Ancistrus: Chăn nuôi và sinh sản

Thảo luận trong 'Cá - Ôc - Tép với bể thủy sinh' bắt đầu bởi Dungnv, 27/10/11.

  1. Dungnv

    Dungnv Well-Known Member

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    Nguồn : What are the origins dell'Ancistrus?
    Today, the fish commonly sold in stores can be classified as the name of Ancistrus Ancistrus sp(3). The undefined name of the species comes from the fact that fish commonly spread aquarium is probably derived from a series of hybridization little operating subsidiaries in the early years of its introduction in aquarium between species, among which probably include dolichopterus Ancistrus Ancistrus temminckii and. E’ for this reason that this fish is often called, not quite correctly, Ancistrus Ancistrus temminckii or dolichopterus. Its features are still very similar to those of the two species which probably originated.
    The Ancistrus dolichopterus is widespread in the upper and middle basin of the Amazon, and basins of the Rio Negro, during the final Trombetas, in the basins of Tefe, Madeira and Tapajos.
    [​IMG]
    There are other types of Ancistrus?
    There are many species of Ancistrus catfish and several species of similar morphology and behavior to Ancistrus, although most of them are not widespread within the aquarium.
    E’ a good cleaner?
    The Ancistrus is one of aquarium fish that have gained their popularity from the habit of sticking to the glass and objects with their jaws scraping algae. Unfortunately this feature, that made this fish known as "cleaner", "Glass cleaner" or "mangiaalghe" has led many people to believe that to have an aquarium bright enough to buy a pair of these fish and throw him into. In reality, as each animal, the Ancistrus has specific needs that can not be neglected if it is to live well and long. The feeding of algae in the aquarium can be only a minimal part of its diet, and it should be noted, however, is that not all species of algae are welcome in these fish.
    How long have you lived a Ancistrus?
    The life expectancy of this species is around 10 years.
    How many of these fish can I keep my x-liter aquarium?
    Gli Ancistrus, like most of the fish belonging to the family Loricariidae, lead a solitary life and have a rather strong territoriality. From young people can live safely in the tanks of growth of livestock or shopkeepers, but as they reach sexual maturity they become intolerant towards conspecifics and may be seriously hurt fighting each other. So it should not take more than one pair (male and female) of these fish in aquariums with a capacity of at least 60-70 l. Alternatively, could raise a bunch of 5 the 6 young people to select after yielding a pair then all the others. This allows you to choose the best subjects. In any case in an aquarium-sized home would not recommend the coexistence of more than one male and one female.
    They can really get hurt fighting each other?
    Not only hurting themselves. They can even kill himself during a territorial dispute. These fish are equipped with retractable pins to hook that would normally not seen because they are hidden in the area of ​​the gills. But when a fish will do harm to a fellow just when it feels threatened or pulls the plugs using them as a weapon. During a fight usually two fish side by side trying to tease each other. In the worst cases it is possible that the fight degenerate and one of the two succumb to a well-aimed blow in the belly.
    In this link you can see two Ancistrus subadults in a typical hostile: In these cases it is important that the litigants do not display ever to attack their opponent's most vulnerable, or belly.
    I could raise one in my aquarium Ancistrus?
    Certainly. This is a gruff and unsociable fish that loves the solitary life in nature. Living alone in the aquarium is not a source of stress for him, although the presence of a companion of the opposite sex would probably be more welcome. The important thing is that spade reared in an aquarium of at least 40-50 l, with a few other fish and environmental characteristics suitable. It seems that not until the breeding fish reared in this way to develop more, arriving to reach a larger size than those given the chance to reproduce.
    How can you tell the sex of Ancistrus?
    The Ancistrus show sexual dimorphism, ie the characteristics that differentiate males from females, from the length of about 5-6cm, which is about 6-8 months of life. The male soft fleshy growths sprout up like whiskers around the snout, that over time can branch out and serve to stimulate egg laying by the female. The female does not develop the growths as the male, although in some cases may be mentioned around the top edge of the mouth, especially with increasing age of the specimen. An indicator is also clear sex dell'ancistrus bristly appearance of the first ray of pectoral fins, coming to look a little hairy in males. Although this feature may be present, to a lesser extent, even in the females.
    [​IMG]
    Ancistrus femmina - đầu
    [​IMG]
    Ancistrus maschio - đầu
    E’ possible to breed these fish in the aquarium?
    Yes. Get the reproduction of Ancistrus is not difficult if the aquarium is prepared properly. Reproduction takes place within narrow cavities, then it is good to objects that can act as a den, so that fish can choose which one to use as nest. To do this go well amphoras, coconut shells broken in half with a crack that would allow fish to access it as a kind of igloo or similar. The Ancistrus tend to reuse the same nest for reproductions.
    [​IMG]
    Ancistrus 'trứng trước khi nở
    How is the playback?
    The coupling is rather rude: the male pushes the female in the den to make it lay. Once laid fertile eggs and the female ends his role and leave the nest. Since then however the male remains in the burrow for most of the time taking care of the eggs and fan with his fins to keep them clean and avoid moldy. It will be released only for short trips in search of food. After a few days the eggs hatch larvae becoming, that clings to the wall where they were laid until the complete absorption of the yolk sac. Then the small fish fry will be able to move independently and eating alone, in and out of lair, after 15-20 days of laying. Leaving all the fry even the male leaves the custody of the burrow back to his normal life.
    [​IMG]
    Ancistrus sau khi nở trứng
    In the picture you see a male of Ancistrus intent to look after the eggs. In this case, the deposition took place on the aquarium glass, but usually, if any, Ancistrus prefer the more sheltered places like the inside of jars or other narrow cavity, where fertilization and protection of the eggs from predators may be more effective.
    We clearly see the yellow yolk inside the shell transparent. The size of each egg is about 2.5mm and are released approximately every deposition 150 eggs. The size may vary according to age and environmental factors of the female.
    Freshly laid eggs, these are fertilized by the male, and so began the development of the embryo inside them. The photo depicts a side eggs on the second day after spawning.
