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Egg has valuable nutrients however; these nutrients may be affected by many factors. In this study, it was aimed to determine the effects of cage type, oviposition time and egg storage period on egg quality characteristics of laying hens. A total of 410 eggs were collected from unenriched and enriched cages in the morning and in the afternoon. After the eggs were weighed, they were stored at 21oC and 20% relative humidity until the 30th day of storage. It was determined that unenriched cage eggs had higher in shell breaking strength, albumen ash and pH & lipid of yolk and lower egg weight loss, yolk index & yolk color compared with enriched cage eggs. Morning eggs had the highest egg weight loss and the lowest egg weight, yolk height and yolk diameter. Dry matter & protein of albumen and dry matter & lipid of yolk were lower, while protein of yolk was higher in the morning eggs than those in the afternoon. It was observed that the storage period was important factor for egg quality characteristics. The effect of oviposition time and storage period interaction on egg quality should not be neglected. Interactions between cage type and storage period and between oviposition time and storage period were found statistically significant for some chemical composition of albumen and yolk. It is concluded that A quality egg criteria are preserved up to 14 days at an average temperature of 21°C and 20% humidity.

The 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.

Bu araştırma, yumurta tavuğu rasyonlarına sepiyolit ilavesinin 22 hafta süreyle performans, yumurta kalitesi ve bazı kan parametreleri üzerine etkilerini belirlemek amacıyla yapılmıştır. Bu amaçla 38 haftalık yaşta 135 adet Lohmann Brown yumurta tavuğu 1 kontrol ve 2 deneme grubuna ayrılmıştır. Sepiyolit kontrol, birinci ve ikinci deneme gruplarının rasyonlarında sırasıyla % 0, 0.5 ve 1 olacak şekilde ilave edilmiştir. Sepiyolit ilavesi yem tüketimi, yumurta verimi, yumurta ağırlığı ve yemden yararlanmayı etkilememiştir. Rasyonlarda %1 düzeyinde sepiyolit kullanılmasıyla yumurta kırılma mukavemeti (p

This study was designed to investigate the effects of the usage of glycerol from biodiesel production from soybean oil in laying hen diets on laying performance, egg traits, heterophils to lymphocytes ratio (H/L), some blood parameters and antibody production to SRBC. A total of 180 Lohmann Brown laying hens 39 weeks of age were allocated to four dietary treatments with one control group and three treatment groups and fed for 16 weeks. Each group was divided into five replicates as subgroups, comprising of 9 hens each. Glycerol was used at the level of 2.5, 5 and 7.5% in the diets of the first, second and third treatment groups, respectively. The diets were formulated to be isocaloric and isonitrogenous. Dietary treatments did not significantly affect body weight, egg production, egg weight, feed efficiency, mortality, egg albumen index, egg yolk index and egg Haugh unit, yolk weight percentage, exterior egg quality characteristics, excreta moisture, H/L ratio, blood parameters and antibody production to SRBC. Hens fed diets with 7.5% glycerol consumed significantly less feed than those of the other groups. Egg yolk cholesterol concentration was significantly higher for hens fed diets with 5 and 7.5% glycerol as compared to those of the other groups (P

Bu çalışmanın amacı erkek ve dişi Pekin ördeklerinde ilk hafta ana makinesinde büyütmenin besi performansı, karkas özellikleri, et kalitesi ve bazı kan parametreleri üzerine etkilerini belirlemektir. Çalışmada toplam 120 adet (60 erkek ve 60 dişi) pekin ördeği palazı kullanılmıştır. Her cinsiyet grubu rastgele iki farklı yetiştirme grubuna ayrılmıştır. Birinci gruptaki (ana makinesi) palazlar besinin 1-7. günleri arasında ana makinesinde daha sonra altlıklı sistemde büyütülmüştür. İkinci gruptakiler (altlık/kontrol) ise besinin 1-42. günleri arasında altlıklı sistemde büyütülmüştür. Besinin 41. gününde her yetiştirme ve cinsiyet grubundan 5 ördek rastgele seçilerek kan örnekleri alınmıştır. Besinin 42. gününde ördekler özel bir kesimhanede kesilmiştir. Karkas randımanı, organ ağırlıkları ve karkas özellikleri belirlenmiştir. Göğüs ve but etlerinde pH, kül, yağ ve ham protein düzeyleri tespit edilmiştir. Altlıklı sistemde büyütülen ördeklerde toplam canlı ağırlık artışı, karkas randımanı ve göğüs eti yüzdesi ana makinesinde büyütülen ördeklere göre daha yüksek (P, The aim of this study is to determine effects of brooder machine rearing method in the first week on fattening performance, carcass characteristics, meat quality and some blood parameters of male and female Pekin ducks. A total of 120 (60 male and 60 female) ducklings were used in the research. Each sex group was randomly allocated into two rearing methods. In the first group (brooder machine), ducklings were arranged in the brooder machine from 1 to 7 d then reared on the deep litter floor until day 42 . In the second group (litter/control), ducklings were reared on the deep litter floor from the day 1 to the day 42 of the fattening period. At the day 41 of the fattening period, 5 ducks from each sex and rearing groups were randomly selected and bled. At the day 42 of the fattening period all ducklings were slaughtered in a commercial slaughterhouse. Hot carcass yield, organ weights and carcass characteristics were determined. Also pH, ash, fat and crude protein were determined in the breast and thigh muscles. Total body weight gain, hot carcass yield and breast percentage of ducks reared on the litter group (control group) were significantly (P

