Artigo
Activity of Delta(9)-desaturase enzyme in mammary gland of lactating buffaloes
Fecha
2007-01-01Registro en:
Italian Journal of Animal Science. Pavia: Pagepress Publ, v. 6, p. 1060-1062, 2007.
1594-4077
10.4081%2Fijas.2007.s2.1060
WOS:000207598500092
WOS000207598500092.pdf
7445254960858159
Autor
Universidade Estadual do Sudoeste da Bahia (UESB)
Universidade de São Paulo (USP)
Universidade Estadual Paulista (Unesp)
Resumen
The objective of this research was to measure the activity of e-desaturase enzyme in lactating buffaloes. Data from forty lactating Murrah-crossbred buffaloes were collected on five commercial farms located at Sarapui and Pilar do Sul, São 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 -20 degrees C until analyzed for fatty acid composition. The Delta(9)-desaturase activity was measured using an indirect method (myristoleic and myristic acids ration - C(14:1c9)/C(14:0)). The higher C(14:1c9)/C(14:0) rate was verified on Farm 4 (0.092). The C(14:1c9)/C(14:0) ratio were 0.064 to Farm 1; 0.065 to Farm 2; 0.062 to Farm 3 and 0.065 to Farm 5. The C(17:1)/C(17:0), C(18:1c9)/C(18:0) and C(18:2c9t11)/C(18:1t11) ratios were also affected. The Farm 4 showed higher value for all ratios. Therefore, in lactating buffaloes grazing pasture the Delta(9)-desaturase activity could be enhanced.