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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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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: |
BANGS, C. L.; UNDERWOOD, E. J. |
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Título: |
A comparison of methods of estimating sperm concentration in ram's semen. |
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Ano de publicação: |
1948 |
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Fonte/Imprenta: |
Australian Veterinary Journal, v. 24, n. 4, p. 89-93, 1948. |
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DOI: |
https://doi.org/10.1111/j.1751-0813.1948.tb04628.x |
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Idioma: |
Inglês |
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Conteúdo: |
The densities of 35 samples of rams’ henien were determined 11s two visual inrthocls and a photoelectric method and the relative precision of these methods in estimating sperm concentration calculated by coinparing the results with direct sperm counts, made with the hamocytonieter, on the same samples. With each method highly significant correlatioii and regression coefficients between sperm counts and density deteiminations were found. The correlation coefficients obtained by the photoelectric method at four dilution rates were all significai$ly higher than thnsc ohtaiiied with either of the visual methods. The correlation coefficient obtained by the visual method employing barium sulpliate opacity standards was not significantly higher than that obtained when arbitrary visual "gradins” of the whole semen were carried out by the method of Gunn. The advantages and disadvantages of thest methods, compared with haemocytometer counts, are biefly discussed. |
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Palavras-Chave: |
Andrologia; Semen Analysis; Semen Preservation; Tecnologia de semen. |
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Thesagro: |
Ovino; Reprodução. |
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Thesaurus Nal: |
Rams; Reproduction; Sheep; Spermatozoa. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01734naa a2200265 a 4500
001 1521119
005 2023-06-26
008 1948 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/j.1751-0813.1948.tb04628.x$2DOI
100 1 $aBANGS, C. L.
245 $aA comparison of methods of estimating sperm concentration in ram's semen.$h[electronic resource]
260 $c1948
520 $aThe densities of 35 samples of rams’ henien were determined 11s two visual inrthocls and a photoelectric method and the relative precision of these methods in estimating sperm concentration calculated by coinparing the results with direct sperm counts, made with the hamocytonieter, on the same samples. With each method highly significant correlatioii and regression coefficients between sperm counts and density deteiminations were found. The correlation coefficients obtained by the photoelectric method at four dilution rates were all significai$ly higher than thnsc ohtaiiied with either of the visual methods. The correlation coefficient obtained by the visual method employing barium sulpliate opacity standards was not significantly higher than that obtained when arbitrary visual "gradins” of the whole semen were carried out by the method of Gunn. The advantages and disadvantages of thest methods, compared with haemocytometer counts, are biefly discussed.
650 $aRams
650 $aReproduction
650 $aSheep
650 $aSpermatozoa
650 $aOvino
650 $aReprodução
653 $aAndrologia
653 $aSemen Analysis
653 $aSemen Preservation
653 $aTecnologia de semen
700 1 $aUNDERWOOD, E. J.
773 $tAustralian Veterinary Journal$gv. 24, n. 4, p. 89-93, 1948.
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Embrapa Caprinos e Ovinos (CNPC) |
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| 1. |  | SOUZA, J. C. de; EUCLIDES FILHO, K.; SILVA, L. O. C. da; RAMOS, A. de A.; ALENCAR, M. M. de; GADINI, C. H.; VLECK, L. D. V. Estimativa de parâmetros genéticos para o peso ao desmame de animais da raça Nelore no Brasil. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 34., 1997, Juiz de Fora. Anais... Juiz de Fora: SBZ, 1997. p.251-253.| Tipo: Artigo em Anais de Congresso |
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