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Full-Text Articles in Medicine and Health Sciences
Effects Of Dietary Calcium, Phosphorus And Microbial Phytase On Intestinal Morphologyin Laying Hens, Sabi̇re Güler, Ender Deni̇z Asmaz, Nuray Varol Kayapunar, İhsan İşbi̇li̇r, Şeri̇fe Şule Cengi̇z, Derya Yeşi̇lbağ, Ahmet Batuhan Şanli, Eyüp Eren Gültepe
Effects Of Dietary Calcium, Phosphorus And Microbial Phytase On Intestinal Morphologyin Laying Hens, Sabi̇re Güler, Ender Deni̇z Asmaz, Nuray Varol Kayapunar, İhsan İşbi̇li̇r, Şeri̇fe Şule Cengi̇z, Derya Yeşi̇lbağ, Ahmet Batuhan Şanli, Eyüp Eren Gültepe
Turkish Journal of Veterinary & Animal Sciences
Different challenges are being applied in the poultry industry in order to protect animal health and to increase immunity and production. The supplementation of microbial phytase is essential in terms of both reducing the inorganic phytase rate and contributing to the absorption of other minerals. In this study, a newly isolated microbial phytase was added at different concentrations to the diet together with calcium (Ca$^{2+}$) and available phosphorus (AP), and the effects of this supplementation on intestinal absorption capacity and Ca$^{2+}$ binding capacity were investigated via morphological measurements and immunohistochemical examination of the duodenum and ileum. For this purpose, 90 …
Acute Phase Proteins, Endocrine And Productive Responses Of Laying Hens To Heat Stress, Amani Aldawood, Hosam Altamimi
Acute Phase Proteins, Endocrine And Productive Responses Of Laying Hens To Heat Stress, Amani Aldawood, Hosam Altamimi
Turkish Journal of Veterinary & Animal Sciences
This study was designed to characterize changes in the acute phase proteins (APPs), hormones parallel to performance, and egg quality traits in laying hens exposed to heat stress (HS). A total of 120 sixteen-week-old Lohmann hens was allowed an adaptation period of 5 weeks in 3 different rooms at 21 °C. The hens were then exposed to one of three climatic thermal treatments over the next 6 weeks; thermoneutrality (TN, 21 °C), constant (C-HS, 28 °C), and cyclic HS (HS, 20 h/d at 28 ± 1 °C and 4 h/d at 33 ± 1 °C). Blood samples were weekly obtained, …