Browsing by Author "Ayhan V."

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    Performance of layer or broiler breeder hens varies in response to different probiotic preparations
    (2011) Bozkurt M.; Küçükyilmaz K.; Ayhan V.; Çabuk M.; Çatlil A.U.
    The effect of three probiotic dietary supplements on the laying and reproductive performance of layer hens and broiler breeder hens was investigated. A total of four hundred and eighty, 22-week-old layer hens were given diets containing one of three probiotics (1 g/kg diet for each probiotics) from weeks 22 to 49. Seven hundred and twenty female and sixty-four male broiler breeders were also subjected to the same additive feeding procedure between 21 and 50 weeks of age. The layer hen and breeder trials were initiated simultaneously and performed in pens located in the same area. Either egg production rate or egg weight was affected by the microbial cultures administered. Body weight and mortality were not affected. Egg production rate, egg weight and egg mass benefited from some of the pro-biotics, while, overall, the probiotics led to significant improvements in the feed conversion rate of layer hens. All of the probiotic preparations decreased the cracked-to-broken egg ratio, compared to the untreated control group. One of the three probiotic supplements significantly improved the egg production rate and increased the settable egg and chick yield per hen in broiler breeders, whereas, overall, pro-biotics tended to decrease settable egg weight. Probiotics enhanced hatchability, but no beneficial effects were observed on fertility. Based on these findings, it can be said that the micro-bial cultures in the probiotic preparations exhibited host-specific and strain-specific differences in their activities as performance-enhancer feed additives, with improvements in some selected performance parameters. © M. Bozkurt et al., 2011.
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    Elderly and aged asthma have different characteristics: results of a multicenter study
    (Turkiye Klinikleri, 2024) Damadoğlu E.; Öztürk Aktaş Ö.; Gemicioğlu B.; Yilmaz N.; Bozkuş F.; Ayhan V.; Kalpaklioğlu A.F.; Öner Erkekol F.; Havlucu Y.; Erel F.; Aydin Ö.; Ekici A.; Baççioğlu A.; Argun Bariş S.; Köycü Buhari G.; Ceyhan B.; Göksel Ö.; Köse M.; Dursun A.B.; Yildiz F.; Yorgancioğlu A.; Işik S.R.; Ediger D.; Oğuzülgen İ.K.; Demir A.U.; Karakaya G.; Kalyoncu A.F.
    Background/ aim: Characteristics of asthma in the elderly population is not well-known. The aim of the present study was to evaluate asthma in the elderly population, to compare disease characteristics between patients diagnosed <60 (aged asthma) and ≥60 (elderly asthma) years of age. Materials and methods: The study was a prospective, multicenter, cross-sectional type. A questionnaire was filled out to patients 60 years of age and over, that have been followed for asthma for at least 3 months. Asthma Control Test (ACT), eight-item Morisky Medication Adherence Scale (MMAS-8) was filled out, inhaler device technique was assessed. Results: A total of 399 patients were included from 17 tertiary care centers across the country. Mean age was 67.11 years and 331 (83%) were female. The age at asthma diagnosis was ≥60 in 146 (36.6%) patients. Patients diagnosed ≥60 years were older (p < 0.001), had higher education level (p < 0.001), more commonly had first-degree relative with asthma (p = 0.038), asthma related comorbidities (p = 0.009) and accompanying rhinitis/rhinosinusitis (p = 0.005), had better asthma control (p = 0.001), were using less controller medications (p = 0.014). Inhaler technique was correct in 37% of the patients with no difference in between the groups. Treatment compliance was better in elderly asthma patients (p < 0.001). In the multivariate logistic regression analysis, having well-controlled asthma (odds ratio = 1.61, CI = 1.04–2.51), and high medication adherence rate (odds ratio = 2.43, CI = 1.48–4.0) were associated with being in the elderly asthma group. Conclusion: The characteristics of asthma are different among patients aged 60 years and over which seems to be related to onset age of asthma. In our cohort, the elderly asthma patients had higher education level, and treatment adherence and asthma control was better. Patients diagnosed ≥60 years of age did not have more severe disease. © 2024, Turkiye Klinikleri. All rights reserved.