Progesterona inyectable previo a un protocolo de sincronización de la ovulación en vaquillas prepúberes

The objective of this research was to evaluate the use of injectable progesterone in prepubescent heifers prior to an estrus synchronization protocol. Seventy-seven crossbred Zebu heifers, with no presence of a corpus luteum, a body condition score of 2.5, a body weight greater than 200 kg, and an age older than 15 months were used. They were administered 1.5 ml (225 mg) of Sincrogest® intramuscularly, 24 days before starting the fixed-time artificial insemination (IATF) program. The data were analyzed using the InfoStat statistical package (2020) through Student's t-test and Pearson correlation. The uterine diameter of the heifers in the study significantly increased from 15.84 mm to 17.94 mm after the administration of injectable Sincrogest®. The conception rate was 57%, indicating a positive response to the applied treatment. In conclusion, this study demonstrated that there is no correlation between the application of injectable progesterone, weight, and conception rate (r: 0.09). KEYWORDS Reproduction, Artificial Insemination, Biotechnology, Bovine, Biotechnology, Cattle, prepuberal.

• Автор: Barberán Saldarriaga, Limberg Miguel (author)
• Інші автори: López Zambrano, Paolo Omar (author)
• Формат: bachelorThesis
• Мова: spa
• Опубліковано: 2024
• Предмети: Reproducción; Inseminación Artificial; Biotecnología; Bovino; Prepúber
• Онлайн доступ: http://repositorio.espam.edu.ec/handle/42000/2583