2 documents found, page 1 of 1
Fish diversity from tributaries of the Chavantes Reservoir, upper Paraná River ...
Rosa, Rafael Rogério; Caetano, Dyego Leonardo Ferraz; Bellay, Sybelle; Moraes, Verônica Rodrigues de; Vieira, Fernando Emmanuel GonçalvesDistribution and abundance of stream fish species can be influenced by environmental characteristics related to the aquatic environment and its margins. The objective of this study was to inventory the ichthyofauna of the Cruz, Taquaruçu, and Taquaruçu II streams, in the Paranapanema River basin, and to analyze the diversity parameters and associate them with abiotic variables. A total of 4,956 specimens were c...
The effects of managerial systems on helminth infection in freerange chickens f...
Vieira, Fernando Emmanuel Gonçalves; Yamamura, Milton Hissashi; Freire, Roberta Lemos; Headley, Selwyn ArlingtonThe effects of managerial systems on the occurrence of gastrointestinal helminths in Free-Range Chickens (FRCs) from northern Paraná, Brazil were investigated. The most predominant (23.3%; 61/262) cestode observed was Raillietina cesticillus; Heterakis gallinarum (71.4%; 187/262) and Ascaridia galli (45%; 118/262) were the predominant nematodes; Postharmostomum commutatum was the only trematode observed in 2.7%...