Energy, known as the most expensive nutrient in broiler feed, is what strongly adjusts and affects the growth of broilers. Creatine has a key role in cellular energy metabolism and could be synthesised from guanidinoacetic acid (GAA)... more
Energy, known as the most expensive nutrient in broiler feed, is what strongly adjusts and affects the growth of broilers. Creatine has a key role in cellular energy metabolism and could be synthesised from guanidinoacetic acid (GAA) in the liver; however, its de novo synthesis is not able to adequately fulfil the demand of energy metabolism, especially in fast-growing modern broilers. So the aim of the study was to evaluate the efficiency of commercial GAA in energy-reduced broiler diets on performance and intestinal development. Overall, 11 400 day-old Ross 308 chicks were randomly allocated to six dietary treatments with ten replicates in each. Dietary treatments were designed as a 3 × 2 factorial arrangement with three levels of dietary metabolisable energy (AMEn) recommended by Aviagen for Ross 308 broilers (12.55 MJ/kg, 12.97 MJ/kg and 13.38 MJ/kg for starter, grower and finisher, respectively), 0.209 MJ/kg and 0.418 MJ/kg reduced and two levels of GAA (0.00% and 0.06%). Ther...
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Bu çalışmada yumurta tavuğu yemlerinde 0, 10, 100 kGy düzeyinde gama ışınlanmış arpa ve buğday kullanılması ile enzim ilavesinin bağırsak viskozitesi, incebağırsak mikro florası ve yumurtada radyoaktif kontaminasyon riski üzerine olan... more
Bu çalışmada yumurta tavuğu yemlerinde 0, 10, 100 kGy düzeyinde gama ışınlanmış arpa ve buğday kullanılması ile enzim ilavesinin bağırsak viskozitesi, incebağırsak mikro florası ve yumurtada radyoaktif kontaminasyon riski üzerine olan etkileri incelenmiştir. Çalışma 36 haftalık yaşta 324 adet Brown Nick kahverengi yumurtacı tavuk kullanılarak 10 hafta sürdürülmüştür. Deneme 6 tekerrürlü olarak her bir alt grupta 6 adet tavuk olmak üzere 9 grupta tesadüf blokları deneme düzeninde yürütülmüştür. Bağırsak viskozitesi üzerine arpa ağırlıklı yemlerde enzim ya da gama ışını uygulamasının etkisi görülmezken, buğday ağırlıklı yemlerde viskozitenin önemli ölçüde azaldığı tespit edilmiştir. Özellikle buğdayın 100 kGy dozunda gama ışınlanması viskoziteyi önemli ölçüde düşürmüştür(P<0.05). İnce bağırsak mikro florasına gama ışınlama uygulamasının ve enzim uygulamasının önemli bir etkisinin olmadığı bulunmuştur. Ayrıca arpa ve buğdayın 10 ve100 kGy düzeyinde gama ışınlanmasının yem ve yumurta...
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The aim of the present study was to investigate the effect of digestible amino acid (DAA) based formulation strategy, and l-valine (l-Val), l-isoleucine (l-Ile) and l-arginine (l-Arg) supplementation to reduce the crude protein (CP) level... more
The aim of the present study was to investigate the effect of digestible amino acid (DAA) based formulation strategy, and l-valine (l-Val), l-isoleucine (l-Ile) and l-arginine (l-Arg) supplementation to reduce the crude protein (CP) level of broiler diets on performance, carcass characteristics and protein efficiency ratio by comparing with the control diet formulated on total amino acid base. A total of 792 one-day-old Ross 308 broiler chicks were divided into 48 floor pens, with 24 pens containing 16 chicks and 24 pens containing 17 chicks. The experiment was organized in a completely randomized block design with four dietary treatments as follows; T1: formulated to meet minimum both total amino acid and DAA requirements without using l-Val, l-Ile, and l-Arg, T2: formulated to meet DAA requirements without using l-Val, l-Ile and l-Arg, T3: formulated to meet DAA requirements by using l-Val alone, T4: formulated to meet DAA requirements by using l-Val, l-Arg, and l-Ile. Each treatm...