    The hatching rate of eggs is generally very high, and depends on the experience of the couple in parental care and environmental conditions of the aquarium. In hard water the percentage of eggs that is more than moldy.
    The next picture shows the moment of hatching. In this case, the deposition took place on the aquarium glass by exposing the larvae to predation or escape and not allowing a fully effective treatment by the male, However, it is interesting to note the development of embryos inside the eggs, where the dots clearly show through the eyes of blacks who will be future fry.
    You can also see the larvae have hatched in the body that keep the yolk sac of transparent yet intense yellow color. This serves to feed them in the first days of life, to enable them to develop enough fry until they are big enough and designed to move by themselves in search of food.
    Absorption occurred in the yolk sac small fry are about 13-14mm long and already have a color similar to that of adults and total mobility.
    What is the relationship between the pair of Ancistrus?
    The reluctance to social relationships of this fish is also known in the couple's life. Male and female have no apparent link to the outside of the time of deposition. Only during this time the male pushes the female in the den that has decided to use as a nest to stimulate the spawning.
    How should I feed my Ancistrus?
    The Ancistrus are omnivorous but they still need a good portion of plant foods in their diet. Good nutrition should be based on the administration of tablets for fish from sinking fund, which usually contain both animal and vegetable substances. There are also tablets, made entirely from plant, which are still suitable to their power. Should be replaced this food base with natural foods a few times a week, leaves as salad or boiled zucchini washers, do not overdo it with the amount.
    E’ should be noted that the Ancistrus is a nocturnal fish. In order to better respect the natural habits would be good to provide food after lights out. In any case, is willing to feed smoothly even during the day.
    The Ancistrus can see in the dark?
    These fish possess visual abilities rather rare in the world of fishing. They are able to adapt their views to various lighting conditions. In particular, unlike most fish, have the ability to adjust the size of their pupils according to lighting conditions, and have a stretch like a flap that protects their blinkered view of excessive lighting, providing them with an excellent night view is that having a good day.
    The figure summarizes the flap stretch in the dark and light.
    [​IMG]
    [​IMG]
    I noticed that on many different sites, we give hints regarding the breeding of Ancistrus. I raised them to 28 builds, I do well? What is the value of hardness and pH optimum for their?”
    If you want to know of them as a breed Ancistrus for me and for my experience I would tell you that the temperatures given are certainly too high. My over 27-28 degrees cease to reproduce. Always keep them at those temperatures is obviously a stretch. As for the hardness… I will probably heresy, but in fact are quite tolerant and less of them in very hard water is not fit well. My, for example, are at pH 7.5 around and playing normally, with virtually no loss… The important thing is not subject to strong thermal or osmotic stress when they are placed in the aquarium, trying to be as gradual as possible in…
    How can I make sure that the fish they take is an Ancistrus?
    It happens sometimes are dealers competent little about the fish belonging to the family Loricariidae. Many fish in this family that are commonly found on the market are similar to each other when they are young and inexperienced person might be to buy instead of Ancistrus a fish that maybe in a few months becomes 30cm long, creating obvious problems in the aquarium. Usually in business the most common and similar to catfish Ancistrus are Liposarcus, the Hypostomus and Glyptoperichthys gibbiceps. These two species have the character to grow much and not being very suitable for farming in a common aquarium pet.
    Ancistrus
    The tail has a profile almost straight and is edged with white at the ends. The dorsal fin can be sheeted in white.
    The background color of the fish is very dark gray on which there are irregular patches of light gray. In times of stress the background color can be lighter in some areas of the body merge with those of lighter patches.
    The subject represented in this picture is a young male specimen that has not yet reached full sexual maturity. Do you see it around the mouth the first hints of fleshy protrusions that characterize the species.
    In addition to the natural species are widespread on the market a few selected varieties derived from it. There is a selection of long-finned (also called fins icing) albino and a selection of these fish. Both do not exist in nature and are the result of selections made by the men as an ornamental.
    [​IMG]
    Ancistrus - trẻ mẫu
    The albino variety is morphologically the same as natural, but is characterized by a complete lack of pigmentation which gives the fish a whitish color. Even the eyes lack pigmentation and iris is red. This variety is particularly sensitive to excessive light. The albino variety can be coupled with the original species generating an offspring made up entirely of black fish but carry the recessive trait of albinism.
    The finned variety icing instead presents all of the body very elongated fins. This, that some may be considered an element aesthetically interesting, actually make the movements of the fish and less agile, because of its behavioral habits, exposes the animal to frequent injuries to the fins, with an increased risk of infection. In nature it would be a debilitating feature strongly.
    In the picture on the side you see a pair of adult albino with a selection fins icing.
    [​IMG]
    Ancistrus bạch tạng
    Hypostomus punctatus
    The tail has a curved profile, typically form di mezzaluna. The body is more slender than a Ancistrus and the color is distinctly different. Nell'Hypostomus punctatus livery is light brown with irregular spots edged little Net darker brown. The pattern is the same on both the body and fins and tail.
    The sample represented in the picture is young and is only a few cm long. These are the typical size of the fish sold in stores. However as an adult can grow beyond 40 cm and this makes it absolutely unsuitable to be cared for in a home aquarium.
    [​IMG]
    Hypostomus virens - trẻ mẫu
    Glyptoperichthys gibbiceps
    [​IMG]
    Glyptoperichthys gibbiceps
    One of the main hallmarks of this species is very high, rounded dorsal fin.
    The body has a dark gray color with the presence of a yellowish-orange reticolatura
    The fish represented in the picture, like those above, is a young specimen of the typical size that these fish are sold. Although it is widespread on the market is unfit to be raised in a home aquarium, because it can reach a length of half a meter.
    Nguồn: Đại ca nào giỏi In Lich dịch hộ em nhé hì hì
     
