ABSTRACT
Three groups of goat bucks (G1,G2 andG3 ) were selected to study
the effect of injection with vitamins A ,D3 and E on the properties of
Labneh produced from their milks . Results showed an increase in milk
Titratable acidity and decrease in pH during the second month of
lactation, after weaning. Marked increase in yield and Titratable acidity
with decrease of pH were noticed in Labneh produced from the milk of
injected goats and the highest values were recorded in (G3) group. A
direct relationship was noticed between the injected dose of vitamins and
the concentrations of vitamins A, D3 and E resulted in milk and Labneh.
This means that as the injection dose of these vitamins increased, the
concentrations of the vitamins in milk were increased. Group (G3)
recorded the highest concentrations of these vitamins, being 9.213, 2.987
and 3.33 mg / 100g for vitamins A, D3 and E, in order. Concerning the
lactation period, it was found, that the second month of lactation period
recorded the highest values followed by the third period and first period ,
respectively. The best organoleptic properties was found in Labneh
produced in the second month of lactation period .Thus we recommend
the vitamins injection in dairy animals to produce milk and milk products
that can be used to produce special functional dairy products