. Da Rocha , Raquel A. Da Rocha
DOI:
关键词: Trichostrongylus colubriformis 、 Panicum 、 Feces 、 Biology 、 Animal science 、 Forage 、 Botany 、 Diel vertical migration 、 Brachiaria 、 Larva 、 Stratum (linguistics)
摘要: 1 ABSTRACT:- ROCHA, R.A.; BRICARELLO, P.A.; G.P.; AMARANTE, A.F.T. (Trichostrongylus colubriformis larvae recovery from different Brachiaria decumbens and Panicum maximum strata). Recupe- racao de larvas Trichostrongylus em diferentes estratos e maximum. Revista Brasileira Parasitologia Veterinaria, v. 16, n. 2, p. 77-82, 2007. Departamento Parasitologia, Instituto Biociencias,UNESP. Caixa Postal 510, Botucatu, SP, 18618-000 Brazil. E-mail: rrabdallah@hotmail.com The purpose of the experiment was to evaluate infective vertical migration in two forage grass species. Experimental modules formed by eight plots, established with cv. Australian Aruana, were used study, totaling four plots for each Each plot divided into six 30 x cm subplots. Larval evaluated seasons year, plant strata (0-7, 7-14, 14-21, 21-28 above 28 cm). Four feces deposits made, one season middle 30-cm tall forage. collected ten days after deposit experimental Grass height measured immediately before collections. cut an area measuring 10-cm radius. manually There a species stratum interaction made autumn (P<0.05). During that season, most recovered base; meanwhile, at apex, biggest average registered aruana grass. Infective (L3) similar among during spring. In springtime, L3 occurred both No any winter summer. Study results show T. more influenced weather conditions than