Cryopreservation in aquatic species in general has been constrained to research activities
for more than 60 years. Although the need for application and commercialisation pathways …

The knowledge of sperm quality in the broodstock males of different ages is a prerequisite to
identify the reproductive ability of cultivated fish for the hatchery management. Thus, in this …

European grayling (Thymallus thymallus) is an endangered salmonid fish species and its
populations have decreased considerably in European waters in recent decades. One of the …

Abstract The Asian catfish, Clarias magur, is an endangered fish species, which is
immensely important due to its high commercial value in India and other South‐East Asian …

Simple Summary The aim of this study was to evaluate the effect of Ovopel on the
reproductive effectiveness (measured as weight of eggs, egg quality, and ovulation rate) of …

Sperm quality is primarily defined as its capability of fertilising an egg and consequently
allowing for the development of a normal embryo. Sperm quality can be highly variable; …

Senescence, the deterioration of organismal function with advancing age, is a puzzling
biological phenomenon. While actuarial senescence (ie, age-dependent increases in …

This study was conducted at the hatchery complex of Akwa Ibom State University to
investigate the effect of different ages of African catfish (Clarias gariepinus) on their …

This study aimed to develop a protocol to synchronize final oocyte maturation and oocyte
collection in both natural (first experiment) and artificial reproduction (second experiment) of …

The aim of this study was to increase our knowledge about the nutritional needs of walleye
(Sander vitreus (Mitchill, 1818)) broodstock. Two dietary treatments were tested: the first …