Browsing by Author "Kale, Ç."

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Effects of Hambeles (Myrtus Communis L.) Leaf on In Vitro Ruminal Fermentation Parameters, Methane Production and Protozoa Counts
(Chulalongkorn University Printing House, 2025) Kale, Ç.; Özkan, F.; Aksu, T.; Aksu, D.S.; Bingöl, N.T.; Güney, M.; Önel, S.E.
Current ruminant nutrition studies are based on improving rumen fermentation to enhance performance and reduce greenhouse gases. For this purpose, the use of herbal-based feed supplements has become widespread. To determine the effects of adding Hambeles (Myrtus communis L.) leaf to some roughage on rumen fermentation parameters by in vitro gas production technique. Corn silage, alfalfa hay and wheat straw were used as roughage. Hambeles leaf was added to roughage at the rate of 0%, 3%, 6%, 9% of the dry matter. According to the data obtained, it was determined that adding 6% and 9% Hambeles leaves to corn silage, 3%, 6%, and 9% to alfalfa hay, and 6% to wheat straw reduced methane levels. The addition of Hambeles leaves at a rate of 9% increased the NH3-N concentration in corn silage, but in contrast, it decreased it in alfalfa hay and wheat straw. Hambeles leaves added to corn silage increased in vitro organic matter digestibility at all addition rates, while an increase was observed at a 3% addition rate in wheat straw. It was determined that Hambeles leaves added to corn silage at all addition rates, and at a 9% addition rate in wheat straw, reduced protozoa count. The addition of Hambeles leaves at 6% and 9% in corn silage and 3% and 9% in alfalfa hay reduced the total volatile fatty acid concentration. However, the addition of Hambeles leaves at 6% to alfalfa hay increased the total volatile fatty acid concentration. In the light of these data, it is concluded that Hambeles leaves may have the potential to increase ruminal fermentation efficiency in different roughage sources and at different addition rates. In the presented study, it was observed that different addition rates of Hambeles leaves in different roughage sources had positive effects on various parameters in ruminal fermentation. Despite these positive effects, it is thought that more in vitro and in vivo studies are needed to determine the appropriate dosage for adding Hambeles leaves. © 2025 Chulalongkorn University Printing House. All rights reserved.
The Effects of Sunflower Oil and Selenium Supplementation To Laying Hen Diet on Performance, Egg Quality and Egg Shelf Life
(Ataturk Universitesi, 2021) Kale, Ç.; Bingöl, N.T.
In this experiment; the effects of additions sunflower oil and/or inorganic (sodium selenite) and organic selenium (selenium-enriched yeast) to laying hen diet on performance, egg quality and egg shelf life were investigated. A total of 252 42-week-old Lohmann LSL white laying hens were randomly assigned to 6 experimental groups with 7 replications (6 chickens per repeat). Experimental pattern was created according to a factorial experiment plan designed according to 2×3 random plots. Six experiment diets were created by adding two different selenium (0.3 mg/kg) to both diets prepared with/without sunflower oil (3%). The experiment was continued for 12 weeks. Although no significant difference was observed between the groups in terms of egg production, feed consumption, feed conversion ratio, specific gravity, Haugh unit, albumen and yolk ratio in the experiment, significant differences were determined in egg weight, shape index, shell ratio, shell thickness, egg yolk color, albumen and yolk ratio (P<0.05). Egg yolk thiobarbituric acid reactive substances (TBARS) were higher (P<0.05) in group added only sunflower oil compared to other experimental groups. It was determined that selenium supplementation decreased TBARS value in groups fed a fatty diet (P<0.05). As a result; It was observed that the addition of sunflower oil and/or different sources of selenium to the laying hen diet did not affect performance and egg quality parameters in general; the addition of sunflower oil to the diet increased the egg yolk TBARS value, selenium supplementation prevented this increase and had favorable effects on egg shelf life. © 2021 Ataturk Universitesi. All rights reserved.
Substitution of Alfalfa Hay With Rumex Pulcher L. and Its Effect on In Vitro Gas Production and Ruminal Fermentability
(Universidad del Zulia, Facultad de Ciencias Veterinarias, 2025) Güney, M.; Kale, Ç.
In this study, the effects of Rumex pulcher L. forage added to alfalfa hay as an alternative roughage source in ruminants at different mixing ratios (0, 25, 50 and 100%) on gas and methane production, in vitro digestibility properties and rumen fermentation parameters were determined by in vitro gas production technique. Experimental groups were formed of control (C: 100 % alfalfa hay), Rumex pulcher L. forage 1 (75 % alfalfa hay + 25 % Rumex pulcher L. forage), Rumex pulcher L. forage 2 (50 % alfalfa hay + 50 % Rumex pulcher L. forage) and Rumex pulcher L. forage 3 (100 % Rumex pulcher L. forage). Each experimental group was designed with 5 replicates. Rumex pulcher L. forage was significantly higher (P < 0.001) crude protein and lower neutral detergent fiber and acid detergent fiber content than alfalfa hay. While gas and methane production did not change in all treatments, Rumex pulcher L. forage 3 had the highest organic matter digestibility compared to the other treatment groups. As the rates of Rumex pulcher L. forage increased, an increase was observed in the amount of microbial protein synthesis parameters. Rumen parameters except acetic acid were different among all treatments. Rumex pulcher L. forage can be included in ruminant rations in order to reduce feed costs, due to its superior properties compared to alfalfa hay in terms of nutrient composition, in vitro digestibility and microbial protein synthesis. Furthermore, it is important to conduct further studies on this species, which grows uncultivated in nature, and explore it as an alternative forage source. © (2025), (Universidad del Zulia). All rights reserved.