Edição dos resumos da 20ª Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Araxá, 2006

AMORIM, L. S.

BRUSCHI, J. H.

CAMARGO, L. S. A.

FONSECA, J. F.

VIANA, J. H. M.

ZAMBRINI, F. N.

English

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Acta Scientiae Veterinariae 34(Supplement 1): 2006s508SUPEROVULATION IN DOES BASED ON FIRST FOLLICULAR WAVE OF THEESTROUS CYCLEFonseca, J.F.1; Bruschi, J.H.2; Zambrini, F.N.2; Viana, J.H.M.2;Amorim, L.S.2; Camargo, L.S.O.21Embrapa Caprinos, CP D10, Cep 62.011-000, Sobral-CE, Brasil, jeferson@cnpc.embrapa.br.2Embrapa Gado de Leite, Rodovia MG 133, Km 42, 36.155-000, Cel Pacheco-MG, Brasil.The superstimulation of the first ovarian follicular wave of the estrous cycle was tested in seasonalanestrous does. Ten lactation does (2 Saanen and 8 Toggenburg) were assigned to two treatments(T1 and T2). In both treatments, FSH (250UI) was administered in six decreasing doses(25, 25, 15,15, 10 and 10%, respectively) at 12 interval. In T1 (n=5), does received 37.5 mg d-cloprostenol(day 0 morning), CIDR (days 2 to 5), FSH (days 2 to 4), 37.5 mg d-cloprostenol (day 5 morning)and 500 UI hCG (day 7 afternoon). In T2, does received two doses of 37.5 mg d-cloprostenol atseven days interval (days 0 and 7 morning), FSH (day 9 afternoon and day 12 morning), 37.5 mgd-cloprostenol (day 12 morning) and 500 UI hCG (day 14 afternoon). In both treatments, goats notshowed ovarian follicles more than 4 mm diameter at the beginning of FSH administration. Doeswere mated by fertile bucks and received 37.5 mg d-cloprostenol 12 h before transcervical embryorecovery, six to seven days after the beginning of estrus. The percentage of does in estrus after FSHadministration was 100 and 80 % in T1 and T2, respectively. The interval to estrus after second(T1) or third dose of cloprostenol (T 2) and the duration of estrus were 28.8 ± 6.6 h and 36.0 ± 8.5h (T1) and 27.0 ± 6.0 h and 30.0 ± 12.0 h (T2). The average number of structures were recoveredwas 9.4 ± 3.8 (T1) and 10.5 ± 7.6 (T2). The average number of viable embryos recovered was 8.2± 3.5 (T1) and 4.0 ± 7.3 (T2). Both protocols showed to be promising for superovulation in goats.Additionally, it must be emphasized the possibility to obtain embryos from short protocols (14days, T1) or protocols without use of progesterone or progestagen (T2) during the anestrous season.

Superovulation in does based on first follicular wave of the estrous cycle.

http://www.alice.cnptia.embrapa.br/bitstream/doc/595504/1/Superovulation-in-does.pdf

Superovulation in does based on first follicular wave of the estrous cycle.

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