Kekurangan dan kelebihan kolam tanah dan kolam tembok dalam berbudidaya ikan

Kekurangan dan kelebihan kolam tanah dan kolam tembok dalam berbudidaya ikan

di sini akan dibahas kelebihan dan kekurangan kolam tanah dan kolam tembok dalam kita membudidayakan ikan.

kelebihan dan kekurangan kolam tanah
Membudidayakan ikan pada kolam tanah mempunyai beberapa kelebihan diantaranya yaitu : biaya yang dikeluarkan untuk mencetak kolam relatif murah, pada kolam tanah akan membantu penyediaan pakan alami untuk ikan terutama plankton, proses perombakan sisa pakan dan metabolisme bisa terjadi secara alami. kekurangannya yaitu kondisi kolam tanah rentan terhadap terjadinya kebocoran kolam akibat hewan perusak seperti kepiting, dan akibat tekanan air dari dalam dan luar kolam, terutama apabila hujan deras, pada kolam tanah sulit untuk mengontrol hewan predator, sulit mengontrol debit air yang masuk.

kelebihan dan kekurangan kolam tembok
kelebihan berbudidaya pada kolam tembok yaitu, kolam tembok tahan terhadap kebocoran akibat hewan, tahan terhadap tekanan air kolam, memudahkan dalam pengontrolan air dan hewan pengganggu, kualitas air bisa dikontrol lebih cermat. kekurangan dalam berbudidaya di kolam tembok, penyediaan pakan alami pada kolam tembok lebih sedikit, proses penguraian alami sulit terjadi, biaya yang dikeluarkan untuk mencetak kolam tembok lebih mahal.

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Can Fish Oil Give Beautiful Skin?

Can Fish Oil Give Beautiful Skin?
by: Larry L. Taylor

Can fish oil give beautiful facial skin? Studies have said yes. What make fish oil so good for the skin and for our health?

Some people are skeptical about the benefits of increasing our intake of omega-3 fatty acids. Scientists are trying to explain exactly why a single nutrient would be so important to our health. They have many theories. Some are more unusual than others. For example, the “water-dwelling ape theory” is a bit unusual.

But, regardless of how or why it happened, many of the body’s systems are dependent upon omega-3 fatty acids. Without them, we suffer from symptoms minor and serious.

Taking fish oil for facial skin dryness is one of the minor or less important benefits, but for someone that suffers from excessive dryness, it is very important. So, it’s all relative.

Having beautiful facial skin may seem like simply a matter of aesthetics. But, we know that a healthy, well-nourished body glows.

While there are a number of things that we don’t understand about “why” omega-3 fatty acids are so important, we do understand why they are important for moist, soft, healthy and beautiful facial skin. It has to do with the composition of sebum.

Sebum is the skin’s natural moisturizer, lubricant and protector. It has slight antibacterial activity, too. When people suffer from excessive dryness, it is due to decreased production of sebum, which is primarily composed of fatty acids.

The benefit of taking fish oil for facial skin tightening undoubtedly has to do with improving the skin’s moisture content, but something else must be going on, too. Researchers have yet to discern what that “something” is, but they have seen a 10% improvement in firmness after only three months of daily supplementation.

Other nutrients are important to beautiful facial skin, too. Protein is needed to build new cells and fibers. Vitamin C is a necessary co-factor for strong elastic fibers. Deficiency in the vitamins A or E is associated with acne, eczema and other unwanted conditions. So, we can’t say that taking fish oil for facial skin will solve all of your problems. It’s just a good idea.

Because of all of the other health benefits, which include a reduced risk of heart disease, type II diabetes, arthritis and other age-related conditions, supplementation is a really good idea. It might be possible to get enough vitamin A, C and E through diet alone. It’s pretty easy to get enough protein, too. But, the modern diet has been stripped of omega-3 fat. Researchers believe that is the cause of what they refer to as “modern illnesses”.

Personally, I consider beautiful facial skin a bonus. My primary interests have to do with my long-term health. But, the short-term benefits have been important to me, too. Before I started taking fish oil for facial skin improvement, I frequently suffered from bouts of depression and anxiety, but not anymore. So, stop being skeptical! Look better and feel better with omega3 fish oil

And now please visit the XtendFishOil website listed below for updated information on fish oil for beautiful facial skin.

