In this Diary I will report the results of the cross between Cow Ranchu and Black Ranchu in this video:

The black is actually an offspring of my previous Cow Ranchu (Milk Cow Variant). Let me show the results and I will compare them with the offspring of Cow x Sakura reported in the previous diary (#4).

Here are the offspring:

The first category are fishes with large black markings in the shape of large blocks / islands. In these results they have red color. If they are free from the red color, they will come close to true Cow Ranchu, I think. At least when being watched from the top. Interestingly, from the side viewing, the black markings extend to one side of the body (sadly, only one side) to appear like large belts.

I think this is an interesting phenomenon. The project can be directed to create Cow Ranchu and Ranchu with Belts.

This one also has a belt in one side of the body, but the black marking does not extend to the top of the body. I will put this in the same class as category one, I think.

All these four will be in my breeding plan.

This is the 2nd category. It has lots of black marking, in the shapes of large blocks and dots. But the black marking does not produce a belt appearance. It is more towards irregular pattern. It can be considered as calico with lots of orange color. I am still undecided whether to use this in the project or not.

This third category is also interesting. They are close to the pattern of snow leopard, except that the snow leopard does not have blue and the black dots are smaller and many.

The fourth category resembles calico but a weak one. The blue and white are dominant while all the other three color are minimal. I do not think I can use them to propel this project.

The fifth category is the almost white fish. I notice that the black color is stubborn, though minimal.

This sixth category is the Sakura. Once again, the black color still appears in a minimal proportion.

And the last category is the black color. They always come out from the Milk Cow crossing. Of course, I will use them as my main ingredient in this project.

So, to compare with the Cow x Sakura, let us examine this table:

In the cross with Sakura, we do have offspring #4 (left) which has beautiful proportion between the red and white color (roughly 30% – 70% or 40% – 60%). This is different from #3 (left) which is dominated by red color. And #4 has no trace of black pigment. We do not see this variant in the Cow x Black offspring.

The offspring that comes up only from the Cow x Black are the #1 (right) and #3 (right). Yes, the cow / belt variant and the (somewhat) snow leopard variant only appears in the cross with black. I find this finding interesting.

The beautiful calico variant only appears in the cross between milk Cow and Sakura. This is also a thing to ponder.

The black appears on all of the crossing.

I think there is a lot to think about from this observation. I will make my next breeding plan based on this information. Tell me if you find any interesting interpretation to this information.