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Sabtu, 04 September 2010

Ways of Breeding fish Tawes (Puntius javanicus)

Ways of Breeding fish Tawes (Puntius javanicus)


The provision of quality seed in sufficient quantities and continuous is an important factor in the development of fish farming for consumption.

Effort is mostly done in Magelang District, as in the Village District Paremono Mungkid therefore supported the availability of good water during the dry season and rainy. Besides, it felt more rnenguntungkan hatchery operations because a relatively short time spent approximately three weeks - one month, and its marketing was easy.

tawes fish hatchery is there some way that hatchery fish in the ponds, hatcheries and hatchery in rice fields in the hapa. Here is a technique pembenihannya:

1. Holding elections
➢ To get good quality seeds and the number of lots in the hatchery Tawes need to choose a good parent with the characteristics:

a. Location of the anal opening is located relatively close to base of tail.
b. Relatively small head and pointed.
c. Large scales and regular.
d. Wide and solid base of tail.

Generally fish ➢ tawes males began spawning at age less than one year, and its parent tawes females at approximately age 1.5 years. To know that the parent fish tawes have matured genitals and ready to be cultivated with signs as follows:


a. Female parent
- His stomach expands towards genetal (release) if dirabalebih soft.
- Hole anal somewhat reddish in color.
- Close the gills when touched more slippery.
- When the abdomen massaged from head to anal direction will come out blackish liquid.

b. Male parent
When the abdomen massaged from head to anal direction will come out whitish colored liquid (sperm).

Close the gills when palpated feels rough.
- When the abdomen massaged from head to anal direction will come out whitish colored liquid (sperm).
- Close the gills when palpated feels rough.


2. Pond Preparation

Tawes spawning fish pond as well as a hatchery pond and the pond. Before used for spawning, pond dried.
Improvements constructed and the pond made elongated channel (caren / kamalir) of expenditure towards water intake of water with a width of 40 cm and depth of 20-30 cm.


3. Parent Waiver
The parent fish ➢ tawes who have been chosen to be cultivated later diberok, Pemberokan with the placement of the male parent and female separately for 4-5 days.
After diberok then inserted into the parent fish breeding ponds have been prepared.


➢ parent Submission to the pool when the water reaches approximately 20 cm.
➢ The number of the parent who removed 25 male and female parent male parent 50 tails.
➢ In the afternoon about 16:00 o'clock in the water entering the pond is enlarged so that the water flow faster.
Usually the parent fish ➢ tawes spawned at 19:00 to 22:00 o'clock.
➢ Parent will spawn normally have started at noon romp around the water intake.


4. Hatching Egg

➢ After tawes laying parent fish, the water entering the pond is reduced so that the eggs are not washed up, done at the hatchery spawning pond as well.
➢ In the morning checked if there are eggs that accumulate around the pool or the shallow part of the land distributed by swinging a broom stick in the bottom of the pond.
Tawes fish ➢ Eggs usually hatch all after 2-3 days.
➢ From the result of hatchery reared fish in the pond for approximately 21 days.

5. Fish Seed Harvesting
➢ Harvest conducted in the morning.
➢ dampen / drain the pond.
➢ After the seeds were dikamalir / dicaren, seeds are captured by the Waring or seser.
➢ The seeds are housed in hapa who have been placed in flowing water channel water flow is not heavy.
➢ Seed lersebut again later maintained in the pond or sold.


6. Separating
➢ At first pond dried for 2-3 days.
➢ Repair embankment, making caren / channel.
➢ Basic swimming analyzed using hoe, then fertilized with Urea & SP 36 10 gr/m2 and manure from 1 to 1.5 kg/m2 depending on fertility.
➢ After pool fertilized and then watered as high as 2-3 cm and 2-3 days later left the pool water added gradually until a depth of 50 cm.
➢ Then spread the seeds of the pond by stocking ekor/m2 10-20.
➢ Maintenance performed approximately three weeks - a month.
➢ The seeds can be harvested and the results can be sold or stocked in the pond anymore II.

source: Bambang Sunarno, IN AzNa Books, 2010

Jumat, 28 Mei 2010

characteristics of the prospective parent fish

characteristics of the prospective parent fish

a. prospective parent tilapia

- Bright body color grayish black
- Form slender body of tilapia (compressed) with full and regular scales
- Member or incomplete organs, scales regularly, the body does not have a disability and there is no deformity, the body is not attached by a parasite, no lumps, gill net, gill cover normal (not thick or thin) and slimy.
- Elasticity of the body: chewy and not mushy
- Age:
Male tilapia 6-8 months
tilapia Females 6-8 months
- Total length:
Males 16-25 cm
Females 14-20 cm
- Body weight:
Males: 400-600 grams
Females: 300-450 grams

b. Prospective Parent Goldfish
- Color Clear Body
- Full of fish organs, regular scales, lateral line is not broken, the body is not disabled and there is no deformity, the body does not plastered by the parasite, and there are no lumps, gill net, gill cover normal.
- Elasticity of the body: chewy and not mushy

