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Ultrastructure of the digestive tract in neotropical carnivorous catfish Hemisorubim platyrhynchos (Valenciennes, 1840) (Siluriformes, Pimelodidae)
(Scanning, 2015-10-07) [Artigo]
The surface of the digestive tract of Hemisorubim platyrhynchos was analyzed by scanning electron microscopy. Morphometric studies by transmission electron microscopy were performed to analysis the intestinal microvilli. ...
Effects of re-stripping on the seminal characteristics of pacu (Piaractus mesopotamicus) during the breeding season
(General And Comparative Endocrinology, 2015) [Artigo]
Seminal characteristics in teleost fish with an annual reproductive period, such as pacu (Piaractus mesopotamicus), may vary during the breeding season. The sperm formed before the beginning of the spawning period may be ...
Anti-androgenic activities of diuron and its metabolites in male Nile tilapia (Oreochromis niloticus)
(Aquatic Toxicology, 2015-07-01) [Artigo]
Diuron (3-(3,4-dichlorophenyl)-1,1-dimethylurea) is a widely used herbicide which has been frequently detected in surface waters throughout the world. In vivo bioassay guided fractionation studies indicated that diuron may ...