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Post-treatment sequential ultrasound imaging of follicular cyst in a crossbred dairy cow

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Abstract

Several studies in dairy cattle have investigated the final outcome of different treatment regimens in follicular cyst condition. However, sequential monitoring of the response of follicular cysts to these treatments is rather scanty. In this paper, we present the response of a large follicular cyst in a pluriparous crossbred dairy cow with prolonged conception failure to human chorionic gonadotropin, hCG (3,000 IU; day 0) and cloprostenol (500 μg; day 9) treatment. Using transrectal ultrasonography (USG), reproductive tract was imaged daily beginning day 0 until day 11. The follicular cyst showed a consistent regression to a very small anechoic area on day 7 and was undetectable thereafter. Concurrently, there was development of a new dominant follicle that was first detected on day 4 and showed progressive growth to preovulatory stage. The cow was inseminated and ovulation occurred, as diagnosed by the presence of a corpus luteum (CL) 7 days later, but conception did not occur. The animal was re-inseminated after estrus detection in the estrous cycle that immediately followed. Pregnancy diagnosis was performed on 30 and 60 days post-insemination (DPI) and the cow was confirmed to be pregnant. This paper underscores the importance of diagnostic ultrasound in veterinary medicine, especially in the management of reproductive problems.

Riassunto

Molti studi sui bovini da latte hanno indagato l’esito dei diversi trattamenti in presenza di cisti follicolari, tuttavia, il monitoraggio della risposta a questi trattamenti è piuttosto scarso, nella letteratura. In questo articolo presentiamo la risposta di una voluminosa cisti follicolari in una mucca da latte pluripara, con prolungata incapacità alla procreazione, al trattamento con gonadotropina corionica umana, hCG (3000 UI; giorno 0) e cloprostenolo (500 mcg; giorno 9). Utilizzando l’ ecografia transrettale (USG), è stato valutato l’apparato riproduttivo quotidianamente dall’inizio, giorno 0, fino all’ 11° giorno. La cisti follicolare ha mostrato una regressione costante fino ad apparire come una formazione molto piccola, anecogena, il giorno 7 e in seguito non era più rilevabile. Contemporaneamente c’è stato lo sviluppo di un nuovo follicolo dominante, che è stato rilevato la prima volta il giorno 4, ed ha mostrato una crescita progressiva fino alla fase preovulatoria. La mucca è stata inseminata e si è verificata l’ovulazione, come diagnosticato dalla presenza di un corpo luteo (CL), sette giorni più tardi, ma il non vi è stato concepimento. L’animale è stato ri-inseminato nel ciclo mestruale immediatamente successivo. La diagnosi di gravidanza è stata eseguita il 30° e il 60° giorni dopo l’inseminazione (DPI) e la mucca era realmente incinta. Questo articolo sottolinea l’importanza della diagnostica ecografica in medicina veterinaria, in particolare nella gestione dei problemi riproduttivi.

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Acknowledgments

The authors are thankful to Rahul Katiyar, and Sanjay Agarwal for their help with recording ultrasound images and to Purushottam Sharma, Puran, and Rajdev Yadav for assistance with animal handling and restraint during the study.

Conflict of interest

F. A. Khan, Muqtaza Manzoor Khan, Shiv Prasad declare that they have no conflict of interest related to this paper.

Human and animal studies

The study was conducted in accordance with all institutional and national guidelines for the care and use of laboratory animals.

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Correspondence to F. A. Khan.

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Khan, F.A., Khan, M.M. & Prasad, S. Post-treatment sequential ultrasound imaging of follicular cyst in a crossbred dairy cow. J Ultrasound 18, 67–70 (2015). https://doi.org/10.1007/s40477-013-0052-7

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  • DOI: https://doi.org/10.1007/s40477-013-0052-7

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