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Yumurta tavugu yemlerinde aycicek yagi yerine aycicek asit yagi kullaniminin verim kriterleri ve yumurta kalitesi uzerine etkilerini saptamak amaciyla yurutulen bu calisma, 52 haftalik yasta 270 adet ATE-K kahverengi yumurta tavugu ile,... more
Yumurta tavugu yemlerinde aycicek yagi yerine aycicek asit yagi kullaniminin verim kriterleri ve yumurta kalitesi uzerine etkilerini saptamak amaciyla yurutulen bu calisma, 52 haftalik yasta 270 adet ATE-K kahverengi yumurta tavugu ile, 11 hafta surdurulmustur. Tavuklar, her biri 9 tavuk iceren, 6 tekerrurlu 5 gruba tesadufi olarak dagitilmislardir. Arastirmada, kontrol yeminde % 4 duzeyinde yer alan aycicek yaginin, sirasiyla, % 25, 50, 75 ve 100’u duzeylerinde aycicek asit yagi ikame edilmesiyle olusturulan rasyonlar karsilastirilmistir. Tum rasyonlar 2752 kcal/kg ME ve %16 ham protein icerecek sekilde, izokalorik ve izonitrojenik olarak hazirlanmistir. Aycicek yagi yerine % 25 ve daha yuksek duzeylerde aycicek asit yagi ikamesi yumurta verimi ve gunluk yumurta uretim miktarini onemli duzeyde arttirmistir. Yumurta agirligi, yem tuketimi, yemden yararlanma ve canli agirlik degisimi, muamelelerden onemli duzeyde etkilenmemistir. Yumurta kirilma mukavemeti, kabuk orani ve Haugh birim...
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In this study, the effect of using gamma irradiated barley and wheat (0, 10 and 100 kGy) and enzyme supplementation on the intestinal viscosity, micro flora and radioactive contamination of eggs was examined. In this experiment 36 weeks... more
In this study, the effect of using gamma irradiated barley and wheat (0, 10 and 100 kGy) and enzyme supplementation on the intestinal viscosity, micro flora and radioactive contamination of eggs was examined. In this experiment 36 weeks old, 324 Brown Nick laying hens were used for ten weeks. The study was a randomized complete block design with 9 dietary treatments within 6 blocks of 54 pens each 6 birds per pen. Intestinal micro flora was unaffected by the treatments. Intestinal viscosity was significantly decreased in wheat fed birds, especially 100 kGy gamma irradiation. The intestinal micro flora examined in the experiment was not significantly affected by gamma irradiation and enzyme supplementation. There was no observed radioactive contamination both in feeds and eggs under 10 and 100 kGy gamma irradiation of barley and wheat.
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There are serious economic losses because of broken and cracked eggs in layer industry. Egg shell quality is based on nutrition. That’s why specifications of laying hen nutrition must be considered to obtain a proper egg shell quality In... more
There are serious economic losses because of broken and cracked eggs in layer industry. Egg shell quality is based on nutrition. That’s why specifications of laying hen nutrition must be considered to obtain a proper egg shell quality In this collected the effects of laying hen nutrition taken into consideration. In this case, the function of macro and micro minerals in laying hens and their detailed mode of action for egg shell formation was examined and then some special recommendations was given to get less broken-cracked eggs. As a short summary it was concluded that Ca, Mn, Zn, Cu and Cr minerals are important factors for good quality egg shell formation. In addition the form of those minerals must also be considered.
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In this research, the effects of some alternative feed additives for antibiotic growth promoters on performance and gut microflora were examined using 500, one-day-old Ross 508 broiler chicks. Commercial corn-soy-based broiler starter and... more
In this research, the effects of some alternative feed additives for antibiotic growth promoters on performance and gut microflora were examined using 500, one-day-old Ross 508 broiler chicks. Commercial corn-soy-based broiler starter and finisher diets were formulated as basal diets for control treatment. Basal diets were supplemented with an antibiotic growth promoter, a probiotic, a prebiotic (mannan oligosaccharide) and a humic-acid-based mixture, respectively. It total, five dietary treatments were employed in the experiment. Live weight, weight gain and feed consumption values were not affected significantly by dietary treatments throughout the experiment (P > 0,05). However, chicks which received diets supplemented with growth promoter, prebiotic, probiotic and humic-acid-based mixture had better feed conversion than the control group in both the 4-6 and 0-6 week periods (P 0.05). Gut microorganism growth was determined in the 2 nd and 6 th weeks of age by counting the num...
