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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
01/08/1992 |
Data da última atualização: |
09/01/2024 |
Autoria: |
GREYLING, J. P. C.; BRINK, W. C. J. |
Título: |
Synchronization of oestrus in sheep: The use of controlled internal drug release (CIDR) dispensers. |
Ano de publicação: |
1987 |
Fonte/Imprenta: |
South African Animal Science, v. 17, n. 3, p. 128-132, 1987. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: The use of the CIDR (controlled internal drug release) dispenser as a progestagen-synchronizing agent was evaluated in 37 Karakul ewes during the breeding season, using the intravaginal progestagen sponge as a control (30 ewes). Although there was no significant differences in oestrous response, following intravaginal insertion for 14 days, between these two progestagen devices, the time from device withdrawal to the onset of the induced oestrous period (31,2 vs 62,5 h) and the duration of the induced oestrous period (32,7 vs 47,4 h) was significantly (P<0,01) shorter in the CIDR dispenser group. The mean time from device withdrawal to the serum preovulatory LH peak and the interval from the onset of oestrus to the pre-ovulatory LH peak was significantly (P<0,01) earlier in the CIDR dispenser group (28,0 vs 78,0 hand 5,3 vs 17,3 h respectively). No significant difference in the serum progesterone concentrations was noted between the two groups. No significant difference in reproductive performance was obtained with conception, lambing rates and fecundities of 72,2 vs 79,3%; 75,0 vs 89% and 103,8 vs 113,0% for the dispenser and sponge treatment groups respectively. Results confirm the potential of the CIDR dispenser as an efficient synchronizing agent and the more concentrated synchrony obtained makes it ideal for fixed-time insemination.
Die gebruik van die CIDR-dispensor as 'n progestogeen-sinkronisasiemiddel is in 37 Karakoelooie tydens die teelseisoen geevalueer, met die intravaginale progestogeengei'mpregneerde spons as kontrole (30 ooie). Alhoewel daar geen betekenisvolle verskil in estrusrespons na intravaginale toediening vir 14 dae tussen die twee progestogeenbehandelings was nie, was die tydsduur vanaf die einde van behandeling tot die aanvang van estrus (31,2 vs 62,5 h) en die tydsduur van die gei'nduseerde estrusperiode (32,7 vs 47,4 h) betekenisvol (PMenosAbstract: The use of the CIDR (controlled internal drug release) dispenser as a progestagen-synchronizing agent was evaluated in 37 Karakul ewes during the breeding season, using the intravaginal progestagen sponge as a control (30 ewes). Although there was no significant differences in oestrous response, following intravaginal insertion for 14 days, between these two progestagen devices, the time from device withdrawal to the onset of the induced oestrous period (31,2 vs 62,5 h) and the duration of the induced oestrous period (32,7 vs 47,4 h) was significantly (P<0,01) shorter in the CIDR dispenser group. The mean time from device withdrawal to the serum preovulatory LH peak and the interval from the onset of oestrus to the pre-ovulatory LH peak was significantly (P<0,01) earlier in the CIDR dispenser group (28,0 vs 78,0 hand 5,3 vs 17,3 h respectively). No significant difference in the serum progesterone concentrations was noted between the two groups. No significant difference in reproductive performance was obtained with conception, lambing rates and fecundities of 72,2 vs 79,3%; 75,0 vs 89% and 103,8 vs 113,0% for the dispenser and sponge treatment groups respectively. Results confirm the potential of the CIDR dispenser as an efficient synchronizing agent and the more concentrated synchrony obtained makes it ideal for fixed-time insemination.
