|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
19/11/2003 |
Data da última atualização: |
28/08/2023 |
Autoria: |
SÁNCHEZ-PARTIDA, L. G.; WINDSOR, D. P.; EPPLESTON, J.; SETCHELL, B. P.; CHISHOLM MAXWELL, W. M. |
Título: |
Fertility and its relationship to motility characteristics of spermatozoa in ewes after cervical, transcervical, and intrauterine insemination with frozen-thawed ram semen. |
Ano de publicação: |
1999 |
Fonte/Imprenta: |
Journal of Andrology, v. 20, n. 2, p. 280-288, Mar./Apr. 1999. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: The fertility of ewes after artificial insemination and the relationship between fertility and motility characteristics assessed by a computerized motility analysis system were examined with ram semen frozen in diluents reported to improve postthaw motility. The percentages of motile and progressive spermatozoa were better when frozen in proline- or glycine betaine-containing or HEPES-based, rather than Tris-based, diluents (P < 0.01). The fertility of spermatozoa frozen in diluents containing proline or glycine betaine was slightly reduced, whereas when both compatible solutes were present, the reduction was more pronounced, in comparison with semen frozen in Tris- or HEPES-based diluents (9.5 versus 71.1 and 66.6%; P < 0.01). Fertility of frozen-thawed spermatozoa was higher after laparoscopic insemination than after cervical or transcervical insemination (P < 0.01). Similarly, higher fertility was obtained after cervical insemination with fresh than with frozen-thawed semen (32.4 versus 11.3%; P < 0.01). Furthermore, loss of embryos was lower after laparoscopic insemination of ewes with semen frozen in a Tris diluent than with semen frozen in proline diluents, in glycine betaine diluents, or in proline-plus-glycine betaine diluents (0.0 versus 26.0, 38.5, and 60.0%; P < 0.001). A wide variation in the postthaw percentage of motile (31.6-59.7%) and progressive (22.6-43.1%) spermatozoa and in the fertility of spermatozoa from individual rams was also observed after laparoscopic (29.2-59.7%) or cervical insemination (8.7-30.5%). Postthaw motility results from immediately after thawing and fertility results from experiments where intrauterine insemination was performed with semen frozen in proline- or glycine betaine-containing or HEPES- or Tris-based diluents were pooled and subjected to a pairwise correlation procedure. The correlation analysis showed relationships between some of the motility characteristics (P < 0.01), but there were no relationships between the motility characteristics and fertility. MenosAbstract: The fertility of ewes after artificial insemination and the relationship between fertility and motility characteristics assessed by a computerized motility analysis system were examined with ram semen frozen in diluents reported to improve postthaw motility. The percentages of motile and progressive spermatozoa were better when frozen in proline- or glycine betaine-containing or HEPES-based, rather than Tris-based, diluents (P < 0.01). The fertility of spermatozoa frozen in diluents containing proline or glycine betaine was slightly reduced, whereas when both compatible solutes were present, the reduction was more pronounced, in comparison with semen frozen in Tris- or HEPES-based diluents (9.5 versus 71.1 and 66.6%; P < 0.01). Fertility of frozen-thawed spermatozoa was higher after laparoscopic insemination than after cervical or transcervical insemination (P < 0.01). Similarly, higher fertility was obtained after cervical insemination with fresh than with frozen-thawed semen (32.4 versus 11.3%; P < 0.01). Furthermore, loss of embryos was lower after laparoscopic insemination of ewes with semen frozen in a Tris diluent than with semen frozen in proline diluents, in glycine betaine diluents, or in proline-plus-glycine betaine diluents (0.0 versus 26.0, 38.5, and 60.0%; P < 0.001). A wide variation in the postthaw percentage of motile (31.6-59.7%) and progressive (22.6-43.1%) spermatozoa and in the fertility of spermatozoa from individual rams was also observed afte... Mostrar Tudo |
Palavras-Chave: |
Semen preservation. |
Thesaurus Nal: |
