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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: |
02/04/1996 |
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Data da última atualização: |
18/07/2023 |
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Autoria: |
SHELDRAKE, R. F.; HOARE, R. J. T; WOODHOUSE, V. E. |
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Título: |
Relationship of somatic cell count and cell volume analysis of goat's milk to intramammary infection with coagulase-negative staphylococci. |
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Ano de publicação: |
1981 |
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Fonte/Imprenta: |
Journal of Dairy Research, v. 48, n. 3, p. 393-403, Oct. 1981. |
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DOI: |
10.1017/s0022029900021877. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The prevalence of intramammary infection in 4 commercial goat herds was studied in conjunction with electronic somatic cell count and volume analysis, determined using a Coulter Counter and volume analyser. Neither streptococci nor mycoplasma were isolated from any half and the prevalence of intramammary infection with Staphylococcus aureus ranged from 0 to 3% between herds. For coagulase-negative staphylococci the range for infected halves was 36?71%. There was no significant difference between the mean total microscopic somatic cell count for halves infected with coagulase-negative staphylococci and those free from infection. A similar trend was observed for electronic somatic cell counts although the mean electronic cell count was greater than the mean total microscopic count on the 2 occasions that they were compared. The correlation coefficients between the 2 cell counting methods were 0·86 and 0·94. Between herds there were significant differences in mean electronic somatic cell count, with herd means ranging from 438×103 to 1684×103 cells/ml. In 2 of the 4 herds studied, milk samples from halves infected with coagulase-negative staphylococci had a significantly higher prevalence of cell volume distributions with a modal cell volume between 65 µ3 and 100 µ3. This was attributed to a higher proportion of polymorphonuclear neutrophils. Use of electronic somatic cell count and cell volume analysis were considered of little value in predicting infection caused by coagulase-negative staphylococci as there was a high proportion of false negative and false positive predictions. MenosAbstract: The prevalence of intramammary infection in 4 commercial goat herds was studied in conjunction with electronic somatic cell count and volume analysis, determined using a Coulter Counter and volume analyser. Neither streptococci nor mycoplasma were isolated from any half and the prevalence of intramammary infection with Staphylococcus aureus ranged from 0 to 3% between herds. For coagulase-negative staphylococci the range for infected halves was 36?71%. There was no significant difference between the mean total microscopic somatic cell count for halves infected with coagulase-negative staphylococci and those free from infection. A similar trend was observed for electronic somatic cell counts although the mean electronic cell count was greater than the mean total microscopic count on the 2 occasions that they were compared. The correlation coefficients between the 2 cell counting methods were 0·86 and 0·94. Between herds there were significant differences in mean electronic somatic cell count, with herd means ranging from 438×103 to 1684×103 cells/ml. In 2 of the 4 herds studied, milk samples from halves infected with coagulase-negative staphylococci had a significantly higher prevalence of cell volume distributions with a modal cell volume between 65 µ3 and 100 µ3. This was attributed to a higher proportion of polymorphonuclear neutrophils. Use of electronic somatic cell count and cell volume analysis were considered of little value in predicting infection caused by... Mostrar Tudo |
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Palavras-Chave: |
Cell Count; Estafilococus; Mastite; Staphylococcal Infections. |
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Thesagro: |
Caprino; Doença; Infecção; Microbiologia. |
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Thesaurus Nal: |
Goat diseases; Goat milk; Goats; Mastitis; Microbiology; Pregnancy. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| 4. |  | ROSENTHAL, A. Suco de frutas por alta pressão. Coordenação: Luciana Leitão Mendes; Organização: Telmo Souza; Angela Furtado; Esdras Sundfeld. In: Construção de uma estratégia de comunicação dirigida para a divulgação de tecnologias da Embrapa Agroindústria de Alimentos. Rio de Janeiro: Embrapa Agroindústria de Alimentos, 2014. 1 CD-ROM, [37 min.], son., color.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 5. | | ROSENTHAL, A. High pressure processing: Advances and trends. In: CIGR INTERNATIONAL TECHNICAL SYMPOSIUM, 9., 2015, Auckland. Creating value from Bioresources Through Novel Technologies: proceedings... Auckland: Massey University, 2015. p. 31| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 13. | | DELIZA, R.; ROSENTHAL, A. Inovação e o consumidor. In: ROSENTHAL, A. (Ed.). Tecnologia de alimentos e inovação: tendências e perspectivas. Brasília, DF: Embrapa Informação Tecnológica, 2008. cap. 6, p. 73-90.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| Registros recuperados : 389 | |
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