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Details van artikel 2 van 12 gevonden artikelen
| Titel: |
Application de l'échographie à l'étude de la dynamique folliculaire à l'oestrus induit chez les femelles zébu 'Goudali' |
| Auteur: |
Pitala, W. Boly, H. Zongo, M. Coulibaly, I. Sousa, NM. Sawadogo, L. Leroy, P. Beckers, JF. |
| Verschenen in: |
Tropicultura |
| Paginering: | Jaargang 22 (2004) nr. 3 pagina's 110-115 |
| Jaar: |
2004 |
| Inhoud: |
Application of Ultrasonography to the Investigation of Follicular Dynamic in Synchronized 'Goudali' Zebu Females. A transrectal ultrasonography was used to follow the follicular dynamics in 8 'Goudali' zebu females. Three treatments were used to synchronize estrus: Group 1: Crestar implant associated to PGF2 and PMSG (n= 4); Group 2: Crestar implant associated to PMSG (n= 2) and Group 3: Crestar implant associated to PGF2 (n= 2). The ultrasonographic examinations were performed as follows: day of implant introduction, day of implant removal, and at 4 hour interval between the 28th and the 56th hour after implant removal. The ovaries were examined 7 days after ovulation to determine the number of corpora lutea. The numbers of 2-3 mm diameter follicles observed at the day of implant removal were 5.8 ± 2.2; 3.5 ± 0.7 et 4.5 ± 0.7, respectively for Groups 1, 2 and 3. At the beginning of estrus (30.4 ± 4.9 hours after implant removal), a mean of 4.1 ± 1.3 follicles with 5-6 mm of diameter has been observed for the 3 groups. At the 36th hour after the end of the synchronization treatment, a mean of 1.1 ± 0.4 dominant follicles (> 8 mm) was observed. The diameter of pre-ovulatory follicles did not vary among groups. The first ovulations have been observed between 22 to 26 hours after the beginning of estrus. |
| Uitgever: |
Agri-overseas (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 2 van 12 gevonden artikelen
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