Animal fertility; Artificial insemination; Cryopreservation; Fetal death; Males; Pregnancy rate; Reproduction; Sheep; Sperm motility; Spermatozoa. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 03017naa a2200301 a 4500 001 1525004 005 2023-08-28 008 1999 bl uuuu u00u1 u #d 100 1 $aSÁNCHEZ-PARTIDA, L. G. 245 $aFertility and its relationship to motility characteristics of spermatozoa in ewes after cervical, transcervical, and intrauterine insemination with frozen-thawed ram semen.$h[electronic resource] 260 $c1999 520 $aAbstract: The fertility of ewes after artificial insemination and the relationship between fertility and motility characteristics assessed by a computerized motility analysis system were examined with ram semen frozen in diluents reported to improve postthaw motility. The percentages of motile and progressive spermatozoa were better when frozen in proline- or glycine betaine-containing or HEPES-based, rather than Tris-based, diluents (P < 0.01). The fertility of spermatozoa frozen in diluents containing proline or glycine betaine was slightly reduced, whereas when both compatible solutes were present, the reduction was more pronounced, in comparison with semen frozen in Tris- or HEPES-based diluents (9.5 versus 71.1 and 66.6%; P < 0.01). Fertility of frozen-thawed spermatozoa was higher after laparoscopic insemination than after cervical or transcervical insemination (P < 0.01). Similarly, higher fertility was obtained after cervical insemination with fresh than with frozen-thawed semen (32.4 versus 11.3%; P < 0.01). Furthermore, loss of embryos was lower after laparoscopic insemination of ewes with semen frozen in a Tris diluent than with semen frozen in proline diluents, in glycine betaine diluents, or in proline-plus-glycine betaine diluents (0.0 versus 26.0, 38.5, and 60.0%; P < 0.001). A wide variation in the postthaw percentage of motile (31.6-59.7%) and progressive (22.6-43.1%) spermatozoa and in the fertility of spermatozoa from individual rams was also observed after laparoscopic (29.2-59.7%) or cervical insemination (8.7-30.5%). Postthaw motility results from immediately after thawing and fertility results from experiments where intrauterine insemination was performed with semen frozen in proline- or glycine betaine-containing or HEPES- or Tris-based diluents were pooled and subjected to a pairwise correlation procedure. The correlation analysis showed relationships between some of the motility characteristics (P < 0.01), but there were no relationships between the motility characteristics and fertility. 650 $aAnimal fertility 650 $aArtificial insemination 650 $aCryopreservation 650 $aFetal death 650 $aMales 650 $aPregnancy rate 650 $aReproduction 650 $aSheep 650 $aSperm motility 650 $aSpermatozoa 653 $aSemen preservation 700 1 $aWINDSOR, D. P. 700 1 $aEPPLESTON, J. 700 1 $aSETCHELL, B. P. 700 1 $aCHISHOLM MAXWELL, W. M. 773 $tJournal of Andrology$gv. 20, n. 2, p. 280-288, Mar./Apr. 1999.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Unidades Centrais. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
25/05/1994 |
Data da última atualização: |
07/07/2011 |
Autoria: |
ESPINOZA GARRIDO, W. |
Afiliação: |
EMBRAPA-DEP. |
Título: |
A estiagem como fator de risco da agricultura anual de sequeiro nos cerrados:sua atenuação através do manejo de solo e cultura. |
Ano de publicação: |
1985 |
Fonte/Imprenta: |
Brasília, DF: EMBRAPA-DEP, 1985. |
Páginas: |
Não paginado. |
Idioma: |
Português |
Notas: |
Trabalho apresentado no Workshop sobre Rede de Pesquisa em Fertilidade do Solo. Brasília, DF, EMBRAPA-CPAC, 25/02-08/03/1985. |
Palavras-Chave: |
Brasil; Cultivar; Deficit hidrico; Regiao centro-oeste; Retencao; Tolerancia. |
Thesagro: |
Água; Emergência; Grão; Manejo; Polinização; Solo; Variedade. |
Thesaurus NAL: |
agriculture; Brazil; drought; savannas. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00970nam a2200325 a 4500 001 1083682 005 2011-07-07 008 1985 bl uuuu u0uu1 u #d 100 1 $aESPINOZA GARRIDO, W. 245 $aA estiagem como fator de risco da agricultura anual de sequeiro nos cerrados$bsua atenuação através do manejo de solo e cultura. 260 $aBrasília, DF: EMBRAPA-DEP$c1985 300 $aNão paginado. 500 $aTrabalho apresentado no Workshop sobre Rede de Pesquisa em Fertilidade do Solo. Brasília, DF, EMBRAPA-CPAC, 25/02-08/03/1985. 650 $aagriculture 650 $aBrazil 650 $adrought 650 $asavannas 650 $aÁgua 650 $aEmergência 650 $aGrão 650 $aManejo 650 $aPolinização 650 $aSolo 650 $aVariedade 653 $aBrasil 653 $aCultivar 653 $aDeficit hidrico 653 $aRegiao centro-oeste 653 $aRetencao 653 $aTolerancia
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|