Snapping turtles are also known as alligator turtles, alligator turtles, meat turtles, and American snake turtles. The Latin name is Chelydraserpentina and the English name is Americansnappingturtle. It belongs to the Snapping Turtle Family and Snapping Turtle. There are two kinds of this section, namely, large snapping turtles and snapping turtles. Snapping turtles originate in the United States and began to be introduced in 1997 in China. At present, a small number of farmers have been feeding in East China and South China. No report of artificial reproduction has yet been seen. Snapping Turtles have a simple environment for rearing environment, strong adaptability to temperature, no cold in winter, natural hibernation, no fear of heat in summer, strong disease resistance, and fast growth. Because the Snapping Turtle's plastron is very small, it is only a small armor or less than 1/2 of the carapace. Therefore, it is the highest type of turtle containing meat, its delicate meat, taste delicious, high nutritional value. Therefore, the prospect of artificial breeding of snapping turtles is promising, and there is great potential for future development.
(a) Ecological habits
In the wild, Snapping Turtles are aquatic turtles that live in freshwater, such as lakes, rivers, swamps, and pools. They can also live in salty waters with low salt content, such as harbors. Hi in the water in the sand, shrubs, weeds. When the snapping turtle floats in the water, it is not easy to be found with its protective color on the carapace like a piece of rotten wood floating in the water. It often sticks its nose out of the water, and its head does not fully extend. Snapping Turtles like to be in the water during the day, lying on the wood or stones, and sometimes floating on the water. Sometimes they have four legs facing up and their backs facing downward, but their heads are facing upward. The turtle began to crawl in the night. Snapping turtles are not afraid of the cold and are not hot. Ambient temperature above 18 °C normally feed; 20-33 °C is the best activity, feeding temperature; 34 °C less moving, Fu in the bottom and the summer in the sand; 15-17 °C fashion can be a small amount of activity, some turtles Can eat food; hibernate below 15°C; hibernate below 10°C.
(B) Behavioral habits
Snapping turtles are the most ferocious species of turtles. Adult snapping turtles are aggressive and can attack people actively. 20-40 grams of larvae are more gentle and do not take the initiative to injure others. When something moves in front of the turtle and shakes, the turtle first shrinks his head into the shell, waits for a timely opportunity, suddenly sticks his head to bite, and then shrinks his head back into the shell, and so repeatedly. When the turtle is caught, the body of the turtle releases a scent that is the same as the musk that is released by the Mexican musk turtle (Staurotypus tripoorcatus). Snapping Turtle has a relatively small plastron, only 50%-60% of the carapace. Therefore, the turtle's limbs are well-developed in the thighs and have long limbs. The strong claws of the current limb climb the object, and the hind legs and the tail support the ground. The turtle can stand upright. When crawling, the four limbs will support themselves, and the stepping distance is large and the speed is fast.
(c) Food habit
Snapping turtles are omnivorous, such as wild fruits, plant stems and leaves, shrimp, small crabs, small fish, clams, snails, clams, leeches,. Small frogs, clams, clams, freshwater parasites, small mammals, and a variety of algae. Under artificial rearing conditions, fish, pork, beef and poultry are viscera, and plants eat apples and leaves.
(IV) Breeding habits
1. Females and males identified males with large body shapes and long tails. Their length was 86% of the length of the plastrons, and the cloaca was located outside the edge of the carapace. The female turtles were short and the length of the turtle tail was less than the length of the plastrons. Of 86%, the cloaca hole is located within the edge of the carapace.
