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Öğe The effects of dietary glycerol on growth and laying performance, egg traits and some blood biochemical parameters in quails(ECOLE NATIONALE VETERINAIRE TOULOUSE, 2009) Erol, H.; Yalcin, S.; Midilli, M.; Yalcin, S.This study was designed to investigate the effects of different closes of glycerol from biodiesel production added to diets oil growth and laying performance, egg traits and some blood biochemical parameters in laying quails. A total of 425 (Coturnix coturnix japonica) quails, 10 weeks old, were randomly allotted into 5 groups of 85 birds each and glycerol was administered at the doses of 0 (control group), 25, 50 75 and 100 g/kg of diets during the 18 weeks long experimental period. The dietary glycerol treatment has not increased the mortality rate and has not significantly affected the growth and the laying parameters (body weight gain. food Consumption and efficiency. egg production aid weight). Only the highest glycerol dose has significantly altered the egg quality by decreasing the albumen height, the albumen index and the Haugh unit (P < 0.001) and increasing the yolk cholesterol content (P < 0.05). Furthermore. even if only a significant decrease of the stearic acid was evidenced (P < 0.05), the yolk composition in fatty acids appeared to he relatively modified with slight increases of sonic minor saturated acids, of the 2 monounsaturated C16:1 and C18:1 acids and of all polyunsaturated acids and decreases of the majority of monounsaturated acids, Under glycerol supplementation. In addition, except for the lowest dose, the serum triglyceride concentrations were significantly depressed (P < 0.001) and the serum ALT activities were also significantly reduced (P < 0.001) in birds receiving 50 or 100 g/kg glycerol in diets. These results suggest that. contrary to the highest dose, glycerol up to 75 g/kg in diets did not adversely affect the performance of laying quails and the egg quality and would be used as an alternative energy source.Öğe Effects of the usage of dried brewing yeast in the diets on the performance, egg traits and blood parameters in quails(CAMBRIDGE UNIV PRESS, 2008) Yalcin, S.; Erol, H.; Oezsoy, B.; Onbasilar, I.; Yalcin, 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.Öğe The investigation of xylazine, detomidine, isoflurane and sevoflurane anaesthetic combinations on clinical, laboratory and cardiovascular parameters and on intraocular pressure in horses(HELLENIC VETERINARY MEDICAL SOC, 2019) Erol, H.; Arican, M.The aim of this study was to investigate the effects of anaesthetic combinations of xylazine, detomidine, sevoflurane and isoflurane on clinical, laboratory, and cardiovascular parameters as well as their effects on intraocular pressure in horses. Twenty-four mixed-breed horses (twelve male and twelve female) were used for this study. The horses were allocated into four groups (six horses in each group): XS (xylazine-sevoflurane), XI (xylazine-isoflurane), DS (detomidine-sevoflurane) and DI (detomidine-isoflurane). Clinical evaluations, hematological, biochemical tests and measurement of intraocular pressure were done before (0th), during (5th, 15th and 30th min) and at the end of anaesthesia (60th min). The detected differences were statistically evaluated. In conclusion, this study shows that the anaesthetic combinations of sevoflurane and isoflurane with xylazine and detomidine provided safe and suitable anaesthesia in horses. Our study did not reveal any statistical differences in intraocular pressure measurements. However, it should be noted that intraocular pressures were measured with the animals lying down and our results do not rule out changes in intraocular pressures in a standing position. We concluded that these anaesthesia protocols are suitable for ophthalmic surgery.Öğe 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 ASSOC INC, 2008) Yalcin, S.; Oezsoy, B.; Erol, H.; Yalcin, 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.
