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Öğe Effects of Bentonite (Excell FS/7) on Rumen Fermentation, Digestibility, Milk Yield in Dairy Cattle(Indian Veterinary Journal, 2000) Gülşen, N.; İnal, F.; Aslan, C.; Umucalılar, H. D.Turkiye has large bentonite deposits, 20% of world's. A considerable part (70-80%) of production of 300,000 tonnes is used in domestic market, the rest is exported. Bentonites are used in ceramic iııdustry, preparation of iron pellets, production of dye and varnish, construction sector, production of agricultural drug, and as adsorbent materials for cat litter, animal feeds, and pellet binder (Alzubaidy, 1992;Temur, 1994).Öğe Effects of Dietary Levels of Vitamin a on the Egg Yield and Immune Responses of Laying Hens(POULTRY SCIENCE ASSOC INC, 1998) Coşkun, B.; İnal, F.; Çelik, İ.; Erganiş, O.; Tiftik, A. M.; Kurtoğlu, F.; Kuyucuoğlu, Y.This research, which was designed and carried out as two consecutive experiments, investigated the effects of four different levels (0, 4,000, 12,000, and 24,000 IU/kg) of vitamin A supplementation on egg yield, plasma vitamin A levels, and immune responses of laying hens. Transmission of maternal immunity to their descendants was also studied. In the first experiment, egg yield, blood vitamin A levels, and various parameters of the immune system such as T lymphocyte levels in the peripheral blood, plasma cell counts in the spleen, and antibody titers against Newcastle Disease Virus (NDV) in the sera were investigated for a l-yr period. A total of 864 Hisex-brown laying hens were used in this experiment. The chicks were reared as commercial flocks until the 18th wk of age. No significant differences occurred among the parameters of the different diet groups. In the second experiment, maternal immunity was assessed in the chickens, supplied by hatching the eggs from hens in the first experiment. Maternal immunity was assayed by using the parameters as in Experiment 1. For this purpose, both blood and tissue samples were taken on the 2nd, 7th, and 10th d posthatch. Vitamin A supplementation had no significant effects on maternally, derived antibody titers or histologic structure of the lymphoid organs.Öğe The Effects of Various Level of Vitamin E on the Immunity and Egg Yield of Laying Hens(SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY, 1997) Coşkun, B.; İnal, F.; Erganış, O.; Kuyucuoğlu, Y.; Ok, U.; Çelik, I.; Tiftik, A. M.This research was carried out in two experiments. In first experiment, four different levels of vitamin E (0, 5, 35 and 70 IU/kg feed) were added the diets based on corn, and the effects of the diets on egg yields, blood vitamin E levels, T-lymphocyte percentage, plasma cell count in spleen and antibody titers against the vaccine of Newcastle disease were investigated for one years. Total of 864 laying hens were used in this experiment. The mean egg yields of the experimental groups were 79.9, 80.6, 77.2 and 79.5% (P>0.05) and feed consumptions for one kg egg were 2.23, 2.23, 2.36 and 2.20 kg (P<0.05). No significant differences among groups found in blood vitamin E levels and histologic and immunologic results. In the second experiment twentyfour chick for each group were supplied by hatching eggs from the hens used in experiment I in order to investigate maternal immunity. Antibody titers were determined at day 2, 7 and 10. At same day, for histologic investigation, blood and some lenfoid tissue samples from spleen, bursa Fabricii, tymus and ileum were taken at same days the effects of different vitamin E levels were not significant on the antibody titers and histologic results.Öğe The Effects of Various Level of Vitamin E on the Immunity and Egg Yield of Laying Hens(1997) Coşkun, B.; İnal, F.; Erganiş, O.; Kuyucuoğlu, Y.; Ok, U.; Çelik, I.; Tiftik, A. M.This research was carried out in two experiments. In first experiment, four different levels of vitamin E (0. 5, 35 and 70 IU/kg feed) were added the diets based on corn, and the effects of the diets on egg yields, blood vitamin E levels, T-lymphocyte percentage, plasma cell count in spleen and antibody titers against the vaccine of Newcastle disease were investigated for one years. Total of 864 laying hens were used in this experiment. The mean egg yields of the experimental groups were 79.9, 80.6, 77.2 and 79.5% (P>0.05) and feed consumptions for one kg egg were 2.23, 2.23, 2.36 and 2.20 kg (P<0.05). No significant differences among groups found in blood vitamin E levels and histologic and immunologic results. In the second experiment twentyfour chick for each group were supplied by hatching eggs from the hens used in experiment I in order to investigate maternal immunity. Antibody titers were determined at day 2, 7 and 10. At same day, for histologic investigation, blood and some lenfoid tissue samples from spleen, bursa Fabricii, tymus and ileum were taken at same days the effects of different vitamin E levels were not significant on the antibody titers and histologic results.
