Perfil de ácidos graxos no leite de vacas Holandês em pastagens tropicais suplementadas com dois níveis de concentrado / Milk fatty acids profile of Holstein cows grazing tropical forages supplemented with two concentrate levels
Lopes, F. C. F; Barros, P. A. V; Bruschi, J. H; Silva, P. H. F; Peixoto, M. G. C. D; Gomide, C. A. M; Duque, A. C. A; Gama, M. A. S.
Arq. bras. med. vet. zootec;
63(2): 518-521, abr. 2011. tab
Artigo
em Português
| VETINDEX
| ID: vti-5967
Resumo
Milk fatty acids profile was evaluated using 12 Holstein cows producing 15 kg/day of milk with 4.0% of fat. The animals were assigned to four treatments in a 2 x 2 factorial arrangement (two tropical grasses - Brachiaria brizantha cv. Xaraés and Panicum maximum cv. Tanzania, supplemented with two concentrate levels - 3 and 6 kg/cow/day) in a completely randomized block design. There was no effect of forage and concentrate level (P>0.05) on concentrations of rumenic, vaccenic, (C18: 1 trans-11) and oleic acids in milk fat (mean values of 1.01, 1.79, and 22.55 g/100 g of total fatty acids, respectively). The concentrations of lauric (C12:0), myristic (C14:0), and palmitic (C16:0) acids were also unaffected by treatments (mean values of 2.63, 9.77, and 27.44g/100g of total fatty acids, respectively). Overall, the results illustrate the potential of tropical grasses in producing milk containing a more desirable fatty acids profile in terms of human health.(AU)
Biblioteca responsável:
BR68.1
Localização: BR68.1
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