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Bu calismada yumurta tavugu yemlerinde 0, 10, 100 kGy duzeyinde gama isinlanmis arpa ve bugday kullanilmasi ile enzim ilavesinin bagirsak viskozitesi, incebagirsak mikro florasi ve yumurtada radyoaktif kontaminasyon riski uzerine olan... more
Bu calismada yumurta tavugu yemlerinde 0, 10, 100 kGy duzeyinde gama isinlanmis arpa ve bugday kullanilmasi ile enzim ilavesinin bagirsak viskozitesi, incebagirsak mikro florasi ve yumurtada radyoaktif kontaminasyon riski uzerine olan etkileri incelenmistir. Calisma 36 haftalik yasta 324 adet Brown Nick kahverengi yumurtaci tavuk kullanilarak 10 hafta surdurulmustur. Deneme 6 tekerrurlu olarak her bir alt grupta 6 adet tavuk olmak uzere 9 grupta tesaduf bloklari deneme duzeninde yurutulmustur. Bagirsak viskozitesi uzerine arpa agirlikli yemlerde enzim ya da gama isini uygulamasinin etkisi gorulmezken, bugday agirlikli yemlerde viskozitenin onemli olcude azaldigi tespit edilmistir. Ozellikle bugdayin 100 kGy dozunda gama isinlanmasi viskoziteyi onemli olcude dusurmustur(P<0.05). Ince bagirsak mikro florasina gama isinlama uygulamasinin ve enzim uygulamasinin onemli bir etkisinin olmadigi bulunmustur. Ayrica arpa ve bugdayin 10 ve100 kGy duzeyinde gama isinlanmasinin yem ve yumurta...
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Mevcut projemizde kanatli hayvanlarda protein ve fosfor yararlanimini artirmak ve cevre kirliligini azaltmak amaciyla 1 adet yumurta tavugu ve 2 adet broyler arastirmasi olmak uzere 3 adet besleme calismasi yurutulmustur. Yumurta tavugu... more
Mevcut projemizde kanatli hayvanlarda protein ve fosfor yararlanimini artirmak ve cevre kirliligini azaltmak amaciyla 1 adet yumurta tavugu ve 2 adet broyler arastirmasi olmak uzere 3 adet besleme calismasi yurutulmustur. Yumurta tavugu arastirmasi 288 adet Nick Chick beyaz ve 288 adet Nick Brown kahverengi yumurta tavugu ile 30 hafta surdurulmus ve arastirmada normal ve amino asit yogunlugu % 5 azaltilmis yemlere proteaz ilavesi ile olusturulan misir soya kuspesi agirlikli 4 farkli yem kahverengi ve beyaz yumurta tavuklarinda denenmistir. Arastirma sonunda Gerek kahverengi ve gerekse beyaz yumurta tavuklarindan elde edilen yumurta verimi, agirligi, yem tuketimi, yumurta kutlesi uretimi ve yemden yararlanma bakimindan yem amino asit ve protein yogunlugunun %5-6 araliginda asagi indirilmesi ile elde edilen degerler normal yogunluklu yemleri tuketen gruplara son derece benzer olmustur(P>0.05). Yumurta kalite kriterleri bakimindan da farkli yogunluktaki besleme uygulamalari arasinda...
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The aim of this study was to evaluate the impact of a probiotic Bacillus licheniformis strain (DSM 28710; B-Act®) on growth performance and its capacity to mitigate necrotic enteritis (NE; induced via a Clostridium perfringens challenge)... more
The aim of this study was to evaluate the impact of a probiotic Bacillus licheniformis strain (DSM 28710; B-Act®) on growth performance and its capacity to mitigate necrotic enteritis (NE; induced via a Clostridium perfringens challenge) in poultry. A broiler trial was conducted, examining three treatments for 42 days under an induced NE challenge; a negative control (basal diet only); an antibiotic treated group (oxytetracycline hydrochloride (OXT), therapeutic dose of 105 mg OXT/litre in drinking water, for three days after C. perfringens challenge); and a B-Act group (500 g B-Act/tonne of feed, equalling 1.6×1012 colony forming units B. licheniformis DSM 28710/tonne of feed, supplemented from start until finish). Despite the induced NE challenge, weight gains of the B-Act and OXT groups were similar to each other but significantly higher compared to the control at the end of the study (P<0.05). Weight gain of the B-Act group was already significantly higher compared to the con...
