Dissertation
Tierärztliche Hochschule Hannover / Bibliothek – School of Veterinary
Medicine Hannover / Library
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Martina Börsch |
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Ultrasonographische
Fetometrie beim
Kaninchen |
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NBN-Prüfziffer |
urn:nbn:de:gbv:95-89276 |
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title (engl.) |
Ultrasonic fetometry in rabbits |
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publication |
Hannover, Tierärztliche Hochschule, Dissertation, 2004 |
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text |
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abstract (deutsch) |
Gegenstand und Ziel: Ziel dieser Arbeit war die ultrasonographische
Erstellung fetaler Wachstumskurven bei Riesen- und Zwergkaninchen.
Trächtigkeitsparameter wurden erhoben. Material und Methoden: Während
der Gravidität wurden bei 72 Embryonen / Feten von Riesen- und Zwergkaninchen
(jeweils n = 36) im Rassenvergleich 10 verschiedene fetometrische
Parameter ultrasonographisch erfasst, vermessen und
statistisch ausgewertet. Die Sonographie wurde täglich zwischen Tag (D) 5 und
D 30 der Trächtigkeit durchgeführt (7,5- bzw. 10-MHz-Sonde, B-Mode). Ergebnisse:
Eine Trächtigkeitsdiagnose konnte bei beiden Rassen sicher ab Tag 7 post coitum (D 7 p. c.) durch den Nachweis der
flüssigkeitsgefüllten Fruchtkammern gestellt werden. Embryonale Herzaktionen
sind bei beiden Rassen erstmals am D 9 p. c. mit einem Farb-Doppler
(7,5 MHz) zu erkennen, mittels |
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abstract (englisch) |
Objective: The aim of this study was to establish fetal growth
curves in comparison of two rabbit breeds. Pregnancy parameters were
investigated. Material and methods: Daily ultrasonic examinations of
72 embryos / fetuses of giant and miniature rabbits (n = 36, respectively)
were performed between day 5 and day 30 of pregnancy (7.5 MHz finger tip and
10 MHz linear transducer, B-Mode). 10 different fetometric parameters were
recorded and evaluated. Results: Fluid filled embryonic vesicles were
first detected in both breeds on day 7 post coitum (p. c.) and allowed a
positive pregnancy diagnosis, while the number of growing embryos / fetuses
could be reliably determined between day 8 p. c. and day 12 p. c. Embryonic
heart beat was visible in giant as well as miniature rabbits from day 9 p. c.
by means of a 7.5 MHz colour duplex transducer, day 10 p. c. of a 7.5 MHz
finger tip and 10 MHz linear transducer (B-Mode). Developmental differences
between the two breeds were seen in the parameters longitudinal and transverse
diameter of embryonic vesicles between day 13 p. c. and day 20 p. c. (P
< 0.001), fetal size day 7 p. c. (P < 0.001) and longitudinal
and transverse diameter of the heart between day 14 p. c. and day 26 p. c. (P
< 0.05). Predominantly, little differences were recognized in embryonic /
fetal size and crown-rump length, transverse orbita diameter, length /
biparietal diameter of the skull and intercostal space. Conclusion: In
summary, fetometric ultrasonic examinations in rabbits are a valuable and highly
informative diagnostic tool that can be performed easily. Clinical
relevance: The presented growth curves can be used in veterinary practice
for the assessment of the gestational age in miniature as well as in giant
rabbit breeds and as reference data for a comparison between normal and
disturbed prenatal development. Above all, the findings are the basic for a
scientific analysis of various influences on embryonic / fetal development. |
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keywords |
Kaninchen, Ultrasonographie, Fetometrie, Trächtigkeitsdiagnose, Rabbit, Ultrasonography, Fetometry, Pregnancy diagnosis |
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kb |
813 |