Browsing by Author "İpek, A."

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Acute and chronic eggshell temperature manipulations during hatching term influence hatchability, broiler performance, and ascites incidence
(Elsevier, 2015-02) Sözcü, A.; İpek, A.; Uludağ Üniversitesi/Ziraat Fakültesi/Zootekni Bölümü.; 0000-0002-0955-4371; 0000-0001-5544-2330; AAA-5866-2020; AAH-2551-2021; 56032385300; 56208332300
The aim of the current study was to determine how a control temperature and acute and chronic high eggshell temperatures during the last three days of incubation, can affect hatchability, chick quality, and organ development on day of hatch as well as broiler performance and ascites incidence in later life. The eggshell temperature manipulations were applied during hatching term (days 19 to 21) as follows: control EST (37.3 to 38.0 degrees C), acute high eggshell temperature manipulations (38.4- to 39.0 degrees C for three hours daily) and chronic high eggshell temperature manipulations (38.4 to 39.0 degrees C). The lowest hatchability and the highest cull chick rate were in the chronic high eggshell temperature manipulations group. Lower chick quality parameters correlated with lower chick weights and heavier residual yolk sac weights that were in the chronic high eggshell temperature manipulations group depending on hatch time. The live weights on the 1st day of the growing period were higher in the control and acute high eggshell temperature manipulations groups than the chronic high eggshell temperature manipulations group. At 6 wk of age, live weights of broilers were the highest in the control than in the acute and chronic high eggshell temperature manipulations groups. The total mortality was 2.5, 9.2, and 13.3%, the mortality due to ascites was 2.1, 8.3, and 12.9% in the control, acute, and chronic high eggshell temperature manipulations groups, respectively. The right ventricular/total ventricular ratios for the control, acute and chronic high eggshell temperature manipulations groups were 0.22, 0.28, and 0.30%, respectively. In conclusion, short-term and long-term higher temperatures during the hatching term affect embryo development, incubation results, broiler performance, and ascites incidence. Although the acute high eggshell temperature manipulations did not affect the chick quality parameters at hatch, it negatively affected incubation results and broiler performance, especially mortality due to ascites.
Assessment of genetic diversity and relationships among some sweet cherry cultivars using aflp™ markers
(Int Soc Horticultural Science, 2008-01-01) Burak, M.; Lang, GA; Gülen, H; Ipek, A; İpek, A.; Gülen, Hatice; Eriş, Atilla; Bursa Uludağ Üniversitesi/Ziraat Fakültesi.; Burak, M; Lang, GA; Gulen, H; Ipek, A; 0000-0001-7586-3108; AFW-5375-2022
Sweet cherry is an economically important crop in Turkey but the relationship among Turkish and foreign cherry cultivars has not been properly determined yet. In this study, amplified fragment length polymorphism (AFLP) has been utilized to analyze genetic diversity among 22 sweet cherry cultivars including some Turkish and foreign cultivars using total genomic DNA. Four EcoRI and MseI primer combinations with three base selective nucleotides extension generated 30 polymorphic AFLP fragments. A UPGMA dendrogram was constructed to demonstrate the genetic relationship among the sweet cherry cultivars. No two cultivars shared identical AFLP banding patterns, indicating all local Turkish cultivars were unique. UPGMA analysis clustered the sweet cherry cultivars analyzed in this study into four putative groups. For further characterization of Turkish sweet cherry, additional cherry cultivars will be analyzed using AFLP and SSR markers.
Association of SSR markers with contents of fatty acids in olive oil and genetic diversity analysis of an olive core collection
(Funpec-Editora, 2015-03-27) Şeker, M.; Gül, M. K.; İpek, M.; İpek, A.; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.; 0000-0002-0609-3442; 0000-0002-9136-3186; AAH-3233-2021; AAK-4655-2021; 16031208900; 6603912487
The purpose of this research was to characterize an olive core collection using some agronomic characters and simple sequence repeat (SSR) markers and to determine SSR markers associated with the content of fatty acids in olive oil. SSR marker analysis demonstrated the presence of a high amount of genetic variation between the olive cultivars analyzed. A UPGMA dendrogram demonstrated that olive cultivars did not cluster on the basis of their geographic origin. Fatty acid components of olive oil in these cultivars were determined. The results also showed that there was a great amount of variation between the olive cultivars in terms of fatty acid composition. For example, oleic acid content ranged from 57.76 to 76.9% with standard deviation of 5.10%. Significant correlations between fatty acids of olive oil were observed. For instance, a very high negative correlation (-0.812) between oleic and linoleic acids was detected. A structured association analysis between the content of fatty acids in olive oil and SSR markers was performed. STRUCTURE analysis assigned olive cultivars to two gene pools (K = 2). Assignment of olive cultivars to these gene pools was not based on geographical origin. Association between fatty acid traits and SSR markers was evaluated using the general linear model of TASSEL. Significant associations were determined between five SSR markers and stearic, oleic, linoleic, and linolenic acids of olive oil. Very high associations (P < 0.001) between ssrOeUA-DCA14 and stearic acid and between GAPU71B and oleic acid indicated that these markers could be used for marker-assisted selection in olive.
