TITLE:
Effect of Diet Supplementation with Combinations of Soybean and Linseed Oils on Milk Production and Fatty Acid Profile in Lactating Dairy Ewes
AUTHORS:
Liliana Elisabet Antonacci, Margarita Bussetti, María Alejandra Rodriguez, Adriana Virginia Cano, Gerardo Antonio Gagliostro
KEYWORDS:
Ewe Milk, Soybean Oil, Linseed Oil, Conjugated Linoleic Acid
JOURNAL NAME:
Agricultural Sciences,
Vol.9 No.2,
February
14,
2018
ABSTRACT: Thirty-six Pampinta ewes were used in a completely randomized design to examine the effectiveness of soybean (SO) and linseed (LO) oils to reduce the concentration of the atherogenic fatty acids (FA) of milk (C12:0 to C16:0) and increase the content of conjugated linoleic (cis-9, trans-11 C18:2) also called rumenic acid (RA) and vaccenic acids (trans-11C18:1, VA). Six ewes per treatment received a Control diet alone (71% alfalfa hay and 29% concentrate) or supplemented (0.24 kg/ewe·day) with pure oils (SO100 or LO100) or their blend at (%) SO75-LO25, SO50-LO50 and SO25-LO75. Milk yield, milk fat content and milk fat secretion were not affected. Milk protein content resulted higher in SO75-LO25, SO50-LO50 and SO25-LO75 without changes in milk protein yield. Total solid content of milk tended (p p p