- Female Weight: 1.5 to 2 kg / head
- Weight Males: 0.5 to 1 kg / head


c. Prospective Parent carp fish

- Body color of brown and the belly is white or yellowish silvery.
- The body of a vertical flat carp
- Member or incomplete organs, the body is not disabled and there is no deformity, no genital defects (damage), the body remains free of pathogens, gill net, the body is not swollen / bruised and no moss, close to normal gill and body mucus.
- Age:
Males 24-30 months
Females 30-36 months
- Standard Length:
Males 30-35 cm
Females 30-35 cm
- Body weight:
Males: 1.5 to 2.0 kg / head
Females: 2.0 to 2, 5 kg / head


d. Prospective Parent Catfish
- On top of head blackish-green, dorsal top to base of tail brownish-green
- Shape the body: the head horizontally flattened, rounded body section elongated and flattened vertical tail section.
- Full of fish organs, the body is not disabled, and there is no deformity, no genital defect (damage) the body does not plastered body pathogens, gill net, the body is not swollen / bruised and not moss, close to normal gill and body mucus,
- Parent Age: Male: 8-12 months, female: 12-15 months
- Standard Length:
Males: 40-45 cm
females: 38-40 cm
- Weight:
Males: 500-750 grams / fish
female: 400-500 grams / fish

Kamis, 20 Mei 2010

choose parent catfish

choose parent catfish


C. Selecting Parent
Selected parent usually comes from a special holding pond maintenance or floating nets. Typically, the male parent is separated from the female parent. The characteristics of female and the male parent who has made a good parent as follows.



Quality characteristics of the parent

Female
Aged three years.
It weighed 1,5-2 singk / tail.
Parent enlarged abdomen toward the anus.
Stomach felt smooth and soft when touched.
Cloaca swollen and colored
Skin dark red abdomen flabby and thin.
When around cloaca pressed, will exit
few eggs which forms
round and uniform in size.

male
Aged 2 years
Weighing 1,5-2 singk / tail.
Thin skin and flabby stomach
When massaged, going out semen
white
Genital swelling and color
red

Kamis, 13 Mei 2010

EELS - Eerie Or Interesting ? Fresh Water

EELS - Eerie Or Interesting ? Fresh Water
by: Alex Royal


Next to sharks, eels have to be the most feared and misunderstood fish. Eels invoke thoughts of terror and wanton destruction. This may be because eels are similar to snakes, which also get little love and sympathy. Or perhaps this is another result of Hollywood's simplistic portrayal of this fascinating group of animals. In either case, the fear is unwarranted and one can successfully and safely keep eels in a home aquarium with a little planning and research.

While many people associate eels with saltwater aquariums, there are also freshwater eels, which means customers on both sides of the hobby can enjoy owning an eel.

Freshwater Eels

Almost all freshwater eels belongs to the fish family called Anguillidae and are in the genus Anguilla. There are 15 to 20 Anguilla species including the American eel (Anguilla rostrata). Many of these ells are important sources of food and are commercially grown on farms, especially in Europe.

Few of the Anguilla species are available in the aquarium hobby, however. Probably the most common freshwater eels in the hobby are from the genus Mastacembelidae which are not true eels but classified as spiny eels.The fire and the tire track eels are well-known members of this family available to hobbyists.

The fire eel (Mastacembelus erythrotaenia) comes from South Asia (Thailand through Indochina). The fire eels dark gray to dull black and has red and yellow horizontal stripes that extend from the head to the tail and look a bit like the fire flames painted on a hot rod. This coloration is how the eel got its common name.

The fire eel can reach a length of almost 40 inches in the wild, but aquarium specimens are usually much shorter but still large. This fish needs a large tank with a 55-gallon minimum tank size. Water should be a neutral pH and around 76 degrees Fahrenheit.

As with most freshwater eels, the fire eel prefers to dig and hide in the aquarium substrate. The tank should have a soft sand bottom substrate and flat to rounded rocks without sharp edges under which the eels can hide. Lava rock is not a good choice for an aquarium containing eels.

The fire eel is nocturnal, but can be trained to come out during the day to feed. In fact, a trait common to most eels, freshwater and saltwater, is that they can be trained to eat right from the aquarist's hand. However, eels have poor eyesight and it is not unusual for them to literally bite the hand that feeds them. This is not an aggressive behavior, but the result of poor aim on the part of the eel. Good choices for feed include beef heart, worms and cut fish and shrimp.

Another common freshwater eel is the tire track eel (Mastacembelus armatus). This eel grows large and, in many cases, is mean and aggressive. The common name comes from the color pattern on the sides of the fish that resembles the track of a fire. But this fish may run over any fish that gets in its way.

Most aquarium specimens start at about 6 to 10 inches, but they quickly double or triple in size. Chances are they will start looking at tank mates as swimming morsels of food rather than neighbors. This fish will need lot of room-an aquarium at least 75 gallons-and large tank mates.

They don't seem particular about water quality other than the normal values for nitrogenous waste, neutral pH and water temperature in the mid 70s Fahrenheit. Feeding is easy as they will eat most anything such as beef heart, bloodworms, insects, frozen food and cut seafood.

We hope that this guide was of help to you and your hobby.

THANK YOU...

About The Author
Alex has been involved in the pet industry for over 20 years. Starting in a partnership of a full line pet store, until he opened his own store and expended it to 3 locations. His involvement and sponsorship of various pet clubs as well as donations to a variety of rescue organizations, has helped a number of pets and their owners to enjoy a long lasting relationship. As the result, his extensive experience and knowledge of animals and pet supplies is shared through these articles.

The author invites you to visit:
http://www.e-petsbyroyal.com

Jumat, 07 Mei 2010

Description Murrel fish

Description Murrel fish


Family: Channidae
Indonesian Name: Murrel fish, fish Aruan, fish Ruan
Name Scientific / Latin: Channa striata (Bloch, 1793)
English name: Snakehead murrel

description:
- The form of cylindrical bodies
- Blackish brown
- Bright-colored underbelly
- The side has a ribbon-shaped body '<' that leads to the front
- Including predatory fish, fry food

spreading area: rivers, swamps, reservoirs and lakes



Source: Directorate General of Capture Fisheries, Ministry of Maritime Affairs and Fisheries, 2005

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