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Öğe Comparison of litter quality, performance, and some welfare parameters of broilers reared on the sepiolite-supplemented paper waste sludge(SPRINGER HEIDELBERG, 2022) Eser, Handan; Onbaşılar, Esin Ebru; Yalçın, Sakine; Ramay, Muhammad Shazaib; Karakan, Tuğba; Güngör, Ömer FarukWaste management is the protection of the environment and the health of the population. Paper waste sludge is produced during paper production and sepiolite is a natural clay mineral. The aim of the study was to investigate the usability of sepiolite-added paper waste sludge as a bedding material in the broiler production. Two hundred eighty-eight 1-day old male broiler chicks were divided into the 6 bedding material groups (wood shavings (control), paper waste sludge, sepiolite, mix of 25% paper waste sludge and 75% sepiolite, mix of 50% paper waste sludge and 50% sepiolite, and mix of 75% paper waste sludge and 25% sepiolite) with 6 replicate pens per group. Litter quality, performance, and some welfare parameters of broilers were assessed during the 6 weeks' period. Body weight at 42 days of age and body weight gain from 0 to 42 days of broilers reared on the wood shavings and mix of 50% paper waste sludge and 50% sepiolite were found higher than those of the sepiolite and paper waste sludge groups. Feed consumption and feed to gain ratio from 0 to 42 days, yields of carcass and carcass parts, percentages of organs and abdominal fat, IgG, percentage of bursa Fabricius, burns of foot pad and breast, litter pH and meat properties of broilers reared on the wood shavings, paper waste sludge, and sepiolite litter groups were not found to be statistically different. Litter moisture was found higher in the paper waste sludge group than that in the sepiolite group at the 42 days of rearing. As a conclusion, usage of mix of 50% paper waste sludge and 50% sepiolite as a litter does not have any negative effects on performance, welfare, and litter quality. This result is important in terms of utilizing a waste product.Öğe Efects of dietary yeast cell wall supplementation on performance, carcass characteristics, antibody production and histopathological changes in broilers(2014) Yalçın, Sakine; Yalçın, Suzan; Eser, Handan; Şahin, Aydın; Yalçın, S. SongülBu araştırma broyler karma yemlerine maya hücre duvarı ilavesinin büyüme performansı, karkas özellikleri, koyun eritrositine karşı antikor üretimi (SRBC) ve histopatolojik değişiklikler üzerine etkilerini belirlemek amacıyla yapılmıştır. Toplam 272 adet günlük Ross 308 erkek broyler civciv her biri 68 adet içeren bir kontrol ve üç deneme grubuna ayrılmıştır. Bazal karma yeme 0, 1, 2 ve 3 g/kg düzeyinde maya hücre duvarı (InteMos) ilave edilerek deneme karma yemleri oluşturulmuştur. Deneme 6 hafta sürdürülmüştür. Karma yeme maya hücre duvarı ilavesi ilk üç haftada canlı ağırlık kazancını artırmıştır (P<0.001). Denemenin ilk üç haftası (P<0.001) ve deneme süresince (P<0.01) yem dönüşüm oranı maya hücre duvarı ilavesi ile olumlu yönde etkilenmiştir. Yem tüketimi, karkas randımanı ile relatif taşlık, karaciğer ve kalp ağırlıkları bakımından gruplar arasında farklılık gözlenmemiştir. Maya hücre duvarı ilavesi broylerlerde relatif abdominal yağ ağırlığını azaltmış (P<0.05) ve SRBC’ye karşı antikor titresini (P<0.01) artırmıştır. Kontrol ve deneme gruplarında hepatik lobüler infamasyon, yağlanma ve hücre balonlaşma skorları ile kalp yağlanma oranlarını içeren histolojik skorlamalar benzer bulunmuştur. Sonuç olarak, büyüme performansındaki artış, humoral immun cevaptaki artış ve abdominal yağdaki azalmadan dolayı maya hücre duvarı etkili bir yem katkı maddesidir.