Ultrasonography as Aid for Early Pregnancy Diagnosis in Zebu Cattle in a Natural Mating Programme

 

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書誌詳細
著者: Galicia, L. L., Galina, C. S., Pérez, G. E., Molina, S. R., Estrada Konig, Sandra, ROMERO-ZUÑIGA, JUAN JOSÉ
フォーマット: artículo
出版日付:2006
その他の書誌記述:To utilise ultrasonography in Zebu cattle to test early pregnancy, multiparous Bos indicus COWS (n=74) were allocated with 2 mature Brahman bulls, which were replaced with new ones every four weeks. COWS were bled for radioimmunoassay progesterone analysis at the time of ultrasound and four days prior 07' after this event. The efficiency of the ultrasound findings and progesterone levels were compared wit' Kappa index using the computer programme (WIN) EPISCOPE. Ultrasound precision for early pregnancy diagnosis was 96%. Moreover, animals not clearly defined as pregnant, following examination revealed that only 54% were actually pregnant. The efficiency to detect the lack of ovarian activity was only 25% as revealed by progesterone concentrations lower than lngl ml. In contrast, the association between a detectable CL by ultrasound and progesterone values higher than lnglml was 90%. The incidence of embryonic death was 15.4%. Based on these results the efficacy for detecting early pregnancy by ultrasound and the presence of an active CL is satisfactory, whereas the precision to detect non-cycling animal is questionable and the incidence of embryonic death is high.
国:Repositorio UNA
機関:Universidad Nacional de Costa Rica
Repositorio:Repositorio UNA
言語:Inglés
OAI Identifier:oai:null:11056/24256
オンライン・アクセス:https://www.tandfonline.com/loi/taar20
http://hdl.handle.net/11056/24256
https://doi.org/10.1080/09712119.2006.9706570
キーワード:CATTLE
GANADO BOVINO
ULTRASONIDO
ULTRASONOGRAPHY
GESTACIÓN ANIMAL
PREGNANCY DIAGNOSIS