Correlação entre o California Mastitis Test (CMT) e a Contagem de Células Somáticas (CCS) do leite de búfalas Murrah
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Data
2005-12-01
Autores
Jorge, Andre Mendes [UNESP]
Andrighetto, Cristiana [UNESP]
Strazza, Mara Regina Barzon [UNESP]
Correa, Rita de Cássia [UNESP]
Kasburgo, Débora Galhardo [UNESP]
Piccinin, Adriana [UNESP]
Victória, Cassiano [UNESP]
Domingues, Paulo Francisco [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Zootecnia
Resumo
O objetivo neste trabalho foi estimar as correlações entre o California Mastitis Test (CMT), a contagem células somáticas (CCS) e a produção de leite. Foram colhidas 544 amostras de leite de 38 búfalas em lactação nos anos de 2002 e 2003. O manejo de ordenha consistiu em uma ordenha diária, em que os tetos das búfalas eram desinfectados com solução de iodo, secos individualmente com papel toalha e submetidas à ordenha mecânica. O CMT foi realizado imediatamente após higienização dos tetos e as amostras de leite foram enviadas ao laboratório do DHVSP da Unesp/Botucatu, para realização da Contagem de Células Somáticas, em aparelho eletrônico Somacount 300. Foram efetuadas correlações entre Contagem de Células Somáticas, CMT, produção de leite, proteína, gordura e sólidos totais, que foram analisadas pelo SAEG (1997). A média de células somáticas foi de 63.380 células/mL, a produção diária de leite, de 4,07 ± 1,3 kg e a produção ajustada para os 270 dias, de 1214,25 ± 293,54 kg. Não foram encontradas correlações entre produção de leite, contagem de células somáticas e CMT. Para CCS e CMT, a correlação foi positiva e significativa (r = 0,53).
The objective of this trial was to investigate correlations among the California Mastitis Test, somatic cells count (SCC), and milk yield. Milk samples were collected from thirty-eight Murrah buffalo cows in the years of 2002 and 2003. Milking management included cleaning teats with individual paper towel followed by attachment of the milk units in cows that were milked once daily. The CMT was done immediately after teat cleaning and collected milk samples were sent to the laboratory for determination of SCC using a Somacount 300. Correlations including variables such as SCC, CMT, milk yield, and percentages of fat, protein, and total solids were done using SAEG (1997). Somatic cells count averaged 63.380 cells/mL while average milk production and milk production adjusted for 270 days were 4.07 ± 1.3 kg and 1214.25 ± 293.54 kg, respectively. No significant correlations between milk yield and SCC and milk yield and CMT were observed in this study. However, a positive and significant correlation (0.53) between SCC and CMT was found.
The objective of this trial was to investigate correlations among the California Mastitis Test, somatic cells count (SCC), and milk yield. Milk samples were collected from thirty-eight Murrah buffalo cows in the years of 2002 and 2003. Milking management included cleaning teats with individual paper towel followed by attachment of the milk units in cows that were milked once daily. The CMT was done immediately after teat cleaning and collected milk samples were sent to the laboratory for determination of SCC using a Somacount 300. Correlations including variables such as SCC, CMT, milk yield, and percentages of fat, protein, and total solids were done using SAEG (1997). Somatic cells count averaged 63.380 cells/mL while average milk production and milk production adjusted for 270 days were 4.07 ± 1.3 kg and 1214.25 ± 293.54 kg, respectively. No significant correlations between milk yield and SCC and milk yield and CMT were observed in this study. However, a positive and significant correlation (0.53) between SCC and CMT was found.
Descrição
Palavras-chave
Murrah, contagem de células somáticas, California Mastitis Test, produção de leite, Murrah, somatic count cells, California Mastitis Test, milk yield
Como citar
Revista Brasileira de Zootecnia. Sociedade Brasileira de Zootecnia, v. 34, n. 6, p. 2039-2045, 2005.