Arowana Nutrition


The general fish can be divided into stomach fish and stomachless fish according to different digestive systems.The digestive tract of fish can be arranged in order from the mouth to the esophagus, stomach, intestine, but like carp, crucian carp, etc.Most herbivorous fish do not have a stomach, so they cannot secrete stomach acid (gastric acid is composed of hydrochloric acid and some other acidic proteases), and this type of fish is called stomachless fish (gastric fish digestionIt is used for digesting various digestive enzymes in the intestine to decompose food), conversely, fish with stomach organs that secrete gastric acid are called stomach fish, and arowana is such a stomach tissue that can divide stomach acidThere are stomach fish, and this type of fish is usually carnivorous. Different fish species will have different hunting or foraging habits.Generally, the foraging habits of gastronomy fish are mainly based on the sense of smell, while the fish species of gastronomy such as arowana are mainly based on sight and feeling.Officer, these two types of fish with different digestive systems and different hunting and foraging habits naturally have very different nutritional requirements. Just like the difference between a carnivorous animal and a herbivore, the carnivorous arowana, its digestive system is mainly * The acid of the stomach strongly corrodes food and is converted into the energy required by the body, so his intestinal tissue will be lessStomach fish come much shorter, and the nutritional intake is mainly based on animal protein. Animal protein generally contains higher calories, so when the calorie intake of arowana is sufficient, it will not be eaten again.Stomach fishes have a longer digestion process, so the incentives for food intake are higher, so usually these fish will continue to eat as long as they have something to eat.Affecting the situation of not eating, only the temperature of the water changes, and does not eat during the morning and evening breaks. Almost all of them are looking for time to eat, and the situation in the fish tank is different.Therefore, the appetite will increase greatly, and the stomachless fish will be dull, so it will often feed until it swells. In comparison, arowana has a strong stomach organ and is more sensitive to satiety.Therefore, when there is enough heat accumulation, it will often refuse to eat, which makes many arowana owners very envious of goldfish owners.We, because the goldfish owner is under the health condition of the fish, will not be troubled by the fish refusing to eat.In terms of nutritional requirements, arowanas are prey for live animals, and there are some differences between Asian arowanas and american arowanas.The general people think that the main food of arowanas is insects.In fact, this is a misleading DISCOVERY.It is very difficult to eat insects, and it can be said that it can hardly be eaten, so it is still the main food of fish and shrimp in water. Arowana is a large fish. The vitamins and minerals required by large fish when growing up will beCompared with some small fish, the demand is greater, and the body structure is different, and the relative required materials are also different. Arowana is a fish species that is one of the tops of the freshwater food chain. It eats other animals as food predators. Therefore, in the world of arowana, it is relatively important to rely on visual and tactile organs, from its main predatorLets talk about "eyes" and "tentacles"!Most of the areas where Asian arowana or Arowana grow, their water quality turbidity index is either high or very high. For arowana, it is necessary to be able to successfully hunt in areas with higher turbidity, unless the prey is changed.Habit, otherwise it is necessary to develop a highly sensitive sensory organ. In the evolution process of arowana, arowana chose the latter, therefore, arowana has a very keen sense of vision and wave tactileInduction), everything that can move is the prey of the arowana, so the external movement of the arowana will be more sensitive than other fish, which explains why the arowana has a great reaction behavior to the owners movements., Even when there is no * near the tank, the arowana will see the owner approaching and will wait for the owner at a fixed point. This is the best proof of the excellent visual sensitivity of the arowana. In contrast, inappropriate lighting and the environmentIt is easy to cause physiological deviations of arowana, such as eye drop, side swimming, etc. This is the biggest impact on the arowanas physiology from the natural environment with high turbidity to the environment with low turbidity.Secondly, there are many fish farms in order to prevent the body color of the arowana from changing due to external factors, and maliciously make the arowana become a blind dragon from childhood, many people will be surprised at why this arowana has the ability to hunt.?This is the performance of the tactile senses. Arowana can sense the fluctuations in the water and turn to hunt for food. Many fish farms understand this reason, so blinding the dragon will not hinder its hunting behavior. After talking about the sensory organs of arowana, it is necessary to further explore the source of arowana food.Wild arowana can be eaten by the prey almost as long as it can move.It is said that many people will think thatBe convinced, and you will say that everything is eaten now, why Catch you say that the main food of arowana is not insects, but mainly fish and shrimp in the water?The reason why the insects on the treetops cannot be the staple food of arowana is mainly related to the environment. The closest plant to the water surface that grows in water and can grow in the world is only the mangrove forest, which is the