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 Omosako

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wayneb

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PostSubject: Omosako   Tue Jan 12, 2010 4:09 pm

The Omosako empire

In the early 1950's Ryuzo Omosako began selling and trading Koi and goldfish at his business site located in Kure, Hiroshima. Now today Koi are shipped by plane in a box with plastic bags filled with water, chemical additives, and medical grade oxygen. However, back in the 50'Sgetting Koi from one part of Japan to another was quite difficult at best. Ryuzo would drive his truck from Hiroshima to Niigata using only small roads, as there were no highways at that point. This 24 hour drive would take him up to the villages near Ojiya, which at the time had only dirt paths. Koi would then be loaded into aquariums he had mounted to a trailer that he pulled back down the mountain. You can only imagine the disaster that may have occurred if Omosako san hit a nasty bump on his way back down south. He would then sell these colorful carp to Koi keepers in Hiroshima, and as a result the Omosako Koi farm was born. In 1974, after having great success in selling Koi, Ryuzo and his son Takashi (20 years old) decided to begin breeding Koi on their own. They built a farm in Tochibara and began breeding many varieties, Gosanke and Hikarimono alike.

In 1980 the Omosako family stumbled on a Shiro Utsuri that they thought might make a very nice Oyagoi (female parent). For its day it had incredible Sumi and great white and they hoped the genetic material would transfer to her offspring. Omosako's hunch was correct and the offspring became ve:y popular amongst the Koi community. Soon after, these baby Shiro were entered into Koi shows around Japan and took many small prizes. This attention was enough to bring Japanese Koi dealers to visit this small farm in Hiroshima to see these special Omosako Shiro Utsuri. Over the next 10 years Omosako became aname synonymous with Shiro Utsuri. The bloodline becoming more established and the word of the Omosako family's treasure becoming better known, and the family was pleased with their accomplishments. There was, however one very big problem ...While their Shiro Utsuri were elegant Koi that displayed ideal properties ofSh iroji and Sumi, the Koi community would never take them else was just "nice".

At the time Shiro Utsuri wouldonly look descent at 60cm124in, and when they reach full size their bodies would balloon up and look like football (the American kind). With many ofthe breeders focusing on large Gosanke, Omosako felt it was his duty to go against the grain and create jumbo Shiro Utsuri. The quest for a new female to add to the bloodline was realized in 1992 when the Omosako family stumbled on Tatsuma, an 84cm/32%in Shiro Utsuri with perfect body conformation. The number of quality Koi to come from the spawning ofTatsuma and the Omosako bloodline is truly incredible.



The hard work pays off
All of the hard work the Omosako family put into developing a high quality, large Shiro Utsuri came to fruition in 2005. The Koi community was in shock and awe when Musashi was introduced to the 37th All Japan Koi Show. There in this blue vat was a Shiro Utsuri that displayed a remarkable balance of high quality, and size and shape. Of course this amazing feat took best in variety, but when Musashi took 8scm/33in Gokugyo (best in size), it meant that Shiro Utsuri could not only compete with Kohaku, Sanke, and Show a at a large size, but prove to be the superior Koi. This kind of judgment was no fluke because shortly after, at the 41st Niigata Koi show, another offspring ofTatsuma would be crowned Runner-up Grand Champion. The following year again at the 38th All Japan Show, Tatsuma's offspring would strike again winning Mature Grand Champion. With several different Koi winning high honors by competing against very high class Gosanke, the Omosako family was satisfied in accomplishing their goal of developing the Shiro Utsuri as a serious Koi type. Tatsuma's impact in producing show-winning offspring is not her only accomplishment, she is now retired and her offspring have taken her place as the premier Oyagoi in the Omosako stable. Musashi, Godzilla, Panda, and Patra all are producing beautiful Shiro. In 2008 the Omosako family brought a new source of blood to the family ... Zebra. Acquired from Sakai Fish Farms, Zebra brings the Omosako family as much excitement as Tatsuma did to the farm in 1992. She is in her second year of breeding and the family is already very impressed with the results. Personally, I am very excited to find what accomplishments the Omosako family may be able to realize with this new spark in the bloodline. The dedication the family has put towards creating this impressive bloodline is truly a gift to the passionate and sometime eccentric Koi community

Extract from Koi Nations magazine.
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PostSubject: Re: Omosako   Tue Jan 12, 2010 4:31 pm

I read on other forum that the keepers are speculating that Omosako did some cross breeding with kumonryu about 15years ago to transfer the diffirent type of white gene of the kumonryu over to the shiro utsuri. Shiro Utsuri apparently always had translucent type of white but in the last few years it has become a pure, pure white. They also refered to the head pattern of the shiro utsuri that has also changed too a much more flowy type pattern or too a more bald head.

