Crocodile is a vertebrate, belonging to the reptiles in the vertebrate class. It is one of the oldest reptiles that lived more than 200 million years ago, coexisting with dinosaurs. It is also one of the most primitive creatures still existing today. Crocodile has survived and reproduced due to its strong vitality, becoming one of the oldest living "living fossils" on Earth. Crocodile is classified as an endangered wildlife species and is internationally listed as a Category I endangered wildlife plant and animal.
Crocodiles mostly live in tropical and subtropical waters, with a few living in temperate zones. They are commonly found in rivers, lakes, and swamps, and also inhabit shallow shoals along coastlines. Adult crocodiles often stay submerged in water, with only their eyes and nostrils above the surface. They have keen senses and will quickly dive underwater when startled. They bask in the sun on the water's surface during the afternoon and have bright eyesight at night.
Not recommended for raising
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Bacterial diseases: caused by bacteria such as Pseudomonas, Salmonella, Mycobacterium, and other gram-negative bacteria;
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Viral diseases: such as poxvirus disease, herpesvirus disease, and viral hepatitis;
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Fungal diseases: due to crocodile often living in a watery environment, when the disinfection of the breeding water or other places is not strict, multiple bacteria or fungi can breed in the water, causing crocodile infection. This disease is often caused by a parasitic fungus called Phycomycetes, Zygomycetes, or Ascomycetes in decayed materials, leading to a fungal skin disease;
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Nutrient deficiency diseases: such as vitamin A deficiency, vitamin E deficiency, vitamin D deficiency, vitamin K deficiency, vitamin B deficiency, and rickets.
Crocodile farming surroundings must be quiet, with sufficient and clean water sources, free from industrial pollution, pesticide pollution, and household pollution. The crocodile breeding pond should constantly have fresh water to ensure water quality, while old water is drained into the feed fish ponds, such as tilapia, carp, and catfish, making full use of the waste water from the crocodile breeding pond to ensure ecological balance and environmental hygiene. The stocking density of crocodiles should be adapted to the local conditions, and the stocking density should be carried out according to conventional methods, practicing catching the large and leaving the small. Crocodiles are not resistant to cold, and when the water temperature drops to 15°C, they stop moving. In cold winter weather, the breeding pond should be covered with a thin film and water with a higher temperature should be taken from a deep well and injected into the pond to ensure that both the crocodile and the feed fish can safely overwinter. Crocodiles are carnivorous and have a violent nature, so warning signs must be placed near the breeding pond and others should not be allowed to approach.