The Centre also played an active role in conducting parent breeds freshwater fish to ensure quality supplies are sufficient as well as seed production activities and freshwater fingerlings to farmers. Once we reached the centre, the head of the centre ga

The Centre also played an active role in conducting parent breeds freshwater fish to ensure quality supplies are sufficient as well as seed production activities and freshwater fingerlings to farmers. Once we reached the centre, the head of the centre gave a speech about the objective of the centre, effective way of breeding freshwater fish, and some interesting facts about freshwater fish.Freshwater fisharefishthat spend part or all of their lives infresh water, such asriversandlakes, with asalinityof less than 0.05%. Among freshwater fish that exist in PPA Tapah is Keli, Tilapia, Lampan, Baung and freshwater prawns macrobrachium rosenbergii. The fish seed production plays a very important role to the aquaculture industry.It can guarantee a continuous supply of fish seed and make the industry as a highly-developed projects and has a bright future.The haead of the center demonstrated the artificial reproduction of catfish to us.

Artificial Reproduction Catfish

- Selection of parent

Both male and female parent must have common features as follows: Weight >500 gm.

Age >1 year.

Do not disabled or sick.

Abdomen soft when pinched.

Figure3: Male(top) and Female(bottom)

Male parent shall have the reproductive apparatus (genital papilla) rigid physical. If dissected, gonads (testes) mature has creamy white droplet sperm. Female parent should also have a distended abdomen and soft when pinched.Genital papilla slightly swollen and reddish while the eggs will come off a bit if stomach dispirit slowly.Brownish green eggs with uniform size and if there is no white marks, which means it is suitable for breeding by induction.

-Hormone Injections

Ovaprim hormone fairly widespread use nowadays. This hormone is found in the form of a solution of 10 ml ready to be injected into fish. There are several other types of hormones that can also be used as a stimulant in fish breeding process.

These hormones consist of Ovatide, HCG, LHRH, PG and so on.

Among other equipment needed during hormone injection is

The injector (1-3 ml)

Water bath (10 kg)

A towel

thermometer

-Injection Technique

hormone injections carried out preferably in the late afternoon between 6.00pm to 8.00pm.The ideal time for a parent not any trouble at night, less affected by changes in temperature and light influence while we have plenty of time to process the fertilization during the next day. Ova-prim hormone injected at a rate of 0.5 ml / kg for females and 0.2 ml / kg for male parent.Injections were made on the muscles on the side of the fish body.Parent individually isolated to reduce noise and prevent injuries.

-Fertilization Technique

Male parent

Master male belly dissected with scissors

A pair of testes containing sperm produced using chopsticks

Testis placed on a piece of clean paper towels

Female parent

Female parent taken with care because the eggs will come out by itself if the parent was floundering.It can be held with a towel on his head and an assistant longer holds in the tail

Bowl held out under conflicting with breeding burrow

dispirit stomach leads to tail until the eggs discharged out

-Fertilization

Side mature testis and large enough to be used for providing sperm to a parent.Testis was held with a pair of chopsticks chopstick while they used to tear the testicles to the sperm fall into the bowl containing the egg.The mixture of sperm and egg is then mixed with a feather clean and then rinsed with clean water three times.