With superior carp seeds, the possibility of getting quality crops increases. Superior carp seeds can be obtained from trusted fish seed cultivators or from high quality goldfish parents with superior genes.
Do you already know how to choose superior quality carp brooders?
Before knowing how to choose one, let's review the advantages of using superior quality goldfish, namely:
Therefore, you need to do a selection of goldfish broodstock before spawning.
One of the characteristics of the ideal parent fish for breeding is goldfish that have a body weight of 6-12 kg. In addition to body weight, you also need to pay attention to the physical condition of the goldfish (organ completeness, gonadal maturity level, body weight, etc.) and try not to stress the fish before spawning.
How to choose a goldfish parent starts from knowing the characteristics of high-quality prospective broodstock. The total fecundity produced by quality carp brooders is quite a lot, namely 15-20% of body weight. The large number of eggs is very profitable for carp cultivators.
The following are the characteristics of the best quality goldfish broodstock:
You also need to know the characteristics of the goldfish parents for each breed specifically, both male and female parents. This is to ensure that the fish breeders are suitable for spawning.
The following table shows the characteristics of the goldfish according to their sex.
|Female Goldfish Mother||Male Goldfish Mother|
|Minimum 1.5 years old||Minimum 6 months old|
|Minimum body weight of 1.5 kg||Minimum body weight of 0.5 kg|
|The texture of the abdomen is soft and swells to the back||When the stomach is pressed, sperm comes out|
|The urogenital opening is reddish||Agile movement|
|The body is thicker than the male sires||The genital opening is not prominent|
You can prepare the main goldfish since the fish are still 5-8 cm in size or 8-12 cm in size. The trick is when you get a fish of that size that meets the characteristics and characteristics of potential carp brooders, then you can separate the fish into your own brood pond.
After the prospective sires grow up, carry out a feasibility check on the sires based on secondary characteristics such as the level of gonadal maturity. If all the criteria match your needs, you can also use the goldfish as a goldfish parent.
The last factor in the selection procedure for goldfish broodstock is the parameter of the maturity level of the broodstock gonads.
There are 2 ways to check the maturity level of the gonads that can be done. The first method is checking microscopically to observe the gonadal cells in the broodstock. The second way is to look at the condition and size of the gonad itself in the goldfish parent.
The following parameters are used to determine the maturity level of the gonads of the main carp:
To find out the maturity level of the goldfish broodstock in each broodstock, you can do the TKG procedure or procedures to find out the development of the gonads before and after the broodstock spawn.
The following is the TKG procedure and its indicators for male sires:
The following is the TKG procedure and its indicators for female sires:
To facilitate the selection of goldfish parents, you can mark prospective parents who have good characteristics and criteria by cutting their fins or placing earrings. That way, you don't need to be afraid of choosing the wrong broodstock when the prospective sires are still in the same cultivation pond as other fish.
Ideally, you prepare at least 30 goldfish brooders to be spawned with a ratio of male to female broodstock of 3:1 or 3:2. With these numbers and comparison ratios, sires can spawn during the mating season.
However, you need to ensure that the brood stock used is obtained from spawn that is different from other prospective broodstock. The goal is to avoid interbreeding. Therefore, when the parents produce quality seed offspring that will be used as potential broodstock, the goldfish parents and their offspring must be cared for in separate places to maintain gene quality.
Cross-breeding between siblings needs to be avoided because the fish seeds produced will experience a decrease in the rate of growth acceleration up to 20%, decrease in body resistance to diseases and viruses, and decrease in the success rate of hatchery. The long-term impact, interbreeding between siblings will create a decrease in the growth of 5% for each generation.
Even though already using race or strains superior goldfish, if you don't know how to properly care for goldfish broodstock, then it will be difficult for goldfish to spawn.
One thing that needs to be considered is the goldfish feed that is given when the main carp is spawning. You can provide pelleted feed with a protein content between 20-25%. Apart from pellets, you can provide natural food such as earthworms.
So that the fish feed can be spread evenly throughout the spawning ponds, you can use eFeeders from eFishery.
eFeeders is a smart feeder for fish that can be controlled remotely using the application on smartphones. Through this application, you can control the duration, distance, frequency and amount of feed that is thrown. That way, the feed can be spread more evenly and the goldfish won't even be fighting over the food!
Let's use it eFeeders 5 so that the feed is more even!
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The criteria for prospective goldfish parents are healthy fish aged 1.5-3 years, have a physical condition without injuries or defects, large scale size, proportional body shape and size, and have met the maturity level of the gonads.
Parameters of gonadal maturity level for goldfish were ovary shape and expansion in the body cavity, ovary size and color, egg size, egg shape and color in the ovary, and egg diameter size.