About us
Jack Russell Terrier
JRT Puppy planning
Japanese Tosa
Our 3 Tosa Litters
Rainbow Bridge
Our other pets


July 2022: we are expecting puppies! See our page Puppy Planning

December 11, 2021: Our 13th JRT litter was born! Dessy became mother for the 1st time. 

Juli 26, 2021: Zorah's puppies were born

January 13, 2021: Siri got her 1st litter 

June 5, 2020, Puppies of Zorah x Gino are born, JRT Puppy Planning 

May 15, 2020: 
We're expecting puppies around June 1st 2020 from Zorah! More info at JRT Puppy Planning

April 10, 2020: Little miss Sunshine, called Iva, was added to our JRT pack.

January 14, 2020: Mika's puppies were born, 2 boys and 1 girl!

October 29, 2019: We added a new female to our JRT pack, her name is Dessy el Angel del Corazon, we call her Dessy. 

September 30, 2019: Our puppies are born, 2 males and 3 females. More info at JRT Puppy Planning

August 2019: We are planning a new JRT litter with Hera.  More info at JRT Puppy Planning

December 24, 2018: Mika's puppies were born, 4 boys and 1 girl. 

November 26, 2018
Our Mika is expecting puppies around Christmas 2018!

October 23, 2018:
We are planning our last litter for 2018, if all goes according to plan the puppies will be born around Christmas 2018. More info at JRT Puppy Planning

August 22, 2018:
Hera's 3 boys have moved to their happy owners.

July 2, 2018:
Our Jack Russell Terrier puppies were born!! More info at JRT Puppy Planning

June 9, 2018:
We are expecting JRT puppies in the 1st week of July 2018. More info at JRT Puppy Planning

May 10, 2018:
We are planning a Summer 2018 JRT litter!

November 22, 2017
Our JRT puppies are born! More info at JRT Puppy Planning

October 22, 2017
Jack Russell Terrier puppies expected! An ultrasound confirmed our Zorah is expecting puppies, if all goes well they will be born around November 21, 2017. More info at JRT Puppy Planning

September 2017
We are planning a winter 2017 litter of Jack Russell Terriers with Zorah.
More info on the page JRT Puppy Planning

August 19, 2017
Mika's two boys have moved to their happy owners.

June 20, 2017
Mika's pups are born. It was a somewhat difficult birth and unfortunattely not all puppies survived, but at the end of the day all was well with Mika and she had two healthy sons.

May 22, 2017
Today an ultrasound showed that Mika is expecting puppies! If all goes well, puppies will be born around June 24, 2017.
More info on the page JRT Puppy Planning

April 22, 2017
Mika is in heat so she went for a few days stay with Jack-Tonic World Collection, called Igor

Because we had many problems with our emailaddress info@nihonkoku.nl, our email address is changed to: nihonkoku@zeelandnet.nl

June 26, 2016:
Today Zorah's puppies are born, there are two, a 3-color male and a white / brown female. Zorah and her puppies are doing well!

May 24, 2016:
Today an ultrasound confirmed the pregnancy of our Amazing Little Penelope, called Zorah.
More info at: 
 JRT Puppy Planning

December 18, 2015:
Mika's puppies where born, 2 males and 1 female.. More info under the button Jack Russell Terrier Puppy Planning. 

October 4, 2015:
Mika is Belgian Champion!
At the International Dog Show in Charleroi, Belgium Mika became best Jack Russell Terrier female for the 4th time in Belgium and thus she gained the official title of Belgian Champion!

October 25, 2014:
Conan has been adopted!

October 3, 2014:
Sometimes there are setbacks in life. Unfortunately that now befalls the owners of Nihon Koku's Chokusai, called Conan, and thus also Conan. Due to an illness in the family, after much hesitation and completely beyond Conan's fault, one had to take the decision to rehome Conan.
Conan is out of our C-litter, born on December 27, 2011. He is a big boy, grown up with and very friendly towards kids and people in general. Being a real Tosa male, he can not get along with other male dogs, but is just fine with females.
For Conan we are looking for that very special person who knows how to appreciate the character of a real Tosa and knows how to deal with that.
If you think you are that very special person, please contact us via info@nihonkoku.nl

2013 :
December 14, 2013 : At the Winner Show in Amsterdam Kaya won the title Junior Winster 2013 and Mika became 2nd Excellent in Intermediate class . Great results for these two ladies!
23 October 2013 : A very sad day for us . Today we had to put Kiyo to sleep. In September she suddenly became seriously ill. Together with her we have fought for a month  to pull her through. But sadly we have lost this battle and had to let Kiyo go .
August 1, 2013: Since July 2013 we have a new addition, a Tosa male named Megasthenes Lite the Fuse. We call him Kuma . So now our pack consits of 3 Tosa's  and 1 Jack Russell Terrier . They each get their own page on our site.

