اعلانات هامة

The aim of this study was to evaluate the effect of using the oak berries as an energy resource instead of barley , on the productive parameters of the Syrian Awassi lambs. Tow diets were used , the first contained barley as a control , while the second one contained the oak berries where the cotton seed cake was used to increase the protein fraction.

The experiment lasted for eight weeks and the results showed that the amount of food consumed was not affected by the type of the bush and reached 697 g / day in the witness and 698.5 g / day in the transaction.

When we express the amount consumed for the weight of a representative 0.75, we find that the quantity dealt with was 2.48.58 ± 2.3 g / kg for users versus 50.16 ± 2.04 g / kg for the treatment and the average daily rate of increase in weight, 231.5 ± 14.64 g, 208,4 ± 9.17 g of the witness and the treatment significant differences in favor of the witness as well as the coefficient of conversion of the witness where the best was 3.07 ± 0.16 for users versus 3,39 ± 0.10 for the treatment of significant differences.( p<0.05)

The disappearance of dry matter in situ was 67,5 % in the control and 63,75%

In the oak diet ,and the protein efficiency ratio was 2.14±0.10 % and 1.99±0.06% respectively. Although these results indicate the preference of barley diet , we could use the oak berries diet because of its price and redundancy ,so the treated animals were well grown and did not show any negative side – effects.

Key words : oak berries , energy resource , productive parameters , disappearance of dried matter index , Syrian Awassi .