Posts about Shrimp Breeding
Shrimp Contest 2023 North America
Judging
It truly is my honor to be part of the judging committee for the North America Shrimp Contest 2023 held in North Carolina. It took me a grueling 18 hours direct flight from Singapore to Newark New York Airport before having a lay over of 3 hours for the next flight around 2 hours to North Carolina. Having travel so far, it is indeed something i was looking forward to meeting the judges, panels and most importantly the breeders that i finally put a face to the name that i was talking online.
It is interesting to note the fact this year contest has lesser tanks but of quality entry. This blog post however is not to discuss about the contest but to discuss on what entails a competition grade shrimp.
For those who are interested to learn more about shrimps prior to joining a contest, these are some tips for you.
First Place Black Ninja
In the beginning we needed to get entries rolling in and that is where we entered a couple of entries.
As i was part of the jury i couldn’t judge this category so that means i wouldn’t be able to give high scores to myself! That is a common rule in the committee that we will not be able to judge for those categories we entered.
i wanted to take this opportunity to highlight here even fundamental shrimps such as the black ninja or black/red crystal category, can still be entered into the contest and showcase your selective breeding methodology.
Over here we can look at the very first important aspects to grading:
Color:
These pictures were taken by a breeder in the US from Kevin Sheppard. As you can see the colors of the black ninja even under intense lighting which is hung no further than 15cm from the top.
Black ninja are generally fairly translucent as their color pigmentations are often not very densely structured. It get worst as they age and may go into different shades such as brownish, red, transparent. To get to a full jet black with size, may take some time and a few tanks to keep selecting. what is important however is starting with a good source, as this will save you a few years.
Colors on legs, and other areas, are they transparent or with colors?
These are some of the areas where we will award additional points if they have them. So to have good colors at a fairly large size will give you more points.
Next in my opinion is about the patterns or Size, for this shrimp, the black ninja has a white mask on the head face area and are they the same throughout. These are some of the areas we look at when we are judging.
Overall Appearance
usually here is more of a homogeneity where we want to have the same size of shrimps form/pattern to denote stability of the shrimp. Also we look at the size ratio in the group. Sometimes over here, we do also look at how difficult is it to attain such a shrimp.
For example:
Black ninja is a reverse cross of the 4 banded PBL, it goes to black ninja and then finally we select it to make it totally black. In other words, when we select from 4 band to Black ninja, we must ensure quality ones as the further down we select it will help. In other words, if we have poor quality with lots of transparency and hoping to select it better in future will add more years to the long process.
- 4 band to Black Ninja one stripe choose the best you can to select next
- Black ninja one stripe to less white choose the best
- Black ninja less spot to full black choose the best
- In breed black and black and select the best.
From this to
this and from this
This
So from here we continue to select for quality of the shrimp and become more stringent in the process of selection.
How difficult is it to arrive at this stage? After i have done it, it doesn’t feel that difficult just need to have good stock, time, an eye for detail and patience.
Level of difficulty:
Depending on the judges experience, and many have difference experiences based on their learning curve. Difficulty of breeding and degree of innovation is different things but similar direction, because the more difficult it is to achieve, the higher the degree of innovation.
Also this is relatively subjective in the sense that i may feel it is difficult based on my experience but may be easy to you. Hence it is important for judges to have a wide range of experience globally and with an eye for details, the quality of the results will be great.
Activity/Health of shrimps:
How are the shrimps looking good? Here we look at individual shrimps and see if there are any deformation or potential deformity that may arise. Is the head to body ratio in accordance to the 1:3 ratio.
How active the shrimps are within the tank and are they looking stress etc? In the next section i’ll share more about breeding for competition.
Breeding for competition
In this section i would not be discussing about selective breeding which i have touched on numerous time on my blog and youtube. However what is important here is that we breed the shrimps with vigor.
Vigor:
It means that we shouldn’t be pampering our shrimps too much yet we give them the care needed to look good and survive well. The fittest survive. Why i say that, is because when we bag our shrimps for competition, the committee will put the shrimps into the tank which has a different tank water than the ones they were being at. So by ensuring the shrimps are strong and rigorous, they’ll need to be kept in such a way that they can withstand a range of parameters.
i did mention this in one of my youtube above absolute vs range. If we are able to keep them in a stable environment but do not chase for an absolute pH or TDS or anything, then as long as they survive well in that range it will give them ad edge over others.