plant of the water pen.The growth conditions of food must grow in fresh water and soda water.There is no proper environmental conditions in the native rainforest.Such peculiar plants grow.Only when the water is flooded during the flood season can the branches be brought close to the water.Let insects get close to dragon fish organically, and this period is very short in the annual growth period of dragon fish, and if the insects in the grassland on the shore will become the target of dragon fish hunting, according to the hunting action of dragon fishAnalysis, it is necessary to be able to make the dragon fish jump vertically. It is not easy to meet this condition, so it is not possible to make insects the staple food of dragon fish. At best, it can only be regarded as a snack!For this reason, arowana is still based on fish and shrimp in water, and only fish and shrimp in water can make the size of large fish grow rapidly.The upper-layer swim habit of arowana is not for outside transmission because it has to be eaten.The habit evolved by insects is instead the behavior evolved from eating small fish and shrimp.General small fish shrimp, in their childhood, in order to avoid the predation of various large fish from the water, they are bornIt will be very instinctive * to survive near the water and hide as much as possible in the haystack on the shore, so the dragonfish evolves into an upper-level swimming fish.The main reason is that the food eaten by the dragonfish is swallowed, although the dragonfish isIt is a fierce fish, but it is not like a large fish such as a fierce fish or a toothfish.It can have enough jaw force to tear other fish, so he does not feed on the big fish, but is able toThe size of the swallow is the main one. After analyzing the environmental factors, it is quite certain that the main food of the dragon fish is small fish and shrimp.Based on the analysis of nutrient composition, carnivorous animals need a lot of animal proteins and calcium and phosphorus to help them grow rapidly during the growth process, and insects do not have such conditions.The highest insect content is animalsSex fats and proteins, minerals are relatively scarce. In general aquaculture, our long-term research, animal fats and proteins for fish, can be accumulated in large amounts into fat, but if you want to increase body length, you need toThere is a certain amount of phosphorus and calcium and other inorganic minerals, especially the right amount of phosphorus, which can make the fish body have the effect of accelerating growth.In nature, predators are also food for other predators in their infancy.If the dragon fish feeds mainly on insects, it will not be able to achieve the condition of rapid growth, and will be reduced to other predators food, even the food of dragon fish.Therefore, between the two years of juvenile and sub-adult stage, it is the golden period for the rapid growth of arowana. There are appropriate small fishes in the environment as prey objects. In contrast, the rapid growth of arowana is related.Combining the above two views, Catch is necessary?According to your opinion, the staple food of arowana is not insects but fish and shrimp.The following is a brief description of the various nutrients required for fish (the following information refers to the book "Fish Nutrition and Feed"): 1. Protein: Protein is the necessary energy for growth and maintenance of life. During the process of digestion into energy,It will not be absorbed until it is decomposed into amino acids, and the absorbed amino acids will be synthesized into the desired protein.Therefore, protein is an essential nutrient for the synthesis of protein required by animals and an important medium for amino acids.The main role of amino acids is to allow fish to produce the protein needed for growth and the energy required for exercise and restore the broken tissue protein.2. Carbohydrates: The main components of carbohydrates are starch and cellulose.Food contains a suitable amount of carbohydrates can improve the efficiency of protein utilization, in other words, carbohydrates are auxiliary substances of protein.But carnivorous fish have poor carbohydrate utilization.3. Lipids: Lipids are an important source of energy in addition to proteins, and carnivorous fish have a higher availability. Lipids are also called EFAs, which are proteins that can supply energy to various amino acids.It is an important substance that is converted into protein. Therefore, some fish will accumulate lipids in large quantities when food is sufficient, which is used as the main source of protein when food is in short supply.In the study of lipids, the lack of linoleic acid (18: 2w6) will cause the phenomenon of hindering growth and fading of body color.This substance is lacking in fish, but the content of insects is the highest. This also explains why the dragon fish that eats cockroaches has better body color if its essence is good.: 3w3) will only hinder growth, as for other fat types, for fish, it is not as important as the above two types.Linoleic acid can be obtained from foods such as small fish and shrimp, but if linoleic acid is ingestedExcessive amount will cause excessive accumulation of fat, which is harmful to the fish body but not beneficial. Therefore, it is recommended that insects should not be used as a staple food, but can be used as a necessary side food.4. Vitamins (Vitamins) Vitamins are the main inducement of whether fish can be balanced and grow healthily. If some vitamins are lacking, fish will have various levels of vitamin deficiency symptoms."Fish Nutrition and Feed" a brief description of the problems: 1.Niacin deficiency: loss of appetite, poor motility, gastrointestinal disturbance or edema (but not ascites, but refers to gastrointestinal tissue edema and hypertrophy, which can be found after dissecting diseased fish). 