2022 Cilt 41 Sayı 2

Permanent URI for this collectionhttps://hdl.handle.net/11452/30978

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Browsing by Department "Zootekni Ana Bilim Dalı"

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    Effects of keel bone deviation on post-peak egg production in a commercial laying hen flock with different breast condition
    (Bursa Uludağ Üniversitesi, 2022-08-09) Abdourhamane, Ibrahima Mahamane; Petek, Metin; Brav, Fahir Cankat; Ünal, Cihan; Veteriner Fakültesi; Zootekni Ana Bilim Dalı; 0000-0003-4560-2438; 0000-0003-0557-9720; 0000-0002-6378-5736
    This study was made to investigate the effects of breast condition and keel bone deviations on post-peak egg production of a commercial laying hen housed in a multi-tier conventional battery cage. The birds divided into two groups according to presence of keel bone deviation at first. Then the birds further divided into two groups according to breast condition as well developed or relatively well developed. The laying hens were kept under identical management conditions for commercial laying hens during the study. Data about daily egg production, feed intake, mortality and egg weight was collected from 62 to 77 weeks of age in the groups. There were no significant effects of keel bone deviation on body weight and egg weight of the layer hens. The initial and final body weight of the birds are significantly different between the breast condition groups (P<0.001). The birds with well developed breast condition had significantly better hen-housed and hen-day egg production (P<0.001). The significant keel bone deviation x breast condition interaction for egg production revealed that presence of keel bone deviation was effective in birds only had relativelly well developed breast condition (P<0.001). Daily feed intake per hen and survival rate between the groups were not affected by presence of keel bone deviation and breast condition of the birds. Results from this study indicated there was a link among breast condition, presence of keel bone deviation and egg performance of laying hens.
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    Ensuring the reproduction of gazelles, whose numbers are decreasing in Türkiye and whose habitats are confined to a narrow region, in new habitats
    (Bursa Uludağ Üniversitesi, 2022-11-30) Uztemur, Adil; Orman, Abdulkadir; Veteriner Fakültesi; Zootekni Ana Bilim Dalı; 0000-0001-9138-4422
    The aim of this study was to resettle Gazella Marica, whose habitats are declining in Türkiye, to the foothills of Cudi Mountain, which is connected to the Silopi District of Şırnak Province, which was previously located within the natural habitat zone. The gazelles obtained from the 75th Year Gazelle Production Station were placed in individual crates of 100x36x90 cm made of plywood, with 51 numbers (24 females, 27 males) gazelles in 2020 and 40 numbers (19 females and 21 males) in 2021. Mass releases were made with a ceremony in an area with similar climatic characteristics, which is approximately 380 km away. 1 gazelle died in 2020, 6 gazelles died in 2021. During the post-release monitoring activities, the first reproduction records of gazelles released in 2020 were successfully recorded in 2021 and 23 new individuals were obtained. The current number of individuals reached 106. It has been observed that gazelles have adapted to the area in the 2 years. Illegal hunting is prevented as the region is within the borders of military security. Monitoring studies continue for the long-term management plan.