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Öğe Differences in performance, carcass characteristics and meat quality between fast- and slow-growing broiler genotypes(Mattioli 1885, 2019) Dogan, Sibel Canogullari; Baylan, Mikail; Bulancak, Aycen; Ayasan, TugayThis study was conducted to determine the differences in performance, carcass characteristics and meat quality between fast- and slow-growing broilers. Ross-308 genotype was used as the fast-growing genotype, while local T2-Y2 genotype was used as the slow-growing genotype. The study continued until both genotypes reached acceptable market weight (2 kg). Both genotypes consisted of 4 subgroups, each containing 50 broiler chicks. Fast-growing broilers reached market weight (2 kg) on day 38, while slow-growing broilers reached the same weight on day 72. Fast-growing broilers consumed less feed to attain 2 kg live weight compared with slow-growing broilers. The feed conversion ratio of the fast-growing broilers was 1.63, while that of the slow-growing broilers was 2.67. Significant differences were observed between the genotypes with regard to the percentage weights of the gizzard, liver, leg and breast. The percentage weights of the leg and abdominal fat were higher in slow-growing broilers, while the percentage weight of the breast was higher in fast-growing broilers. No difference was observed between the genotypes with regard to cooking loss in leg and breast meats, whereas differences were recorded with regard to the water holding capacity (%) in leg meat. The slow-growing genotype had lower pH values in breast and leg meats. The values of leg meat brightness (L*), redness (a*) and yellowness (b*) were higher in the slow-growing broilers, but the differences were not statistically significant. The L* and a* values of breast meat were found to be higher in slow-growing broilers. These results showed that in the slow-growing genotype, breast and leg meat color L, a and b value are enhanced. However, the fast-growing genotype has better performance and carcass characteristics compared to the slow-growing genotype.Öğe Influence of eggshell colour on egg yolk antibody level, incubation results, and growth in broiler breeders(Revista Brasileira Zootecnia Brazilian Journal Animal Sci, 2017) Baylan, Mikail; Celik, Ladine Baykal; Akpinar, Gulsen Copur; Alasahan, Sema; Kucukgul, Altug; Dogan, Sibel CanogullariThis study was performed to determine the effect of shell colour in eggs acquired from Ross-308 broiler breeders on the interior and exterior quality of the egg, the antibody content of the egg yolk, and growth performance. The shell colours of a total of 1350 eggs were classified, using a colorimeter, into three groups: dark (E < 64), medium (E: 64.00-67.00), and light (E > 67). The difference between groups with respect to egg weight, shape index, shell weight, and Haugh unit value was significant. Egg yolk antibody content (IgY) was 6.658 mg/mL in the dark colour group, 5.130 mg/mL in the medium colour group, and 5.242 mg/mL in the light colour group. Among incubation characteristics, the fertility rate as, in order, 94.66%, 92.14%, and 87.92% in dark, medium, and light shell colour eggs, and the hatchability was 87.00%, 84.28%, and 80.57%, in the same order. No significant difference was observed between groups with respect to hatchability of fertile eggs and embryonic mortality rates. No significant difference was observed between groups for live weight, feed intake, and feed conversion ratio either. The eggshell colour has an effect on yolk antibody content and on the hatchability, but it has no influence on hatchability of fertile eggs, Haugh unit and growth performance.