And now I would like to invite you to visit http://www.XtendFishOil.com for FREE Instant Access to a very helpful newsletter that will keep you updated on skin care, nutritional supplements and other health related issues. And I have more information on Omega3 Fish Oil and Facial Skin available at http://www.XtendFishOil.com

About The Author
And now I would like to invite you to visit http://www.XtendFishOil.com for FREE Instant Access to a very helpful newsletter that will keep you updated on skin care, nutritional supplements and other health related issues. And I have more information on Omega3 Fish Oil and Facial Skin available at http://www.XtendFishOil.com


The author invites you to visit:
http://www.XtendFishOil.com

Article Source:
http://www.articlecity.com/articles/health/article_8653.shtml

Spawning behavior of fish

Spawning behavior of fish


As known that the reproductive activity can be divided into three phases ie pre-spawning phase, the phase of spawning, post-spawning phase. Based on this, the fish's behavior can be divided into the behavior of pre-spawning phase, fish behavior and phase behavior of spawning fish at post-spawning phase. Reproductive behavior is closely related to the nature of the fish itself. Is the fish protecting its offspring or not. Behavior of the offspring of fish that can be said to maintain relatively more variations than the fish ovipar, especially post-spawning behavior.

Various kinds of fish behavior in pre-spawning phase of which is: foraging activity, migratory, making nests, the secretion of pheromones (the introduction of the opposite sex, looking for a partner), seduction movements and others.

The behavior of fish in spawning phase of which is: Along with the expense of sexual products of fish that have to do touch the body parts, exotic motion with vibrating throughout the body, wrapping the body movements of fish or fish male female by the male fish, fish eggs by storing the male or female fish into the nest, cave, part of the body, the foam, plants and others.
Fish behavior in the post-spawning phase of which is to improve the closure of the nest, guarding nests containing eggs or fertilized eggs that are developing, away from spawning areas and others.

All the fish's behavior is resultante number of motor stimulation of the external stimuli and internal stimuli derived from the secretion of hormones, while external stimuli come from a variety of sources such as environmental factors, chemicals and etc., which are mediated through the sensory organs of the visual. Once the fish showed an actual action is a dynamic phenomenon, including the behavior of "hibernation" and "aestivasi" summer.

In addition to the functions in the regulation of behavior, hormone systems also regulate the development of secondary sexual characteristics are closely related to the interaction behavior. Which plays an important role in secondary sexual characteristics is produced gonadal steroids. This includes the body in spawning coloration as mate attraction, competition between the male fish, maintain reproductive isolation and structural forms in the body that includes the emergence of a kind of acne on the head during spawning, such modifications gonopodium fin fish including the nature of family poeciliidae sexual steroids affected fish.
Source: M. Ichsan Effendie, 1997

Mineral

Mineral

Mineral substances needed by fish include calcium (Ca), phosphorus (P), sodium and chlorine (in the compound NaCI), manganese (Mn), iron (Fe), copper (Cu), iodine (I), and cobalt (Co). As with vitamins, minerals are needed by fish in a number that is not too large.

Calcium (Ca) and phosphorus (P) is required for bone formation / growth and to keep the body tissue function can work normally. Sodium chloride (NaCl) affected the growth, but its use is recommended not too much. Iron (Fe) is required for the formation of red blood cells, while copper (Cu) assist in the use of iron by the body. Iodine (I) is required for the production of thyroxine (a hormone timid) and manganese (Mn) influential in the process of ovulation / reproduction.


Source: Ir. M. Firdaus SAhwan, M.M. 2001.

Calcification and tilapia fish pond fertilization

Calcification and tilapia fish pond fertilization

These activities carried out after the pool dried for three days. drying function to turn off the life cycle of pests (predators, contender and destroyers) and to improve soil structure and texture in order to become fertile and friable.

bottom salinity done before Calcification activity and purpose of fertilizing ponds to kill germs. The salt used is krosok salt (NaCl). Calcification is to increase soil pH, lime is used the Dolomite lime (CaCO3MgCO3). the amount of salt and lime are used, each for 50 g/10M2 to the pool wall and 1.5 kg / 150m2 of land to ponds.

pond fertilization carried out in order to grow natural feed. use of fertilizer manure (chicken manure) for 2 kg/10m2 to pool walls and pool 30 kg/150m2 to land. lime and fertilizer salts were scattered evenly over the bottom surface of the pond.