2. Breeding habits Snapping turtles have their mating season from April to September each year. Males often climb to the back of females. At first, the female turtles crawl. After the male turtle slides down and climbs up, it repeatedly climbs until it repeats. Stop the crawl, the male turtle hind legs slamming, the front claws hooked the female turtle's carapace, during the process of mating, the male turtle head and neck straight and shaking around, sometimes the two nostrils of the turtle against the nostrils, confront each other. May-November each year is the spawning period and June is the peak period. The female turtle climbs to the shore and looks for open land, usually about 200 meters from the water's edge. The caves dug by the turtles are large and have a small cavern. They have a certain degree of curvature. The caves are 10-13 cm deep. The size of the cavern varies depending on the turtle's body shape. There are 11-83 eggs per litter, usually 20-30, and large females spawn more eggs. Eggs are white, spherical, slightly rough appearance, diameter 23-33 mm, weighing 7-15 grams. After hatching for 55-125 days, the hatchling hatches, the hatching environment is different, and the hatching days are different. When the incubation temperature is above 30°C and below 20°C, the hatchlings are female; when the incubation temperature is between 22°C and 28°C, the hatchlings are male. The juvenile turtle weighs 9.5-12 grams, the length of the carapace is 24-31 millimeters, the carapace is slightly rounded, black, and there are projections on each scutellum, and the back edge of the carapace is serrated.
(v) Spring feeding
1. The spring of early spring (February-March) is the key to turtle rearing. At this time, the temperature is not stable, and the height is high and low. When the temperature is high, the turtle crawls, eats, consumes energy in the body, and the energy cannot be supplemented in time. Therefore, in late February or late March, depending on the body condition of the turtle, artificial warming will increase the water temperature to around 25°C, especially during the night. In feeding, we should master the principle of less quantity and high quality. The amount of the first feeding should not be too much. It is advisable to use 1% of the turtle's weight and feed it twice a week. When changing water, the temperature difference between the new water should not exceed 5°C, and it is better that the temperature difference between the new water is higher to prevent the stomach from becoming discomfort.
2. The spring of spring is the key to good turtles and turtles hibernating. First of all, in the feeding should be "fixed, quantitative, timed", that is, the feeding site is fixed, the amount of food fed is fixed, the feeding time is fixed. Do not suffer from hunger when you are ready, otherwise it can easily cause the turtle to digest. In terms of management, it is necessary to constantly change the water and observe it frequently, that is, to constantly change the water, carefully observe the turtle's activities, excrement, eating, etc., and take timely measures for turtles that have abnormal conditions. Spring is the season for the spread of disease. Turtles are susceptible to bacterial attack and prevent turtle disease. They have a positive effect on turtle breeding.
(VI) Summer feeding
In summer, the temperature is relatively high. The turtle eats and eats a large amount of activity and is relatively simple to feed. Generally, it feeds once a day and changes the water 2-3 hours after feeding. When the water temperature is above 32°C, care should be taken to prevent heatstroke. Measures such as deepening the water level and moving people into the room can be taken.
(VII) Feeding in the fall
1. Feeding in the early fall around October, the temperature is high before and after noon, and the turtle crawling is relatively large. Feeding should be around 10-11 o'clock, and change the water or fishing net bait around 3-4 pm, changing the water every other day. The amount of food that is fed increases so that the nutrients stored in the turtle's body can ensure that the winter turtle's energy consumption, so that the turtle safely overwintering.
2. During the fall of November-December, the temperature is unstable. When the temperature is high during the day, the turtle crawls and eats. At night, when the temperature decreases, the turtle hibernates. The turtle is in such an environment and is prone to illness. Therefore, if the temperature rises between November and December, avoid feeding.
(viii) Winter feeding
Physically healthy turtles should be allowed to hibernate naturally. Weak or young turtles should be raised to raise the temperature of the water to above 23°C and feed and feed normally. In winter, water is generally changed once a month.
