Use of Estradiol Cypionate to induce ovulation in buffalo raised in floodplain areas of Itacoatiara, Amazonas
| Autor: | F. Jacobs Dias, J.H.A. Weiller, M. V. C. Ferraz Junior, Gustavo Yomar Hattori |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
floodplain
media_common.quotation_subject medicine.medical_treatment Insemination SF1-1100 Andrology 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Follicular phase Medicine Ovulation media_common Pregnancy insemination 030219 obstetrics & reproductive medicine General Veterinary business.industry Artificial insemination 0402 animal and dairy science 04 agricultural and veterinary sciences Estradiol cypionate medicine.disease 040201 dairy & animal science Animal culture Pregnancy rate Bubalus bubalis chemistry estradiol esters Estradiol benzoate business medicine.drug |
| Zdroj: | Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.73 n.1 2021 Arquivo brasileiro de medicina veterinária e zootecnia Universidade Federal de Minas Gerais (UFMG) instacron:UFMG Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Vol 73, Iss 1, Pp 41-48 (2021) |
| Popis: | This study aimed to determine the efficiency of estradiol cypionate (EC) as an ovulation inducer in a Timed Artificial Insemination protocol. 69 buffalo cows received an intravaginal progesterone device and 2mg of estradiol benzoate (EB) at D0. On D9, the intravaginal device was removed and 0.53mg of prostaglandin (PGF2α) and 400UI of equine chorionic gonadotrophin (eCG) were applied. The cows were distributed into two groups: the first group received 1mg of EC (ECG) in D9, and the second group received 1mg of EB (EBG) in D10. Inseminations occurred on D11. Ovarian activity and pregnancy diagnosis were analyzed by ultrasonography. There was no difference (P>0.05) in follicular diameter (9.6 ± 0.89mm vs. 10.7 ± 1.12mm; P=0.06), in ovulation rate (90.9% vs. 90.9%; P=1) and pregnancy rate (58.8% vs. 62.9%; P=0.79), however, buffalo cows from the ECG treatment have less time between P4 removal and ovulation when compared to EBG buffalos (37.4h vs. 52.8h; P=0.001), respectively. Thus, it was concluded that the implantation of TAI in the floodplain of Amazonas is feasible and the use of EC results in successful rates, similar to EB. |
| Databáze: | OpenAIRE |
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