Shrimps generally can survive well between 2-6 GH. Instead of adjusting your GH always so often, a stable tank is more important than chasing a value.
De-vein:
This process is widely known in the fish industry where they stop feeding a day or 2 before the packing process. The shrimps are then net out to an area where they will start to de-vein. This will ensure the shrimps are of great condition when packed and shipped.
Bags:
Breather bags, poly bags, any bags so as long they’re of high quality and process of preparing the shrimps and packing them are done well, they will survive for a long time in the bag. We normally ship with ice pack, due to the heat in Singapore.
What if you don’t do it:
We have seen many shrimp die even before we can judge them or they do not fare as well, also there are various reasons to it, like red shrimps generally have their colors faded during shipping, hence it is important to breed with higher intensity of color to offset some of these small adjustments. For example a darker shade of red will look lighter during stress, but a light shade of red will turn transparent. Remember that shrimp colors are by pigmentation very fine spots, so the more intense the pigmentation or density to size ratio the fuller the color.
Meeting new people:
Of cause all events highlight is really to meet with new breeders and those who are very passionate about the hobby. It is surprising to know that while we are divided far from each other, we share the same passion nevertheless.
What are the differences between them?
Shrimp Breeding Element 2: Breed
Sticking with it
Inbreeding and Line breeding
What works?
A shoutout to the breeder who have asked for this article to be covered, thanks for your support!
According to definition inbreeding is breeding very closely related shrimps with each other such as father-daughter (F0-F1), mother-son (F0-F1) brother-sister (F1-F1). Outcrossing is breeding totally unrelated shrimps or very distance relative, While line breeding is breeding lies somewhere in the middle.
Line breeding as you can see lies somewhere in-between inbreeding and outcrossing and can be understood as a planned inbreeding or a strategized inbreeding.
The purpose of inbreeding is to keep or enhance a certain trait or bloodline such as to continue for example the redness or size of a PRL.
The purpose of linebreeding is to keep the trait of a particular shrimp. For example red legs on a PRL.
So using both breeding method has it’s pros and con because too much inbreeding while can continue or enhance the desirable trait but run the risk of degrading shrimps of deform nature.
Where should i start?
When we first purchase our shrimp from a breeder, high chance the shrimps are closely related, however buying from a bigger breeder the chance of the shrimp being related are further apart.
When the shrimps are closely related, we can assume that they’re most likely brother sisters or cousin or close cousin. That way, we will start with mass breeding them before starting to select.
For example, i have selective took out from a brood 2 males and 3 females to selective breed, they are closely related cousins as i control the males that i use from 2-4 depending also on the number of females.
When close cousin breed, they will firstly continue the desirable trait but will not really enhance the trait and with mass breeding, the idea is to get as many shrimplets as possible in the shortest possible time. From there lock in after a few generations the desirable trait you would like and then start inbreeding.
When should it end?
We can safely assume when we purchase shrimps from a breeder chances are the shrimps are very closely related unless the breeders keeps multiple tanks of the same parentage and keeps a strict breeding methodology.
As you can see in the example if we start off with a pair and slowly breed them to masses and then when we have our shrimplets (also helps to prevent too much inbreeding as male as small as 0.8cm can fly), it is important to remove them. The whole idea is to create 2 lines and relative or half/brother/sister (cousins). This way it will help pass on desirable trait and minimize undesirable trait when half brother/sister mate and at the end of the continuum if one would like to inject yet another desirable trait, an outcross can be made when you purchase the same line from the same breeder as we can safely again assume they are distant relative.
This PRL has been inbred (crossback) to maintain the desirable trait of size and redness. Now i’ll start breeding to a good number and split into two tanks so that i’ll have cousins. It takes almost 2 years to get to this stage.
selective breeding “Be All End All”
Selective breeding takes time, years and years of consistency but many give up before results are seen. Selective breeding is the Be All End All in raising the quality of the shrimps.
This can be modified depending and minimally you’ll need 3 tanks to get to the desirable trait, i have expanded the number of tanks to split out the improvement tank and championship tank.
Main Breeding tank: when we start breeding 2M 8F of decent quality, this tank will continue to breed for shrimplets.
