Breeding methods of improved varieties of Gekko gecko

With the provenance, it is necessary to gradually establish an excellent breeding population, so it is necessary to further select adult gecko and eggs, form a population with excellent individuals, and constantly increase the weight and fecundity of gecko, so as to improve the economic benefits of raising gecko.

1. Selection criteria: the adult clam scale is 1216cm long from the snout to the cloacal cavity, the tail length is 10cm 14.5cm, the weight is 60g, and the heaviest one is more than 100g. The body length of gecko should be more than 15 cm and the body weight should be more than 70 grams. Those who can not reach this index should be raised in another group and treated with commodities. In the aspect of reproduction, a female adult gecko usually lays 2 eggs a year, but under the condition of artificial feeding, some individuals can lay 2 eggs twice a year and lay 2 eggs each time because of sufficient feed and rich nutrition. According to this situation, among the individuals who reach the standard of body weight and body length, those who lay eggs twice a year or lay more than 2 eggs once a year are selected. After generation-by-generation selection and breeding, an excellent population with large size and strong reproduction can be cultivated in 5 to 8 years.

2. Seed selection method

1) Adult selection

2) for the selection of eggs, the eggs laid by the female clam scale are generally large, and the eggs laid by the female clam scale with good physique are also large, so the eggs of more than 6.5 grams should be selected to hatch alone. The young gecko hatched by large eggs is also large and can be cultivated as a kind of gecko. The young gecko hatched by eggs less than 6.4 grams can be bred for commercial gecko.

3) the average natural incubation period of the eggs of Gekko gecko in the same year is 105 days. Under the condition of artificial hatching, the hatching period is about 70 days. Under the condition of artificial hatching, the eggs that come out of the shell within 70 days are selected. The larvae whose shell weight is more than 4.5 grams can be used for gecko breeding, and the hatching period is more than 70 days or the body weight is less than 4.5 grams, so they should be raised in commercial groups. Because the individual who comes out of the shell early is strong, the weight of the shell grows fast, and the individual is large.

After the selection of the above three methods, generally after three generations, the provenance quality of gecko can be greatly improved.

3. Female-male ratio and egg selection adult female-male ratio should be appropriate, so that the fertilization rate of eggs is high. The results showed that when the female-male mating ratio was (3-5) ∶-1, the fertilization rate of eggs was higher when the eggs were mated freely, so the female-male mating ratio of clam scale was 5 ∶ 1. The eggs of gecko gecko should be selected before hatching. the eggs with normal development are just white, and become light flesh color or flesh color after about 20 days. if you open the eggs, you can see that a large number of white filaments on the yolk are reticulated and become lead-gray after about 1 month. about 2 months later, the egg became grayish black, until the larva broke out 3 months later, and the egg shell was blood red. In the process of embryonic development, eggs held by hand have a sense of weight, no matter when weighed, the weight loss is no more than 1 stroke 5, such eggs belong to normal eggs. If the weight loss rate is more than 1 stroke 5, it is likely to be stillborn. Gecko sometimes lays soft-shell eggs, which cannot be hatched because the bacteria in the soft-shell eggs are easy to enter and the surface is easy to mildew. Azoospermic egg shell white, there are some very small eggs, are malformed eggs, can not be hatched.