Sürdürülebilir Kalkınma Amaçları

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Yazarlar

• Akdemir, Fatih(1)
• Akkoyun, H. Turan(1)
• Aydın, Sevinç(1)
• Balci, Tansel Ansal(1)
• Bayramoglu Akkoyun, Mahire(1)
• Bengu, Aydın Ş.(1)
• Denli, Muzaffer(1)
• Ekin, Suat(1)
• Er, Besir(1)
• Erten, Fusun(1)
• Harlioğlu, Ayşe G.(1)
• Karacahan, Mehmet Kayra(1)
• Kom, Mustafa(1)
• Orhan, Cemal(1)
• Ozercan, Ibrahim Hanifi(1)
• Sahin, Emre(1)
• Sahin, Kazim(1)
• Sahin, Nurhan(1)

• MakaleYalnız künye2026Scopus SJRQ1/r/munzur/1022
  Boron source–dependent regulation of bone mineralization and osteogenic molecular pathways in broilers with tibial dyschondroplasia

  Orhan, Cemal; Sahin, Emre; Erten, Fusun; Er, Besir; Sahin, Nurhan; Ozercan, Ibrahim Hanifi; Kom, Mustafa; Akdemir, Fatih; Balci, Tansel Ansal; Denli, Muzaffer

  Rapid genetic selection for growth rate and slaughter weight in broilers has been associated with a higher incidence of skeletal disorders, particularly tibial dyschondroplasia (TD), which causes considerable economic losses in poultry production. We investigated the effects of boric acid (BA) and sodium pentaborate pentahydrate (SPP) on growth performance, bone mineralization, tibial histopathology, and osteogenic protein expression in broilers with manganese (Mn) deficiency-induced TD. A total of 360 Ross 308 broiler chicks were used in a 2 × 2 × 3 factorial design with TD status (normal or Mn deficiency–induced TD), boron source (BA or SPP), and supplemental boron level (0, 4.37, and 8.74 mg elemental B/kg diet). Birds were randomly allocated to 12 groups with six replicates of five birds each. Clinical and histopathological findings confirmed TD induction. TD decreased body weight, feed intake, and carcass weight, while increasing feed conversion ratio (p < 0.05). Boron supplementation improved tibial mineral density and content in a dose-dependent manner (p < 0.05). In TD broilers, serum osteocalcin (OCN) concentrations were higher with high-level SPP supplementation than with BA supplementation (p = 0.012). Boron source and level significantly affected serum and bone boron concentrations, bone calcium concentrations (p < 0.05). In TD broilers, tibial osteoprotegerin levels were markedly elevated in the high-level SPP group (p < 0.001), whereas SRY-box transcription factor 9, hypoxia-inducible factor-1α, and tumor necrosis factor-α were reduced (p < 0.05). These findings indicate that SPP exerts regulatory effects on bone metabolism and osteogenic signaling pathways in TD-affected broilers.

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• MakaleAçık Erişim2024Scopus SJRQ1/r/munzur/1775
  Optimization and Kinetic Study of Manganese Leaching from Pyrolusite Ore in Hydrochloric Acid Solutions with Oxalic Acid

  Karacahan, Mehmet Kayra

  The leaching behavior of pyrolusite minerals was examined in hydrochloric acid solutions, including oxalic acid, to evaluate the influence of various experimental conditions. The optimum parameters for the leaching process were found in the first stage, and the process's kinetics were assessed in the second. The concentrations of oxalic acid, hydrochloric acid, and temperature were chosen as independent variables in the optimization experiments, with the central composite design used to analyze the experimental data. The optimum concentrations for oxalic acid, hydrochloric acid, and temperature were determined to be 0.75 mol/L, 1.2 mol/L, and 60 °C, respectively. The leaching rate was determined to be 97.4% for 120 min of response time in optimum situations. The kinetic assessment experiments studied the effects of solid/liquid ratio, particle size, stirring speed, and temperature on the manganese leaching rate from pyrolusite. In the studies, the leaching rate was shown to rise with increasing temperature and stirring speed, as well as with decreasing particle size and solid/liquid ratio. The kinetic analysis revealed that the leaching kinetics matched the mixed kinetic model, and a mathematical model for the leaching process was developed. This process's activation energy was determined to be 29.05 kJ/mol. Graphical Abstract: (Figure presented.)

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  AtıfScopus17·WoS15·OpenAlex18

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• MakaleAçık Erişim2022Scopus SJRQ2/r/munzur/2589
  Determination of trace element and fatty acid levels in tissues of mirror and scaly carp (Cyprinus carpio L., 1758) living in Keban Dam Reservoir (Elazig)

  Aydın, Sevinç; Akkoyun, H. Turan; Bayramoglu Akkoyun, Mahire; Bengu, Aydın Ş.; Ekin, Suat; Harlioğlu, Ayşe G.

  This study investigated the concentrations of some accumulated trace metals (iron, manganese, zinc and copper) and fatty acids in liver and muscle tissues of mirror and scaly carp varieties (Cyprinus carpio L., 1758) living in Keban Dam Reservoir (Elazig), which is the second-largest artificial lake in Turkey that hosts commercially valuable and preferred fish varieties for human consumption. The inductively coupled plasma mass spectrometry (ICP-MS) method was used to analyse the concentrations of trace elements. Fatty acid levels were measured in a gas chromatography mass spectrometry (GC–MS) device, using a flame ionization detector (FID). Considering the two fish varieties and tissues that were studied, the mean metal concentrations (μg g−1) were found in the following ranges: Fe 12.32–49.97, Mn 0.12–0.62, Zn 10.45–86.59 and Cu 2.74–11.86. Although the lowest levels were detected in the muscle tissue for all the metals examined, the levels in the liver tissue were significantly higher. According to the results of the analyses on fatty acid concentrations, the mean total saturated fatty acid levels in the muscle tissue of the scaly carp and mirror carp varieties were found to be 31.07 and 31.43 (%), respectively, whereas these values for the liver tissue were consecutively 22.36 and 22.08 (%). Successively, the mean total levels of unsaturated fatty acids were determined as 68.93 and 68.40 (%) in the muscle tissue and 77.64 and 77.92 in the liver tissue. This study, with the finding that the trace (metallic) element accumulation rates were below the upper limits of the tolerable range, and the examined fish varieties were rich in fatty acids, shows that mirror carp and scaly carp living in Keban Dam Reservoir are highly nutritious for human diets.

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  AtıfScopus1·OpenAlex2

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