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Prediction from ultrasonographic measurements of the expected delivery date in two species of bottlenosed dolphin (Tursiops truncatus and Tursiops aduncus)
Lacave, G.; Eggermont, M.; Verslycke, T.; Brook, F.; Salbany, A.; Roque, L.; Kinoshita, R. (2004). Prediction from ultrasonographic measurements of the expected delivery date in two species of bottlenosed dolphin (Tursiops truncatus and Tursiops aduncus). Vet. Rec. 154(8): 228-233
In: The Veterinary Record. British Veterinary Association: London. ISSN 0042-4900; e-ISSN 2042-7670, meer
Peer reviewed article  

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  • Lacave, G.
  • Eggermont, M., meer
  • Verslycke, T.
  • Brook, F.
  • Salbany, A.
  • Roque, L.
  • Kinoshita, R.

Abstract
    Ultrasonographic measurements were made at least once a month during 14 gestations in seven Tursiops truncatus and 12 gestations in five Tursiops aduncus (bottlenosed dolphins). The 121 measurements of the fetal biparietal diameter and 139 measurements of the fetal thoracic diameter in T truncatus and the 97 measurements of the biparietal diameter and 97 measurements of the thoracic diameter in T aduncus were used to establish regression lines for the increases in the diameter of the head and thorax of the fetus with time. From these relationships an easy-to-use computer program was developed to predict the date of birth of the two species of bottlenosed dolphin, and its predictions were compared with the actual dates of birth of other calves of both species. The births occurred within the range of predicted dates, and even when only a few measurements were available, the program provided accurate predictions.

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