2.Vitamin C deficiency: This type of vitamin deficiency is mainly affected by the recovery of bone tissue and wounds or frequent collision bleeding. The lack of vitamin C will cause: scoliosis, anterior curvature, damage to collagen formation, and variousA phenomenon that is difficult to recover after physical injury.Once scoliosis occurs, the best way to deal with it is to immediately add a lot of vitamin C to the food to prevent further scoliosis.In addition, the lack of vitamin C does not make the fish only refuse to eat or exercise poorly, so most of them will be ignored.Catch himself has such a painful experience, described in the following paragraph. 3.Vitamin B1 deficiency: loss of appetite, muscle cramps (spasms before death), loss of balance, and loss of distance. 4.Vitamin B2 deficiency: Vitamin deficiency can cause turbidity of water crystals (that is, cataracts), loss of appetite, and increase mortality.Therefore, cataracts generally occur. If it is not caused by hexaflagellates or other parasites, special attention should be paid to whether it is caused by vitamin B1 deficiency.This situation will not be inherited.Albino?Hole fish, please pay special attention to this. 5.Vitamin B6 deficiency: Lack of vitamin B6 will lead to loss of appetite, dysregulation of exercise ability, easy tension (nervousness), ascites, shortness of breath, and inhalation of soft gills (inversion).Inverted gill fish is rare, but usually supplemented with B6 or the entire B group can improve and heal. 6.Vitamin B12 deficiency: The lack of B12 mainly reflects the influence of blood structure and body color, and causes poor resistance and is susceptible to disease infections.In terms of blood, it will cause abnormal changes in blood count and blood protein.In large fish, red blood cells can produce incomplete or broken tissues, and a large number of abnormal blood cells appear, in other words, anemia. 7.Vitamin A deficiency (vitamins A and D are fat-soluble vitamins. Among fat-soluble vitamins, the lack of A has a greater impact, and other types of fat-soluble vitamins do not have much effect on fish). Vitamin A deficiency manifests as a marked decrease in growth rate, whitening of body color, congestion of the eyeball and fin base, anemia, liver atrophy, etc. 8.Pantothenic acid deficiency: loss of appetite; gill filaments are rod-shaped, and secretions increase to cover the entire gill slices, causing difficulty in breathing and drooping of the fins.Slow movements. 9.Creatine Deficiency: Gastrointestinal growth is delayed. After dissecting the intestine, the intestine becomes grayish white. 10.Organic mineral deficiencies: According to research, the lack of inorganic substances in fish causes abnormal fish elements including phosphorus, calcium, magnesium, iodine, zinc, manganese, iron, copper, selenium and cobalt.These inorganic substances, our president is a trace element, will contain these trace elements in natural water, fish intake is less problematic, but if you use fish like reverse osmosis or some pure water to raise fish, thenIn addition to the lack of certain trace elements in the food given, problems will occur.In terms of fish, about 80% of the total calcium of the fish body is stored in the bones, and about 10% is present in the skin (containing phosphorus)Phosphorus accounts for 50-60% of bones.General water-soluble trace elements can be obtained by fish, but among all trace elements, water-soluble phosphorus fish are the least susceptible, and the effect of eating high-phosphorus bait is best.The content of fish and other vertebrates is the highest, and the content of insects is the least or not. Especially for the fishes of the carps family, in the case of arowanas, the immediate effect of insufficient calcium and phosphorus is erosion scales, so we often see some fish, Living in the best equipment, giving endless food, but the problem of erosion or obesity is caused by the owners too much love for fish.The lack of other trace elements in the development of Capsicum Red Dragon 35 will also have different effects on fish.Inflammation of the fins and skin can even cause cataracts.Manganese has the highest bone frontal content in the fish body. If manganese is lacking, it will cause abnormal growth of the shank of the fish body, and there will be atrophy. If it is also lack of phosphorus, it will cause bone dysplasia.Copper is mainly present in the liver of fish. If copper is lacking, it will cause weight loss.Finally, cobalt, cobalt is the main constituent element of vitamin B12, when lack of it will cause the symptoms of B12 deficiency.The physiological role of selenium is closely related to the role of vitamin E. When the deficiency is a quasi-element, the fish will only produce muscular dysplasia, and the phenomenon of high lethality of young fish.The iodine present in the thyroid line is an indispensable and necessary substance. If lack of iodine will cause the fish to die. If the water you use is naturally supplied without artificial forced filtration, the above trace elements are almost soluble in water. For feeders who use reverse osmosis, it is recommended that you add trace elements to your water every time you change the water.In the tank, to supplement the trace elements that are lacking after forced filtration, in addition, it is recommended that the feeders use small fish with high phosphorus content as the main food, and insects or other foods as non-staple foods to make the nutrition balanced, so it must be keptThe fish grow healthy.For arowanas over three years, it is recommended to train artificial bait to achieve a balanced nutrition.Arowana Nutrition Arowana Nutritiontongyan red arowana

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