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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
26/06/2023 |
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Autoria: |
BOLAND, M. P.; KELLEHER, D.; GORSON, I. |
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Título: |
Comparison of control of oestrous and ovulation in sheep by an ear implant (SC.21009) or by intravaginal sponge (cronolone or MAP). |
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Ano de publicação: |
1979 |
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Fonte/Imprenta: |
Animal Reproduction Science, v. 1, n. 4, p. 275-281, May, 1979. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Oestrus and ovulation were observed in 234 Galway ewes in the breeding season in a preliminary evaluation of an implant progestagen treatment. A miniature ear implant (3 mg SC-21009) was used in a comparison with two intravaginal sponges (30 mg Cronolone and 60 mg medroxy progesterone acetate (MAP)). Each progestagen treatment was used in conjunction with pregnant mare serum gonadotrophin (PMSG) (0, 375 i.u. and 750 i.u.). The percentage of ewes showing oestrus after treatment was significantly affected by progestagen (Cronolone, 95%; MAP, 71%; SC-21009, 74%; P < 0.01), but not by PMSG dose level (0.1 < P < 0.2). Oestrus onset was similar among treatments, but heats ended significantly earlier in implant sheep. Significantly (P < 0.01) more ewes ovulated following Cronolone treatment (92%) than following MAP (74%) or SC-21009 (71%), and there was also a significant effect of PMSG (0, 73%; 375 i.u., 86%; 750 i.u., 93%; P < 0.01). PMSG dose level had a highly significant effect on the mean ovulation rate (0, 1.23; 375 i.u., 1.52; 750 i.u., 2.12; P < 0.001). |
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Palavras-Chave: |
Estro. |
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Thesagro: |
Ovino; Ovulação; Reprodução. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01690naa a2200193 a 4500
001 1520416
005 2023-06-26
008 1979 bl uuuu u00u1 u #d
100 1 $aBOLAND, M. P.
245 $aComparison of control of oestrous and ovulation in sheep by an ear implant (SC.21009) or by intravaginal sponge (cronolone or MAP).$h[electronic resource]
260 $c1979
520 $aAbstract: Oestrus and ovulation were observed in 234 Galway ewes in the breeding season in a preliminary evaluation of an implant progestagen treatment. A miniature ear implant (3 mg SC-21009) was used in a comparison with two intravaginal sponges (30 mg Cronolone and 60 mg medroxy progesterone acetate (MAP)). Each progestagen treatment was used in conjunction with pregnant mare serum gonadotrophin (PMSG) (0, 375 i.u. and 750 i.u.). The percentage of ewes showing oestrus after treatment was significantly affected by progestagen (Cronolone, 95%; MAP, 71%; SC-21009, 74%; P < 0.01), but not by PMSG dose level (0.1 < P < 0.2). Oestrus onset was similar among treatments, but heats ended significantly earlier in implant sheep. Significantly (P < 0.01) more ewes ovulated following Cronolone treatment (92%) than following MAP (74%) or SC-21009 (71%), and there was also a significant effect of PMSG (0, 73%; 375 i.u., 86%; 750 i.u., 93%; P < 0.01). PMSG dose level had a highly significant effect on the mean ovulation rate (0, 1.23; 375 i.u., 1.52; 750 i.u., 2.12; P < 0.001).
650 $aOvino
650 $aOvulação
650 $aReprodução
653 $aEstro
700 1 $aKELLEHER, D.
700 1 $aGORSON, I.
773 $tAnimal Reproduction Science$gv. 1, n. 4, p. 275-281, May, 1979.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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