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Fatty acid profile of milk from goats fed diets with different levels of conserved and fresh forages
Author(s) -
RENNA MANUELA,
CORNALE PAOLO,
LUSSIANA CAROLA,
MALFATTO VANDA,
MIMOSI ANTONIO,
BATTAGLINI LUCA M
Publication year - 2012
Publication title -
international journal of dairy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 53
eISSN - 1471-0307
pISSN - 1364-727X
DOI - 10.1111/j.1471-0307.2011.00754.x
Subject(s) - hay , myristic acid , palmitic acid , food science , fatty acid , lauric acid , biology , chemistry , zoology , biochemistry
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 t 6‐11, rumenic and α‐linolenic acids ( P ≤ 0.001) in milk, thus determining a worsening of the health value of milk fat.