Nutritional evaluation of a fungal-yeast probiotic fortified with natural antioxidants on performance of sheep. 1-nutrients digestibilities, dietary nitrogen utilization, rumen fermentation and changes of blood biochemical constituents

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Abstract: This study was conducted to evaluate the nutritional effect of a new locally-made probiotic consisted of two strains of fungi (Trichoderma reesei and Aspergillus oryzaeae) with dry live baker's yeast (Saccharomyces cervisiae) and the mixed culture was fortified with natural antioxidants of herbal medicine plants. The product had the abbreviated name EMMH. In this phase of evaluation. four Parallel digestibility and nitrogen balance trials were carried out on twelve uncastrated three years old Ossimi rams of an average body weight 56.20±3.75kg. Experimental animals were ranked in four similar groups (3 animals each) and fed individually on the following diets: Group I (control): ground Concentrates feed mixture (CFM) + chopped rice straw. Group 2 (0.3%): ground CFM + 3 Kg EMMH/ton + chopped rice straw. Group 3 (0.4%): ground CFM + 4 Kg EMMH/ton + chopped rice straw. Group 4 (0.5%): ground CFM + 5 Kg EMMH/ton + chopped rice straw. Un-supplemented or EMMH supplemented CFM were offered at 4% of body weight once daily at 8.00 a.m.. while rice straw was offered adlib. at 2.00 p.m. Drinking water was freely available at all times. Digestibility trials were extended for 42 days. where 28 days were for pen-feeding.
followed by seven days in metabolic crates and the last seven days were for feces, urine, rumen liquor and blood samples collection. The results indicate that there were significant increases (P < 0.0 I) of DM, OM, EE, CP, CF and NFE digestion coefficients for diets supplemented with EMMH and the effect was more statistically pronounced with increasing the supplementation level up to 0.5% of CFM. The nutritive value of rations expressed as TDN units relative to control diet were increased by 10%, 20% and 23% and as DCP by 25%. 31% and 34% for 0.3, 0.4 and 0.5% EMMH supplemented diet respectively. The apparent nitrogen utilization was increased (P < 0.01) under the administration of EMMH and the maximum value was achieved with the highest supplementation level (0.5%). Total ruminal VFA's. acetate and propionate concentrations at 3 and 6hrs. post feeding were higher (P < 0.01) with EMMH supplemented rations, while butyrate concentration recorded the highest values with the control diet at the two sampling times. No significant differences were attained for ruminal pH and ammonia-N concentration among groups. Blood biochemical constituents were generally normal in all experimental groups, however, blood plasma total protein albumin and globulin were higher (P< 0.05) at 3 and 6 hrs. Post-feeding for animals fed EMMH supplemented rations. It is concluded that EMMH improved the nutritive value of traditional concentrates feed mixture and the improvement was increased with increasing the supplementation level up to 5Kg EMMH/ton of CFM.
Keywords: probiotic; antioxidants; sheep; nutrients digestibility; rumen fermentation activity.

Publication year

2011

Pages

367-377

Availability location

معهد بحوث الانتاج الحيوانى-شارع نادى الصيد- الدقى - الجيزة

Availability number

Organization Name

Animal Production Research Institute (APRI)

serial title

Egyptian Journal Nutrition and Feeds

ISSN