Browsing by Author "Irak, K."

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Ascorbic Acid and Heat Stress in Laying Hens
(Medwell Journals, 2014) Mert, H.; Mert, N.; Irak, K.
There are so many stressors, like heat, effects the egg production in laying hens. Experiment was conducted in a poultry farm inBursa. 1730Hy-Line W77 layer aged 40 weeks assigned to caging unit were used as research materials. Hens were divided into six groups and had different amount of ascorbate supplementation; 0, 50, 100, 150, 200 and 250 mg kg-1 feed. Egg production and body weighted were recorded. As result the best ascorbate supplementation to decrease heat stress for this experiment was 100 mg kg-1 feed.© Medwell Journals, 2014.
Occurence and Genotype Distribution of Cryptosporidium Spp., and Giardia Duodenalis in Sheep in Siirt, Turkey
(Polska Akad Nauk, Polish Acad Sciences, Univ Warmia & Mazury Olsztyn, 2023) Celik, B. Aslan; Celik, O. Y.; Ayan, A.; Kilinc, O. Orunc; Akyildiz, G.; Irak, K.; Ayan, O. Oktay
Cryptosporidium spp., and Giardia duodenalis are intestinal protozoan parasites known to infect humans and various animals and cause diarrhea. This study aimed at determining the prevalence and genotype of Cryptosporidium spp. and Giardia duodenalis in sheep in different locations of Siirt province. The fecal material for this study was collected from 500 sheep in different locations of Siirt province, Turkey. Fecal samples obtained from sheep were examined for Cryptosporidium spp. by Kinyoun Acid Fast staining and the Nested PCR method. Microscopic and Nested PCR methods revealed a prevalence of 2.4% (12/500) and 3.6% (18/500), respectively. Sequence analysis revealed the presence of C. ryanae, C. andersoni, and zoonotic C. parvum. In terms of Giardia duodenalis, 8.4% (42/500) and 10.2% (51/500) prevalence was determined using Nativ-Lugol and Nested PCR methods, respectively. Using sequence analysis, zoonotic assemblages A and B as well as assemblages E and D were detected. As a result of this study, both the prevalence of Cryptosporidium spp. and Giardia duodenalis and the presence of species that appear to be host-specific, as well as those known to be zoonotic, were revealed. A large-scale study is needed to understand the impact of these agents on sheep farming and their consequences on human health.