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This experiment was conducted to determine the interaction effects that resulted from supplementation of low-protein diets with leucine (Leu), valine (Val), and glycine-glutamic acid (Gly-Glu) on growing broiler chicks from 11 to 24 days... more
This experiment was conducted to determine the interaction effects that resulted from supplementation of low-protein diets with leucine (Leu), valine (Val), and glycine-glutamic acid (Gly-Glu) on growing broiler chicks from 11 to 24 days old. Two levels of digestible Leu (1.07 and 1.50%) and three levels of digestible Val (0.64, 0.74, and 0.84%) were investigated as a 2 × 3 factorial arrangement of treatments with 12 replicates. The diet with 1.07% digestible Leu and 0.84% digestible Val was supplemented with 0.34% Gly and 1.32% Glu as an additional treatment (T7). At 24 days old, 0.84% Val significantly improved feed conversion with 1.07% Leu, but 0.74% Val was sufficient with 1.50% Leu. The T7 diet further improved feed conversion. Increasing dietary Val from 0.64% to 0.74% significantly increased bone density and strength at the lower level of dietary Leu, while T7 significantly increased tibia breaking strength. There were significant Leu × Val interactions for villus height, cr...
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... Yazar(lar): ÇEVİK, ALİ FATİH (Yazar ... 8 g, 3127.2 g, 3029.2 g ve 3176.8 g ve yem değerlendirme sayıları sırasıyla; 1.57, 1.57, 1.57 ve 1.58 olarak tespit edilmiştir.Denemede karkas randımanı, but , göğüs ve abdominal yağ oranı... more
... Yazar(lar): ÇEVİK, ALİ FATİH (Yazar ... 8 g, 3127.2 g, 3029.2 g ve 3176.8 g ve yem değerlendirme sayıları sırasıyla; 1.57, 1.57, 1.57 ve 1.58 olarak tespit edilmiştir.Denemede karkas randımanı, but , göğüs ve abdominal yağ oranı karnitin ilavesinden önemli düzeyde etkilenmemiştir ...
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... Poultry Sci., (79); 886-891. Jones, CD and Thomas, CN 1987. ... Veterinary Medicine, March, 282-288. Mulder, RAW 1991. Probiotics as a tool against Salmonella contamination. Misset-World Poultry, 7(3); 36-37 Nahashon, SN, Nakaue, HS... more
... Poultry Sci., (79); 886-891. Jones, CD and Thomas, CN 1987. ... Veterinary Medicine, March, 282-288. Mulder, RAW 1991. Probiotics as a tool against Salmonella contamination. Misset-World Poultry, 7(3); 36-37 Nahashon, SN, Nakaue, HS and Mirosh, LW 1994a. ...
The effect of corn distillers dried grains with solubles (DDGS), used in grower-finisher diets with or without supplemental enzymes, on growth performance and carcass and meat quality was determined in an experiment with 48 pigs. Group I... more
The effect of corn distillers dried grains with solubles (DDGS), used in grower-finisher diets with or without supplemental enzymes, on growth performance and carcass and meat quality was determined in an experiment with 48 pigs. Group I (control) received a standard grain-soybean meal mixture without DDGS and without enzymes; Group II was fed a mixture containing 15% (grower) or 20% (finisher) of corn DDGS but without the enzymes; Group III received a mixture containing 15% (grower) or 20% (finisher) of corn DDGS with NSP-hydrolyzing enzymes (200 g t-1). The feed mixtures were isonitrogenous and isoenergetic. All pigs were fattened from 30 to 112 kg. At the end of the experiment all pigs were slaughtered, right carcass sides were evaluated and samples of longissimus muscle were taken for analysis. Inclusion of corn DDGS did not significantly affect pig fattening results and meat quality. The addition of NSP-hydrolyzing enzymes to feed mixtures containing corn DDGS tended to positiv...
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Özet: Bu araştırmada; balık unu ile protein miktarı ve kalitesi bakımından balık unu yerine geçebilecek özellikte bulunan, etil alkol vasatında üretilen tek hücre proteininin (eprin) karşılaştırılması yapılmıştır. Deneme, 75 anaç fare (15... more
Özet: Bu araştırmada; balık unu ile protein miktarı ve kalitesi bakımından balık unu yerine geçebilecek özellikte bulunan, etil alkol vasatında üretilen tek hücre proteininin (eprin) karşılaştırılması yapılmıştır. Deneme, 75 anaç fare (15 erkek+60 dişi) kullanılarak, 4 grup ve 12 ...
