Yazar "Denli, Muzaffer" seçeneğine göre listele

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    APPLICATION OF PLANT EXTRACTS AS FEED ADDITIVES IN POULTRY NUTRITION
    (Univ Agricultural Sciences & Veterinary Medicine Bucharest, 2016) Akyildiz, Serhat; Denli, Muzaffer
    Various kinds of antibiotics have been used extensively as growth promoters in animal feeds for a large number of years, especially in the fields of poultry production. As a result of the decision to ban of the antibiotics in livestock production researches on plant extracts as alternatives to the use of growth promoters (antibiotics) has significantly increased. Many novel natural candidate replacements including probiotics, prebiotics, organic acids and plant extracts and essential oils have been applied to maintain good production. Recently, herb and plant extracts have been received a great attention to be fed to poultry as feed additives to improve and increase production. The most commonly studied plants to be used in animal nutrition are cinnamon, oregano, cumin, garlic, sumac, cloves, anise, mint, coriander and ginger. Researchers have shown that these extracts are the powerful stimulators of the immune and animal digestive systems as well as highly beneficial effects in poultry nutrition due to their antioxidant, antimicrobial, antiviral, anticoccidial and anthelmintic properties. The aim of this review is to provide an overview of the recent knowledge on the use of plant extracts in poultry feeds as feed additives and their effects on the poultry performance.
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    COMPARATIVE PERFORMANCE AND EGG QUALITY OF LAYING HENS IN ENRICHED CAGES AND FREE-RANGE SYSTEMS
    (Univ Agricultural Sciences & Veterinary Medicine Bucharest, 2016) Denli, Muzaffer; Bukun, Bekir; Tutkun, Muhittin
    Enriched battery cages and free-range as an alternative raising systems are intended to improve welfare of hens. Comparison of the productivity performance and egg quality of laying hens housed in two different systems regarding the welfare of laying hens was the objective of the study. A totally, eight hundred 19-wkold Lohmann Brown hens were housed in enriched cages (n= 400; 16 cages; 25 hens per cage) and in freerange system (n= 400) to 50 wk of age. Hen-day egg production, feed intake, feed efficiency were measured at 30, 40 and 50 wk. In both rearing systems, eggs were recorded for 2-wk intervals between 30 and 50 wk of age to measure egg quality parameters. Hen-egg production was significantly higher in enriched cages than free range system throughout the experiment (P< 0.05). Hens raised in free-range system had greater egg weight, egg shell thickness and dirty eggs than in enriched cages (P< 0.05). In addition, the feed intake and feed efficiency were higher in the free-range raising system than in the enriched cages at 30 wk. However, the heights and width of egg albumen and yolk were not affected by the raising systems (P> 0.05). Based on the results the interior egg quality parameters appear to have similar for hens kept in both rearing systems. However, the higher proportion of dirty eggs for hens raised in free-range system was the greatest problem and still needs to be considered.
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    COMPARE THE PERFORMANCE AND EGG QUALITY OF TWO STRAINS OF LAYING HENS HOUSED IN FURNISHED CAGES
    (Univ Agricultural Sciences & Veterinary Medicine Bucharest, 2018) Denli, Muzaffer; Demirel, Ramazan; Tutkun, Muhittin
    This study was carried out to compare indices of production and egg quality of two strains of laying hens (Lohmann Brown and Atak-S) housed in furnished cages. Lohmann Brown (LB) and Atak-S (AS) hens were housed in furnished cages (n= 700; 14 cages; 25 hens per cage; floor space 600 cm2/hen) from 18 to 50 wk. Furnished cages included nests, perches and sandbathes. The hen day egg production, feed intake and egg weight of LB hens were higher than AS hens at week 40 and 50 (P<0.05). The AS had a significantly higher body weight (2074.1 g and 1900.2 g respectively) and lower mortality rate (7.1% and 12.7 % respectively); than LB hen at week 50 (P<0.05). However, no significant differences on egg quality parameters were noticed between LB and AS hens throughout the experiment (P > 0.05). In conclusion, our results showed that strain selection is important for productivity of laying hens rearing in furnished cages. Furthermore it can be concluded that performance of LB hens was better than AS hens in furnished cages.
