A Detailed Guide to Snake Breeding Habits and Artificial Incubation Methods for Snake Eggs

In snake farming, it is necessary to understand the breeding habits of snakes so that better results can be achieved when artificially incubating snake eggs. So what are the breeding habits of snakes? What are the artificial incubation methods for snake eggs?

1. What are the breeding habits of snakes?

Snakes are dioecious animals with internal fertilization and are either oviparous or ovoviviparous. Their sexual organs mature 2 to 3 years after hatching. The external differences between male and female snakes are not obvious. What is relatively easy to distinguish is that among snakes of the same species and similar size, the female usually has a smaller head and a shorter, plumper tail, while the male has a larger head and a thinner, longer tail. When the rear end of the cloacal opening is tightly pinched with two fingers, the female's cloacal opening appears flat and concave, while two "hemipenes," that is, a pair of copulatory organs, will protrude from the male's cloacal opening. This is a simple and easy method for accurately identifying male and female snakes.

Snakes come into heat and mate in spring or autumn. During the snake breeding season, a gland at the base of the female's tail emits a special odor, and the male tracks the female by means of this odor. The male has a pair of copulatory organs, the so-called "hemipenes," which are usually retracted into the base of the tail and can extend from the cloacal opening during mating. Only one side of the "hemipenes" is used each time during mating. During mating, the two snakes tightly intertwine like a twisted cruller, with their heads facing the same direction. The male's body shakes violently, while the female lies still on the ground. After ejaculation, the male and female separate. During the breeding season, one male snake can mate with several female snakes. During the annual breeding season, although the female snake accepts mating only once, the sperm stored in the female's cloaca can still retain fertilizing capacity for 3 years. Therefore, in artificial rearing, a male-to-female ratio of 1:8 is sufficient.

Snakes reproduce in two ways: oviparity and ovoviviparity. Snake eggs are elongated and oval, with hard shells, and are milky white or pale yellow. The eggs are mostly laid in well-concealed grasslands, fallen leaves, or compost piles with a certain temperature and humidity. Except for the king cobra and the sharp-nosed pit viper, which exhibit egg-guarding behavior, most other snakes leave the egg-laying site after laying eggs and let the eggs hatch under natural conditions. In ovoviviparous snakes, the eggs develop in their respective oviducts, and then a young snake is born.

2. What are the artificial incubation methods for snake eggs?

Because the incubation of snake eggs is greatly affected by environmental conditions, artificial incubation can be carried out to increase the hatching rate. According to the egg-laying period of different snake species, check in time whether they are carrying eggs. When checking, first pinch the snake's neck with one hand, moving gently, and with the other hand lightly massage and slide from the snake's abdomen to the cloacal opening. If a depression is felt on the abdomen, the closer it is to the cloacal opening, the more it indicates that egg laying is imminent. The female snake about to lay eggs must be put into a snake box or egg-laying room as soon as possible to lay eggs. The female snake about to lay eggs must be put into a snake box or egg-laying room as soon as possible to lay eggs.

The snake eggs that have been laid must be promptly placed into an incubator for incubation. The incubator can be a wooden box or a water vat. Taking the incubation method for the silver-ringed snake as an example, first place a large water vat in a cool and dry incubation room, put half a vat (at least 30 cm thick) of semi-dry, semi-moist loose soil or fine sand in the vat, and then place the snake eggs flat on top of the loose soil or fine sand. Cover the top of the vat with a perforated bamboo sieve or wire mesh to prevent mice from eating the eggs or the young snakes from escaping after hatching. Soak an appropriate amount of fresh, dry rice straw (wheat straw or sheep grass) in water for 1 hour, wring out the water after it is thoroughly soaked, and place it on the surface of the eggs. After 3 to 5 days, soak the grass thoroughly again, wring it out, and place it on top. Use this method to regulate humidity. Turn the eggs once every 10 days. Throughout the incubation period, keep the room temperature at 20 to 25 degrees C, and the relative humidity at 50% to 90%. After 25 to 30 days of incubation, the embryonic development can be seen from outside the eggshell. If the reticular blood vessels in the embryo gradually thicken and spread, it indicates that the embryo is developing well and a young snake can be hatched. If the embryo has no blood vessels or the blood vessels appear spotty and do not spread, it indicates that the embryo has died and no young snake can be hatched, so it must be removed in time. The incubation period is generally 40 to 50 days. When hatching, the young snake uses its egg tooth to cut through the eggshell, making 2 to 4 openings one cm long. Its head first extends out of the shell, and its body slowly crawls out. It takes about 20 to 23 hours to completely leave the shell. The newly hatched young snake looks the same as an adult snake and moves lightly and nimbly. However, it often cannot actively feed or drink water, so bait must be provided with artificial assistance; see the section on raising young snakes for details.

The keys to the success or failure of artificial incubation are the following three points:

(1) Collect eggs in time and incubate as early as possible. If eggs are stored for too long or exposed to sunlight, the hatching rate will be reduced.

(2) Eggs must be placed flat and must not be placed upright. During incubation, turn the eggs once every 10 days, and in conjunction with turning the eggs, check the embryonic development and promptly remove dead-embryo eggs.

(3) Adjust temperature and humidity in time. If the temperature is below 20 degrees C and the relative humidity is above 90%, the incubation period will be prolonged and the hatching rate will decrease; if the temperature is above 30 degrees C and the relative humidity is below 40%, the eggs will evaporate water quickly, the eggs will become sunken, and the hatching rate will also be very low. Therefore, the core condition for incubation is to properly control temperature and humidity. When temperature and humidity are abnormal, adjustment measures should be taken immediately. For example, when humidity is too high, open the box lid or vat lid in time to let some moisture dissipate; or place a hot water bag with 60 degrees C warm water 30 to 40 cm from the egg surface to accelerate water evaporation; or appropriately increase ventilation to reduce humidity.