(9) Daily management
In addition to feeding and water quality management, turtles need to do a series of management work. First of all, daily inspections were conducted, and turtle excrement, food, water quality, temperature, and water temperature were recorded one by one, and abnormalities were discovered and dealt with promptly. Second, Snapping Turtles have a strong absconding ability. Forelegs can climb and rely on two hind legs and tails. Turtles can stand upright and can climb trees, rough walls and concrete surfaces. Therefore, it is necessary to constantly inspect the partitions to assess the surrounding environment and whether the turtle can escape. The height of the container should be 2-3 times the full length of the body (head-to-tail distance). Finally, although snapping turtles have strong disease resistance, under artificial feeding conditions, turtles can sometimes become ill due to factors such as temperature, feed, and water quality. It is difficult to find turtle disease, which requires the keeper must master the turtle's activities, feeding, water quality, etc., to facilitate the timely detection and treatment of the problem.
(a) Ecological habits
In the wild, Snapping Turtles are aquatic turtles that live in freshwater, such as lakes, rivers, swamps, and pools. They can also live in salty waters with low salt content, such as harbors. Hi in the water in the sand, shrubs, weeds. When the snapping turtle floats in the water, it is not easy to be found with its protective color on the carapace like a piece of rotten wood floating in the water. It often sticks its nose out of the water, and its head does not fully extend. Snapping Turtles like to be in the water during the day, lying on the wood or stones, and sometimes floating on the water. Sometimes they have four legs facing up and their backs facing downward, but their heads are facing upward. The turtle began to crawl in the night. Snapping turtles are not afraid of the cold and are not hot. Ambient temperature above 18 °C normally feed; 20-33 °C is the best activity, feeding temperature; 34 °C less moving, Fu in the bottom and the summer in the sand; 15-17 °C fashion can be a small amount of activity, some turtles Can eat food; hibernate below 15°C; hibernate below 10°C.
(B) Behavioral habits
Snapping turtles are the most ferocious species of turtles. Adult snapping turtles are aggressive and can attack people actively. 20-40 grams of larvae are more gentle and do not take the initiative to injure others. When something moves in front of the turtle and shakes, the turtle first shrinks his head into the shell, waits for a timely opportunity, suddenly sticks his head to bite, and then shrinks his head back into the shell, and so repeatedly. When the turtle is caught, the body of the turtle releases a scent that is the same as the musk that is released by the Mexican musk turtle (Staurotypus tripoorcatus). Snapping Turtle has a relatively small plastron, only 50%-60% of the carapace. Therefore, the turtle's limbs are well-developed in the thighs and have long limbs. The strong claws of the current limb climb the object, and the hind legs and the tail support the ground. The turtle can stand upright. When crawling, the four limbs will support themselves, and the stepping distance is large and the speed is fast.
(c) Food habit
Snapping turtles are omnivorous, such as wild fruits, plant stems and leaves, shrimp, small crabs, small fish, clams, snails, clams, leeches,. Small frogs, clams, clams, freshwater parasites, small mammals, and a variety of algae. Under artificial rearing conditions, fish, pork, beef and poultry are viscera, and plants eat apples and leaves.
(IV) Breeding habits
1. Females and males identified males with large body shapes and long tails. Their length was 86% of the length of the plastrons, and the cloaca was located outside the edge of the carapace. The female turtles were short and the length of the turtle tail was less than the length of the plastrons. Of 86%, the cloaca hole is located within the edge of the carapace.
2. Breeding habits Snapping turtles have their mating season from April to September each year. Males often climb to the back of females. At first, the female turtles crawl. After the male turtle slides down and climbs up, it repeatedly climbs until it repeats. Stop the crawl, the male turtle hind legs slamming, the front claws hooked the female turtle's carapace, during the process of mating, the male turtle head and neck straight and shaking around, sometimes the two nostrils of the turtle against the nostrils, confront each other. May-November each year is the spawning period and June is the peak period. The female turtle climbs to the shore and looks for open land, usually about 200 meters from the water's edge. The caves dug by the turtles are large and have a small cavern. They have a certain degree of curvature. The caves are 10-13 cm deep. The size of the cavern varies depending on the turtle's body shape. There are 11-83 eggs per litter, usually 20-30, and large females spawn more eggs. Eggs are white, spherical, slightly rough appearance, diameter 23-33 mm, weighing 7-15 grams. After hatching for 55-125 days, the hatchling hatches, the hatching environment is different, and the hatching days are different. When the incubation temperature is above 30°C and below 20°C, the hatchlings are female; when the incubation temperature is between 22°C and 28°C, the hatchlings are male. The juvenile turtle weighs 9.5-12 grams, the length of the carapace is 24-31 millimeters, the carapace is slightly rounded, black, and there are projections on each scutellum, and the back edge of the carapace is serrated.
