Productive Performance, Milk Composition and Milk Fatty Acids of Goats Supplemented with Sunflower and Linseed Whole Seeds in Grass Silage-Based Diets
Einar Vargas-Bello-Pérez,
Carlos Alberto García Montes de Oca,
Nazario Pescador Salas,
Julieta G. Estrada Flores,
José Romero Bernal,
Lizbeth Esmeralda Robles-Jimenez,
Manuel Gonzalez-Ronquillo
Affiliations
Einar Vargas-Bello-Pérez
Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Grønnegardsvej 3, DK-1870 Frederiksberg C, Denmark
Carlos Alberto García Montes de Oca
Universidad Autónoma del Estado de México, Facultad de Medicina Veterinaria y Zootecnia, Instituto Literario 100 Ote., 50000 Toluca, Estado de México, Mexico
Nazario Pescador Salas
Universidad Autónoma del Estado de México, Facultad de Medicina Veterinaria y Zootecnia, Instituto Literario 100 Ote., 50000 Toluca, Estado de México, Mexico
Julieta G. Estrada Flores
Universidad Autónoma del Estado de México, Instituto en Ciencias Agropecuarias y Rurales, Instituto Literario 100 Ote., 50000 Toluca, Estado de México, Mexico
José Romero Bernal
Universidad Autónoma del Estado de México, Facultad de Medicina Veterinaria y Zootecnia, Instituto Literario 100 Ote., 50000 Toluca, Estado de México, Mexico
Lizbeth Esmeralda Robles-Jimenez
Universidad Autónoma del Estado de México, Facultad de Medicina Veterinaria y Zootecnia, Instituto Literario 100 Ote., 50000 Toluca, Estado de México, Mexico
Manuel Gonzalez-Ronquillo
Universidad Autónoma del Estado de México, Facultad de Medicina Veterinaria y Zootecnia, Instituto Literario 100 Ote., 50000 Toluca, Estado de México, Mexico
The objective of this study was to determine productive performance, milk composition and milk fatty acids (FA) of goats supplemented with sunflower and linseed whole seeds in grass silage-based diets. Nine Alpine goats were grouped in a replicated 3 × 3 Latin square design (n = 3), that included three 21-d periods. Treatments were based on grass silage offered ad libitum and a concentrate mixture supplemented with either 40 g/d of Megalac-R® (control), 80 g/d of sunflower seed (SF), or 80 g/d of linseed (LS). Dry matter intake (1292 ± 14.0 g/d) and digestibility (g/kg) of dry matter (640 ± 32.1), organic matter (668 ± 32.4), neutral detergent fiber (628 ± 41.4) and acid detergent fiber (567 ± 60.9) was not affected by treatments (p > 0.05). Treatment did not affect milk fat yield (39.9 ± 1.24 g/d), protein content (4.5 ± 0.03 %) and protein yield (34.7 ± 1.22 g/d). Compared to control, SF and LS, decreased C16:0 (28.2 vs. 23.1 and 22.4 g/100 g), and increased total C18:1 (24.1 vs. 27.6 and 28.4 g/100 g) respectively. Overall, SF and LS resulted an effective strategy for altering the FA composition of goat´s milk towards a healthier profile for humans without deleterious effects on animal performance.
