Yazar "Demirci, M." seçeneğine göre listele

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    Comparative Nutritional Analysis of Domestic and Imported Commercial Canary Egg Food and Mixed Seeds Based Diets
    (Facta-Fundacio Arnco Ciencia Tecnologia Avicolas, 2023) Demirci, M.; Mevliyaogullari, E.
    In this study, the aim was to determine the nutritional content of specially formulated commercial soft/egg foods for canaries, preferred by professional breeders in Turkiye, and the nutritional and raw material content of seed mixtures, thereby providing insights into the general diet compositions and essential feeding regimens for canaries. The study examined 17 different seed types, eight mixed seed feeds, and 11 egg food formulations. Two main groups, domestic and imported, were formed from these mixed seed feed and egg food products. The nutritional content ratios of each feed material were determined through chemical analyses, and the predicted metabolizable energy values were calculated and compared between group averages. According to the results, there were no significant differences (p>0.05) between the data of domestic and imported mixed seed feed groups in terms of parameters other than crude fiber (CF). However, the CF value was found to be statistically significantly lower in the imported group (p<0.05), and a decreasing trend in the crude ash (CA) value was also observed in the same group. It was determined that almost all parameters resulted in similar values between the domestic and imported egg food groups. However, when each feed product was evaluated separately, significant data differences and wide variation ranges were found within the groups, especially in terms of crude fat and starch parameters. As a result, it is understood that domestically produced commercial egg food formulations with basic nutritional content comparable to European imported products are available for use by canary breeders in Turkiye. However, it is apparent that imported products, particularly in mixed seed formulations, had raw materials with lower CF and CA contents.
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    Determination of quality and nutrient content of artichoke by-products ensilaged with barley and molasses
    (Kielanowski Inst Animal Physiology Nutrition, 2023) Demirci, M.; Kara, K.; Karsli, M. A.
    The aim of this study was to determine the nutrient composition and quality of artichoke by-products ensiled with barley and molasses. Artichoke by-products included leaf, bracts and stalks of plants. Materials for ensiling were prepared from artichoke by-products without any additives (control silage), or with barley and molasses in the amounts of 2.5% and 5%, respectively. The prepared materials were ensiled in jars, incubated, and then the nutrient contents, selected fermentation parameters, and in vitro dry matter digestibility (IVDMD) of these silage samples were determined. Barley and molasses supplementation increased dry matter, organic matter, IVDMD, pH, lactic and acetic acid values of the silage from artichoke by-products (P < 0.05). However, the content of crude protein, ash, neutral detergent fibre and acid detergent fibre decreased in artichoke by-product silage due to barley and molasses supplementation (P < 0.05). In addition, it was determined that propionic acid and ammonia-N levels were similar between the groups (P > 0.05), but butyric acid did not occur at all. In vitro ruminal energy (metabolisable energy and net energy lactation) and IVDMD values of artichoke by-product silages with additives were higher than those of the control silage. As a result, it has been concluded that it is possible to produce similar silages to maize silage from green/fresh artichoke by-products in terms of both organoleptic properties and nutrient content. Moreover, it was also observed that supplementing the silage material with barley and molasses additives significantly improved silage quality.
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    Öğe
    Determining the effects of black cumin seed oil on performance and meat fatty acid profile of broiler chickens
    (South African Journal Of Animal Sciences, 2019) Demirci, M.; Karsli, M. A.; Aluc, Y.
    This study was designed to investigate the effects of adding black cumin (Nigella sativa L.) seed (BCS) oil to diets for broiler chickens on their performance and the meat fatty acid profile of the meat. Broiler chicks were assigned to three groups. The unsupplemented control did not receive BCS oil. The two treated groups received 0.5% and 1% BCS oil. The live weight and live weight gain of the experimental groups were generally greater for the treated groups than for the control group. Feed consumption did not differ among groups, and thus the group that was fed the diet supplemented with 1% BCS oil was most efficient. Total saturated fatty acids were lower, and polyunsaturated fatty acids were greater in the treated groups, but monounsaturated fatty acids were greater in meat from the control group. As a result, it can be concluded that the addition of 0.5-1% BCS oil into the diets of broiler may improve the performance of chicks and enrich the meat quality by creating meaningful changes in meat fatty acid profiles, especially in terms of total polyunsaturated fatty acids.