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    DETERMINATION OF SILAGE QUALITY CHARACTERISTICS OF FEED PEAS (Pisum sativum supsp arvense L.), TRITICALE AND MIXTURES GROWN IN DIYARBAKIR CONDITIONS
    (Bilal GÜMÜŞ, 2018) Denli, Muzaffer; Gelir, Gökhan
    This research was aimed to determine the quality characteristics of the silages obtained from the feed peas (Pisum sativumsupsp arvense L.), triticale and their mixtures grown in Diyarbakır provinces. In this study, experimental groups were composed of 5 groups consisting of 3 repeats, triticale and mixtures of different levels which are; 1) Feed peas, 2) Triticale, 3) 50% Feed peas + 50% Triticale, 4) 25% Feed peas + 75% and 5) 75% Feed peas + 25% Triticale. The samples were analyzed after 60 days of incubation in 2 kg plastic drums. In chemical analyzes; the highest pH value (4.15) was obtained from the triticale silage, while the lowest pH value (4.08) was obtained from the feed beetle silage (P <0.05). Similarly, lactic acid concentration was the highest (2.19%) in the silage, while the lowest level (1.96%) was found in the feed beetle silage (P <0.05). As a result; Increase of peas ratio in silanized material in Diyarbakir conditions increased the ratio of CP, ADF, NDF, propionic acid and acetic acid, which is a desirable feature in a quality silage, but decreased lactic acid ratio. In addition, it was determined that mixture of triticale and forage pea plants with 25% of feed peas + 75% triticale is the most ideal mixture in terms of silage quality in the areas having the ecological conditions of Diyarbakır province.
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    Dietary encapsulated fennel seed (Foeniculum vulgare Mill.) essential oil supplementation improves performance, modifies the intestinal microflora, morphology, and transcriptome profile of broiler chickens
    (Oxford Univ Press Inc, 2024) İpçak, Hasan Hüseyin; Alçiçek, Ahmet; Denli, Muzaffer
    Global antimicrobial resistance has led to a ban on the use of antibiotics as growth promoters (AGPs) in poultry farming, encouraging the use of natural phytogenic feed additives that provide similar effects to AGPs without causing resistance. The aim of this study was to determine the effects of the addition of encapsulated fennel seed (Foeniculum vulgare Mill.) essential oil (FEO) into the diets on the performance, intestinal microflora, morphology, and transcriptomic profiling of broiler chickens. In the study, 400 one-d-old male chicks of the Ross-308 genotype were randomly distributed into five groups, each with 16 replicates of five birds. The experiment included a control group fed on basal diets without the addition of FEO and treatment groups supplemented with 50 (FEO50), 100 (FEO100), 200 (FEO200), or 400 (FEO400) mg of encapsulated FEO/kg. Body weight and the European Production Efficiency Factor values were higher in the FEO100, FEO200, and FEO400 groups (P < 0.05). The feed conversion ratio significantly improved at all FEO levels (P < 0.05). FEO supplementation improved duodenum, jejunum, and ileum morphologies. It enhanced mucosal layer thickness in the duodenum and jejunum, and muscular layer thickness in the jejunum and ileum (P < 0.05). It also increased the number of Lactobacillus spp. in the jejunum and ileum (P < 0.05). According to the transcriptome profile obtained from the microarray analysis of samples taken from small intestine tissues, the mRNA expression levels of 261 genes in the FEO50 group (206 upregulated and 55 downregulated), 302 genes in the FEO100 group (218 upregulated and 84 downregulated), 292 genes in the FEO200 group (231 upregulated and 61 downregulated), and 348 genes in the FEO400 group (268 upregulated and 80 downregulated) changed compared to the control group. Most upregulated genes were associated with catalytic activity, binding, transcription regulators and transcription factors, anatomical structure and cellular development, and protein binding activity modulators. The downregulated genes mostly belonged to the transporter, carrier, and protein-modifying enzyme classes. Besides, the anti-inflammatory IL-10 gene (4.41-fold) increased significantly in the FEO100 group compared to the control group (P < 0.05). In conclusion, FEO improved the performance of broiler chickens by regulating biological processes such as performance and intestinal health, with the 100 mg FEO/kg supplementation being the most prominent.
