Now showing items 1-9 of 9
Hatching, survival and deformities of piracanjuba (Brycon orbignyanus) embryos subjected to different cooling protocols
(Cryobiology, 2014-12-01) [Artigo]
Groups of one hundred Brycon orbignyanus embryos at the stage of blastopore closure were subjected to different cooling protocols. Different combinations and concentrations of cryoprotectants were tested: sucrose, methanol, ...
Early development of Astronotus ocellatus under stereomicroscopy and scanning electron microscopy
(Zygote, 2012-08-01) [Artigo]
Astronotus ocellatus, popularly known as Oscar, is a cichlid fish from the Amazon basin (Brazil) with a great potential for fish farming. The aim of this research is to describe the morphology of eggs and larvae of A. ...
Influences of Sex and Age on the Hematological Profile of the Jundia (Silver Catfish) Rhamdia quelen
(Journal Of Aquatic Animal Health, 2016-01-01) [Artigo]
In this study, sex and age influenced the hematological profiles of Jundia (Silver Catfish) Rhamdia quelen. Females showed lower levels of hemoglobin, young fish increased lymphocyte counts, and older fish increased ...
Effect of broodstock age on reproductive parameters in silver catfish Rhamdia quelen
(Aquaculture Research, 2017-09-01) [Artigo]
Stereological analysis of gonads from diploid and triploid fish yellowtail tetra Astyanax altiparanae (Garutti & Britski) in laboratory conditions
(Zygote, 2017-08-01) [Artigo]
This study aimed to examine the gonadal morphology of diploid and triploid fish through stereological analysis. Triploid individuals were obtained after temperature shock (40 degrees C for 2 min) at 2 min post-fertilization ...
Morphology of gametes, post-fertilization events and the effect of temperature on the embryonic development of Astyanax altiparanae (Teleostei, Characidae)
(Zygote, 2016-12-01) [Artigo]
The aim of this study was to describe the morphology of gametes, post-fertilization events and subsequent temperature effects on the early developmental stages of the neotropical species Astyanax altiparanae. The sperm of ...
Maternal age influences on reproductive rates in Nile tilapia (Oreochromis niloticus)
(Revista Brasileira De Zootecnia-brazilian Journal Of Animal Science, 2015-04-01) [Artigo]
In this study we examined the effects of the maternal age on the fecundity (absolute and relative), egg production, and fertilization rates of Nile tilapia (Oreochromis niloticus). Females were divided into three groups: ...
Induced reproduction and early development histology of Oscar Astronotus ocellatus (Agassiz, 1831)
(Zygote, 2015-04-01) [Artigo]
Oscar (Astronotus ocellatus) is an important fish from the Amazon Basin that has great potential for fish farming, human consumption, sport fishing and fish keeping. This study aimed to evaluate the effect of two hormonal ...
Embryonic development of teleost Brycon orbignyanus
(Zygote, 2018-08-01) [Artigo]
Brycon orbignyanus is an important large teleost that is currently on the list of endangered species, therefore studies on its reproductive biology and embryology arc fundamental to help species conservation and recovery. ...