Determination of hybrid potential of carrot germplasm
(Int Soc Horticultural Science, 2019-01-01) Lokoğlu, N.; Gökce, A. F; İpek, A.; İPEK, AHMET; Bursa Uludağ Üniversitesi/Ziraat Fakültesi.; Gokce, AF
The use of the seed of hybrid cultivars for carrot production in Turkey has reached to 90% and this hybrid carrot cultivar seed has been imported from abroad in Turkey, 2 t of seeds from open-pollinated cultivars and 18 t of seeds from hybrid cultivars were used for carrot production. While the seed of open-pollinated cultivars was sold for 150-200 TL kg(-1), the price of one kg of seed of hybrid cultivars was 7501,500 TL. Hybrid cultivars were preferred by producers due to the above mentioned reasons. The reasons why hybrid cultivars have been preferred for carrot production are high yield and uniform root size, shape, color and taste. In this research project, potential to convert open pollinated cultivars collected from Turkey and abroad to hybrid cultivars will be determined. Petalloid cytoplasmic male sterility has been preferred because it is easy to observe male sterility from the morphology of carrot flowers. Therefore, for hybrid seed production, maintainer lines have to be identified to propagate male sterile female parent. This Project began at 2013 in Transitional Zone Agricultural Research Institute. This is a project of the General Directorate of Agricultural Research and Policies.
The effects of broiler breeder age on intestinal development during hatch window, chick quality and first week broiler performance
(Taylor & Francis, 2015-10-02) İpek, A.; Sözcü, A.; Uludağ Üniversitesi/Ziraat Fakültesi/Zootekni Bölümü.; AAH-2551-2021; AAA-5866-2020; 56208332300; 56032385300
This study was carried out with the aim of determining the effects of breeder age on incubation results, intestinal development during hatch window, chick quality and first week broiler performance. A total of 4800 eggs were obtained from commercial Cobb 500 broiler breeder flocks at 33 and 62 weeks old. Of these 33 and 62 weeks old flocks, 31.4% and 7.0% were hatched 24 h before pull time and 51.2% and 56.0% were hatched 12 h before pull time, respectively. Hatchability of fertile eggs and hatchability of total eggs were found higher in 33 weeks old flock than the other. The chick hatch weight was determined as 39.5 g and 41.4 g in 33 and 62 weeks old flocks, respectively. Chick weight/initial egg weight rate was found to be higher as 67.3% in the 33 weeks old flocks. On hatching day, chick length were also higher in 62 weeks old flock. Relative yolk-free chick weight was higher in 33 weeks old (85.0%) flock than the other (82.0%). Intestine weight rate was higher as 5.27% in chicks from 33 weeks old than the other (5.08%). At 1 week of age, the body weights and weight gains were 165.1 g and 156.0 g, and 125.6 g and 114.6 g in 33 and 62 weeks old flocks, respectively. Higher mortality ratio as 3.6% was observed in 62 weeks old flock. In conclusion, intestinal development during hatch window, incubation parameters, chick quality and first week broiler performance is affected by breeder age.
Effects of dietary inclusion of probiotics and prebiotics (SynerAll) on growth performance and serum biochemical parameters in broilers.
(Oxford Univ Press Inc, 2016-10-01) İpek, A.; Sözcü, Arda; Akay, V.; SÖZCÜ, ARDA; Akay, V.; Uludağ Üniversitesi/Ziraat Fakültesi/Zootekni Bölümü; FCM-0798-2022; HXQ-7280-2023
Molecular markers development and application in garlic
(Int Soc Horticultural Science, 2020-01-01) Simon, P. W.; Gupta, S; İlbi, H; Aydemir, BC; İpek, M.; İpek, A.; Bursa Uludağ Üniversitesi/Ziraat Fakültesi.; Gupta, S; Ilbi, H; Aydemir, BC
Garlic (Allium sativum L.) as a clonally propagated crop has a considerable amount of genetic diversity and very large genome which limits genetic and molecular studies in this crop. Molecular markers have been successfully applied for revealing genetic diversity, constructing linkage maps, and developing treat associated markers in garlic. In previous studies, the genetic diversity among garlic clones was mainly determined using isozyme, amplified fragment length polymorphism (AFLP), random amplified polymorphic DNA (RAPD) markers, and simple sequence repeat (SSR) markers. The tree topologies of markers systems were generally concordant but RAPD and isozyme dendrograms reflected less polymorphism. Molecular markers demonstrated that genetic diversity among the garlic clones is high. A DNA marker for significantly associated with the bolting phenotype of garlic was developed from the mitochondrial genome. This marker discriminated bolting garlic clones from non-bolting genotypes efficiently. The genetic map of garlic was also constructed using AFLP markers and gene-specific markers. The map of garlic demonstrated that the garlic genome consists of a high amount of duplications and generated linkage groups can be utilized to map important traits. Garlic has a complex genome, therefore, more co-dominant markers such as single nucleotide polymorphism (SNP) and SSR markers are needed to improve genetic and breeding studies in this crop.