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In this study, the effect of using gamma irradiated barley and wheat 0, 10 and 100 kiloGray (kGy) and enzyme supplementation on the egg product criterions and external and internal egg quality was examined. In this experiment, 36 weeks... more
In this study, the effect of using gamma irradiated barley and wheat 0, 10 and 100 kiloGray (kGy) and enzyme supplementation on the egg product criterions and external and internal egg quality was examined. In this experiment, 36 weeks old, 324 Brown Nick laying hens were used for ten week. The study was a randomized complete block design with 9 dietary treatments within 6 blocks of 54 pens each 6 birds per pen. Although egg weight was not significantly affected by gamma irradiation; enzyme supplementation of barley based diet significantly increased egg weight compared to barley control group. As egg mass production was considered, enzyme and 100 kGy gamma irradiation significantly improved the egg mass production compared to barley control. The feed conversion ratio was significantly improved by using gamma irradiated barley and enzyme in barley based diets (P
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L-carnitine has indispensable functions in intermediary metabolism and is received by endogenous synthesis and from exogenous sources. It plays an obligate role in fatty acid metabolism by directing fatty acids into the mitochondrial... more
L-carnitine has indispensable functions in intermediary metabolism and is received by endogenous synthesis and from exogenous sources. It plays an obligate role in fatty acid metabolism by directing fatty acids into the mitochondrial oxidative pathway through the action of specialised acyltransferases. In poultry production, L-carnitine has a multi functional purpose, which includes: growth promotion, strengthening the immune system, antioxidant effects and improving semen quality. The concentration of L-carnitine in animals varies widely across species, tissue type, and nutritional status of the animal. It has been suggested that the L-carnitine requirement may be increased under certain circumstances such as via higher performance, various stress conditions and where the diet is deficient in animal protein sources. The review of L-carnitine functions uniquely includes the main aspects of this consequential feed supplementary inclusion in poultry nutrition.
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... Kemiklerde serbest bırakılan Ca&#x27;un düzeyini azaltarak kemik rezorpsiyonunu engellemektedir. İdrar ile Ca atımı artar. 1.25(OH)2D3 &#x27;ün oluşumunun azaltılır. ... 3. Basauri, JG, 1997. Eggshell Quality: a New İnsinght.... more
... Kemiklerde serbest bırakılan Ca&#x27;un düzeyini azaltarak kemik rezorpsiyonunu engellemektedir. İdrar ile Ca atımı artar. 1.25(OH)2D3 &#x27;ün oluşumunun azaltılır. ... 3. Basauri, JG, 1997. Eggshell Quality: a New İnsinght. Feed Compounder. 4. Çetin, S., Gürcan, S., 2006. ...
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Abstract: In this research, the effects of some alternative feed additives for antibiotic growth promoters on performance and gut microflora were examined using 500, one-day-old Ross 508 broiler chicks. Commercial corn-soy-based broiler... more
Abstract: In this research, the effects of some alternative feed additives for antibiotic growth promoters on performance and gut microflora were examined using 500, one-day-old Ross 508 broiler chicks. Commercial corn-soy-based broiler starter and finisher diets were formulated as ...
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High available phosphorus corn (HAP) developed using the low phytic acid 1-1 (lpal-1) allele of the corn LPA1 gene containing 0.27% P, with 0.17% nonphytate P (NPP), was compared to near isogenic normal corn (LPA1), which contained 0.23%... more
High available phosphorus corn (HAP) developed using the low phytic acid 1-1 (lpal-1) allele of the corn LPA1 gene containing 0.27% P, with 0.17% nonphytate P (NPP), was compared to near isogenic normal corn (LPA1), which contained 0.23% P and 0.05% NPP. Five levels of NPP from either HAPC or normal corn (0.40, 0.35, 0.30, 0.25 and 0.20% + 300 phytase units (FTU)/kg microbial phytase) were combined in a 2 x 5 factorial experiment for a total of 10 dietary treatments. Each dietary treatment was fed to eight replicate cages with five Hy-Line W-36 hens per replicate cage from 20 to 40 wk of age. Feed consumption and egg production were not significantly affected by dietary NPP level or corn type. Feed conversion ratio (g feed:g egg mass) was improved at the 0.35% NPP level (1.856) compared to the other levels of NPP--0.40, 0.30, 0.25, and 0.20% + phytase having feed conversion ratios of 1.872, 1.905, 1.930, and 1.898, respectively. Egg weight and egg mass decreased significantly as die...