Influence of milking method, storage conditions and somatic cell counts on the milk quality form tanks

Abstract The objective of this study was to evaluate the influence of the milking method, the storage conditions and the SCC (Somatic Cell Count) increase on the quality of raw milk. Monthly evaluations were performed out over a year in 21 tanks by monitoring the refrigeration temperature and the storage time of the milk in the tank. The tanks were grouped into three temperature levels. Milk storage time intervals were established in each tank: up to 24 h of storage; between 24 and 48 h; and above 48 h. The effect of SCC on the composition was evaluated in three categories: Low SCC; Medium SCC; High SCC. In the analyzed period, 10.8 % presented low SCC, followed by 46.5 % with medium SCC, while 42.7 % had high SCC. There was a positive correlation between SCC and protein, and a negative correlation between SCC and lactose. It is concluded that the milking method does not influence the microbial contamination of the milk; however, longer storage time and increased temperature influenced an increase in microorganism counts in milk. In evaluating the hygienic/sanitary quality of the milk, 42.7 % had high SCC and the total bacterial counts presented values above the values recommended by legislation.

Bibliographic Details

Main Authors:	Bezerra,Joadilza da Silva, Oliveira,Juliana Paula Felipe de, Sales,Danielle Cavalcanti, Silva,Yhêlda Maria de Oliveira, Urbano,Stela Antas, Borba,Luis Henrique Fernandes, Murmann,Lisandra, Rangel,Adriano Henrique do Nascimento
Format:	Digital revista
Language:	English
Published:	Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias 2020
Online Access:	http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S2007-11242020000401016
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