  • Küçük Resim
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    Diyarbakır ili hayvansal üretime dayalı gıda sanayisinin durumu
    (Iğdır Üniversitesi, 2016) Denli, Muzaffer; Demirel, Ramazan; Sessiz, Abdullah
    Bu çalışma Diyarbakır ili hayvansal gıda (et, süt ve yumurta) işleme tesislerinin mevcut durumu, ham madde temini, üretim, kalite, teknik altyapı, kapasite kullanım durumu ve pazarlama koşulları ile kamu otoritesinden beklentileri ortaya koymak amacıyla yürütülmüştür. Bu araştırma kapsamında, Diyarbakır 'da bulunan toplam 16 gıda ürünleri imalat ve işleme tesisi ziyaret edilerek, işletme sahipleri veya sorumlu yöneticileri ile yüz yüze görüşmeler gerçekleştirilmiştir. Toplam 34 sorudan oluşan anket soruları işletmelerdeki yetkililere yöneltilmiş ve elde edilen veriler kayıt altına alınarak değerlendirilmiştir. Araştırmada; Diyarbakır'da hayvansal gıdalarla ilgili tesislerden 8'inin süt ve süt ürünleri işleme, 7'sinin yumurta paketleme tesisi ve birinin et ve et ürünleri işleme tesisi olduğu saptanmıştır. Bu mevcut tesislerde toplam 115 kişinin istihdam edildiği belirlenmiştir. Tesislerin kapasite kullanım oranları (KKO) yoğurtta %16.6, ayranda %49.1, peynirde %11.7, tereyağında %25 ve yumurta paketlemede %46.1 seviyesinde oldukça düşük olduğu tespit edilmiştir. Haksız rekabet sorununun işletmelerin %85.7'si için en önemli sorun olduğu, %14.3'ü için ise bunun ikinci sırada önem arz ettiği saptanmıştır. Sonuç olarak, Diyarbakır'da hayvansal ürün işleyen tesislerin düşük kapasiteyle çalıştıkları ve firmalar arası haksız rekabetin, bu sonucun ortaya çıkmasında etkili olduğu belirlenmiştir.
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    Diyarbakır İli Karma Yem Endüstrisinin Durumu
    (2015) Demirel, Ramazan; Sessiz, Abdullah; Denli, Muzaffer
    Bu çalışma, Diyarbakır ilinde bulunan toplam 14 yem fabrikası ziyaret edilerek, ham madde temini, üretim, kalite, teknik altyapı, kapasite kullanım durumu, pazarlama koşulları ve mevcut sorunların tespit edilerek çözüm önerilerinin sunulması ile kamu otoritesinden beklentilerini ortaya koymak amacıyla yürütülmüştür. İşletme sahipleriyle yapılan yüz yüze görüşmelerde, toplam 34 sorudan oluşan anket yapılmış ve elde edilen verilen kayıt altına alınarak daha sonra değerlendirilmiştir. Araştırma sonucunda, Diyarbakırdaki yem fabrikalarının kurulu yem üretim kapasitelerinin 388.800 Ton/yıl, faal durumdaki yem fabrikalarının ise 230.400 ton/yıl düzeyinde olduğu belirlenmiştir. Faal durumdaki yem fabrikalarının kapasite kullanım oranları (KKO) %50,3, ortalama yem üretim kapasiteleri 11,9 Ton/saat ve günlük yem üretim miktarının 403 ton olduğu tespit edilmiştir. Yem fabrikalarının %85,7si yetiştiricinin bilinçsiz olmasını, %75i yem hammadde fiyatlarının yüksek olmasını ve %62,5si haksız rekabet ve kayıt dışı üretimin kendileri için önemli sorun teşkil ettiğini belirtmişlerdir. Tahıl, kepek ve pamuk tohumu küspelerinin bölgeden temin edildiği, diğer yem ham maddeleri ve yem katkı maddelerinin ise bölge dışından sağlandığı belirlenmiştir. Yem fabrikalarının yem hammaddesi teminindeki önceliklerinin sırasıyla %50 kalite, %31 kolay ulaşılabilirliği ve %19unun da ucuzluğu olduğu saptanmıştır. Yemlerin sırasıyla %34ü bayiler aracılığıyla, %33ünün bayi ve fabrikada perakende, %22sinin doğrudan üreticiye ve kalan %11inin ise diğer yöntemlerle pazara sunulduğu tespit edilmiştir. Sonuç olarak yem fabrikalarının teknik donanımlarının yeterli olduğu, laboratuvar altyapılarının bulunmadığı ve laboratuvar kurma isteklerinin bulunduğu, kurulu kapasitelerinin yeterli olduğu fakat bir tanesi hariç, diğerlerinin tek vardiya üretim yaptıkları tespit edilmiştir.
