This 3-slide information bite addresses the role of pituitary gland in the spawning induction. This topic addresses factors influence the effectivness of pituitary gland and the concentration of gonadotropic hormones. The collection and storage of pituitary glands have been addressed in the information bite. [important]Fish spawning induction – pituitary gland[/important]
Category: Lectures and Bites
Permanent link to this article: https://fishconsult.org/?p=2343
Permanent link to this article: https://fishconsult.org/?p=2336
Jan 20 2012
Force hatch of fish embryos
This information bite addresses the phenomenon of reluctant hatching of fish embryos. Hatch synchronization is always targeted in order to allow better hatchery management and reduce size differences among hatched larvae or fry. In this situation, force hatch approach could be adopted. This practice works directly on embryo’s hatching glands and its enzymes. Examples of …
Permanent link to this article: https://fishconsult.org/?p=2289
Jan 20 2012
Fertilization of fish eggs and quality of off-spring
This piece of information shows the practice of the sequentuial fertilization of fish egg is carried out by several males. The rationality of such practice as well as concerns have been highlighted. The drawback of such practice could be summarized in the overdominance of particular sperm over others which leads to lowering the effective breeding number …
Permanent link to this article: https://fishconsult.org/?p=2275
Jan 15 2012
Fish egg fertilization (illustrated)
This single slide shows the mechanism of egg fertilization in fish and some factors that could retard or enhance fertilization. This summary shows that blood clotting that could result of improper handling of female fish during eggs can close the very tiny opening that each egg has and known by micropyle preventing any entry of …
Permanent link to this article: https://fishconsult.org/?p=2268
Dec 17 2011
Ploidy induction in fish
This information bytes address the induction of triplody and tetraploidy fish including reasons, procedures and ploidy identification. [important]Ploidy induction in fish[/important]
Permanent link to this article: https://fishconsult.org/?p=2065
Dec 17 2011
Application of compensatory growth in fish
The role of fish hatchery is to produce healthy and high quality fry or fingerlings in sufficient numbers according to the operation plan of the hatchery. Therefore and in reference to the “compensatory growth” phenomenon in fish, hatcheries are not supposed to produce large-size fingerlinger on the cost of their number (unless economically justified). In …
Permanent link to this article: https://fishconsult.org/?p=2059
Nov 27 2011
Fish hatchery management
This presentation addresses the management of fish hatcheries starting with some information on fish reproduction in general. Before addressing artificial reproduction, natural collection of wild fry or post larvae have been covered. The presentation includes sexual maturation and broodstock management including maintenance and replacement. Examples and hatchery technologies and so requirements have been included. Various …
Permanent link to this article: https://fishconsult.org/?p=1620
Permanent link to this article: https://fishconsult.org/?p=1290
Oct 23 2011
Promotion of aquaculture in family farming workshop (AARDO – Oman) 2007
This international workshop has been organized by Afro-Asian Rural Development Organization (AARDO) and hosted by Ministry of Agriculture and Fisheries, Sultanate of Oman. The workshop was held in Muscat during the period 8-12 September, 2007. The promotion of small-scale aquaculture was the principal objective of the workshop. Among the workshop activities, country reports were presented. …
Permanent link to this article: https://fishconsult.org/?p=671