Fatty acid profile of milk from goats fed diets with different levels of conserved and fresh forages |
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Authors: | MANUELA RENNA PAOLO CORNALE CAROLA LUSSIANA VANDA MALFATTO ANTONIO MIMOSI LUCA M BATTAGLINI |
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Affiliation: | Department of Animal Science, University of Torino, via L. da Vinci 44, 10095 Grugliasco, Torino, Italy |
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Abstract: | Aim of the study was to evaluate the effect of different proportions of hay and fresh grass in goats’ diet on milk fatty acid profile. Nine Camosciata goats were fed a fixed amount of concentrate (30% of total diet) and different percentages (40% vs 30%, 50% vs 20% and 60% vs 10%) of hay and fresh grass, respectively. Diminishing amounts of fresh grass percentages in the diet led to significant increases of lauric, myristic and palmitic acids (P ≤ 0.001) and to significant decreases of C18:1 t6‐11, rumenic and α‐linolenic acids (P ≤ 0.001) in milk, thus determining a worsening of the health value of milk fat. |
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Keywords: | Goat milk Fatty acids Conjugated linoleic acid Hay Fresh grass Human health |
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