  • Küçük Resim
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    Diyarbakır ili süt sığırcılığı işletmelerindeki besleme uygulamaları
    (Ege Zootekni Derneği, 2014) Denli, Muzaffer; Tutkun, Muhittin; Sessiz, Abdullah
    Bu çalışmada, Diyarbakır ili ve ilçelerinde süt sığırı işletmelerindeki hayvan besleme ve yem kaynaklarının kullanımı ile ilgili uygulamaların ortaya konulması amaçlanmıştır. Çalışma kapsamında, Diyarbakır merkez ilçeler dâhil olmak üzere toplam 17 ilçede bulunan 25 baş ve üzeri toplam 192 adet sığırcılık işletmesi ziyaret edilerek, işletme sahipleriyle yüz yüze görüşmeler yapılmıştır. Hazırlanan anket sorularına işletme sahiplerinin vermiş olduğu cevaplar doğrultusunda işletmelerin % 27’sinin yem temininde sorun yaşadıkları gözlenmiştir. İşletmelerin % 65’inin kaba ve % 87’inin ise kesif yemini dışarıdan satın alarak temin ettikleri saptanmıştır. Ayrıca işletmelerin sadece % 10'nun yem bitkisi yetiştirdiği belirlenmiştir. İşletmelerde kaba yem kaynağı olarak sırasıyla saman, kalitesiz kuru ot, silaj ve diğer yemlerin sırasıyla % 71, % 16, % 13 ve % 1 düzeyinde kullanıldığı saptanmıştır. Rasyon hazırlama teknikleri, beslenmeye bağlı hastalıklar ve yem kalitesi konularında çiftlik sahiplerinin büyük bir bölümünün (sırasıyla % 85, % 81 ve % 77) yeterli bilgiye sahip olmadığı tespit edilmiştir. Ayrıca üreticilerin % 56’sının hayvanları beslerken gruplandırma (süt verimi, laktasyon dönemi ve yaş) yapmadığı görülmüştür. Sonuç olarak işletme sahiplerinin yem üretimi ve kullanımı hakkında yetersiz bilgiye sahip oldukları tespit edilmiştir. Hayvan besleme uygulamalarındaki ciddi hatalar ile bilinçsiz besleme uygulamalarının sonucunda işletmelerde ciddi düzeyde verim kayıplarının meydana geldiği saptanmıştır.
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    Diyarbakır İli Süt Sığırcılığı İşletmelerinin Yapısal Durum Analizi
    (2017) Sessiz, Abdullah; Denli, Muzaffer; Tutkun, Muhittin
    Bu araştırma, Diyarbakır ilinde faaliyet gösteren süt sığırcılığı işletmelerinin yapısalözelliklerinden, işletme bilgileri, bakım ve yetiştiricilik uygulamaları, üretim değerleri ilesüt ve süt ürünlerinin pazarlanması durumlarını tespit etmek amacıyla yapılmıştır.Araştırma kapsamında, Diyarbakır merkez ilçeler dâhil olmak üzere toplam 17 ilçedebulunan 25 baş ve üzeri toplam 192 adet sığırcılık işletmesi ziyaret edilerek, işletmesahipleriyle yüz yüze görüşmeler yapılmıştır. Elde edilen sonuçlarına göre, yöredekiişletmelerin %90'ı aile işletmesi, %7'si kooperatif ve %3'ü ise büyük kapasitedekimodern oluşmaktadır. Mevcut sığır ırklarının %63'ü kültür ırkı, %25'ni kültür ırkımelezleri ve %12'si ise yerli ırklardan oluşmaktadır. İl genelinde işletmelerdeki hayvanvarlığını %59,7'sini inek, %11,8'si düve, %17,9'unu buzağı, % 8,2'sini dana ve %2,4'ünüboğa oluşturmaktadır. İşletme başına ortalama büyükbaş hayvan sayısı 46,7 baş veortalama sağmal inek sayısı ise 27,8 baş olarak hesaplanmıştır. Barınakların %3'ü açık,%8'i yarı-açık ve %89'u ise kapalı ahır olduğu tespit edilmiştir. İşletmelerin %56'sınınarazi varlığı 50 dekarın altında bulunmuştur. İşletmelerin %92'sinin sığırcılıktan eldeettikleri gelirlerin yetersiz olduğunu, %86'sı ise sığırcılık yapmaktan memnunolmadıklarını beyan etmişlerdir. İşletmelerin sadece %23'ünün suni tohumlama yaptığıtespit edilmiştir. İşletmelerin %71'inde elle ve %29'unda makine ile sağım yapıldığı veüretilen sütün sadece %6'sının süt fabrikasına satıldığı saptanmıştır. Bu araştırmaDiyarbakır ili merkez ilçeye bağlı köy ve beldelerdeki sığır işletmeleri hakkında önemlibir veri tabanı oluşturması açısından önemli bir çalışmadır.
