Superovulation of 5/8 girolando cows with different doses of FSHp / Superovulação de vacas 5/8 girolando com diferentes dosagens de FSHp
Santana dos Santos Filho, Antonio; Antonio Lemos Oliveira, Marcos; Rodrigues de Almeida, Reiva.
Ci. Vet. Tróp.
; 1(1): 60-68, 1998.
Artículo
en Portugués
| VETINDEX | ID: vti-479792
The objective was to evaluate the efficiency of three defferent doses of pFSH in the superovulation of thirty 5/8 Girolando cows, which were randomly and quantitatively distributed in three experimental groups (A = 300 UI, 8 = 500 UI and C = 700 UI). The superovulation took place between the ninth and twelth day of the estrus cycle using eight decreasing doses of pFSH, by intramuscular via, in intervals of 12 hours. At the same time of the filth administration of pFSH, the females received, by intramuscular via, 150 a2g of cloprostenol (pGFp). The artificial inseminations (AI) were performed at 12 and 24 hours after standing estrus and the embryos recovery, by transcervical via, between the sixth and eigth days alter the first AI. With the exception of a donor of group A, the other amimals showed estrus within 36 to 56 hours alter PGFp administration. The average values of the structure were 0.2±0.6 (A), 4.0±3.5 (8), and 0.8±1.3 (C) and the viable structures were 0.2±0.6 (A), 3.3±3.5 (8) and 0.5±O.9 (C), which represent 100% (A), 81.5% (8) and 64.7% (C) of embryonic viability. It was verified that the achieved results of group 8 were higher (P 0.05) than those of groups A and C, which lead to conclude that if the dose of 500 UI of pFSH is not ideal, at least it seems to be the most advisable to ne used in 5/8 Girolando breed.
Biblioteca responsable:
BR68.1
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