Posts Tagged ‘crossbreeding’

Shrimp Breeding vs. Simple Reproduction

Tuesday, February 2nd, 2010

When talking about shrimp keeping, most people talk about breeding shrimps too. But in fact, simple reproduction is not breeding. Breeding means to select offspring to meet criteria for better genes. This also means to reject a great number of shrimplets  which don’t meet the breeding target. A serious breeder will not sell shrimps he rejected; this is an unwritten code of honour. Otherwise, the market is overstock with low quality shrimps.

Mr. Yeh and the Mysterious Taiwan Bee

Sunday, November 15th, 2009

Taiwan Bee, mostly known as black King Kong or Panda shrimp, and their genetical background are controversely discussed in international shrimp forums. Mr. Yeh (or more concrete: Mr. Yeh Chun Ching) claims to be the first holder of these shrimps. He said in an interview held be aquanet.tv in march 2009, that these shrimps showed up in summer 2007 among his Red Bee / Chrystal Red populations. In other sources, he is quoted that they yet showed up in summer 2006.

In a wider public first pictures appeared in Germany in august 2007. A friend of mine showed  pictures in a forum saying that these genus appaered in a line of a friend.

Meanwhile, there are numerous people having mutated offspring in their CR tribes. These mutated CR can be black or wine red, but the possibility to get a (wine red) Red Ruby is higher. In Germany, people talk about a higher coherency in the (Tomataka) Ueno line from Japan. Genes of ‘Golden Snow White‘ (from Red CR) may play a major role in this rare genetic adaption. Everyone interested in further biological background research should look after polyploidy.

In summery, if Taiwan Bee are not a result of crossbreeding (as I have thought for a longer time but diddin’t do now), one can assume that Tiger and Bee Shrimps perhaps have a closer genetical background then we imagined.

Finally, it seems that Taiwan Bee attract a growing financial attention, and fishery industries want to make a fast buck with these shrimps. China, Taiwan and Japan are in competition for a mass production of Taiwan Bee – let’s wait and who will be in pool position soon.

Snow White x Black Tiger

Sunday, November 8th, 2009

Anybody interested in crossbreeding Snow White (f) x Black Tiger (male, black eyes) should have a closer look at the remarks of Uwe Neumann in a German forum. In the F1 there are only a low percentage of shrimp with normal black tiger stripes and white on the back. Most of the offspring looks like normal tiger. Breeding further generation by doing backcrossing might be difficult due to infertility. Pictures are only visible for registered users, text is in German. If you are planning to crossbreed these shrimp, remember that not every ‘Snow White’ has the same genetic background, as Black Tiger have neither!

Crossbreeding Tiger Shrimps

Friday, October 30th, 2009
Blue Tiger Shrimp orange eyes with red stripes

Blue Tiger Shrimp orange eyes with red stripes

In summer 2008 I started my first attempt of crossbreeding Tiger shrimps. My gain was a Blue Tiger shrimp with red stripes. Therefore I have chosen a male Red Tiger shrimp and a female Blue Tiger shrimp (P generation). The female was berried quickly and the next generation (F1) was on it’s way. According tom Mendel’s laws, this F1 generation was homegenous looking and had dark eyes, violett stripes and a bluish-transparent bodies. The dominant genes surpressed other pheotypes and my shrimps looked wildcaught like. I removed the P generation and worked with the F1. Soon the next female was carrying eggs. The F2 showed more variety: some Tiger had slimmer stripes, some hadn’t stripes at all, and two shrimps where blue with red stripes. I stopped my project than and started with Tigerbees. You may want to check photos here.

Crossbreeding Chart of Shrimp

Friday, October 9th, 2009

crossbreeding_table_v1

crossbreeding_table_v1

I have finally found the time to finish my crossbreeding table. This new chart includes not only all kinds of Taiwan Bees (Red Ruby, King Kong, Panda and Blue Bolt) but also the Sulawesi types and the New Bee types. Comments and personal experiences from you all are welcome, as this table needs constant updating and overhauling. So far it is based on my own study and internet sources.

PDF: crossbreeding_table_v1.0


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