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    Diyarbakır ili sığır besiciliği işletmelerindeki yem kullanımı ve besleme uygulamaları
    (Yüzüncü Yıl Üniversitesi Ziraat Fakültesi, 2016) Denli, Muzaffer; Demirel, Ramazan
    Bu araştırma; Diyarbakır ili merkez ilçelerinde faaliyet gösteren sığır besiciliği işletmelerindeki hayvan besleme uygulamaları ve kullanılan yem kaynaklarının çeşitleri ile kalitelerinin belirlenmesi amacıyla yürütülmüştür. Araştırmada; Diyarbakır ili merkez Bağlar, Sur ve Yenişehir ilçelerinde sığır besiciliği yapan 60 adet işletme ziyaret edilerek, işletme sahipleriyle yüz yüze görüşmeler gerçekleştirilmiş, işletmelerde kullanılan yem kaynaklarından örnekler alınarak laboratuvarda besin madde analizleri gerçekleştirilmiştir. Yöneltilen anket sorularına işletme sahiplerinin vermiş olduğu cevaplar doğrultusunda işletmelerin % 91’inin karma yemi ve % 88’inin de kaba yemi dışarıdan satın almak yoluyla temin ettikleri saptanmıştır. İşletmelerde kaba yem kaynağı olarak % 90 buğday samanı, % 6 mısır silajı ve % 4 kuru ot kullanıldığı tespit edilmiştir. Ayrıca işletmelerin % 88’inin karma yem olarak satın alınan besi yemi ve arpa kırmasını belirli oranlarda karıştırarak kullandıkları tespit edilmiştir. Araştırma sonunda Diyarbakır ili merkez ilçelerinde bulunan sığır besiciliği işletmelerinde kullanılan kaba yem kaynaklarının büyük ölçüde kalitesiz olduğu ve uygulanan pratik rasyon uygulamalarının hayvanların besin madde gereksinimlerini karşılamaktan çok uzak olduğu tespit edilmiştir.
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    The effect of ?-carotene and vitamin E on metabolic profiles in nutritionally flushed sheep
    (South African Journal for Animal Sciences, 2022) Irmak, Mehmet; Kayri, Veysi; Tufan, Tuncay; Coşkun, Devran; Özcan, Cahit; Çelik, Özgür Yaşar; Denli, Muzaffer
    This study aimed to investigate the effects of β-carotene and vitamin E on serum biochemistry, body condition score, and the number of offspring in sheep during the flushing period. To this purpose, forty Romanov sheep 45 (±1 kg) body weight and 3 years of age were allocated into one of four experimental treatments with 10 replicates for 6 weeks: the control (only flushing), and three treatment groups injected intramuscularly with 1, 2, and 4 ml β-carotene + vitamin E in the third week of flushing, respectively. The 4-ml treatment of β-carotene + vitamin E evidently increased the follicle-stimulating hormone level. The 2-ml treatment of β-carotene + vitamin E increased the triglyceride concentration in the serum. Body condition score, offspring number, and biochemical parameters (cholesterol, phosphorus, calcium, magnesium, aspartate aminotransferase, beta hydroxyl butyric acid, total protein, and glucose) were not affected by any levels of β-carotene + vitamin E administration. These findings indicate the positive role of β-carotene + vitamin E administration on pregnancy rate and some blood parameters during flushing.
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    EFFECT OF DIETARY SUPPLEMENTATION OF BLACK CUMIN (Nigella Sativa L.) ANDCINNAMON (Cinnamomum Zeylanicum L.) ESSENTIAL OILS ON PERFORMANCE ANDEGG QUALITY OF LAYING HENS
    (2021) Denli, Muzaffer; Yalçın, Samet
    In this study, we aimed to determine the effects of dietary supplementation of black cumin (Nigella sativa L.) (BCEO) and cinnamon (Cinnamomum zeylanicum L.) essential oils (CEO) on yield performance, egg quality, and eggshell bacterial contamination of laying hens. A total of 315 Atak-S, 28-weeks-old of age were randomly assigned to three groups with 5 replicates of 21 hens each and feddiets supplemented with 0.5 ml/kg feed black cumin and cinnamon essential oil respectively for 11 weeks. During the experiment performance parameters, egg external and internal quality characteristics, and eggshell bacterial microbial contamination were measured weekly. At the end of the all experimental trial, CEO addition improved feed conversion rate and increased eggshell thickness (P<0.05). Dietary BCEO reduced eggshell Escherichia coli contamination (P<0.05). However, there was no significant statistical difference between the experimental groups in terms of feed intake, egg production, egg weight, and other egg quality characteristics (P>0.05). In conclusion, we found that the addition of CEO may improve the performance of laying hens while the addition of BCEO may reduce the eggshell escherichia coli bacteria contamination.
