Ask the age of the turtle and what you think of the species

With the periodic change of nature, the turtle has an obvious growth period and hibernation period, the dorsal armor shield grows like the body during the growth period, forming a loose and wide concentric ring circle, the tortoise enters a dormant state during the hibernation period and stops growing, and the dorsal armor shield almost stops growing, forming a narrow and tight concentric ring circle. Such dense concentric rings are similar to the age of a tree based on its growth rings, and a growth ring occurs when it experiences a winter when development stops.

Based on this, the age of the turtle can be determined, that is, the number of concentric rings on the shield, and then add 1 (the broken shell is born as a ring), which is equal to the actual age of the turtle. This method can only be calculated when the concentric ring pattern of the turtle's back carapace is clear, the annual ring of the turtle is clearer before the age of 10, and soon after the birth of the juvenile turtle, the shield outside the shell ** on the outer hard ** see some radial lines, and there is no round wheel, there are several rings of the turtle's back carapace, that is, how old the turtle is, the longer the age is more difficult to identify with the naked eye, only according to the weight of the turtle to calculate, except for artificial breeding, the wild turtle per 500g weight of the turtle age, about 20 years in the south of our country, about 40 years in the north of the turtle.

1. Except for the hognose turtle and the suffocating turtle, the other turtles have 13 cracks.

2. A circle of growth streaks represents one year, but there will be changes due to lesions or natural reasons, which can be roughly referenced;

There are only two types of turtles in your market, the most likely is the Brazilian turtle, which has red cheeks and paws like watermelons, and the other may be the Chinese grass turtle (also known as the big head, grass, ink turtle, turtle).

The full illustrated book is here.

Age is generally seen on the back but is not accurate.

If you see 9 laps, you're at least 9 years old, just a lot more.

1. To see the age of the turtle, you can reverse the turtle and look at the spots on its abdomen, each spot has irregular circles, and a few circles indicate how old the turtle is.

2. If the concentric rings on the back of the turtle are relatively clear, you can also judge the age of the turtle by counting the number of concentric rings, and the number of circles of the concentric rings plus 1 is the age of the turtle.

3. The weight of the turtle is related to the age, and the age of the turtle can be roughly judged by the physique. About 15g is 1 year old, about 50g is 2 years old, about 100g is 3 years old, and about 200g is 4 years old.

Look at the abdominal carapace: The tortoise's abdominal carapace has a lot of irregular round shapes. The keeper can count the number of circles on the abdominal carapace, generally there are several rounds, and the turtle is how old it is.

Look at the dorsal carapace: Keepers can also observe their dorsal carapaces, which also have a lot of concentric rings on their dorsal carapaces, and one concentric rings represents a year. All concentric rings plus one, is the age of the turtle.

Look at the body type: It can also be judged by the size of the turtle, which is about 5-6 cm long.

The lifespan of a turtle is generally about 20 years, and the age at which different species of turtles survive is also different. Under normal circumstances, tortoises live a little longer, around 50 years on average. Family-bred tortoises have a shorter lifespan, generally between 10 and 20 years.

Since they are affected by the environment in which they grow and the way they are raised, their lifespan is not fixed. If you want your turtles to live longer, you need to take good care of them and try to reduce the chance of them getting sick, so that you can prolong their lifespan appropriately.

During the growth period, the dorsal armor shield grows like the body, forming loose and wide concentric rings, so that the dense concentric rings are similar to the age of the tree by the tree's annual rings, and when it experiences a winter that stops developing, a growth ring appears. Based on this, the age of the turtle can be determined, that is, the number of concentric rings on the shield, and then add 1, which is equal to the actual age of the turtle.

The age of the turtle is, and the older it gets, the more difficult it is to identify with the naked eye, and it can only be estimated based on the weight of the turtle. Of course, factors such as different turtle species, ring clarity, and the presence of rings at hatching can also affect the accuracy of age. The life span of the turtle is generally longer, at least 20 years, according to historical records, the life span of the white turtle reaches more than 800 years, so there is a longevity reputation of "a thousand-year-old turtle".

1. There are three ways to identify the age of a tortoise.

1. Look at the abdominal spots of the turtle towards the sky, each abdominal spot has circular lines, and each circle of the year represents (some have two circles or no circles).

2. Look at the carapace on the back (the so-called thirteen hexagons), there are circles on each carapace, and each circle represents a year, but now many turtles are fed in artificial greenhouses, although the turtles are larger, but the growth lines are more difficult to see.

3. Calculated by the number of concentric rings on the shield piece of the turtle's back carapace, every 1 circle represents a growth cycle of one year, and then add 1 (1 year for birth after breaking the shell), that is, the age of the turtle.

