Milk microbiological profile of four dairy farms from São Paulo State, Brazil / Perfil microbiológico do leite de quatro propriedades do Estado de São Paulo, Brasil
Crisleia Rodrigues Monção, Adna; Rodrigues Pozzi Arcaro, Juliana; Pereira Motta, Thiago; Castelani, Lívia; Martins, Thamires; Frizzarin, Adriana; de Azevedo, Heloisa; Rodrigues Pozzi, Cláudia.
B. Indústr. Anim.;
69: 60-60, 2012.
Artigo
em Português
| VETINDEX
| ID: vti-468045
Resumo
The concern in milk quality, milk production, and in animals welfare is in constant increase. Mastitis is recognized as the main disease affecting dairy animals because of changing in milk composition and reduction in milk production. In Brazil, the highest incidence of mastitis is related to infectious agents. This study aimed to investigate the incidence of pathogenic microorganisms in milk produced by 60 cows from four dairy farms (15 cows/farm) located at Sao Paulo state, Brazil. Milk samples from each teat were collected fortnight in sterile tubes, previously identified, during two months. In each herd 240 samples were obtained, except on the farm A, where an extra collection was done, in a total amount of 300 samples. On the farm A, the sampling was done in a period of transition between the dry and rainy season. On the farm B, samples were collected mostly in the season of high temperatures. On the farm C the collections were made over a period of heat and humidity. On the farm D, on a period of warmer temperatures and reduced rainfall. The isolation and identification of microorganisms were conducted at Laboratory of Milk Quality from Instituto de Zootecnia, Nova Odessa, São Paulo, Brazil. Aliquots of 100 mL of milk were grown on plates with 5% sheep blood agar. After incubation, they were used for the production of catalase and Gram stain. Gram positive and catalase pO artigo não apresenta resumo em português.
Biblioteca responsável:
BR68.1
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