| |
|
|
 | 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: |
11/12/1995 |
|
Data da última atualização: |
04/05/2023 |
|
Autoria: |
LINDSAY, D. R. |
|
Título: |
Sexual activity and semen production of rams at high temperatures. |
|
Ano de publicação: |
1969 |
|
Fonte/Imprenta: |
Journal of Reproduction and Fertility, v. 18, n. 1, p. 1-8, Feb. 1969. |
|
DOI: |
DOI:10.1530/JRF.0.0180001 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract: The sexual activity of groups of Merino, Dorset Horn and Border Leicester rams, from which weekly semen collections were made by artificial vagina, was studied at controlled temperatures from 27 to 43\s=deg\C. Only Merino rams maintained sexual activity at the highest temperature (43\s=deg\C). Dorset Horns recovered activity after the temperature was lowered but Border Leicesters did not. Semen motility was poor at high temperatures in all but two rams, both Dorset Horns. The Merino rams had shorter reaction times than the other breeds. There was no significant correlation between reaction time and number of ejaculates. The rectal temperatures of the Dorset Horn rams were 0\m=.\3 to 0\m=.\4\s=deg\C lower than those of the Border Leicesters; Merinos were intermediate. At a given ambient temperature, rams had lower rectal temperatures after severe heating than before, apparently owing to increased thermoregulatory ability. Mounting and ejaculation resulted in virtually no rise in rectal temperature. |
|
Thesagro: |
Comportamento Sexual; Ovino; Reprodução; Sêmen. |
|
Thesaurus Nal: |
Reproduction; Sexual behavior; Sheep. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
Marc: |
LEADER 01647naa a2200217 a 4500
001 1523604
005 2023-05-04
008 1969 bl uuuu u00u1 u #d
024 7 $aDOI:10.1530/JRF.0.0180001$2DOI
100 1 $aLINDSAY, D. R.
245 $aSexual activity and semen production of rams at high temperatures.$h[electronic resource]
260 $c1969
520 $aAbstract: The sexual activity of groups of Merino, Dorset Horn and Border Leicester rams, from which weekly semen collections were made by artificial vagina, was studied at controlled temperatures from 27 to 43\s=deg\C. Only Merino rams maintained sexual activity at the highest temperature (43\s=deg\C). Dorset Horns recovered activity after the temperature was lowered but Border Leicesters did not. Semen motility was poor at high temperatures in all but two rams, both Dorset Horns. The Merino rams had shorter reaction times than the other breeds. There was no significant correlation between reaction time and number of ejaculates. The rectal temperatures of the Dorset Horn rams were 0\m=.\3 to 0\m=.\4\s=deg\C lower than those of the Border Leicesters; Merinos were intermediate. At a given ambient temperature, rams had lower rectal temperatures after severe heating than before, apparently owing to increased thermoregulatory ability. Mounting and ejaculation resulted in virtually no rise in rectal temperature.
650 $aReproduction
650 $aSexual behavior
650 $aSheep
650 $aComportamento Sexual
650 $aOvino
650 $aReprodução
650 $aSêmen
773 $tJournal of Reproduction and Fertility$gv. 18, n. 1, p. 1-8, Feb. 1969.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 2 | |
| Registros recuperados : 2 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