Of course, factors such as different species and the presence of rings at hatching will also affect the accuracy of age. For old turtles or turtles with indistinct concentric rings, the approximate age can only be estimated.

2. Methods for judging the sex of the tortoise.

Generally speaking, the dorsal carapace of the female turtle is short and broad, its ventral carapace is flat and unindented, the tail is thin and short, the base of the tail is thin, the cloaca is close to the posterior edge of the carapace, and the notches formed by the two anal shields of the ventral carapace are shallow, and the notches angle is larger; The dorsal carapace of the male tortoise is long and narrow, the ventral carapace ** is slightly inverted, the tail is thick and long, the base of the tail is thick, the cloaca is far from the posterior edge of the carapace, and the notch formed by the two anal shields of the ventral carapace is deeper, and the notch angle is smaller. Overall, for most adult turtles of the same year, the male turtle is thin and small, and the female turtle is round and large.

The growth rate of the turtle is relatively slow, under normal conditions, the growth rate of the female turtle is: the weight of the first-year-old turtle is about 15 grams, the second-year turtle is 50 grams, the third-star turtle is 100 grams, the fourth-star turtle is 200 grams, the fifth-star turtle is 250 250 grams, and the six-year-old turtle is about 400 grams. Male turtles grow slowly, and the maximum sexual maturity is generally less than 250 grams.

Turtles are ectotherms, and they hardly eat much in winter, so they don't grow much; In summer, when you eat a lot of food, you will grow much faster, so there will be a circle of concentric circles on the back shell that resemble tree rings, and one circle represents one year old, so count carefully to see how many circles are how old they are.

In addition, it is generally estimated by the number of concentric rings on the tortoiseshell shield, and every one circle represents one growth cycle, that is, one year. The number of concentric rings on the shield, and then add 1 (1 year after the birth of the broken shell), that is, the age of the turtle.

The most common and common way to calculate the age of a turtle is:

Take the tortoise carapace. The number of concentric rings on the shield is calculated. Every 1 lap on the tortoise's dorsal carapace represents 1 growth cycle, which means that the tortoise is 1 year old. How many concentric rings on the turtle shield, and then add the broken shell to be born for 1 year, which is the actual age of the turtle.

Note: This method of calculating the age of the turtle can only be used on the tortoise with clear concentric rings on the dorsal carapace, and for the elderly turtle or the tortoise with blurred concentric rings, the approximate age of the tortoise can only be estimated, but its actual age cannot be accurately calculated.

The turtle looks at the rings on its back, and there is indeed such a thing. (As with the tree, if you eat enough this year, eat more, and grow faster, then the scales of the dorsal armor will grow faster: if you eat less this year, then it will not grow so fast.)

In their natural environment, tortoises crawl in the sand, so the dorsal carapace of wild tortoises is usually smoother and neater. In this case, if there is a difference in growth, there will be long rings. And the turtles raised in the greenhouse, because they eat so much every time, the temperature is also constant, the density is relatively large, and it is easy to wear out the wrong nails, because obesity leads to the deformation of the back carapace, so the dorsal carapace rings that appear at this time are actually growth folds in many cases, so there is nothing to examine.

But there is a more important premise, that is, wild turtles (some special turtle species are not suitable for this judgment).

The rings say that there is a certain deviation from the turtles cultivated in the greenhouse, and it is difficult for non-experts to distinguish.

1. Generally speaking, the growth lines of wild turtles are relatively fine and clear, and the growth lines of the inner ring are often not as clear as the outer ring, but some artificial turtles that do not have time to take care of them are usually fed less, and they can also grow thin lines.

2. Most artificial turtles have relatively wide growth lines, and often the inner and outer rings are almost clear, but many wild turtles also have wide growth lines due to the abundant food in the growth environment.

3. In most cases, a circle of growth lines represents a year, but the growth lines of many turtles will gradually disappear after the influence of environmental wear and tear, so the growth lines can only be used as a reference to see the age, some turtles are originally barebacked, such as bareback yellow throat, you can't know the age through the growth lines.

4. Some growth lines are pseudo-growth lines, false growth lines are generally more common in artificial turtles, especially when warmed, the texture of false growth lines is relatively shallow, and vague, the growth environment of wild turtles is relatively large, and the quality of water source and diet are also relatively stable, so wild turtles rarely get sick, and the growth rate is basically stable, so there are fewer coarse and long lines of pseudo-growth, which is why we see that the width of most wild turtle growth lines is almost the same. Due to problems such as water quality, environment, diet, and easy disease, artificial turtles often change the rate of early growth of turtles, which will form false growth patterns that are wide and narrow.

Under natural conditions, the gonads of turtles above the 5th year of age begin to mature, and the 7th year of age matures well. In terms of weight, the male turtle is generally 150 grams, and the female turtle is 250 grams, and the sex begins to mature.