FISH CULTURE

fecundity with age. [At] some fish species, [relation/link] of fecundity with age [do] not be [is] same always in the meaning that that age there [is] which [do] not have an in with fecundity , there [is] which [is] its influence a few/little and there [is] also which [is] its influence by positip. Matter like that real correct if which [is] seen [it] only [relation/link] [among/between] fecundity with just age without seeing other parameter. variation [of] of Fekunditas that [is] individual very big, covering each;every influence of[is including also old age. Fish which for the first time [of] breeding ( spawners recruit) fecundity is not big like fish fecundity which have several times but its [is] same body weight. This matter as according to generelizability, that fish fecundity will increase during growth. big fish [of] its egg will be more many from [at] smaller fish. But this correlation there [is] its boundary where there will be degradation of that fish although amount gro

PRINCIPLES OF POND FISH CULTURE 1. Fish are dependent for food directly or indirectly on plants. 2. The weight of fish which can be produced in natural waters is dependent upon the ability of the water to raise the plants. We could increase production by adding plant organic matter produced elsewhere. 3. The ability of water to produce plants is dependent upon sunshine, temperature, CO2, Mineral from soil or rocks, nitrogen (NO3- and NH4-) , O2 and water. 4. The Natural fertility of the water is dependent on the fertility of the soil in pond bottom and watershed. 5. Fertlity of water can be increased by adding inorganic fertilizers. 6. After adding all essential minerals and all available nitrogen, the next limiting factor is CO2. This compound can be increased by adding organic matter followed by liming (Ca, Mg). 7. The next limiting factor in fish production, after mineral and CO2 are provided, is oxygen demand of all living and dead organisms in the water. This can be supplied by ru

Brown algae Indonesia Able to Treat Tumors More recently , Center for Research and Development Center for Product Processing and Biotechnology ( BBRP2B ) Research and Development of Marine and Fisheries ( Balitbang KP ) announces its latest research results . Species of brown algae Turbinaria decurrens ie living in Indonesia is considered capable of killing tumor cells of the cervix. Research that states that the algae or seaweed to treat cancer is not the first time . Previously , the red algae species Rhodymenia palmata and Ulva fasciata species of green algae are also reported to kill breast tumor cells . According to one researcher of such research, Nurrahmi , seaweed rich in compounds called flavonoids that have as an antitumor effect . He hopes to use algae research should be expanded . " Utilization of algae should not be limited to karigin sources , but could be the biological resour

various types of Arowana fish feed feed to be given to the type of fish to be seen , carpenter and eating fish. Arowana is a carnivorous fish species ( carnivores ) and is the type of fish predators ( Predator ) , the feed given should be feed live / meat . feeding should be adjusted to the width of the mouth opening arowana . if the arowana is still small in size should not be given feed that big . The types of feed used for the arowana : A . Frozen worms / blood worms Frozen worms / blood worms given to young fish . the feed is given when the seed is up egg yolks. yolk reserves to feed the fish is the seed before the seed is ready to eat in the wild . 2 . minnow Small fish can be given to the arowana fish beunteur , nilem fish , catfish , fish size variation is adjusted by the size of the arowana to be fed and the size of the Arowana mouth opening wide . 3 . freshwater shri

Maintenance of fish larvae Gurame the maintenance activities of carp larvae things to note are: - Container maintenance - Water quality - Feed - Maintenance / handling Container Maintenance carp larvae of container from the egg is usually placed in the aquarium, but the hatching eggs can also be done in the bucket. for the aquarium with a size of 80 x 40 x 40 cm the number of eggs that can accommodate about 2,000 eggs. water level for maintenance of the eggs in the aquarium 15 cm, the container should also be installed aerator maintenance, heater. functioning aerator to supply oxygen to the aquarium water. This aerator works to increase the oxygen content. oxygen needed by fish to help increase fish growth. fish metabolic processes require oxygen in the growth stage, when the oxygen content in the aquarium is less it will affect the lives of fish so that fish growth is less than optimal. Heater / water heater Different types of heater there is a 50 watt, 7

Betta   fish   can   prevent   dengue fever Dengue fever   caused   by   mosquitoes ,   can be   prevented by   way   betta   fish   betta   fish   is available   in   bottles   we input   into the tub . in the bath   betta   fish   will eat   mosquito larva .   then   after   2-3   days   betta   fish   is removed and inserted   back   into the bottle .   then   inserted   back   into the bathtub   and so on . this is an   effective way   to   combat   /   prevent   dengue fever .   when compared   with the fumigation   may only   kill the   mosquitoes   alone but   eggs   and   larvae   of mosquitoes   in   the water   does not   come   off