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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
11/08/2004 |
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Data da última atualização: |
11/08/2004 |
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Autoria: |
MOTLOMELO, K. C.; GREYLING, J. P. C.; SCHWALBACH, L. M. J. |
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Título: |
Synchronisation of oestrus in goats: the use of different progestagen treatments. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Small Ruminant Research, v. 45, n. 1, p. 45-49, 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
The efficiency of medroxyprogesterone acetate (MAP), fluorogestone acetate (FGA) sponges and controlled internaI drug release (CIDR) devices for synchronising oestrus in goats was evaluated during the natural breeding season. Ninety does (42 boer goal and 48 indigenous goals) were assigned to Gloup A (n = 30) 60 mg MAP, Group B (n = 30) 40 mg FGA and Group C (n = 30) CIDR devices. Intravaginal progestagen was administered for a 16-day period. Upon progestagen withdrawal, does received 300 lU PMSG intramuscularly. Cervical inseminations with fresh diluted semen at a fixed time (48 and 60 h) followed progestagen withdrawal. The three progestagen treatments did not show significant differences in oestrous response (97%) and duration (33.3 + 13.4) of the induced oestrous period. Time to the onset of oestrus significantly advanced in the CillR (27.2+ 0.4 h)poup, when compared to FGA the (30.9+ 0.4 h) and MAP (32.2 +0.5 h) groups. The mean serurn progesterone concentrations in the CIDR group were higher (P < 0.05) between days 4 and 16 of progestagen treatment, compared to the MAP and FGA groups. No significant difference was observed with respect to pregnancy rate 40 days after AI (52, 60 and 47% for CIDR, MAP and FGA groups, respectively). Results indicate that the use of MAP, FGA and CIDR intravaginal progestagen treatments are equally efficient in synchronising oestrus in goats. |
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Palavras-Chave: |
Estro; Sincronização. |
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Thesagro: |
Caprino; Ciclo Estral; Progesterona; Reprodução Animal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02006naa a2200217 a 4500
001 1530681
005 2004-08-11
008 2002 bl uuuu u00u1 u #d
100 1 $aMOTLOMELO, K. C.
245 $aSynchronisation of oestrus in goats$bthe use of different progestagen treatments.
260 $c2002
520 $aThe efficiency of medroxyprogesterone acetate (MAP), fluorogestone acetate (FGA) sponges and controlled internaI drug release (CIDR) devices for synchronising oestrus in goats was evaluated during the natural breeding season. Ninety does (42 boer goal and 48 indigenous goals) were assigned to Gloup A (n = 30) 60 mg MAP, Group B (n = 30) 40 mg FGA and Group C (n = 30) CIDR devices. Intravaginal progestagen was administered for a 16-day period. Upon progestagen withdrawal, does received 300 lU PMSG intramuscularly. Cervical inseminations with fresh diluted semen at a fixed time (48 and 60 h) followed progestagen withdrawal. The three progestagen treatments did not show significant differences in oestrous response (97%) and duration (33.3 + 13.4) of the induced oestrous period. Time to the onset of oestrus significantly advanced in the CillR (27.2+ 0.4 h)poup, when compared to FGA the (30.9+ 0.4 h) and MAP (32.2 +0.5 h) groups. The mean serurn progesterone concentrations in the CIDR group were higher (P < 0.05) between days 4 and 16 of progestagen treatment, compared to the MAP and FGA groups. No significant difference was observed with respect to pregnancy rate 40 days after AI (52, 60 and 47% for CIDR, MAP and FGA groups, respectively). Results indicate that the use of MAP, FGA and CIDR intravaginal progestagen treatments are equally efficient in synchronising oestrus in goats.
650 $aCaprino
650 $aCiclo Estral
650 $aProgesterona
650 $aReprodução Animal
653 $aEstro
653 $aSincronização
700 1 $aGREYLING, J. P. C.
700 1 $aSCHWALBACH, L. M. J.
773 $tSmall Ruminant Research$gv. 45, n. 1, p. 45-49, 2002.
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Embrapa Caprinos e Ovinos (CNPC) |
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