Control of fetal development in the female Black Sea bottlenose dolphin (Tursiops truncatus ponticus Barabash, 1940) using ultrasound and studying the dynamics of the linear dimensions of the chest of the fetus.

[摘要] Pregnancy is an important period in the life of mammals, including cetaceans, held in captivity.This,of course, leaves its mark on the nutritional characteristics of animals, their mobility, the opportunity toparticipate in demonstrational events or scientific researches.Therefore, timely diagnosis of pregnancy, theestablishment of a period and characteristics of the development of embryos in various periods of prenatalontogenesis are extremely important. As a result of our studies, we were able to determine the gestational agein female bottlenose dolphins using their ultrasound examination in the embryonic and fetal periods, to revealdynamic differences in the size of the fetal chest in the period from the third to twelfth months of pregnancy.However, these measurements had no significant differences between the group of females who gave birthsafely on the one hand, and those who gave birth unfavorably on the other. At the same time, they revealedsignificant differences in hematological parameters. Trends in blood counts such as decreased hemoglobin,high alanine transaminase levels, and a large relative number of stab neutrophils can serve as markers of anunsuccessful pregnancy. Revealed a relatively young age (11,0 ±1,53 years)dysfunctional females, whichturned out to be significantly (P < 0,05) below the age (15,8 ± 1,37years) had safe births.Thus, the hematological parameters of pregnant females and their age can give an objective assessment of theprobability of physiologically normal delivery.

[学科分类] 工程和技术（综合）

[关键词] pregnancy;ultrasound;hematological parameters;bottlenose dolphin.