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    Effect of dietary zearalenone on the performance, reproduction tract and serum biochemistry in young rats
    (Taylor & Francis Ltd, 2017) Denli, Muzaffer; Carlos Blandon, Juan; Salado, Silvia; Elena Guynot, Maria; Francisco Perez, Jose
    The present study was conducted to determine the toxic dose response of a chronic dietary Zearalenone (ZEA) in weaned young rats. Sixty, 21-day-old, Sprague Dawley female rats were randomly allocated to five groups of four replicate cages containing three rats. Rats were fed diets with increasing amounts of ZEA (0, 0.5, 0.9, 1.8 and 3.6 mg/kg) for 4 weeks. Daily feed intake was reduced (P < .05) by feeding the ZEA diets with 0.9 and 3.6 mg ZEA/kg feed. Rats fed the diet containing 1.8 mg ZEA/kg increased (P < .05) the body weight gain (BWG) and reduced (P < .05) feed conversion rate (FCR) as compared to the control group. The two highest levels of dietary ZEA also increased (P < .05) the weight of the uterus. However, ovaries' weight, timing of vaginal opening and the inter-oestrous interval were not affected by increasing the doses of dietary ZEA (P > .05). Similarly, serum concentrations of total protein, follicle-stimulating hormone and alanine aminotransferase, aspartate aminotransferase and alkaline phosphate activities were not altered by the ZEA treatments. In conclusion, our results indicated that a chronic dietary consumption of ZEA at concentrations of 1.8 mg ZEA/kg increases the BWG and the uterus weight of weaning female rats.
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    EFFECTS OF DIETARY ADDITION OF CHLOROGENIC SUBSTANCES ON GROWTH PERFORMANCE, INTESTINAL MICROFLORA POPULATION AND SERUM BIOCHEMISTRY IN BROILERS
    (Univ Agricultural Sciences & Veterinary Medicine Bucharest, 2016) Denli, Muzaffer; Akyildiz, Serhat; Alp, Simten Yesilmen; Cardozo, Paul W.
    The aim of this study was to evaluate dietary effects of chlorogenic substances (Igusafe) on growth performance, intestinal microflora population and serum biochemistry in broilers. A total of 144 Ross 308 one-day-old male broiler chicks were randomly allocated to 3 treatment groups consisting of 8 replications of 6 chicks per pen for 42 days. There treatments were used: chicks were fed by basal diet as control group, basal diet plus 80 mg Igusafe/kg diet, and basal diet and 160 mg Igusafe/kg diet. Results showed that the addition of 80 mg Igusafe to the diet resulted in significantly higher body weight gains and lower aspartate amino transferase (AST) and serum total protein (TP) concentrations compared with control group (P < 0.05). Intestinal tract weight was also significantly higher in the group fed 160 mg Igusafe/kg diet (P < 0.05). Supplementing both levels of Igusafe significantly reduced Escherichia coli count (P < 0.05). There were no treatments effects on carcass yield, liver weight and Lactic acid bacteria population (P > 0.05). In conclusion, our results indicated that supplementation of Igusafe may be useful as enhancer of growth performance by reducing Escherichia coli count with a positive trend to decrease the broilers mortality.