Here is a picture of a kumonryu, i can almost see what the koi keepers on the other forum ment.

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PostSubject: Re: Omosako   Fri Jan 15, 2010 12:55 pm

For those that are intrested, here is a excellent document regarding a talk that was done by Takayoshi Omosako at SPKC.

Ref: http://www.sentulpark-koi.com/spkcadmin/forum/showthread.html?p=6560
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PostSubject: Re: Omosako   Fri Jan 15, 2010 1:47 pm

Hi Wayne

Thanks for all the interesting info. I can see that you are a Shiro fan.

wayneb wrote:
Koi would then be loaded into aquariums he had mounted to a trailer that he pulled back down the mountain.

The transport of koi by Omosako reminds me of an article in the Burger during 1988.

Julie 1988, Die Burger

Visse te koop in Kompanjiestuin
Deur HANNES MALAN, Stadsverslaggewer 'n GOUDVISSIE is 'n rustige dingetjie om in 'n sitkamer aan te hou. Baie mense sal voel die ou goedjies se rustige bewegings streel hulle in die gejaagde stadslewe van vandag. Hier kom nou 'n kans om enetjie aan te skaf. Die Kaapse stadsraad verkoop mre-oggend in die Kompanjiestuin hul oortollige goudvissies. Die verkoping begin om 9 vm. en geskied in die geurige atmosfeer van die roostuin. Jy sal jou lengte en kleur kan kies - byna soos gordyne in 'n nuwe huisvestingsprojek - en glo teen billike pryse. Maar jy sal nie meer as drietjies kan koop nie.

[b]Vissie-liefhebbers moet hul eie houers saambring. Miskien sal 'n groot plastiekemmer geskikter wees as 'n glasbolbak wat so maklik breek.

As jy van groot Japanse koi's hou - van so 300 mm - sal jy R70 stuk moet uithaal. Groteres kos R100. As dit duur klink, onthou: in winkels kos die pragvissies baie meer. Die koi is die soetste troeteldiertjies, omdat hulle so mak word. Hulle eet uit jou hand. Jy kan 'n koi ook leer om nader te swem, sodat jy sy kop kan krap. So stil-stil kan 'n koi tot 'n meter lank word en naderhand 10 kg weeg. Hulle word oud en nuuskierig en hou jou altyd uit die water dop. Elke jaar wanneer die visdamme skoongemaak word, word goudvissies verkoop. Gewoonlik in September, maar vanjaar vroer, om hulle 'n langer broeiseisoen te gee. In die verlede het kinders en ma's en pa's byna oormekaar geval om vissies te koop. Kom dus vroeg, want baie kopers is ook vistelers met baie geld. Heel klein goudvissies van sowat 75 mm (3 dm) kos R3 50 stuk; middelslag van 75 mm tot 100 mm (tot 4 dm) R5,50 en grotetjies, van 125 mm (5 dm) en groter R7. Die klein koi'tjies van sowat 75 mm kos ook R3,50 stuk en middelslag (75 mm tot 100 mm) R5,50, maar die groteres, wat al baie nuuskierig is, haal (300 mm) R70 elk. Die heel grootste makkes van langer as 300 mm kos op hul nuuskierigste R100 stuk. Die vissies wat verkoop gaan word, is gister gevang. Party word gehou en vir hulle word die spuitfonteine ook sommer skoongeskrop en waterlelies oorgeplant. Soms word party uitgeruil om nuwe bloedlyne te kry, want met te veel inteling kom altyd probleme - wie wil nou 'n vissie h wat jou nie uit pure nuuskierigheid dophou nie? En wat gaan jy maak as 'n koi na jou vinger hap as jy hom vir 'n krummeltjie middagete nader roep?

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PostSubject: Re: Omosako   Fri Jan 15, 2010 2:22 pm

Hi Paul

Shiro Utsuris have always been my favourite followed by sanke but due to koi shows i tried mainly gosanke.

Since i lost all my koi last year due to ulcers i decided to now try and only keep Shiros....it sounds a bit boring but if one is going to compete at koi shows one can not keep gosankes and shiros together in one pond.

Gosanke needs colour enhancer otherwise they look orange and not red they also need soft water otherwise they develop shimis. Shiros Utsuris again needs no colour enhancer or they will develop hi spots. One must remember that Shiro Utsuri historicaly comes from showa so feeding colour enchancer will bring some hi back. Shiro Utsuri also need hard water with a higher calsium content or they develop sumi that stays underlying which appears gray. In softwater one could wait forever for sumi to surface.