    Last edited: 28/10/11
  2. mltk

    mltk Well-Known Member

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    hay quá:x:x:x,dạo này anh Péo có vẻ chăm nghiên cứu quá nhỉ:applause::applause::applause:
     
  3. Blue_Dolphin

    Blue_Dolphin Khách trọ nhân gian

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    An Biên Trang => Gia Định Thành
    Đọc chả hiểu gì cả em ơi! không nên lạm dụng google nhé!

    Thanks,
     
    Dungnv and VKN like this.
  4. VKN

    VKN Well-Known Member

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    Công sưu tầm rất tốt nhưng nếu chỉ dựa vào cụ Google dịch thế này thì đọc tẩu hỏa nhập ma mất em ơi .:-S
     
    Dungnv thích bài này.
  5. haicu?

    haicu? Well-Known Member

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    Đang định nói thì bị 2 anh siêu Éng lịt sửa mất tiu.
    Ông péo này mày mò thì siêu anh ạ! Nhưng ko biêt hiệu chỉnh lại đâu.
    Chết cười! =))
     
  6. melong

    melong Well-Known Member

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    rất bổ ích

    nhưng chắc ở mình không đủ điều kiện nuôi ép thử :D
     
  7. Dungnv

    Dungnv Well-Known Member

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    Hì anh ơi lúc em mò ra trang này thì nó dịch tiếng việt toàn bộ nên ko em ko để ý cái đấy :D

    ---------- Bài viết thêm vào lúc 12:52 PM ---------- Bài viết trước được viết vào lúc 12:50 PM ----------


    Cái trang đấy vào đã dịch tiếng việt roài anh còi ạ em cũng chẳng để ý :D
     
  8. haicu?

    haicu? Well-Known Member

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    Thì ông để chế độ dịch tự động thì anh Gu dịch luôn cho còn j!
    Thấy tiếng Việt là sáng mắt lên!
    hehehehe
    Làm lại đeee...................
     
  9. Dungnv

    Dungnv Well-Known Member

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    Vâng đây em sửa lại roài đấy mời đại ca 2 cu dịch hộ e =))
     

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