captive breeding

Captive breeding of Regel’s racerunner (Eremias regeli, Reptilia, Lacertidae)

Authors: Kidov A. A., Erashkin V. O., Ivanov A. A., Kondratova T. E.

The paper presents the results of laboratory reproduction of Regel’s racerunner (Eremias regeli). Offspring was obtained from natural individuals (2 females and 2 males) captured in the vicinity of the Bokhtar town (Khatlon region, Republic of Tajikistan). Captive-born animals (3 females and 2 males) began laying eggs at the age of 7 months. The lizards from nature reproduced twice a year, while the animals obtained in the laboratory lay eggs up to three times per season. The clutches of both natural and laboratory lizards contained from 2 to 4 eggs.

Captive breeding of the Caspian lizard (Darevskia caspica) (Reptilia, Lacertidae)

Authors: Kidov A. A., Ivanov A. A., Erashkin V. O., Kondratova T. E.

The Caspian lizard (Darevskia caspica) is a recently described endemic of the Hyrcanian forests of Northern Iran. The paper presents new data on the reproductive biology of D. caspica obtained in laboratory conditions. Breeding females have a body length of 53.4– 64.4 mm and a mass of 2.96–3.60 g. Females produce from one to three clutches per season, each of which contains 1–6 eggs. The length of these eggs is 10.35–13.95 mm, width 6.19–7.59 mm, and weight 0.27–0.45 g.

Captive Breeding of the Caucasian Smooth Newt, Lissotriton lantzi (Wolterstorff, 1914) (Salamandridae, Amphibia)

Authors: Kidov A. A., Nemyko E. A.

Lantz’s newt, or the Caucasian smooth newt (Lissotriton lantzi), is an endemic species of the Caucasus. The distribution and abundance of this species are decreasing, especially on the periphery of its habitat. The paper presents the results of our study of reproduction, growth and development of Lantz's newt in artificial conditions. Eight couples of animals were caught on the Strizhament Mountain (the Stavropol region, Russian Federation) in 2015 and 2016. The newt couples were constantly kept in water in plastic containers (one couple in each container).

LABORATORY REPRODUCTION OF THE CUBAN TOAD, PELTOPHRYNE EMPUSA COPE, 1862

Authors: Kidov A. A., Matushkina K. A., Blinova S. A., Afrin K. A.

The paper presents data on reproduction of the Cuban toad, Peltophryne empusa in laboratory conditions. Spawning was stimulated by surfagon injection. The start of spawning was observed at a temperature of 27.0 - 27.5°C in the early morning after 10 - 12 h after the hormonal injection. The female fertility ranged from 2,415 to 7,343 eggs. Incubation lasted 12 - 24 h. The total embryogenesis duration from egg laying to the start of exogenous feeding of larvae was about 2 days. The larval development of the Cuban toad lasted from 27 to 64 days.

THE FIRST CASE OF REPRODUCTION OF THE LATASTE’S TOAD, BUFOTES LATASTII (BOULENGER, 1882) IN LABORATORY CONDITIONS

Authors: Kidov A. A., Matushkina K. A., Litvinchuk S. N., Blinova S. A., Afrin K. A., Kovrina E. G.

The paper presents data on reproduction of Lataste’s toad, Bufotes latastii, in laboratory conditions. Dur- ing the summer, such animals  were  kept at  temperatures  within 26 – 30°C and a  daylight duration of  16 hours in a horizontal terrarium with its ground made of shredded bark. Laboratory-bred two-spotted crickets, Grillus bimaculatus, were food for adult toads. Within 28 days (from early February till early March) the animals were kept at temperatures within 9.4 – 15.8°C, humidity within 20 – 48%, and under natural lighting.