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| Porcionato,Marco Aurélio de Felicio; Soares,Weber Vilas Boas; Reis,Carolina Barbosa Malek dos; Cortinhas,Cristina Simões; Mestieri,Lucinéia; Santos,Marcos Veiga dos. |
| The aim of this work was to evaluate the association between milk flow, teat morphological measurements and subclinical mastitis prevalence in Gir cows. Eighty cows in the 2nd and 3rd lactations, with 90 to 200 days of lactation, were divided according to milk flow during milking into fast or slow groups. Teat morphometry was assessed by ultrasound scanning of the right anterior teat and external measurements. Milk samples were collected for somatic cells count (SCC) and microbiological culture. The effect of milk flow during milking was evaluated by analysis of variance of milk yield, SCC, morphometry and external measurements. The association of morphometry and external measurements of the teats with the SCC and microorganisms found in milk were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gir; Lactation; Mammary gland; Milking; Morphology. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010001200023 |
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| Oliveira,Carlos Augusto Fernandes de; Mestieri,Lucinéia; Santos,Marcos Veiga; Moreno,José Franchini Garcia; Spers,Aleksandrs; Germano,Pedro Manuel Leal. |
| The relationship between microbiological characteristics of raw milk and the quality of high-heat whole powder made from it was investigated. To this end, 16 lots of milk standardized for fat and non-fat solids were used. Powder average levels of mesophiles and psychrotrophs were 7.8 x 10¹ and 4.0 x 10¹ CFU/g, respectively, and these values correlated positively (P < 0.05) with the corresponding raw milk counts (8.1 x 10(6) and 1.8 x 10(7) CFU/g, respectively). A significant positive correlation (P < 0.05) was also observed between raw milk psychrotroph counts and titratable acidity of milk powder (range: 0.15 - 0.19 as % lactic acid). Samples of powder produced from raw milk with higher psychrotroph levels were found to have higher insolubility... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Milk powder; Microbiological quality; Physical and chemical quality. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000200006 |
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| Botaro,Bruno Garcia; Cortinhas,Cristina Simões; Mestieri,Lucinéia; Machado,Paulo Fernando; Santos,Marcos Veiga dos. |
| The aim of this study was to estimate the concentration of milk true protein (TP) by mid-infrared absorbance method (MIR) in samples from bulk tank of dairy herds, and to determine the correlation between the results of TP of milk determined by Kjeldahl and MIR. Forty nine dairy herds were selected (17 Holstein, 6 Jersey and 26 Girolando) for monthly collections of samples from bulk tanks during the period of one year (284 samples). Fat, lactose, crude protein and total solids were firstly determined by MIR, and then analyzed for total and true protein by Kjeldahl method. The regression equation to estimate TP contents based on MIR crude protein determination was as follows: TP=0.0021+(1.0104xCP), where: TP is the content of true protein, CP is the crude... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dairy cow; Milk composition; Protein determination. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000800028 |
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