In fact, the problem of fish excretion is not complicated, but many friends don’t know much about how fish excrete. Therefore, today I will share with you how fish excrete I hope some knowledge about excretion can help everyone. Let’s take a look at the analysis of this problem!
Table of contents
- The best way to decompose fish poop
- Fish excrement
- How do fish excrement
- How do fish defecate
- How do fish defecate
- Where the fish feces is discharged
One , The best way to decompose fish poop
1. The best way is to use nitrifying bacteria to decompose it.
2. During the fish farming process, the feed eaten by the fish is digested and finally excreted in the form of feces. The excrement of this fish is a kind of organic fertilizer. Fertilizer and water play a certain role in the large water surface breeding process, but too much or in the ornamental fish breeding process will have a great impact on the water quality. Too much feces in the water will be detrimental to the fish and the water quality, so some in the fish breeding process Everyone will try to discharge the fish feces out of the water or let it decompose.
2. Fish excrement
Live in water (freshwater ) environment, animals generally excrete ammonia. Ammonia has high solubility in water. Ammonia and water form ammonium hydroxide. Ammonia and ammonium ions can easily diffuse through water and can quickly pass through cell membranes. These animals can easily use gills, skin, etc. that are in direct contact with water. The organ quickly discharges the nitrogen-containing waste metabolized in the body into the water environment in the form of ammonia, such as freshwater bony fish, amphibian larvae, etc.
3. How do fish excrete?
The rectum of fish It opens into the cloaca, which is a slightly enlarged end of the rectum. Both the ureters and the reproductive ducts open into this cavity. The cloaca opens to the outside of the body as a single cloaca.
4. How fish defecate
1. Fish generally excrete through the anus and cloaca. It is worth mentioning that , most fish have no stomach, so their ability to digest and absorb is very limited, but they are relatively fast and will be excreted after a period of time.
2. Its excrement can be decomposed to produce ammonia nitrogen, which will cause certain poison to fish, so nitrifying bacteria are needed to convert it into nitrate to ensure the health of fish.
5. How do fish defecate
The rectum of cartilaginous fish opens into the cloaca, which is the rectum The end is slightly enlarged, and the ureters and reproductive ducts open into this cavity. The cloaca leads to the outside of the body through a single cloaca. The end of the rectum of teleost fishes has an independent opening, located in front of the genital pore.
6. Where is the fish feces discharged
The fish excretory organ is a cloacal hole, where feces It is discharged from this hole, specifically under the tail fin. It is excreted through the digestive tract. The waste generated by its metabolism is first wrapped in a gel tube and then excreted out of the body. The two parts of the digestive tract and digestive glands
Okay, the article ends here, if the excretion of fish and how fish are excreted are discussed this time. If it is helpful to you, please pay attention to this site
