ABSTRACT
ABSTRACT The aim of this study was to modify the fatty acid profile of yogurt from sheep milk by the inclusion of different concentrations of palm oil into their diet. Thus, thirty-six sheep during lactation were separated in four groups with nine animals each, as described below: the group T0 (0%); the group T2 (inclusion of 2% of palm oil); the group T4 (inclusion of 4% of palm oil) and the group T6 (inclusion of 6% of palm oil). After 60 days of the supplementation, milk samples were collected and yogurt was produced, which was evaluated regarding the concentration of saturated fatty acids (SFA), monounsaturated fatty acids (MFA), and polyunsaturated fatty acids (PFA). A significant reduction (p<0.05) in most SFA and a significant increase (p<0.05) on MFA and PFA was observed in the yogurt of sheep supplemented with 4 and 6% of palm oil. Consequently, it is possible to conclude that palm oil supplementation exerts positive effects on yogurt, since it led to the reduction of undesirable fatty acids and increased fatty acids beneficial to human health.
Subject(s)
Humans , Animals , Yogurt/analysis , Sheep , Palm Oil/administration & dosage , Dietary Supplements , Milk/chemistry , Fatty Acids/analysis , Dairying , Animal Nutritional Physiological PhenomenaABSTRACT
Esta pesquisa foi realizada com o objetivo de avaliar o efeito da inclusão de cloreto de amônia na dieta pré-parto de ovelhas leiteiras sobre o pH urinário, cálcio sérico e metabolismo energético dos animais. Foram utilizadas vinte fêmeas ovinas da raça Lacaune, separadas em dois grupos: o Grupo Controle (GC, n=10) que recebeu a dieta pré-parto sem adição de cloreto de amônia e o Grupo Tratado (GT, n=10) que recebeu a dieta pré-parto com a inclusão de 0,4% de cloreto de amônia do total de matéria seca (MS) consumida por animal/dia. As coletas de urina e sangue ocorreram aos 120 (M0), 127 (M1) e 135 (M2) dias de gestação. Foram avaliados o pH urinário e os níveis séricos de cálcio, cetonas, glicose e colesterol. Houve redução no pH urinário no GT nos dias 127 e 135 de gestação. Os valores de cetonas séricas foram inferiores no GT no dia 135 de gestação enquanto que os níveis de cálcio e colesterol foram superiores neste grupo no mesmo momento tempo avaliado. Não houve diferença nos valores de glicose entre os grupos. Desta forma, conclui-se que a inclusão de 0,4% de cloreto de amônia do total de matéria seca consumida por animal/dia na dieta pré-parto de ovelhas leiteiras foi eficiente na manutenção da calcemia neste período e que esta pode estar associada à não redução do status energético em ovelhas gestantes.
This research was done to evaluate the effect of inclusion of ammonium chloride in the pre-partum diet in dairy sheep over the urinary pH and in calcium and energetic metabolism of these animals. Twenty ewe of Lacaune breed were separated into two groups, the Control Group (CG, n = 10) that received pre-partum diet without ammonium chloride and Treated Group (TG, n = 10) that received the diet pre-partum with 0.4% of ammonium chloride in total dry matter (DM) consumed per animal/day. The samples of urine and blood were collected in 120 (M0), 127 (M1) and 135 (M2) days of gestation. The parameters assessed were the urine pH and serum levels of calcium, ketones, glucose and cholesterol. In the urinary pH assay occurred a reduction in the GT on 127 and 135 days of gestation. The values were lower in the serum ketones in GT on 135 of gestation on the day whereas calcium levels and cholesterol levels were higher in this group at the same experimental time. There was no difference in glucose values between groups. Thus, it is concluded that inclusion of 0.4% of ammonium chloride to the total dry matter intake per animal/day in the pre-partum diet of milk sheep was effective in maintaining calcium levels over this period. And yet, this maintenance of calcium levels may be associated with no reduction in energy status in pregnant ewes.