ENGINEERING appropriate BETTA FISH JANTAN
I. INTRODUCTION
fish (Bettasplendens) is one of the ornamental fish in fresh water commercial value, both for the domestic market and export markets. As the ornamental fish avidly fighting, has the appearance that the fin has a relatively long with a good color spectrum, while female fish in the appearance less attractive because siripnya not long, and the color is not bright. on the fish, the male sex of a higher price than the female sex. With that base their production efforts required male fish, which can be done en masse.
II. PEMIJAHAN ENGINEERING AND PRODUCTION
In a mature male parent gonad color siripnya are brighter in the female parent bellies bulge and in a transparent, egg production in the channel can be seen. In principle, a pair of spawning is done in each separate container (aquarium, a bucket or in boxes that are placed in the vessel).
Before mixed, female parent included in the vial in order not to disrupt the male in the nest to make foam. Nest is made by taking air bubbles from the surface and release it to the bottom surface of leaves or plants that float on the water surface of the water. This process continues for hours with the occasional stop to eat.
When the nest is ready, the parent female excluded from the bottle, mixed with male to be able to start pebiakan. At the time of spawning male disguise the parent body of a female form letter "U" with the ventral side by side for ± 1 minute until the eggs are fertilized sperm immediately.
Eggs slowly sinking and will soon be taken by the male parent with his mouth next to the nest is placed in foam. During the spawning process ± 1 hour and 20's 25 stages. spawning the same.
When the spawning activity ended, the parent female reproductive moved from place to place returned to the maintenance of the parent, but should first be included in the solution methyline blue 2 mg / liter for 24 hours to treat wounds that may exist after spawning. Male parent are still in the spawning vessel to treat and protect the eggs hatch. In each spawning obtained
eggs as 1000's 1,500 eggs.
Next flyblow and the maintenance and enlargement can be done in the form of container vessel wall with a feed worms Tubifex sp. or Chironomus sp. ready to be marketed.
III. ENGINEERING appropriate BETTA FISH JANTAN
Ask the male fish have brighter colors and fin-fin longer than the fish Ask female. Therefore, the male fish Ask consumers demand more and have commercial value higher than the female. In connection with the need to improve production techniques conducted Ask male fish in each spawning. One of the efforts to be made is with the hormone androgen in the sex differentiation.
Techniques of the hormone is how steep the fish eggs on the Ask phase of the eye spots (± 30 hours after spawning) in the solution to the hormone 17 negligent Metiltestosteron with the concentration of 20 mg / liter of water for 8 hours. Making hormone solution is to do with the way hormones as much as 20 mg in 1 ml to 70% alcohol and further added to the water will soak used 1 liter.
The results included soaking eggs back into the container that contains a water solution with the given methyline blue to prevent the occurrence fungi in the process
hatchery.
The next stage with the same procedures seedling Ask the fish until the age of three months to be able to be distinguished of the species. It is expected that with the steroid hormone can reproduce Ask male fish to 95% in each spawning.
Indonesia