Öğe Effects of dietary sepiolite on performance, egg quality and some blood parameters in laying hens(Ankara Univ Press, 2016) Yalçın, Sakine; Eser, Handan; Onbaşılar, İlyas; Yalçın, Suzan; Oğuz, Fatma KarakaşThe aim of this study was to determine the effects of dietary sepiolite on performance, egg quality, egg yolk cholesterol content and some blood parameters of laying hens during 22 weeks period. For this purpose a total of 135 Lohmann Brown laying hens, 38 weeks of age, were allocated to one control group and two treatment groups. Sepiolite was used at the level of 0, 0.5 and 1% for the diets of control group and the first and second treatment groups, respectively. Dietary sepiolite supplementation did not significantly affect feed intake, egg production, egg weight and feed conversion ratio. The values of egg breaking strength (p<0.01) and egg shell thickness (p<0.05) were increased, egg yolk cholesterol was decreased (p<0.05) by the usage of 1% sepiolite in the diet. Dietary treatments did not significantly affect egg shape index, egg albumen height, egg albumen index, egg yolk index and egg Haugh unit. Dietary sepiolite at 1% reduced cholesterol and triglyceride in serum (p<0.05) and increased total protein in serum (p<0.01). It was concluded that dietary supplementation of 1% sepiolite was effective feed additive in layer feeding due to the reduction in egg yolk cholesterol and improvement in egg shell quality.Öğe Effects of dietary yeast autolysate (Saccharomyces cerevisiae) on performance, carcass and gut characteristics, blood profile, and antibody production to sheep red blood cells in broilers(Oxford Univ Press, 2013) Yalçın, Sakine; Eser, Handan; Yalçın, Suzan S.; Cengiz, Şeyda; Eltan, ÖnderThis study was conducted to determine the effects of dietary yeast autolysate on performance, carcass and gut traits, blood parameters, and humoral immune response of broilers. A total of 175 day-old Ross 308 male broiler chicks were allocated into one control group and 4 treatment groups each containing 5 replicate groups of 7 chicks. A basal diet was supplemented with 0, 1, 2, 3, and 4 g/kg of yeast autolysate (Saccharomyces cerevisiae, InteWall) to generate dietary treatments. The experimental period lasted 42 d. Supplemental yeast autolysate improved live weight gain (P < 0.01) and feed conversion (P < 0.001) during the starter period (1 to 21 d). Cumulative FCR was decreased (P < 0.05) during the overall period (1 to 42 d) with 2 and 3 g/kg of yeast autolysate supplementation when compared with the control diet. There were no dietary effects on final live weight, feed intake, excreta pH, excreta moisture, carcass yield, and the relative weight of gizzard, liver, heart, spleen, bursa of Fabricius, and the intestinal weights. Yeast autolysate supplementation decreased relative weight of abdominal fat (P < 0.001) and Escherichia coli count of the digesta (P < 0.01) and increased antibody titers to SRBC (P < 0.001). The pH of jejunal and ileal digesta was decreased at the 2, 3, and 4 g/kg of yeast autolysate supplementation compared with that of birds fed the control diet (P < 0.001). Dietary treatments did not significantly affect blood serum levels of cholesterol, triglyceride, protein, uric acid, aspartate amino transferase, and alanine amino transferase. It was concluded that the dietary supplementation at the level of 2 and 3 g/kg of yeast autolysate was an effective feed additive in broiler feeding because of the increased growth performance, increased immunocompetence, and the reduction of E. coli colonization in the intestine.Öğe Effects of dietary yeast cell wall on performance, egg quality and humoral immune response in laying hens(Ankara Univ Press, 2014) Yalçın, Sakine; Yalçın, Suzan; Onbaşılar, İlyas; Eser, Handan; Şahin, AydinThe objective of this study was to determine the effects of dietary yeast cell wall (YCW) on performance, egg quality, some blood parameters and humoral immune response of laying hens during 26 wks period. For this purpose a total of 225 Hyline Brown laying hens, 39 wks of age, were allocated to one control group and four treatment groups. Basal diet was supplemented with YCW derived from bakers yeast Saccharomyces cerevisiae (InteMOS) at the level of 1, 2, 3 and 4 g/kg in the diets of the