Yazar "Gul, I." seçeneğine göre listele

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    The Effect of Sorghum Grain on Ruminal Fermentation and Some Blood Parameters in Beef Cattle
    (Medwell Online, 2008) Baran, M. S.; Yokus, B.; Gul, I.; Alp, M.; Sahin, N.
    In this research, the effect of sorghum in beef cattle mixture feeds as energy source instead of wheat on ruminal fermentation and some blood parameters was investigated. In the experiment, 20 Holstein beef cattle of 1.5 years old, each weighing average 330 kg were used. The trial was done in 2 stages: the first stage was pre-experimental period for 2 weeks and the second stage was the main experimental period for 10 weeks, totally lasting twelve weeks. During the whole experimental period, isocaloric and isonitrogenic 2 diets were used. In control group, mixtures involved 27% wheat, but in experimental group 27% sorghum was used instead of wheat. Dried alfalfa hay was used as roughage. Both rations consisted of 80% concentrated feed and 20% roughage. The differences between the groups for ruminal fermentation parameters; rumen fluid pH, ammonia concentrations, total volatile fatty acids, acetate, propionate, butyrate levels were not significant (p>0.05). In both groups differences, at the beginning and middle of the trial period for blood serum parameters (total protein, glucose, albumin, Ca, Na, P, K, Zn, Cu, Fe, Mg), were not significant, but at the middle and end of the trial, the differences between the groups was significant for blood serum Se levels (p<0.05). Trial results indicated that sorghum grain could be used instead of wheat as an economical energy source in beef cattle rations.
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    Effects of Sewage Sludge used as Fertilizer on Heavy Metal Contents of Bird's-Foot Trefoil (Lotus corniculatus L.) and Soil
    (Asian Journal Of Chemistry, 2012) Saruhan, V.; Gul, I.; Kusvuran, A.; Aydin, F.
    This study was carried out to determine the effects of the sludge which was provided from a wastewater refinement facility of Municipality of Diyarbakir on bird's-foot trefoil plant production and its soil properties. For this purpose, the increasing level of sewage sludge has been applied to the soil samples which are taken from the plant rotation field of Dicle University campus area in Turkey and this sludge was left. At the end of study, the chemical properties of the soil have been determined and the results have been compared statistically. In this study three times reiterated randomized blocks design type has been established in the pod to determine the effects of the sludge to the plants and also the mineral content (Hg, Cr, Zn and Ni) of bird's-foot trefoil plant. The sludge that was applied to the soil with increasing amounts, raised the heavy metal content of bird's-foot trefoil plant, but this raising did not line-out for allowable limit.
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    Effects of Sorghum on Nutrient Digestibility and Some Milk Parameters in Dairy Cow Rations
    (Medwell Online, 2008) Baran, M. S.; Gul, I.; Demirel, R.
    In this study, effects of sorghum used instead of corn as an energy source on nutrient digestibility and some milk parameters in dairy cow rations were investigated, During the 20 weeks trial period, four Holstein cows at their first lactation stage were used in 4x4 Latin square design. The trial was consisted of four periods. Each period lasted five weeks of which consisted two weeks pre-experimental period and three weeks main experimental period. Dairy cows were fed with four different rations. Good quality alfalfa was given as roughage to animals. Digestibility of nutrients were determined according to rations, as follows, respectively; dry matter: 69.16, 69.49, 69,74, 70.10%, crude ash: 26.04, 26.31, 26.42, 26.49%; organic matter: 70.35, 70.43, 70.33, 70.48%; crude protein: 69.77, 69.96, 70.20, 70.43%; etherextract: 70.74, 70.86, 71.02, 71.15%; crude fiber: 59.56, 59.75, 59.96, 60.17; Neutral Detergent Fiber (NDF): 45.92, 46.03, 46.11, 46.15% and Acid Detergent Fiber (ADF): 4.3.06, 43.17, 43.36, 43.45%. The differences for the digestibility of dry matter, crude ash, organic matter, ADIF and NDF among rations were not significant (p>0.05). However, digestibility of crude protein, ether extract and crude fiber were found significant among rations (p<0.05). According to rations percentages of milk parameters were determined as follows, respectively; dry matter: 13.23, 13.02, 13.05, 13.10%, crude ash: 0.57, 0.56, 0.58, 0.60%, pH: 6.65, 6.65, 6.66, 6.68, density: 1030, 1031, 1031, 1031 and fat-free dry matter: 9.46, 9.29, 9.33, 9.37%. Differences among milk parameters, according to rations were not significant (p>0.05). Trial results indicated that grain sorghum can be used instead of corn as an economical energy source in dairy cow rations.
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    Genotype x environment interaction and stability analysis for dry matter and seed yield in field pea (Pisum sativum L.)
    (Inst Nacional Investigacion & Tecnologia Agraria & Alimentaria-Inia-Csic, 2009) Acikgoz, E.; Ustun, A.; Gul, I.; Anlarsal, E.; Tekeli, A. S.; Nizam, I.; Avcioglu, R.
    The objectives of this study were to evaluate dry matter (DM) yield and seed yield of six leafed and semi-leafless pea (Pisum sativum L.) genotypes, and to compare them for these traits. Evaluation of genotype x environment (G x E) interaction, stability and cluster analysis were also carried out at eight diverse locations with typical Mediterranean and Mediterranean-type climate during the 2001-2002 and 2002-2003 growing seasons. Significant differences were found among the pea genotypes for DM and seed yield on individual years and combined over years, and in all locations. All interactions which related to G x E interaction showed significance (P>0.001) for DM and seed yield. The highest yield (4789 kg ha(-1)) was obtained from the leafed genotype 'Urunlu'. However, stability analysis indicated that for DM yield, the leafed genotypes 'Golyazi' and 'Urunlu' should be grown in low yielding and high yielding environments, respectively. Cluster analysis, based on grouping locations, showed that P101 was the preferred variety in low yielding environments, and P98, in high yielding ones. It was suggested that the use of both stability and cluster analyses might give better results. Comparison of cluster and stability analyses showed that the stability analysis fails to recommend cultivars to different regions where yield potential showed significant differences. It seems, however, that cluster analysis could be a powerful tool to examine G x E interaction. If the number of environments was sufficient, a separate stability analysis could be run in each cluster.