I cant promise that i wont have 1 or 2 gosanke but im going to try and specialise in shiros from now on. I have already acquired 3 tosai with omosako bloodline and Bobby has donated his Supreme Size 3 Shiro Utsuri female which comes from knysna koi farm to me which im going to try breed with in the furture.

The only shiro utsuri bloodlines worth looking at in my opinion is Omosako and Kaneko. Note that i say bloodlines and not breeder. There are a few koi breeders breeding with omosako breeding stock which will give the same caracteristicts as true omosako.

I am also going to see if i can get a few shiro bekkos, so as you can see im doing a bit of research.
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PostSubject: Re: Omosako   Fri Jan 15, 2010 9:46 pm

If I'm correct Shiro Utsuri was developed out of Ki Utsuri that came from Ki Bekko. Showa was developed out of cross breeding Ki Utsuri with Matsukawabake and the hi was finally improved through inter breeding with kohaku.

As for just keeping shiros to stop the secondary hi coming up through color enhancers - well spirulina is an excellent color enhancer - Zeaxanthin is contained in the algae spirulina platensis and enhances the color of hi - so you will also need to keep your pond wall aglae free. If you take a close look at some of the parent koi Omosaku uses you will note the odd secondary hi spot here and there - it's in the genes. He is getting beter I believe but as they grow over 75cm there is always a posibility that it will come up. Your theory also postulates that it will be impossible to keep good showa - as you will need the best of both worlds to finish the hi, sumi and shiro at once - I believe that infact with careful feeding and planning it is possible but therein lies the big challenge of getting a showa to achieve a grand champion award. You should join Bobby and Drikus on a visit to my pond on Sunday - I'll show you something special...

Ogata also produces very nice shiro utsuri at the moment.
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PostSubject: Re: Omosako   Fri Jan 15, 2010 10:26 pm

Thank you for the correction ernst, Living Jewels states that alot of Shiro Utsuri are bred from showa and that that is where the tobi hi comes from but that ofcourse does not mean that that is where type originated from so you may be correct.

As the shiro utsuri bloodline gets more refined the tobi hi should dissappear....i hope.

While showa is on the subject i read that Omosako is now starting to breed with showa aswell.

PM me the details for when on sunday. What type of suprise?
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PostSubject: Re: Omosako   Sun Jan 17, 2010 8:59 am

Ernst wrote:
You should join Bobby and Drikus on a visit to my pond on Sunday - I'll show you something special...

Some photos on forum please.... Fish and pond.
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PostSubject: Re: Omosako   Mon Jun 11, 2012 7:50 pm

wayneb wrote:
For those that are intrested, here is a excellent document regarding a talk that was done by Takayoshi Omosako at SPKC.

Ref: http://www.sentulpark-koi.com/spkcadmin/forum/showthread.html?p=6560

I see we lost the link stated above so i decided to paste the question and answers below.

Quote :
Some Questions and Answers with Takayoshi Omosako at Sentul Park Koi Centre Malaysia in 2007

1. How does Sumi appears, it is by chance?

It is hard to predict how the sumi will come out exactly. We can sometimes predict
sumi coming out from the head but not on the body.

2. How do you know if a koi is good?

Body conformation is the most important. We are confident the rest like sumi will
come naturally for our Shiro Utsuri.

3. At what age does sumi stabilizes?

Sumi pattern changes the most when the koi is tosai and nisai. The pattern will
stabilized when the koi gets older than nisai. To be certain about the pattern, get nisai
or older koi.

4. As hobbyists we tend to have Shiro in the same pond as other variety. Please
comment on feeding colour enhancing food such as spirulina.

We do not recommend feeding any color enhancing food. Since we are specialized in
Shiro Utsuri thus it is easy for us to control. We understand this challenge of most
hobbyists. It is indeed a challenge for us too in producing our future Shiro Utsuri that
can do well even with color food.

5. How do you choose a good tosai?

Shiro Utsuri is a variety that is difficult to predict thus culling is a daunting process.
Sometimes tosai turns all white when they come out of the mud pond. It is really hard
to select which koi to keep and which koi to cull. In general, there is really no such
thing as keeping the good and selling the bad. We can only choose base on the few
fundamental characteristics of a better koi.

6. It was said that higher pH keeps good sumi. Please comment.

Many people push their pond water pH higher to attain better sumi. Our farm has not
done any scientific tests to confirm that higher pH means better sumi. We will test
soon, but we will test more than just the pH. In general, we recommend hobbyists to
grow nishikigoi on a normal basis. There is no need to push certain parameters such
as pH just to grow sumi as these will develop naturally. Golden rule is to keep the well
being of the koi, the rest will develop naturally.
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