first, second, third and fourth treatment groups, respectively. Dietary treatments did not significantly affect body weight, feed intake, egg production, egg weight, feed conversion, and egg internal and external quality characteristics. YCW supplementation at the level of 1 and 2 g/kg decreased egg yolk cholesterol level as mg per g yolk (P < 0.05). Blood serum levels of cholesterol and triglyceride were decreased with the dietary inclusion of YCW at the level of 2, 3 and 4 g/kg (P < 0.01). Dietary YCW supplementation increased antibody titres to SRBC (P < 0.01). As a result dietary YCW at the level of 1 and 2 g/kg had beneficial effects in the production of low cholesterol eggs and improvement in humoral immunity response.Öğe Effects of dietary yeast cell wall supplementation on performance, carcass characteristics, antibody production and histopathological changes in broilers(Kafkas Univ, Veteriner Fakultesi Dergisi, 2014) Yalçın, Sakine; Yalçın, Suzan; Eser, Handan; Şahin, Aydın; Yalçın, S. SongülThis study was carried out to determine the effects of dietary yeast cell wall supplementation on growth performance, carcass traits, antibody production to sheep red blood cells (SRBC) and histopathological changes in broilers. A total of 272 Ross 308 male broiler chicks aged one day were allocated into one control group and three treatment groups each containing 68 chicks. A basal diet was supplemented with 0, 1, 2 and 3 g/kg yeast cell wall (InteMos) to obtain dietary treatments. The experimental period lasted 6 weeks. Dietary yeast cell wall increased body weight gain during the first three weeks (P<0.001). Feed conversion during the first three weeks (P<0.001) and during the overall experimental period (P<0.01) were improved with the dietary supplementation of yeast cell wall. No differences were observed in feed intake, carcass yield and the relative weights of gizzard, liver and heart. Yeast cell wall supplementation decreased the relative weight of abdominal fat (P<0.05) and increased antibody titres to SRBC (P<0.01) in broilers. Control and treatment groups had similar histological grade; hepatic lobular inflammation, steatosis and cell ballooning scores and, cardiac steatosis. It is concluded that yeast cell wall was an effective feed additive in broiler feeding due to the increased growth performance, increased humoral immune response and the reduction in abdominal fat.Öğe Effects of dried thyme (Thymus vulgaris L.) leaves on performance, some egg quality traits and immunity in laying hens(Ankara Univ Press, 2020) Yalçın, Sakine; Eser, Handan; Onbaşılar, İlyas; Yalçın, SuzanThe aim of the present study was to investigate the usage of thyme leaves and its effects on performance, some egg quality traits and humoral immunity in laying hens. A total of 108 laying hens aged 36 weeks were randomly assigned to three dietary groups for 16 weeks. Dried and ground (Thymus vulgaris L.) thyme leaves were used at the level of 0, 1 and 2% in the diets of groups. Feed intake, body weight, egg production, egg weight and egg quality characteristics were not affected by dietary thyme supplementation. Thyme supplementation at 2% resulted in beneficial effects in laying hens due to the lowering of yolk cholesterol and total saturated fatty acids concentration while increasing omega-3 fatty acids. Furthermore, the yolk malondialdehyde, blood serum cholesterol and triglycerides levels were reduced and antibody titers against SRBC were increased with 2% thyme supplementation. In conclusion, the results showed the antioxidative and hypolipidemic effects of thyme supplementation in laying hens along with improved humoral immune response without any negative effects on performance and egg quality characteristics.