Total Fatty Acids in Murrah Buffaloes Milk on Commercial Farms in Brazil
2010
M.A.S. Gama | D.P.D. Lanna | H. Tonhati | S.V. Matarazzo | S.A.A. Fernandes | W.R.S. Mattos
The objective of this trial was to document the total fatty acids in Murrah buffaloes milk on commercial farms in Brazil. Data from forty lactating Murrah-crossbred buffaloes were collected on five commercial farms located at Sarapui and Pilar do Sul, Sao Paulo-Brazil. A field survey was done from April to November 2002. In four farms, buffaloes were fed with wet brewers grains (primary concentrate). Only one farm (Farm 4) offered pasture and corn silage. Monthly milk samples were collected and stored at -20ºC until analyzed for fatty acid composition. The fatty acids with the highest percentage in total milk fat were C16:0; C18:1c9; C18:0 and C14:0. The average content observed in C16:0 varied from 25.4 to 32.5%. Farm 4 (pasture plus corn silage) showed a higher C16:0 value (32.5%). C18:1c9 varied from 20.6 to 25.1%, C14:0 varied from 5.9 to 8.9 % and CLA content (C18:2c9t11) varied from 1.0 to 1.8%. Farm 3 presented higher average of C18:1c9 (25.1%) and C18:2c9t11 (1.8%), and lower average of C14:0 (6.0%). Likewise, unsaturated fatty acids, C18:1c9 and C18:2c9t11 were higher on Farm 3. Probably, these results can be due to high CLA intakes derived from wet brewers grain and pasture. Long chain fatty acids varied from 34.2% (Farm 4) to 48.8% (Farm 3). In general, diets based on pasture and corn silage increased the levels of medium chain fatty acids in Murrah buffaloes milk.
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