Öğe Performance, egg quality and serum parameters of Japanese quails fed diet supplemented with Spirulina platensis(Parlar Scientific Publications, 2016) Dogan, Sibel Canogullari; Baylan, Mikail; Erdogan, Zeynep; Akpinar, Gulsen Copur; Kucukgul, Altug; Duzguner, VesileThis experiment was conducted to evaluate the influence of Spirulina platensis on growth performance, egg quality and some serum parameters of laying Japanese quails. For this experiment, 100 ten weeks-old, female Japanese quails (Coturnix coturnix Japonica) with similar body weight were caged individually and were randomly divided into four groups of 25 quails each. Quails were fed diets supplemented with 0 (control), 0.5, 1.0 and 2.0% Spirulina platensis for 8 weeks. Spirulina platensis addition did not affect feed conversion ratio, feed intake, egg production, egg weight, shape index, eggshell thickness and haugh unit, significantly (P>0.05). However, there were significant differences (P<0.05) in final body weight, yolk index, albumen index and eggshell weight of experimental groups. There were significant differences (P<0.05) between groups in low density lipoprotein (LDL cholesterol) and high density lipoprotein (HDL cholesterol) concentrations. The LDL cholesterol concentration decreased while HDL cholesterol concentration increased with the increased supplementation of Spirulina platensis. Spirulina platensis supplementation also decreased plasma total cholesterol and trigyliceride levels between groups numerically but not statistically (P>0.05). The mean egg yolk cholesterol levels dropped by 19.65 and 18.93% in the 1.0 or 2.0% Spirulina platensis supplemented groups compared with control group. In conclusion, Spirulina algae can be used safely in laying quails diets with important effects on serum parameters and egg yolk cholesterol. © 2016 PSP.Öğe PERFORMANCE, EGG QUALITY AND SERUM PARAMETERS OF JAPANESE QUAILS FED DIET SUPPLEMENTED WITH SPIRULINA PLATENSIS(Parlar Scientific Publications (P S P), 2016) Dogan, Sibel Canogullari; Baylan, Mikail; Erdogan, Zeynep; Akpinar, Gulsen Copur; Kucukgul, Altug; Duzguner, VesileThis experiment was conducted to evaluate the influence of Spirulina platensis on growth performance, egg quality and some serum parameters of laying Japanese quails. For this experiment, 100 ten weeks-old, female Japanese quails (Coturnix coturnix Japonica) with similar body weight were caged individually and were randomly divided into four groups of 25 quails each. Quails were fed diets supplemented with 0 (control), 0.5, 1.0 and 2.0% Spirulina platensis for 8 weeks. Spirulina platensis addition did not affect feed conversion ratio, feed intake, egg production, egg weight, shape index, eggshell thickness and haugh unit, significantly (P>0.05). However, there were significant differences (P<0.05) in final body weight, yolk index, albumen index and eggshell weight of experimental groups. There were significant differences (P<0.05) between groups in low density lipoprotein (LDL cholesterol) and high density lipoprotein (HDL cholesterol) concentrations. The LDL cholesterol concentration decreased while HDL cholesterol concentration increased with the increased supplementation of Spirulina platensis. Spirulina platensis supplementation also decreased plasma total cholesterol and trigyliceride levels between groups numerically but not statistically (P>0.05). The mean egg yolk cholesterol levels dropped by 19.65 and 18.93% in the 1.0 or 2.0% Spirulina platensis supplemented groups compared with control group. In conclusion, Spirulina algae can be used safely in laying quails diets with important effects on serum parameters and egg yolk cholesterol.Öğe The Effects of Licorice Root Powder (Glycyrrhriza glabra) on Performance, Serum Parameters, Egg Yolk Cholesterol and Antioxidant Capacity of Laying Japanese Quail(2018) Doğan, Sibel Canoğulları; Erdogan, Zeynep; Şekeroğlu, Ahmet; Baylan, Mikail; Küçükgül, AltuğThis study was conducted with the objectives to determine the effects of licorice rootpowder (Glycyrrhriza glabra) on performance, serum parameters, egg yolk cholesteroland antioxidant capacity in laying Japanese quail. Two hundred and forty 10-wk-oldJapanese quails were randomly assigned to four dietary groups, each one four timesreplicated with fifteen quails per dietary groups. Control group fed the basal diet; othergroups were fed basal diet supplemented with 0, 0.5, 1.0 and 1.5% licorice root powder.There were no significant differences in terms of final live weight, feed intake, feedconversion ratio, egg weight, serum cholesterol, triglyceride and High-DensityLipoprotein (HDL) concentration between treatment groups. Egg production was higherin control group and 0.5% licorice root powder supplemented groups. 