Production of healthier goat milk. Use of a concentrate supplemented with a "protected" fat rich in PUFA.
In order to obtain healthier goat milk as far as its fat composition is concerned, milk production and composition trials were carried out with Granadina goats kept in semi-extensive breeding conditions. The animals were feeding indoors with a concentrate supplemented or not with 7% of fat conveniently protected against the action of rumen, which had 35% of polyunsaturated fatty acids (PUFA). The amount of milk produced was higher (p < 0.05) with consumption of the fat supplemented concentrate. At the same time, and although there was no difference in the milk concentration of fat and protein nitrogen (p > 0.05), the corresponding yields were higher for consumption of the fat supplemented concentrate. As for the composition of milk fat, the use of the supplemented concentrate resulted in fat with a higher (p < 0.05) concentration of PUFA and a lower (p < 0.05) concentration of stearic acid. At the same time, the concentration of medium chain triglycerides, which is the specific nutritional value particular to goats' milk, was the same whichever concentrate was consumed.
Sanz Sampelayo
M R
MR
Departamento de Nutrición Animal, Estación Experimental del Zaidín, Granada, Spain. rsanz@eez.csic.es
Martín Alonso
J J
JJ
Morón
D
D
Pérez
L
L
Boza
J
J
D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D003612:Dairying / Q000379:methods*; D004435:Eating; D005231:Fatty Acids, Unsaturated / Q000032:analysis / Q000493:pharmacokinetics*; D005260:Female; D006041:Goats; D008892:Milk / Q000737:chemistry*; D012417:Rumen / Q000378:metabolism; D013229:Stearic Acids / Q000032:analysis
D005231:Fatty Acids, Unsaturated; D013229:Stearic Acids