Standardization of 2-phenoxyethanol as anesthetic for juvenile Brycon cephalus (Gunther, 1869): the use in field procedures
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چکیده
منابع مشابه
Structural analysis of the embryonic development in Brycon cephalus (Günther, 1869).
The embryogenesis of Brycon cephalus was established in seven stages: zygote, cleavage, blastula, gastrula, segmentation, larval and hatching, in an incubation period of 11 h (26 degrees C). The zygote phase was observed directly after fertilization and egg hydration. Cleavage began at 0.5 h of incubation and extended up to the morula phase (1.5 h; +100 blastomeres). Cleavage was meroblastic an...
متن کاملJainus amazonensis (Monogenea: Dactylogyridae) PARASITES OF Brycon cephalus (GÜNTHER, 1869) CULTURED IN THE LOWLAND OF THE PERUVIAN AMAZON
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abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...
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چکیده ندارد.
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this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
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ژورنال
عنوان ژورنال: Ciência Rural
سال: 2004
ISSN: 0103-8478
DOI: 10.1590/s0103-84782004000200035