Person: YILMAZ DİKMEN, BİLGEHAN
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YILMAZ DİKMEN
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BİLGEHAN
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Publication Impact of light-emitting diode and compact fluorescent lighting type and cage tier on layers reared in an enriched cage system, part 2: Some welfare traits(TÜBİTAK, 2019-08-05) Tünaydın, Gülsüm; Yılmaz Dikmen, Bilgehan; Tünaydın, Gülsüm; YILMAZ DİKMEN, BİLGEHAN; Ziraat Fakültesi; Zootekni Bölümü; 0000-0003-0707-7572; 0000-0002-4397-5428; G-3725-2017; EAY-3502-2022The aim of this study was to determine the effects of lighting type [light-emitting diode (LED) and compact fluorescent (FLO) light] and cage tier on welfare traits such as feather score, body and comb wounds, bumble foot and footpad dermatitis, beak damage, keel bone deformity, finger damage, aggressive pecking behavior, and the avoidance distance test (ADT) in laying hens reared in an enriched cage system. A total of 400 layers were used to determine these traits at 25 and 45 weeks of age. A total of 80 layers were used to determine tonic immobility (TI) duration and induction number. The dust accumulation rate (DAR I and DAR II) was recorded to determine the activity of layers under different lighting sources at 25, 35, and 45 weeks of age. The highest DAR I and DAR II were determined in the FLO group at 35 and 45 weeks of age (P < 0.05). The worst comb wound and highest ADT were found in the FLO group at 25 weeks of age (P < 0.05). In the FLO group the mean feather score, comb wound, and finger damage were worse than in the LED group (P < 0.01). In addition, aggressive pecking behavior (P < 0.01) was observed more in the FLO group at 45 weeks of age (P < 0.05). The breast and vent feather scores (P < 0.001), mean body feather score, comb wound, and footpad dermatitis of hens at 45 weeks of age (P < 0.05) were worse in lower cage tiers. In conclusion, using LED light in poultry houses helps to increase some of the welfare parameters. Cage tier significantly affects the welfare parameters, and this effect is clearer around 45 weeks of age in layers.Publication Impact of different ratios of single and double interspiking on reproductive performance, some body welfare, and blood parameters of broiler breeders(Springer, 2023-02-01) Sabah, Saliha; Yılmaz Dikmen, Bilgehan; Sabah, Saliha; YILMAZ DİKMEN, BİLGEHAN; Ziraat Fakültesi; Zootekni Bölümü; 0000-0003-4577-8054; 0000-0002-4397-5428; G-3725-2017; FWU-6336-2022The purpose of this study was to investigate the effects of different levels of single and double interspiking on reproductive performance, some body welfare, and blood parameters of broiler breeder flock. The study was carried out on a total of 3840 female and 384 male (with average weight 4706.07 & PLUSMN; 307.9 g) Ross 308 broiler breeders having age between 28 to 59 weeks in a broiler breeder house (40 & DEG;13 & PRIME;16.3 & DPRIME;N, 28 degrees 48'19.8 "E) of a private commercial poultry company. A single interspiking was applied at the age of 45 weeks, and a double interspiking was applied at the age of 53 weeks with the ratio 75, 50, and 25% of the males in the trial groups were changed. The age was affected fertility ratio, hatchability of total eggs, and hatchability of fertile eggs in the single and double interspiking groups (P < 0.0001). While the spiking ratio was affected hatchability of fertile eggs in the single interspiking group (P < 0.0001), it was affected the fertility ratio, hatchability of fertile eggs in the double interspiking group (P = 0.015 and P = 0.024). The spiking type was affected fertility ratio and hatchability of total eggs (P = 0.002 and P = 0.001). The age and spiking ratio interaction was affected fertility ratio, hatchability of total eggs, and hatchability of fertile eggs in the single (P < 0.0001, P < 0.0001, and P = 0.053; respectively), and double interspiking groups (P = 0.015, P = 0.009, and P = 0.008; respectively). The age and spiking ratio and age- and spiking-type interaction were not affected body feather score and vent score in single and double interspiking group (P > 0.05). The age, spiking ratio, and type were not affected blood heterophil, lymphocyte, and heterophil/lymphocyte (H/L) ratio in the single and double interspiking group (P > 0.05). In conclusion, spiking program can be applied to the flocks which have poor management conditions and/or have less fertility traits.Publication Spiking applications in broiler breeders and its effect