How old do you think the tortoise is?

Generally, the turtle's age can be identified by concentric lines on the tortoise shell (except those that grow all the year round), because there are annual rings on the tortoise shell during the growth and hibernation in a year (hibernation stops the turtle's development), so as to judge the turtle's age.

The calculation method of turtle's age is generally based on the number of concentric rings on the tortoise shell shield, and each ring represents a growth cycle, that is, one year. The number of concentric rings on the shield, plus 1 year (born one year after the shell is broken) is the age of the turtle.

This method can only be more accurate if the concentric ring pattern of tortoise shell is clear. For an old turtle or a turtle with fuzzy concentric rings, only its approximate age can be estimated. In addition, heated turtles are not suitable for calculation in this way.

Extended data:

Matters needing attention in raising turtles

1, greenhouse cultivation

(1) The temperature of greenhouse culture should be controlled at about 26 ~ 28℃. Too high temperature will promote the turtle's metabolism too fast, the turtle's back will be high, the abdomen will be sunken, which will affect the appearance, and white spots will appear under the shell surface. At the same time, avoid making some bacteria and viruses grow too fast at a suitable temperature.

(2) After feeding, clean up the residue and water in time; At the same time, feeding should not be too single. I see that most farmers like to feed meat or add some grain flour or fish meal in meat sauce to make turtles grow faster, but this will bring hidden dangers to the health of turtles. It will be more beneficial to feed some fruits and vegetables in moderation.

2. Outdoor culture

(1) There should be an environment suitable for breeding soft-shelled turtles, and some active feed should be put in the water for them to prey, so that they can consume fat. Turtles that don't take the initiative to feed are slightly weaker. Usually feeding should not be excessive, too much fat will affect health.

(2) When the soft-shelled turtle diaphragm is transferred to the outer pond, it should be well shielded to avoid stress damage, especially because there are many piles and tail bites, and the commercial soft-shelled turtle will not be seriously separated from the outer pond.

References:

Baidu encyclopedia turtle