SYN had no effect on dry matter intake (DMI), daily gain (DG) and feed conversion rate (FCR). Digestibility of DM, OM, and CP were not affected with SYN supplementation. However, digestibility of NDF improved significantly in supplemented treatments (NDF digestibility was 46.09, 47.11 and 49.54 for treatments 1, 2 and 3, respectively) (P < 0.05). Considering the blood metabolites, both non-esterifies fatty acids (NEFA) and total immunoglobulin (total IG) were affected with supplementation (blood total IG concentration was 1.91, 1.95 and 2.27 mg/dl for treatments 1, 2 and 3, respectively) (P < 0.05). The blood urea nitrogen (BUN), glucose and albumin concentrations did not differ among treatments. Based on the present study it can be concluded that although SYN supplementation had no effect on performance traits of sheep, it had significant effect on both fiber digestibility and immunoglobulin concentration in blood.
کد مقاله : BIR-002
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