Shrimplet tank: this is where we will house all the shrimplets and once you have decent female, put it back into the main breeding tank. Over time you will find that there could be 2-3 good males and 10 good females, you can then take them out and put into the improvement tank.
Improvement tank: Strict inbreeding happens, and then the shrimplet can be scoop out into another shrimplet tanks and then the process above continues and then get to the championship tank which would probably be your goal to get there.
However, when you get there, the shrimps are fairly inbred, so now it will be good to split the tank into two and then get cousins so that the genetics pool do not get too similar.
Hope it helps! If not drop me a PM in messenger facebook and i can clarify any questions 🙂
Lighting and it’s importance
Water Parameters Hard Value
I split water parameters into two different large category namely the Hard and Soft parameters.
This post is a follow up of the previous one where i touch on water parameters. This will help to provide a clearly picture of what it meant to have both hard and soft water parameters and the importance of it.
Hard water parameters are those that most of us use test kit to measure, this is where the hard values are tested and indicate a value corresponding to either acidic, dissolved solids etc.
How does grazing material impact the breeding process
It is becoming difficult to ignore the fact that grazing material is one of the key elements for successful shrimp breeding process. It can be understood from the abundance of available grazing material to ensure continual breeding to happen. Shrimps like in the ‘Animal Kingdom’ breed when the conditions and environment are ideal. They thrive and procreate their next generation. In their natural habitat, shrimps feed consistently all the time. While their ‘hands’ are constantly feeding they’re trying to pick up the biofilm and consume them. Biofilm is an important source of nutrients to shrimps as they consist of nutrients that can be absorb naturally by the body. In this day and age, high quality feed is made to create as much beneficial nutrients to the shrimp. However, according to some research (Importance of biofilm as food source for shrimp), the feed they use although ingested were not properly incorporated by the shrimp tissue. In other words, it appears to suggest that while we may feed our daily feed, there are still some nutrients that must be compensated through biofilm consumption.
The term grazing material really encompass a large area but what i would like to share in this article is while most grazing material are used, it is the biofilm they produce that have a direct impact to shrimp overall health and breeding. Biofilm grows almost anywhere, and it is not simply the biofilm that is the important intake, it is also the microorganism that the shrimp consume. With an abundance of microorganism and biofilm, that is where the ‘invisible’ nutrients are playing a major role of the breeding process.
Growing biofilm
There are many ways to cultivate biofilm such as leaves, cholla wood, media, plants, mosses and microorganism ball aka Kallax ball or lubao.
Leaves such as Indian almond are good source of biofilm generation, the leaves soak in water will start developing thin layer of biofilm for the shrimps to consume, however the leaves will not be able to consistently produce biofilm as the leaf tissue are consumed together with the biofilm by the shrimp.
A wide variety of biofilm producer is ideal, and personally i’m using plants, mosses and definitely the lubao or kallax ball.
While one cannot directly see the impact of shrimps consuming biofilm, however there are research paper that is done scientifically that natural food for shrimps are biofilm and is the key that allow shrimps to continue their existence.
Biofilm, female shrimps and shrimplets
If one have put leaves in the tank or have use Kallax ball or lubao, it can be observed that during the conditioning phase of breeding (saddle), they can mostly be found near biofilm source. When female shrimp berried, it is often seen that they are on the biofilm generation such as lubao in this case when i use them. While shrimp feed are fed daily, the female shrimp continue to graze on the lubao very frequently more so when they’re not berried. This observation is seen across many tanks when female shrimps berried.
Another observation and reported by many who have used lubao is shrimplets find their way to the biofilm source and graze for the first few weeks of their live and then move on to other food source. The constant biofilm allows females and shrimplets in my opinion benefitting the most out of it.
With the above, it in turn help to encourage females to saddle more readily and directly improve shrimplet survival by providing first food.
Long term impact
The long term impact for having a consistent biofilm source in the tank outweigh the risk of deformity and degrading, and hence important to have different sources of biofilm readily available in your tank. Like i’ve mentioned, every surface area in the tank is able to harbour some biofilm but the more direct source it is, the more you’ll be able to control.
While we may not be able to see any impact immediately, biofilm is still an important source of grazing material/nutrients for the shrimps and if you’ve not considered them before, i hope this article would allow you to wade deeper into the water and learn more about the intricacies of why biofilm is an important source of nutrients to shrimps.
Thanks for reading and keep believing!