on reproduction performance(Taylor, 2023-05-15) Sabah, Saliha; Dikmen, Bilgehan Yılmaz; Sabah, Saliha; YILMAZ DİKMEN, BİLGEHAN; Ziraat Fakültesi; Zootekni Bölümü; 0000-0003-4577-8054; 0000-0002-4397-5428; G-3725-2017; FWU-6336-2022According to current reports, broiler breeder eggs have a high fertility rate at the beginning of production, but a quick decline occurs in fertility after 40 to 45 weeks. In actuality, female broiler breeders require more frequent breeding to maintain high fertility, whereas males of the same age are less interested in breeding and the hatchability of eggs starts to decline with age. Due to these circumstances, proper care and management are essential for aged breeder flocks to maintain good reproductive performance and production. In order to address the issue of declining fertility in older flocks, spiking application has just begun to be included in the maintenance and management methods of many breeders worldwide. To encourage the flock's mating activity, this strategy entails replacing some of the existing male breeders with young or older breeders. With young or old roosters, the spiking exchange can be used in single or double forms. The objective of this review is to provide in-depth information about spiking, which has a variety of forms, and to compile the results of relevant research.Publication Impact of light-emitting diode and compact fluorescent light source type and cage tier on layers reared in an enriched cage system part 1: Production performance and egg quality(Tübitak Bilimsel ve Teknolojik Araştırma Kurumu, 2019-01-01) Tünaydın, Gülsüm; Yılmaz Dikmen, Bilgehan; Tünaydın, Gülsüm; YILMAZ DİKMEN, BİLGEHAN; Ziraat Fakültesi; Zootekni Bölümü; 0000-0002-4397-5428; G-3725-2017; EAY-3502-2022This study's aim was to investigate the effects of age, light source type (light-emitting diode (LED), and compact fluorescent (FLO)), and cage tier on production performance and egg quality traits of layers reared in the enriched cage system. A total of 800 Nick Chick White layers were used in the study. A total of 800 eggs were used for egg quality traits at 25 and 45 weeks of age. The enriched cage tiers were coded as I, II, III, and IV from bottom to top. Layer age significantly affected egg mass, hen-day egg production rate, hen-house egg production rate, feed consumption, feed conversion ratio, damaged egg ratio (P < 0.05), egg weight, shape index, shell thickness, albumen weight, yolk weight, shell weight, yolk color index, albumen ratio, yolk ratio, and shell ratio (P < 0.001). The higher egg mass, egg weight, albumen weight, yolk weight, shell thickness (P < 0.001), dirty egg ratio (P < 0.01), and lower FCR, yolk color index (P < 0.01), shell ratio (P < 0.01) were found in the FLO group when compared to the LED group (P < 0.05). Highest body weight was found in cage tier I at 45 weeks of age (P < 0.001). Level of cage tier significantly affected 50% egg production age, egg mass, hen-day egg production rate, hen-house egg production rate, and dirty egg ratio (P < 0.01). Level of cage tier significantly affected 5% egg production age, FCR, and shape index (P < 0.05). It can be concluded that the hens in the FLO group were better than the LED group in terms of some production and egg quality traits.Publication Effect of hatch weight on performance of Japanese Quails (Coturnix coturnix japonica) during growth and egg production period(Eugen Ulmer Gmbh Co, 2004-12-01) İpek, Aydın; Şahan, Ümran; Yılmaz, Bilgehan; İPEK, AYDIN; ŞAHAN, ÜMRAN; YILMAZ DİKMEN, BİLGEHAN; Hayvancılık Bilimleri Bölümü; 0000-0002-4397-5428; AAH-2966-2021; AAH-2551-2021; G-3725-2017Japanese Quails were seperated into 3 weight groups depending on hatching weight (1(st) group 5.5-6.2 g, 2(nd) group 6.3-7.0 g and 3(rd) group 7.1-7.8 g). The effect of hatching weight on mean live weight, weight gain, feed consumption and feed conversion during the rearing period was found significant (P < 0.05). The effect of hatching weight on mortality was not significant. Females in each group were placed in cages at the end of the rearing period (5(th) week). The effect of hatching weight on age and weight at sexual maturity was found to be significant (P < 0.01). Mean age of females at sexual maturity was found as 43.6, 42.0 and 41.6 days in the 1(st), 2(nd) and 3(rd) groups, respectively. Sexual maturity weight of females was found as 181.4 +/- 5.12, 194.7 +/- 5.68 and 203.4 +/- 6.94 g, respectively. The highest rate of lay and mean egg weights were obtained with the highest hatch weight group.