Az ultrahangvizsgálat szerepe a szibériai tokhalak ivarmeghatározásában
Our aim was to study the ultrasound sex determination and precision of the method in a Siberian sturgeon population. The data collection was carried out at a Hungarian, large fish colony. 30 pieces, 4 years old, 2.0 to 6.3 kg (mean 4.02 kg) body weight of individuals tested. The ultrasound sex deter...
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ftszentistvanufv:oai:www.huveta.hu:10832/997 2023-06-06T11:59:14+02:00 Az ultrahangvizsgálat szerepe a szibériai tokhalak ivarmeghatározásában Bacsa, Mónika 2013 http://hdl.handle.net/10832/997 hu hun http://hdl.handle.net/10832/997 halak fishes Szibéria Siberia ivarmeghatározás sex determination ultrahang diagnosztika ultrasonic diagnosis endoszkópia endoscopy hormonmeghatározás hormone determination szövettani vizsgálat histological examination Thesis 2013 ftszentistvanufv 2023-04-13T18:53:53Z Our aim was to study the ultrasound sex determination and precision of the method in a Siberian sturgeon population. The data collection was carried out at a Hungarian, large fish colony. 30 pieces, 4 years old, 2.0 to 6.3 kg (mean 4.02 kg) body weight of individuals tested. The ultrasound sex determination was performed by two investigators, with different practices. In parallel, the sex of the animals also been determined by trocar which method routinely used to define the specific sex. The effectiveness of the methods was checked post-mortem tissue studies. Processing of the results of the experienced and inexperienced ultrasonic investigators have been compared with the results of trocar method and also compared with each other. Overall, we found that the 30 fish tested with 90% efficiency by the experienced sonographer, and with 80% efficiency by the initial sonographer. The method trocar has given 63% correct diagnosis. Comparing the results of the two ultrasound investigators and the trocar method the following conclusions have been made: the advanced ultrasonographer had statistically greater effectiveness in validly (p = 0.0215) than trocar method. The same comparison in the initial sonographer and trocar was not given significant difference (p = 0.2668). Comparison of two ultrasonic test results was also not a significant difference (p = 0.4531). From the results it is concluded that the ultrasonic pre-qualification was not a decisive difference in effectiveness for the studied sample. The weight of the fish has a greater significance, because only one failed result was given by the ultrasonographic testing of animals among the fish over 4 kg, while the trocar sampling made a mistake in four cases in the same group. The explanation may be that the trocar is a "blind sampling" and may not be able to produce a representative sample in all conditions. In contrast, the ultrasound examination of the gonad can be examined even a long time in multiple planes and this is an opportunity for a more accurate ... Thesis Siberian sturgeon Siberia HuVetA - Hungarian Veterinary Archive |
institution |
Open Polar |
collection |
HuVetA - Hungarian Veterinary Archive |
op_collection_id |
ftszentistvanufv |
language |
Hungarian |
topic |
halak fishes Szibéria Siberia ivarmeghatározás sex determination ultrahang diagnosztika ultrasonic diagnosis endoszkópia endoscopy hormonmeghatározás hormone determination szövettani vizsgálat histological examination |
spellingShingle |
halak fishes Szibéria Siberia ivarmeghatározás sex determination ultrahang diagnosztika ultrasonic diagnosis endoszkópia endoscopy hormonmeghatározás hormone determination szövettani vizsgálat histological examination Bacsa, Mónika Az ultrahangvizsgálat szerepe a szibériai tokhalak ivarmeghatározásában |
topic_facet |
halak fishes Szibéria Siberia ivarmeghatározás sex determination ultrahang diagnosztika ultrasonic diagnosis endoszkópia endoscopy hormonmeghatározás hormone determination szövettani vizsgálat histological examination |
description |
Our aim was to study the ultrasound sex determination and precision of the method in a Siberian sturgeon population. The data collection was carried out at a Hungarian, large fish colony. 30 pieces, 4 years old, 2.0 to 6.3 kg (mean 4.02 kg) body weight of individuals tested. The ultrasound sex determination was performed by two investigators, with different practices. In parallel, the sex of the animals also been determined by trocar which method routinely used to define the specific sex. The effectiveness of the methods was checked post-mortem tissue studies. Processing of the results of the experienced and inexperienced ultrasonic investigators have been compared with the results of trocar method and also compared with each other. Overall, we found that the 30 fish tested with 90% efficiency by the experienced sonographer, and with 80% efficiency by the initial sonographer. The method trocar has given 63% correct diagnosis. Comparing the results of the two ultrasound investigators and the trocar method the following conclusions have been made: the advanced ultrasonographer had statistically greater effectiveness in validly (p = 0.0215) than trocar method. The same comparison in the initial sonographer and trocar was not given significant difference (p = 0.2668). Comparison of two ultrasonic test results was also not a significant difference (p = 0.4531). From the results it is concluded that the ultrasonic pre-qualification was not a decisive difference in effectiveness for the studied sample. The weight of the fish has a greater significance, because only one failed result was given by the ultrasonographic testing of animals among the fish over 4 kg, while the trocar sampling made a mistake in four cases in the same group. The explanation may be that the trocar is a "blind sampling" and may not be able to produce a representative sample in all conditions. In contrast, the ultrasound examination of the gonad can be examined even a long time in multiple planes and this is an opportunity for a more accurate ... |
format |
Thesis |
author |
Bacsa, Mónika |
author_facet |
Bacsa, Mónika |
author_sort |
Bacsa, Mónika |
title |
Az ultrahangvizsgálat szerepe a szibériai tokhalak ivarmeghatározásában |
title_short |
Az ultrahangvizsgálat szerepe a szibériai tokhalak ivarmeghatározásában |
title_full |
Az ultrahangvizsgálat szerepe a szibériai tokhalak ivarmeghatározásában |
title_fullStr |
Az ultrahangvizsgálat szerepe a szibériai tokhalak ivarmeghatározásában |
title_full_unstemmed |
Az ultrahangvizsgálat szerepe a szibériai tokhalak ivarmeghatározásában |
title_sort |
az ultrahangvizsgálat szerepe a szibériai tokhalak ivarmeghatározásában |
publishDate |
2013 |
url |
http://hdl.handle.net/10832/997 |
genre |
Siberian sturgeon Siberia |
genre_facet |
Siberian sturgeon Siberia |
op_relation |
http://hdl.handle.net/10832/997 |
_version_ |
1767949004401803264 |