BTBilginer Tuna

Bilginer Tuna

*This is an algorithmically generated author record based on publicly available information.

Bilginer Tuna has a total of 13 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    Phenotypic Associations Among Udder Conformation, Teat Morphology, Body Condition, and Lameness Scores in Post-Lambing Ewes

    by Bilginer Tuna, Yalçın Alper Özturan, İbrahim Akın

    Udder conformation and teat morphology are functionally relevant traits in ewes, but their relationships with body condition and lameness scores remain insufficiently characterized under field conditions. This cross-sectional observational study evaluated phenotypic associations among body condition score (BCS), lameness score (LS), udder conformation, and teat morphology in 118 post-lambing ewes from three flocks in Aydin, Türkiye. Body condition was scored on a 1–5 visual scale, lameness on a 1–5 scale, and udder and teat traits using a 1–9 linear scoring system. Associations among traits were assessed using Spearman correlation analysis, and selected variables were compared across BCS and LS categories using the Kruskal–Wallis test with Bonferroni correction. Udder support traits were negatively associated with udder depth, particularly fore udder attachment (ρ=-0.627, P

  • Protective roles of gallic acid and lycopene against 4-nonylphenol induced testicular damage in SD rats

    by Ozay Gules, Sadiye Kum, Zahid Naseer, Murat Boyacioglu, Emine Ozel Armutoglu, Mustafa Yildiz, Murat Kırıkkulak, Göksel Doğan, Esra Bilici, Aybike Türkmen, et al.

    4-Nonylphenol (4-NP), an endocrine disruptor, is known to induce mutagenic, toxic, or carcinogenic effects, including testicular toxicity via inducing oxidative stress and apoptosis. The objective of this work was to determine the capacity of lycopene (LC) and gallic acid (GA) to protect testicular histological structure, biochemical responses, and semen parameters in rats exposed to 4-NP. In this 28-day dietary trial, six groups (n= 6 per group) received treatment via oral gavage: a control (corn oil, 2 mL/kg/day), LC (10 mg/kg body weight (BW)/day), GA (50 mg/kg BW/day), 4-NP (125 mg/kg BW/day), LC + 4-NP (LC followed by 4-NP), and GA + 4-NP (GA followed by 4-NP) groups. The results indicated that 4-NP administration adversely affects the final body weight, testicular histology, seminiferous epithelium heights (SEHs) (4-NP: 57.95 ± 0.49, p : 0.000), follicle-stimulating hormone (FSH) level, testis antioxidant capacity, testis malondialdehyde (MDA) level, and sperm viability and morphology. LC and GA supplementation significantly improved SEHs, activities of testis superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH), and sperm viability compared to the 4-NP group. Moreover, LC and GA exposures decreased histopathological lesions, including germinal epithelial degeneration, vacuolization, immature germ cells in the tubular lumen, and congestion in the interstitial area. Furthermore, they lowered TUNEL-positive cell counts and tubule percentages, testicular MDA levels, and abnormal sperm percentages. To our knowledge, this study provides one of the first systematic comparisons of lycopene and gallic acid in protecting against 4-NP-induced testicular toxicity under identical experimental conditions. The findings suggest that both compounds preserve testicular structure and function through their antioxidant and anti-apoptotic properties.