December 2012
: After losing Chintarou , Ekira and Yasu in 2011 and 2012 it was very empty in our house, with only Kiyo and little Mika. So we went looking for addition and late December we welcomed a new Tosa female, named Aya od Janusów .
December 2012 in Belgium at Brussels Dog Show Kiyo was best bitch and thus for the 2nd time became Belgian Winner ( 1st time in 2009 ) !
May 2012: Our pack is expanded with a little Jack Russell Terrier female
with the difficult Finnish name Pikkuveijarin Saletisti Natsaa . For convenience, we call her Mika

Winnershow in Amsterdam, november 26, 2011
5 females were present and for the second year in a row Kiyo was voted best female and thus she gained her second official Winner title!


  • November 27, 2010: At the biggest dogshow in the Netherlands, Kiyo became best female and thus gained the title Winner 2010.  This was the only official Dutch title that was still missing in her show career!

  • July 16, 2010: Finally it's official for Kiyo: we received her title of Belgian Champion from the Belgian Kennelclub!

  • June 6, 2010: Great results for Kiyo at the International Show in Tilburg: At the end of the show, in the final judging of FCI group 2, by Belgian judge Roosenboom, Kiyo was placed as eighth of the group. This is truly an exceptional and rare result for a Tosa. Of course we are extremely proud of Kiyo! Earlier that day, at the judging of the breed, judge Roosenboom gave Kiyo qualification 1 Excellent BOB with the remark that he thought Kiyo is a wonderful Tosa.  He gave a fantastic judging report containing the following comments:  Very nice size, great mass, solid built with powerful head of good proportions, strong scissor bite, broad skull with correct muzzlelength, dark eye, small correctly placed ears, typical wrinkles and eyebrows, double dewlap, powerful neck, good withers, firm back, good angulations and good tail, movement typically easy with long step, fine pigmentation, healthy shiny hair and beautiful red / brown color.

  • May 24, 2010: At the Pentecostal show in Arnhem Kiyo was the only Tosa. Judge Hiddes gave her the qualification 1 Excellent BOB with a wonderful judging report, some of his comments: Excellent head and expression, dark eye, complete scissor bite, excellent body, remarkable good muscles, best angulations, goes pretty parralel with very much thrust

  • May 2, 2010, at the Braboshow in Antwerp, Belgium, out of 4 Tosa's Kiyo became best female, thus she gained her last needed CAC to become Belgian Champion. Now we have to wait patiently for the official recognition of that title by the Belgian Kennel Club.

  • April 17, 2010: Success continues for Kiyo:
    At Dogshow Goes in Goes, The Netherlands Kiyo became Dutch Champion. Now she is Dutch Champion, Dutch Youth Champion, Youth Winster '08 and Belgian Winster '09

  • April 2010: In the Netherlands the Tosa has found a breedclub again, by joining the Dutch Akitaclub (NVAI)


  • In January and March 2009, at the shows in Eindhoven and Leiden, Nihon Koku's Bushido became best male and also Best of Breed. He now gained the official title of Dutch Junior Champion  (NJK). He is the 1st Tosa male with this title!

  • Spring 2009 Kiyo achieved at the shows in Leiden and Goes her 2nd and 3rd Junior CAC thus also becoming Dutch Junior Champion.

  • Summer 2009 Kiyo became BOB (Best of Breed) at the shows in Antwerp and in Lokeren in Belgium.

  • November 8, 2009 at the show in Bleiswijk Yasu became BOB. This was her last point needed for the title of Dutch Champion!

  • December 6, 2009 at the "Dogachtigen" specialty show for all mastiff in Den Bosch, were 6 Tosa´s in total, 5 females and 1 male. Two females were in the Champion Class and we had our young Kiyo with us, in the intermediate class. We are proud that, despite her young age, Kiyo was chosen as Best of Breed ( BOB)!

  • December 12 2009 in Belgium at Brussels Dog Show Kiyo again got the qualification Best of Breed and thus became Belgian Winner 2009! 
    This was our last show for 2009.


  • January 1, 2008 at Nihon Koku the 2nd Tosa litter was born, 13 beautiful puppies, 8 males and 5 females. Father  is the excellent Champion Isan od Janusow and mother is our own Champion Megasthenes Ekira.
  • Nihon Koku's Benihime, called Kiyo, came back home and remains with us now!
  • On the 1st official club match of the breed club ADCN in October 2008 Isan od Janusow, the father of our 2nd litter, was qualified as best male by the Belgian judge Rosenboom. From our B-litter the male Nihon Koku's Bushido became 2nd male, besides his father Isan.
  • In december 2008 Nihon Koku Tosa Inu's was very successful at the Winnershow in Amsterdam. Nihon Koku's Bushido became best junior male and best male, which earned him the titles Junior Winner 2008 and Winner 2008. His litter sister, our own Nihon Koku's Benihime, became best junior female and won the title Junior Winster 2008.






Nihon Koku Jack Russell Terriers & Japanese Tosa's | nihonkoku@zeelandnet.nl