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    EFFECTS OF DIETARY OREGANO ESSENTIAL OIL ON PERFORMANCE, EGG QUALITY AND EGG SHELL BACTERIAL CONTAMINATION IN LAYING HENS HOUSED IN FREE-RANGE
    (Univ Agricultural Sciences & Veterinary Medicine Bucharest, 2019) Denli, Muzaffer; Yesilmen Alp, Simten; Vural, Aydin
    This study was conducted to determine the effects of dietary oregano essential oils (OEO) on performance, egg quality and eggshell bacterial contamination in laying hens housed in free-range system. A totally of 300, 31 weeks of age laying hens (Atak-S) were allocated into two groups: negative control (NC; basal diet) and oregano essential oils (basal diets plus 150 mg/kg oregano essential oils) for 6 months. Totally 30 eggs were collected from each trial group on the last day of each week to determine the egg quality characteristics during the experiment. The highest egg weight and lowest feed conversion ratio were measured in OEO group compared to control (P<0.05). OEO significantly (P<0.05) reduced the number of eggshell contaminated with the contamination of Enterobacteria, Coliform and Escherichia coli. However, no significant differences on egg quality parameters were noticed between OEO and control groups throughout the experiment (P>0.05). In conclusion, the supplementation of OEO to diet may reduce the total bacteria contamination on the egg shell surface obtained laying hens housed in free range systems.
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    Effects of dried tomato, apple and grape pulps on the performance, and egg quality of laying hens
    (Turkish Science and Technology Publishing, 2023) Akyol, Güneycan; Denli, Muzaffer
    The purpose of this study was to determine the dietary effects of fruit pulps (dried tomato, apple and grape) on the performance and egg quality characteristics of laying hens. In this trial, 196 Lohmann sandy layers 25 weeks of age were distributed into four groups with seven replicates for 9 weeks. Trial groups fed following diets, control group basal diet (no additive), 4 % dried tomato pulp, 4% apple pulp and 2.5% grape pulp. Feed conversion rate was not affected by any addition of fruit pulps throughout the trial. The dietary inclusion of dried tomato pulp increased feed consumption, egg weight and egg production and decreased egg yolk malondialdehyde (MDA) levels on day of 1 compared to the control. Egg yolk MDA level was decreased with the addition of 4% tomato and apple pulp to the diet, but increased with the addition of 2.5% grape pulp to the diet on the day of 28. Moreover, the addition of dried tomato pulp to the basal diet significantly increased egg weight and egg yolk yellow color (a). As a result, this study provides evidence that adding up to 4% tomato pulp to diets may be used without adverse effects on laying hens’ productivity and may improve egg quality characteristics by decreasing MDA levels in the yolk.
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    Effects of multi-enzymes supplementation to wheat and soybean meal-based feeds on growth performance, digestibility and carcass characteristics of quails
    (Urmia University - Faculty of Veterinary Medicine, 2024) Irmak, Mehmet; Denli, Muzaffer; Kayri, Veysi; Coşkun, İsa
    Japanese quail (Coturnix coturnix japonica) is a popular experimental animal model in scientific research. The present study investigated the effects of dietary multiple enzyme supplementation on growth performance, carcass characteristics, nutrient digestibility and small intestinal histomorphology in quails fed diets based on wheat and soya bean meal. A total number of 192 1-day-old quails were assigned to three treatments with 16 replicates in each and four quails per replicate for 38 days. The control group received a basal diet, and the treatment groups received a basal diet with 0.10 or 0.20% multi-enzyme, respectively. Growth performance parameters, carcass characteristics, nutrient digestibility and small intestinal histomorphology in quails were evaluated. Dietary supplementation of multi-enzymes to diet significantly increased body weight gain and improved the feed conversion rate. Moreover, quails fed with 0.10 or 0.20% multi-enzymes showed better ash digestibility coefficients and apparent metabolizable energy coefficients than the control quails. Furthermore, quails fed on a diet containing 0.20% multi-enzyme had the highest crude fiber digestibility. The villi length and the villi length/crypt depth ratio of the duodenum were significantly increased and the crypt depth was decreased in quails-fed diets supplemented with both multi-enzyme levels. However, feed consumption, carcass yield, carcass weight, heart weight, gizzard weight, liver weight and total intestine weights were not affected by treatments. In conclusion, our results showed that dietary supplementation of multi-enzymes to a wheat and soybean meal-based diet enhanced the growth performance and nutrient digestibility of quails.