Die gebruik van die CIDR-dispensor as 'n progestogeen-sinkronisasiemiddel is in 37 Karakoelooie tydens die teelseisoen geevaluee... Mostrar Tudo |
Palavras-Chave: |
LH; Oestrus; Progestagen. |
Thesagro: |
Ciclo Estral; Ovino; Reprodução; Sincronização do Cio. |
Thesaurus Nal: |
Endocrinology; Estrus synchronization; Luteinizing hormone; Progesterone; Reproduction; Sheep. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 03547naa a2200289 a 4500 001 1523008 005 2024-01-09 008 1987 bl uuuu u00u1 u #d 100 1 $aGREYLING, J. P. C. 245 $aSynchronization of oestrus in sheep$bThe use of controlled internal drug release (CIDR) dispensers. 260 $c1987 520 $aAbstract: The use of the CIDR (controlled internal drug release) dispenser as a progestagen-synchronizing agent was evaluated in 37 Karakul ewes during the breeding season, using the intravaginal progestagen sponge as a control (30 ewes). Although there was no significant differences in oestrous response, following intravaginal insertion for 14 days, between these two progestagen devices, the time from device withdrawal to the onset of the induced oestrous period (31,2 vs 62,5 h) and the duration of the induced oestrous period (32,7 vs 47,4 h) was significantly (P<0,01) shorter in the CIDR dispenser group. The mean time from device withdrawal to the serum preovulatory LH peak and the interval from the onset of oestrus to the pre-ovulatory LH peak was significantly (P<0,01) earlier in the CIDR dispenser group (28,0 vs 78,0 hand 5,3 vs 17,3 h respectively). No significant difference in the serum progesterone concentrations was noted between the two groups. No significant difference in reproductive performance was obtained with conception, lambing rates and fecundities of 72,2 vs 79,3%; 75,0 vs 89% and 103,8 vs 113,0% for the dispenser and sponge treatment groups respectively. Results confirm the potential of the CIDR dispenser as an efficient synchronizing agent and the more concentrated synchrony obtained makes it ideal for fixed-time insemination. Die gebruik van die CIDR-dispensor as 'n progestogeen-sinkronisasiemiddel is in 37 Karakoelooie tydens die teelseisoen geevalueer, met die intravaginale progestogeengei'mpregneerde spons as kontrole (30 ooie). Alhoewel daar geen betekenisvolle verskil in estrusrespons na intravaginale toediening vir 14 dae tussen die twee progestogeenbehandelings was nie, was die tydsduur vanaf die einde van behandeling tot die aanvang van estrus (31,2 vs 62,5 h) en die tydsduur van die gei'nduseerde estrusperiode (32,7 vs 47,4 h) betekenisvol (P<O,Ol) korter in die CIDR-dispensorgroep. Die gemiddelde tydsduur vanaf onttrekking tot die voor-ovulasie LH-piek en die interval vanaf die aanvang van estrus en die voor-ovulasie LH-piek was betekenisvol (P<0,01) vroeer in die CIDR-dispensorgroep (28,0 vs 78,0 h en 5,3 vs 17,3 h respektiewelik). Geen betekenisvolle verskil in die serum-progesteroonkonsentrasies is waargeneem tussen die twee groepe nie. Geen betekenisvolle verskil in vrugbaarheidsresultate is verkry met konsepsie, lampersentasie en fekunditeite van 72,2 vs 79,3%; 75,0 vs 89,7% en 103,8 vs 113,0% vir die CIDR-dispensor- en sponsbehandelingsgroepe respektiewelik. Resultate dui op die potensiaal van die CIDR-dispensor as 'n effektiewe sinkronisasiemiddel en die meer gekonsentreerde sinkronisasie verkry, maak dit ideaal vir uitvoering van KI op 'n vasgestelde tyd. 650 $aEndocrinology 650 $aEstrus synchronization 650 $aLuteinizing hormone 650 $aProgesterone 650 $aReproduction 650 $aSheep 650 $aCiclo Estral 650 $aOvino 650 $aReprodução 650 $aSincronização do Cio 653 $aLH 653 $aOestrus 653 $aProgestagen 700 1 $aBRINK, W. C. J. 773 $tSouth African Animal Science$gv. 17, n. 3, p. 128-132, 1987.
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Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
30/05/1994 |
Data da última atualização: |
30/05/1994 |
Autoria: |
MEDEIROS, A. C. de S.; CICERO, S. M.; NASSER, L. C. B.; RODRIGUEZ CASTRO, L. H. |
Título: |
Efeito de diferentes niveis de adubacao e calagem na incidencia de fungos associados a sementes de trigo. |
Ano de publicação: |
1987 |
Fonte/Imprenta: |
In: EMBRAPA. Centro de Pesquisa Agropecuaria dos Cerrados (Planaltina, DF). Relatorio tecnico anual do Centro de Pesquisa Agropecuaria dos Cerrados 1982/1985. Planaltina, 1987. |
Páginas: |
p.158-159. |
Idioma: |
Português |
Palavras-Chave: |
Fertilizers application; Seed; Trigo Triticum aestivum; Wheats. |
Thesagro: |
Adubação; Calagem; Cerrado; Fungo; Semente. |
Thesaurus NAL: |
fungi; liming. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00916naa a2200289 a 4500 001 1548762 005 1994-05-30 008 1987 bl uuuu u00u1 u #d 100 1 $aMEDEIROS, A. C. de S. 245 $aEfeito de diferentes niveis de adubacao e calagem na incidencia de fungos associados a sementes de trigo. 260 $c1987 300 $ap.158-159. 650 $afungi 650 $aliming 650 $aAdubação 650 $aCalagem 650 $aCerrado 650 $aFungo 650 $aSemente 653 $aFertilizers application 653 $aSeed 653 $aTrigo Triticum aestivum 653 $aWheats 700 1 $aCICERO, S. M. 700 1 $aNASSER, L. C. B. 700 1 $aRODRIGUEZ CASTRO, L. H. 773 $tIn: EMBRAPA. Centro de Pesquisa Agropecuaria dos Cerrados (Planaltina, DF). Relatorio tecnico anual do Centro de Pesquisa Agropecuaria dos Cerrados 1982/1985. Planaltina, 1987.
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