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Time and temperature on the storage of oocytes from jundiá catfish, Rhamdia quelen
(2011-10-01)
The objective of this study was to evaluate the effects of three water and storage temperatures on the oocytes of the jundiá catfish, Rhamdia quelen. A factorial experimental design over time, with treatments completed in ...
Short-term storage of the oocytes affects the ploidy status in the yellowtail tetra Astyanax altiparanae
(Cambridge Univ Press, 2018-02-01)
In fish, many factors can affect reproduction during in vitro fertilization, therefore determination of the factors that affect affecting gamete quality is needed. However, few studies have focused on gamete quality and ...
Storage of Steindachneridion parahybae oocytes at different temperatures
(Elsevier B.V., 2014-12-30)
The objective of this study was to assess the influence of temperature and time on the storage of fresh Steindachneridion parahybae oocytes. Two experiments were carried out: (1) the fertilization rates of oocytes exposed ...
Temperature and storage period over spermatic parameters of jundia, Rhamdia quelen (Quoy & Gaimard, 1824)
(Wiley-Blackwell, 2013-03-01)
The aim of this work was to evaluate the spermatic parameters of jundia, Rhamdia quelen, semen stored for short periods under different temperatures. Fifteen males were used in a time factorial experimental design (13x3x3x3). ...
Improvement of gamete quality and its short-term storage: an approach for biotechnology in laboratory fish
(Cambridge Univ Press, 2015-03-01)
In fish, in vitro fertilization is an important reproductive tool used as first step for application of others biotechniques as chromosome and embryo manipulation. In this study, we aimed to optimize gamete quality and ...
Cat preantral follicle survival after prolonged cooled storage followed by vitrification
(2018-04-01)
The aim of this study was to investigate the impact of prolonged storage at 4 °C on survival of cat preantral follicles (PAFs) pre- and post-vitrification. Ovaries were obtained from 12 queens and transported at 4 ºC within ...
Artificial fertilization of oocytes and sperm activation in pacu: effects of the spermatozoa:oocyte ratio, water volume, and in natura semen preservation
(Sociedade Brasileira de Zootecnia, 2011-01-01)
Objetivou-se foi avaliar a fertilização artificial e a duração da motilidade espermática em pacus com diferentes doses inseminantes, volumes de água e preservação do sêmen in natura. Foram realizados quatro experimentos ...
The Role of Mating in Oviduct Biology
(Wiley, 2016)
The oviduct connects the ovary to the uterus, and is subject to changes that influence gamete transport, fertilization, and early embryo development. The ovarian steroids estradiol and progesterone are largely responsible ...
Morphofunctional changes in Leydig cells throughout the continuous spermatogenesis of the freshwater teleost fish, Serrasalmus spilopleura (Characiformes, Characidae): an ultrastructural and enzyme study
(Springer, 2007-08-01)
The freshwater fish Serrasalmus spilopleura (piranha) has a continuous type of reproduction; gametes are constantly produced and released during the reproductive cycle. The testes do not undergo seasonal morphological ...
Oocyte viability and cortical activation under different salt solutions in Prochilodus lineatus (Teleostei: Prochilodontidae)
(2017-12-01)
This study aimed to evaluate the effect of five salt solutions in the maintenance of morphological features of cortical alveolus, hydration and fertilization capacity of Prochilodus lineatus oocytes. For this purpose, five ...