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    EFFECTS OF SUMAC POWDER (Rhus coriaria L.) ON GROWTH PERFORMANCE, SERUM BIOCHEMISTRY AND INTESTINAL MICROBIOATA IN BROILERS AT DIFFERENT STOCKING DENSITIES
    (Univ Agricultural Sciences & Veterinary Medicine Bucharest, 2017) Cakmak, Mehmetcan; Ozcan, Nida; Denli, Muzaffer
    This study aimed to evaluate the effects of dietary supplementation of sumac powder (Rhus coriaria) on growth performance, serum biochemistry and intestinal microbiota in broilers reared at different stocking densities. A total of 378 one-day-old Ross 308 male broiler chicks were subjected to a 2 stocking densities (10 and 20 chicks/m(2) floor area; normal and high stocking density) x 3 sumac powder levels (0.0, 0.75 and 1.5 g/kg feed) factorial arrangement of treatments. Body weight and feed intake were significantly lower in chickens reared at high stocking density than normal stocking density groups (P<0.05). Moreover, feed conversion rate was negatively affected by high stocking density (P<0.05). Dietary addition of sumac powder had no effect on these variables in both stocking densities (P>0.05). Both stocking densities and the supplementation of sumac powder to the feeds had a reducing effect on intestinal weight (P<0.05). Serum total protein concentration of chickens reared at high stocking density was higher than those of the control normal groups (P<0.05). There was interaction between stocking density and dietary sumac powder supplementation for only body weight and abdominal fat pad variables at the end of the study (P<0.05). However, no differences were observed for the relative weight of liver, spleen, gizzard and proventriculus (P>0.05). In addition, alkaline phosphatase (ALP), aspartate amino transferase (AST) activities and high density lipoprotein (HDL), cholesterol and triglyceride concentration in the serum were not influenced by the any stocking density and sumac powder supplementation (P>0.05). In conclusion, our results showed that broilers exhibited low performance when reared at high stocking density and dietary supplementation of sumac powder has not prevented this decline.
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    Efficacy of AdiDetoxTM in reducing the toxicity of fumonisin B1 in rats
    (Pergamon-Elsevier Science Ltd, 2015) Denli, Muzaffer; Blandon, Juan C.; Salado, Silvia; Guynot, Maria E.; Casas, Josefina; Perez, Jose F.
    The objective of this study is to evaluate the efficacy of a new mycotoxin inactivator (AdiDetox(TM)) in reducing the toxic effects of fumonisin B-1(FB1) in the diet of rats. Sixty-four male Sprague-Dawley growing rats (125 g +/- 1 g BW) were assigned to eight dietary treatments for seven days. The experiment had a 2 x 4 factorial arrangement with two levels of FB1 (0 mg and 15 mg of FB1,/kg feed) and four levels of AdiDetox(TM) (0 g, 1 g, 2 g and 5 g /kg feed) in the diet No significant differences were observed in the growth performance among treatments (P > 0.05), though low levels of sphingosine (So) and sphinganine (Sa) were detected in the liver. However, So and Sa and the Sa/So ratio in kidneys were higher in rats receiving the FRI diets (P <0.0001) than in those fed the Control diet. Supplementation of AdiDetox(TM) to the diet significantly reduced the toxic effects of FB1, leading to a significant decrease in the Sa content and in the Sa/So ratio in kidneys. In conclusion, the results suggest that AdiDetox(TM) can effectively reduce toxicity of FB1 in growing rats. (C) 2015 Elsevier Ltd. All rights reserved.
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    EFFICACY OF HERBAL EXTRACTS ON GROWTH PERFORMANCE, SERUM BIOCHEMISTRY AND INTESTINAL SELECTED BACTERIAL POPULATION IN BROILERS
    (Univ Agricultural Sciences & Veterinary Medicine Bucharest, 2017) Akyildiz, Serhat; Ozcan, Nida; Denli, Muzaffer
    This study was conducted to evaluate the effects of two herbal extracts (Emerald and Gundelia tournefortii L. Seed) on growth performance, serum biochemistry and intestinal bacterial population in broilers. A total of 280 Ross 308 1-day-old male broiler chicks were distributed into 5 groups of 7 in each consisting 8 replicates per treatment for 42 days. Five treatments were used; control group received basal diet (without any herbal extract supplementation), the Emerald at 100 mg/kg diet and G. tournefortii L. seed extracts (GTE) at 2, 4 and 8 g/kg diet were added to basal diet. The addition of 4 and 8 g GTE to the diet resulted in significantly higher body weight compared with control group (P<0.05). Moreover, supplementing the highest level of GTE (8 g/kg diet) significantly increased intestinal lactic acid bacteria counts (P<0.05). However, no differences were observed among treatments for feed intake and feed conversion rate at the end of the study (P>0.05). In addition, serum uric acid (UA) and glucose (Glu) concentrations and aspartate amino transferase (AST) and alkaline phosphatase (ALP) activities were not affected by any treatment (P>0.05). In conclusion, our results showed that different dietary levels of GTE may improve the growth performance by increasing intestinal lactic acid bacteria counts.