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    Effects of the usage of dried brewing yeast in the diets on the performance, egg traits and blood parameters in quails
    (Elsevier B.V., 2008) Yalçın, S.; Erol, H.; Özsoy, B.; Onbaşılar, İlyas; Yalçın, S.
    This experiment was carried out to determine the effects of the usage of dried brewing yeast in quail diets on laying performance, egg traits and blood parameters. A total of 240 Japanese quails (Coturnix coturnix japonica) aged 10 weeks were randomly allocated into one control group and three treatment groups. Each group was divided into five replicates as subgroups, comprising 12 quails each. Dried brewing yeast (Saccharomyces cerevisiae) was used at the levels of 1.5%, 3.0% and 4.5% in the diets of the first, second and third treatment groups, respectively. Soyabean meal was replaced with dried brewing yeast. The diets were formulated to be isocaloric and isonitrogenous. The experimental period lasted 18 weeks. Dietary treatments did not significantly affect body weight, daily feed intake, daily protein intake, egg production, egg weight, feed efficiency, mortality, egg shell thickness, egg albumen index, egg yolk index, egg Haugh unit, the percentages of egg shell albumen and yolk, excreta moisture and small intestinal pH. Inclusion of 3% and 4.5% dried brewing yeast in diets reduced egg yolk cholesterol concentration as mg per yolk and mg per g yolk (P < 0.01). Blood serum cholesterol of groups fed diets with dried brewing yeast was significantly lower (P < 0.01) than that of the control group. Feeding diets containing 3.0% and 4.5% dried brewing yeast resulted in significant increases (P < 0.01) in blood serum levels of total protein, alanine aminotransferase at the end of the experiment. Blood serum levels of uric acid, triglyceride, aspartate aminotransterase and alkaline phosphatase were not affected by dietary dried brewing yeast. It is concluded that dried brewing yeast can be used up to 4.5% in the diets of laying quails without adverse effects on the measured parameters.
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    Use of combined probiotic-prebiotic, organic acid and avilamycin in diets of Japanese quails
    (Ecole Nationale Veterinaire Toulouse, 2008) Çakır, S.; Midilli, M.; Erol, H.; Şimşek, N.; Çınar, M.
    The aim of the present study was to compare the effects of Biomin (R) IMBO (combination of probiotic, prebiotic, phytogenic substances and cell wall fragments), of Biotronic (combination of formic and propionic acid based oil an inorganic phyllo-silicate carrier). of it combination of the Biomin (R) IMBO and Biotronic and of all antibiotic, avilamycin, its feed additives on the growth performance, several serum parameters and digestive villus height of quails. A total of 300 1-day-old Japanese quail chicks were randomly divided into 5 experimental groups with 4 replicates of 15 birds per replicate. The experimental design consisted of 5 dietary treatments: 1) a control diet without supplementation-2) it diet with Biomin (R) IMBO at it level of 0.1 kg/100 kg feeds 3) it diet with Biotronic at a level of 0.4 kg/100 kg feed; 4) a diet with a Biomin (R) IMBO and Biotronic combination at levels given above; 5) it diet with avilamycin it( a level of 10 mg/kg feed. Birds consuming diet supplemented with Biomin (R) IMBO, Biotronic and the combination of Biomin (R) IMBO and Biotronic, had a significantly (P<0.05) higher duodenal villus height. Single use of Biomin@lMBO and Biotronic also caused significantly higher jejunal (P<0.05) villus height. No significant differences in serum parameters were found among groups according to dietary supplements, No beneficial effect of dietary supplements oil growth performance, feed intake, feed efficiency and absolute and proportional organ weights could be observed. The beneficial effects of such supplements could be more evident in other circumstances. like stress.
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    Yeast culture supplementation to laying hen diets containing soybean meal or sunflower seed meal and its effect on performance, egg quality traits, and blood chemistry
    (Poultry Science Association, 2008) Yalçın, S.; Özsoy, B.; Erol, H.; Yalçın, S.
    This study was designed to investigate the effects of yeast culture supplementation to laying hen diets containing 2 oilseed meals on performance, egg traits, and some blood parameters. A total of 180 Lohmann Brown laying hens 21 wk of age were allocated to 4 dietary treatments and fed for 16 wk. Two different basal diets were prepared; one contained soybean meal and the other contained sunflower seed meal. Both of the basal diets were supplemented with 0 and 2 g/kg commercial yeast culture product (Saccharomyces cerevisiae). Yeast culture supplementation to diets containing either oilseed meal did not significantly affect feed intake, hen-day egg production, feed efficiency, interior and exterior egg quality characteristics, serum levels of total protein, triglyceride, cholesterol, alanine amino transferase, aspartate amino transferase, and alkaline phosphatase. Body weight gain (P < 0.05), egg weight (P < 0.001), and serum uric acid (P < 0.05) were increased with yeast culture supplementation. The reduction in egg yolk cholesterol was significant (P < 0.001) in the groups fed yeast-supplemented diets. The results in this study demonstrated that yeast culture supplementation to the diets containing soybean meal or sunflower seed meal increased egg weight and decreased egg yolk cholesterol without affecting performance and egg traits, but serum uric acid concentration was increased.