Öğe Effects of grit supplementation to diets containing maize and barley as cereal grains on performance and slaughter characteristics in broilers(2019) Eser, Handan; Yalçın, Sakine; Onbaşılar, İlyas; Burçak, Ender; Yalçın, SuzanThe aim of this study was to determine the effects of grit supplementation to the diets containing maize and barley as cereal grains on performance and slaughter characteristics in broilers. In the experiment, a total of 160 Ross 308 male broiler chicks were allocated to 2 experimental groups with 4 replicate pens containing 20 birds per each for 5 weeks of experimental period. Granite grit was added at the level of 0 and 0.8% to the basal diets containing barley and maize as cereal grains for control and treatment groups, respectively. Granite grit supplementation had no significant effect on final body weight and body weight gain. Feed intake during the experiment was significantly reduced by grit supplementation (P<0.05). However, no significant differences were observed with the feed conversion ratio. Granite grit supplementation to the diets of broilers increased the relative weight of gizzard (P=0.001) and decreased the relative weight of abdominal fat (P<0.05). Dietary treatments did not affect blood serum total cholesterol and triglyceride. In conclusion, granite grit supplementation might be used in broiler nutrition due to having increment in the relative weight of gizzard and reduction in relative weight of abdominal fat.Öğe Effects of sepiolite usage in broiler diets on performance, carcass traits and some blood parameters(2012) Eser, Handan; Yalçın, Sakine; Yalçın, Suzan; Şehu, AdnanBu araştırma broyler karma yemlerinde sepiyolit kullanımının performans, karkas özellikleri ve bazı kan parametreleri üzerine etkilerini belirlemek amacıyla yapılmıştır. Toplam 204 adet günlük Ross 308 dişi broyler civciv her biri 68 adet içeren bir kontrol ve iki deneme grubuna ayrılmıştır. Sepiyolit, kontrol grubu, birinci ve ikinci deneme grupları karma yemlerinde sırasıyla %0, %0.5 ve %1 düzeylerinde kullanılmıştır. Deneme 6 hafta sürdürülmüştür. Sepiyolit ilavesi canlı ağırlık (P<0.01) ve toplam canlı ağırlık kazancını (P<0.05) artırmıştır. Yem tüketimi, yemden yararlanma, karkas randımanı ile taşlık, karaciğer, kalp, dalak ve Bursa Fabricus relatif ağırlıkları bakımından gruplar arasında farklılık gözlenmemiştir. Karma yemde %1 düzeyinde sepiyolit bulunması relatif abdominal yağ ağırlığı, serum kolesterol ve serum trigliserit düzeylerini azaltmıştır. Serum toplam protein düzeyi sepiyolitten etkilenmemiştir. Sonuç olarak, broyler karma yemlerinde %1 düzeyinde sepiyolit bulunması canlı ağırlık kazancını artırmış, relatif abdominal yağ ağırlığı ile serum kolesterol ve trigliserit düzeylerini azaltmıştır.Öğe Effectsofdietary yeast cell wall on performance, egg quality and humoral immune response in laying hens(2014) Yalçin, Sakine; Yalçin, Suzan; Onbaşilar, Ilyas; Eser, Handan; Şahin, AydınBu araştırma, yumurta tavuğu rasyonlarına maya hücre duvarı ilavesinin 26 hafta süreyle performans, yumurta kalitesi, bazı kan parametreleri ve humoral immun yanıt üzerine etkilerini belirlemek amacıyla yapılmıştır. Bu amaçla 39 haftalık 225 adet Hyline kahverengi yumurta tavuğu 1 kontrol ve 4 deneme grubuna ayrılmıştır. Kontrol grubu rasyonuna ekmek mayası Saccharomyces cerevisiae (InteMOS)den elde edilen maya hücre duvarı 1, 2, 3 ve 4 g/kg düzeylerinde ilave edilerek sırasıyla birinci, ikinci, üçüncü ve dördüncü deneme grupları rasyonları oluşturulmuştur. Rasyonlara maya hücre duvarı ilavesi canlı ağırlığı, yem tüketimini, yumurta verimini, yumurta ağırlığını, yemden yararlanmayı ve yumurta iç kalite ile dış kalite özelliklerini etkilememiştir. Maya hücre duvarının 1 ve 2 g/kg düzeylerinde ilavesi ile yumurta kolesterol düzeyi (mg/g yumurta sarısı) azalmıştır (P<0.05). Kan serumu kolesterol ve trigliserit düzeyleri rasyona 2, 3 ve 4 g/kg maya hücre duvarı ilavesi ile azalmıştır (P<0.01). Rasyona maya hücre duvarı ilavesi SRBCye karşı antikor titresini artırmıştır (P<0.01). Sonuç olarak rasyona 1 ve 2 g/kg düzeyinde maya hücre duvarı ilavesi düşük kolesterollü yumurta üretiminde ve humoral immun yanıtın gelişmesinde yararlı olacağı kanısına varılmıştır.
