Induction of ovulation in quarter horse mares through the use of deslorelin acetate and human chorionic gonadotrophin (hCG)



Título del documento: Induction of ovulation in quarter horse mares through the use of deslorelin acetate and human chorionic gonadotrophin (hCG)
Revista: Brazilian archives of biology and technology
Base de datos: PERIÓDICA
Número de sistema: 000337674
ISSN: 1516-8913
Autores: 1

2
1
3
3
4
Instituciones: 1Pontificia Universidade Catolica do Parana, Faculdade de Medicina, Sao Jose dos Pinhais, Parana. Brasil
2Pontificia Universidade Catolica do Parana, Faculdade de Medicina Veterinaria, Curitiba, Parana. Brasil
3Universidade Federal do Parana, Departamento de Medicina Veterinaria, Curitiba, Parana. Brasil
4Universidade Federal do Parana, Programa em Processos Biotecnologicos, Curitiba, Parana. Brasil
Año:
Periodo: May-Jun
Volumen: 54
Número: 3
Paginación: 517-521
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, analítico
Resumen en inglés The aim this study was to compare two protocols of induction for ovulation by desloreline acetate and hCG in Quarter Horse mares. The choice of the animals was based on the observations by the estrus, by rectal palpation of the ovaries and by ultrassonography of the follicular dynamics. After estrus detection and follicle control, the measurement of the follicles and the classification of uterus were carried out. The animals that had dominant follicle (diameter more than 35 mm) and swollen uterus were used. In these conditions, the mares received hCG or desloreline acetate. Once ovulation occurred, the artificial insemination was carried. Two groups were performed: G1 (20 animals) received 1.5 mg desloreline acetate and G2 (20 animals) received 1700 IU of hCG. Following 6h intervals, the control follicular was performed by ultrasonography. The follicular average diameter was 42.6 cm for the groups and set up a score of 0 to 3 of uterine edema displayed by the device as well as the time of ovulation. In conclusion, the desloreline acetate showed better performance than hCG, because the ovulation was induced in less time (nine hours than hCG) (p<0.05).The pregnancy rate was 80 and 75 %, respectively in G1 and G2
Disciplinas: Medicina veterinaria y zootecnia
Palabras clave: Equinos,
Zootecnia,
Reproducción y desarrollo,
Cuarto de Milla,
Ovulación,
Acetato de deslorelina,
Gonadotropina coriónica humana (hCG)
Keyword: Veterinary medicine and animal husbandry,
Animal husbandry,
Equines,
Reproduction and development,
Quarter horses,
Deslorelin acetate,
Ovulation,
Human chorionic gonadotropin (hCG)
Texto completo: Texto completo (Ver HTML)