Alaska Salmon Fishing: The Most Memorable Alaska Salmon Fishing Trip Opportunities You Ever Have!

Alaskan Salmon Fishing: The Most Memorable Alaska Salmon Fishing Trip Opportunities You Ever Have!
by: Jack Bendega

The reason why Alaska Fishing becomes angler’s most to dream is because Alaska’s oceans, rivers, and lakes are teeming with huge runs of record breaking Salmon, Rainbow Trout, beautiful Arctic Char, barn door Halibut and many other challenging sport fish.

The weather conditions in May and June can be great for salmon fishing because of straight sunshine for more than thirty days. Apart from fishing in Alaska you can also dig clams, search for octopus, collect mussels and investigate for jellyfish, sea urchins, starfish, jumping jacks, periwinkles and much more during low tide.

Alaska Salmon Fishing Trip

Alaska salmon fishing trip is one of the more favorite trips in Alaska. There are different types of salmons – king salmon, red salmon, silver salmon, and pink salmon. The king salmon usually weighs between 20 and 40 pounds, but they can sometimes weigh over 100 pounds. You can fish them all year round in either freshwater or saltwater with or without fishing boat.

There are many methods to catch king salmon, silver salmon and pink salmon. Sometimes the techniques still depend upon the time of day, water, tidal conditions, and position on the river. You can catch them with back-bouncing hooks (baited with king salmon eggs), back-trolling Spin-n-Glow (propeller is connected to a hook baited with king Salmon eggs) and back-trolling banana shaped plugs (baited with herring or even without).


Fly-fishing is also possible for catching a salmon, but it is perfect to have clear water for this choice. While using flies is the best way to catch red salmon.

Alaska Salmon Fishing Lodges

As a world-fishing destination, Alaska salmon fishing lodge offers unspoiled beauty, quality accommodations, fine dining, the comfort, incredible fishing, best equipped and the best guides, and some of fishing lodges offer fishing in as many remote streams.

If you are planning a fishing vacation in Alaska, make sure that you plan it well in advance. There are plenty of guide services that will be able to help you but some of them tend to fill up rather quickly whenever the salmon are running. Make sure that you hire a reputable guide service to get you out on the water and catching fish in the shortest amount of time possible.

In the cold winter months, you should dress extremely warmly. In other seasons, dress in layers so that the sudden shifts in temperature can be accommodated as you fish all day or over the course of a week or weekend. Alaskan salmon fishing is going to provide you with some of the most memorable fishing opportunities that you will ever have in your lifetime.


About The Author
Jack Bendega’s Alaskan fishing guide. Providing the best and up-to-date tips, information, questions and answer on Sport fishing in Alaska.


The author invites you to visit:
http://fishingalas-ka.com



Article Source:
http://www.articlecity.com/articles/recreation_and_sports/article_3749.shtml

pengapuran dan pemupukan kolam ikan nila

pengapuran dan pemupukan kolam ikan nila

kegiatan ini dilakukan setelah kolam dikeringkan selama tiga hari. pengeringan berfungsi untuk mematikan siklus hidup hama (pemangsa, penyaing dan perusak) dan untuk memperbaiki struktur dan tekstur tanah agar menjadi subur dan gembur.

penggaraman dasar kolam dilakukan sebelum melakukan kegiatan pengapuran dan pemupukan kolam tujuannya yaitu untuk membunuh bibit penyakit. Garam yang digunakan yaitu garam krosok (NaCl). Pengapuran dilakukan untuk meningkatkan pH tanah, kapur yang digunakan yaitu kapur Dolomit (CaCO3MgCO3). jumlah garam dan kapur yang digunakan masing-masing sebesar 50 g/10M2 untuk kolam tembok dan 1,5 kg / 150m2 untuk kolam tanah.

pemupukan kolam dilakukan dengan tujuan untuk menumbuhkan pakan alami. pupuk yang digunakan yaitu pupuk kandang (kotoran ayam) sebesar 2 kg/10m2 untuk kolam tembok dan 30 kg/150m2 untuk kolam tanah. garam kapur dan pupuk ditebarkan merata di atas permukaan dasar kolam.