PSVI-15 Effects of Different Dietary Sources of Lipids for Lactating Ewes

Abstract The aim of this study was to evaluate the effects diets with fatty acid profiles on lactation performance and milk composition ewes. Dorper vs. Santa Inês ewes (n=40; 54.9 ± 8.3 kg BW 14 days in milk) were penned individually used a randomized complete block design. Ewes fed basal diet (19.87 0.62% CP) containing 70% concentrate 30% coastcross hay, no added oil (CON). remaining 4.0% soybean (SO), calcium salts palm acids (CSPF), or (CSSF) (DM basis). from week 2 10 lactation. Milk production determined every 7 during experiment. separated their lambs mechanically milked for emptying mammary gland. After 3 hours, using same procedure, recorded samples collected analysis. addition SO decreased (P< 0.001) DM intake, difference between other treatments. production, as well fat, protein, lactose total solids (g/3 hours) not affected by Regarding composition, percentage fat increased 0.0001) CSSF. protein less that received CSPF, diets. Finally, acids. In conclusion, had greatest negative effect dry matter intake. All sources modulated better results regard acids, considering it content milk.