(v) Spring feeding
1. The spring of early spring (February-March) is the key to turtle rearing. At this time, the temperature is not stable, and the height is high and low. When the temperature is high, the turtle crawls, eats, consumes energy in the body, and the energy cannot be supplemented in time. Therefore, in late February or late March, depending on the body condition of the turtle, artificial warming will increase the water temperature to around 25°C, especially during the night. In feeding, we should master the principle of less quantity and high quality. The amount of the first feeding should not be too much. It is advisable to use 1% of the turtle's weight and feed it twice a week. When changing water, the temperature difference between the new water should not exceed 5°C, and it is better that the temperature difference between the new water is higher to prevent the stomach from becoming discomfort.
2. The spring of spring is the key to good turtles and turtles hibernating. First of all, in the feeding should be "fixed, quantitative, timed", that is, the feeding site is fixed, the amount of food fed is fixed, the feeding time is fixed. Do not suffer from hunger when you are ready, otherwise it can easily cause the turtle to digest. In terms of management, it is necessary to constantly change the water and observe it frequently, that is, to constantly change the water, carefully observe the turtle's activities, excrement, eating, etc., and take timely measures for turtles that have abnormal conditions. Spring is the season for the spread of disease. Turtles are susceptible to bacterial attack and prevent turtle disease. They have a positive effect on turtle breeding.
(VI) Summer feeding
In summer, the temperature is relatively high. The turtle eats and eats a large amount of activity and is relatively simple to feed. Generally, it feeds once a day and changes the water 2-3 hours after feeding. When the water temperature is above 32°C, care should be taken to prevent heatstroke. Measures such as deepening the water level and moving people into the room can be taken.
(VII) Feeding in the fall
1. Feeding in the early fall around October, the temperature is high before and after noon, and the turtle crawling is relatively large. Feeding should be around 10-11 o'clock, and change the water or fishing net bait around 3-4 pm, changing the water every other day. The amount of food that is fed increases so that the nutrients stored in the turtle's body can ensure that the winter turtle's energy consumption, so that the turtle safely overwintering.
2. During the fall of November-December, the temperature is unstable. When the temperature is high during the day, the turtle crawls and eats. At night, when the temperature decreases, the turtle hibernates. The turtle is in such an environment and is prone to illness. Therefore, if the temperature rises between November and December, avoid feeding.
(viii) Winter feeding
Physically healthy turtles should be allowed to hibernate naturally. Weak or young turtles should be raised to raise the temperature of the water to above 23°C and feed and feed normally. In winter, water is generally changed once a month.
(9) Daily management
In addition to feeding and water quality management, turtles need to do a series of management work. First of all, daily inspections were conducted, and turtle excrement, food, water quality, temperature, and water temperature were recorded one by one, and abnormalities were discovered and dealt with promptly. Second, Snapping Turtles have a strong absconding ability. Forelegs can climb and rely on two hind legs and tails. Turtles can stand upright and can climb trees, rough walls and concrete surfaces. Therefore, it is necessary to constantly inspect the partitions to assess the surrounding environment and whether the turtle can escape. The height of the container should be 2-3 times the full length of the body (head-to-tail distance). Finally, although snapping turtles have strong disease resistance, under artificial feeding conditions, turtles can sometimes become ill due to factors such as temperature, feed, and water quality. It is difficult to find turtle disease, which requires the keeper must master the turtle's activities, feeding, water quality, etc., to facilitate the timely detection and treatment of the problem.
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