تأثير تغذية البروتين غير المتحلل و مخلفات المخابز في أداء الحملان العواسي

الملخص EN

This study was conducted to investigate the effect of low, medium and high levels rumen undegradable protein (RUDP) with 0 and 25% bakery byproducts (BB) instead of barley on daily intake, live weight gain, digestion coefficients, feed conversion ratio, rumen characteristics and some blood parameters.

Twenty four Awassi male lambs were used in 3x2 Factorial Completely Randomized Design.

They were weighing 22.76 ± 0.45 kg and 5-6 months of age.

The lambs were divided into six equal groups The lambs were individually house.

The quantity of concentrate diets offered for each lambs 3.5% to the live body weight (LBW) as well as barley straw crushed freely.

Recording of daily intake and live-weight gain was maintained for 8 weeks throughout the feeding trial preceded by 14 days adaptation period.

Results indicated no negative effects of substitution 25% BB instead of barley in lambs ration.

High levels of RUDP with bakery byproducts increased (P<0.05) live weight gain, digestion coefficients and some rumen characteristics.

No effects for the levels of RUDP and BB or the interaction between it on daily feed intake, rumen volatile fatty acids, urea and blood glucose or others parameters of serum.

High levels of RUDP decreased (P<0.05) digestion coefficients of crude fiber, acid and neutral detergent fiber, rumen ammonia-N.

In Conclusion, the substitution of 25% BB instead of barley ration with different levels of RUDP had positiv effects on lamb’s performance.