1.0% licorice rootpowder supplemented group had lower egg production rate. Licorice root powdersupplementation decreased Low Density Lipoprotein (LDL) concentration and increasedglucose concentration significantly. Licorice root powder supplementation increased totalantioxidant status (TAS) and reduced total oxidant status (TOS) and oxidative stressindex (OSI). It was concluded from this study that supplementation of licorice rootpowder at the level of 0.5, 1.0 and 1.5% to the feed of laying quails had no adverseeffects on performance. Licorice root powder supplementation can be used to reducecholesterol level and increase antioxidant status in quails.Öğe The impact of eggshell colour and spot area in Japanese quails: I. eggshell temperature during incubation and hatching results(REVISTA BRASILEIRA ZOOTECNIA BRAZILIAN JOURNAL ANIMAL SCI, 2016) Alasahan, Sema; Akpinar, Gulsen Copur; Canogullari, Sibel; Baylan, MikailThis study was carried out to investigate the effects of eggshell colour and spot properties (colour and size of the spot area) on eggshell incubation temperature and hatching outcomes of Japanese quail eggs (Coturnix coturnix japonica). Study material was allocated to five groups according to their eggshell and spot colours: black spots on greyish white coloured eggshell (I), blue spots on greyish white coloured eggshell (II), diffuse brown spots on greyish brown coloured eggshell (III), brown spots on light green coloured eggshell (IV), and small brown spots on greyish brown coloured eggshell (V). The size of the spotted area was determined in each egg group using digital image analysis. Mean relative weight losses of hatched and unhatched eggs between days 0-10 and 0-14 of embryonic development were 4.76% and 10.48% and 9.17% and 15.46%, respectively. The mean eggshell temperatures of hatched and unhatched eggs measured at the equatorial region on days 10 and 14 during embryonic development were 36.92 and 37.79 degrees C and 36.84 and 37.18 degrees C, respectively. Eggshell temperatures at the equatorial region on days 10 (36.89 degrees C) and 14 (37.57 degrees C) of embryonic development were lower than the fixed temperature of the incubator (37.6 degrees C). Fertility, hatchability of fertile eggs, and hatchability and embryonic mortality rates do not vary in relation to eggshell colour or the size of the spotted area.Öğe The impact of eggshell colour and spot area in Japanese quails: II. Slaughter and carcass characteristic(REVISTA BRASILEIRA ZOOTECNIA BRAZILIAN JOURNAL ANIMAL SCI, 2016) Alasahan, Sema; Akpinar, Gulsen Copur; Canogullari, Sibel; Baylan, MikailThis study was carried out to investigate the effects of eggshell colour and spot properties (colour and size of the spot area) on growth performance and carcass traits of Japanese quail (Coturnix coturnix japonica) eggs. Study material were allocated to five groups according to their eggshell and spot colours: black spots on greyish white coloured eggshell (I), blue spots on greyish white coloured eggshell (II), diffuse brown spots on greyish brown coloured eggshell (III), brown spots on light green colored eggshell (IV), and small brown spots on greyish brown coloured eggshell (V). The size of the spotted area was determined in each egg group using digital image analysis. The groups did not differ for body weight and length of the shank at the end of the growth period. However, the groups differed significantly for carcass yield after slaughter (not eviscerated) and carcass yield. These parameters were highest in Group I (82.08 and 76.09%) and lowest in Group III (80.20 and 73.86%). Digital image analysis demonstrated that heart length, cardiac fat area, gizzard width, and intestine length varied between the groups. Cardiac fat area was largest in Group III (0.86 cm(2)) and smallest in Group V (0.65 cm(2)). Gizzard width was greatest in Group I (2.63 cm) and smallest in Group V (2.47 cm). Intestine length was greatest in Group V (78.45 cm) and smallest in Group IV (72.39 cm). Body weight, shank length, and slaughter and carcass weight do not vary in relation to eggshell colour or the size of the spotted area. The lengths of intestine and heart, gizzard width, and cardiac fat area do vary in relation to eggshell colour or the size of the spotted area.