WOS: 000342266000009, The 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., Integro Food and Feed Manufacturing Company (Istanbul, Turkey), This work was supported by Integro Food and Feed Manufacturing Company (Istanbul, Turkey).

WOS: 000344689400018, This 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, Integro Food and Feed Manufacturing Company (Istanbul, Turkey), The authors wish to thank Integro Food and Feed Manufacturing Company (Istanbul, Turkey) for supporting this study and Beypilic for supplying chicks (Bolu, Turkey).

This study was carried out to determine the effects of dietary sepiolite on performance, carcass traits and some blood parameters of broilers. A total of 204 daily Ross 308 female broiler chicks were allocated into one control group and two treatment groups each containing 68 chicks. 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. The experimental period lasted 6 weeks. Supplemental sepiolite improved body weight (P

WOS: 000231641800009, PubMed: 16156131, This experiment was carried out to determine the effects of using L-carnitine and humate alone or in combination in quail diets on laying performance, egg traits and blood parameters. A total of 280 Japanese quails aged 10 weeks, divided into one control group and three treatment groups, were used. The diets of the first, second and third treatment groups were supplemented with 100 mg L-carnitine/kg, 1.5 g humate (Farmagulator (R) Dry Plus)/kg and 100 mg L-camitine + 1.5 g humate/kg, respectively. The experimental period lasted 16 weeks. The addition of L-camitine and sodium humate alone or in combination did not significantly affect body weight, feed consumption, egg production, feed conversion ratio, mortality, egg-shell thickness, egg yolk index and the percentages of egg-shell, albumen and yolk. Egg weight increased (P < 0.001) with L-camitine supplementation. The values of egg albumen height (P < 0.05), egg albumen index (P < 0.01) and egg Haugh unit (P < 0.05) were increased with humate supplementation. Egg cholesterol content and blood serum parameters were not affected by the supplementation of L-camitine with or without humate. The results in this study demonstrated that L-carnitine supplementation increased egg weight while humate addition increased egg albumen index and egg Haugh unit of laying quails. However, the combined administration of L-camitine and humate did not have any significant effects on the parameters measured.

Bu çalışma, % /0-20 düzeyinde findık içi kahıı/Iu kapsayan konsantre yem karmalannm erkek Merinos kUZlllannda etin fiziksel, kimyasal ve duyusal kalite nitelikleri üzerine etkisini helirlemek amacıyla yapıidr.Araştırmada J.5 -2.0 aylık .'lütfen kesilmiş 30 haş erkek Merinos kuzusu kul/amldı. Her hiri LOhaş kuzudan oluşan i kontrol, 2deneme olmak üzere 3 grup Iralinde yürütüldü.Etin kalite nitelikleri bakımından gruplar arasında istatistikiaçıdan önemli bir fark gözlenmedi. Böylece fındık içi kabuğununetin kalitesini olumsuz yönde etkilemediği sonucuna varıldı.

Mikroorganizmalar için bir çok inhibitör, hayvansal ürünlerdedoğalolarak mevcuttur. lnhibitö"rler hücre, hücre duvarı vqa hücre membranıarıüzerine etki ederek, enzim sistemlerine ve hücrenin genetik mekanizmasına zararvererek vtya önemli besin unsurlarını bağlayarak mikroorganizmaları etkiler.Yumurta akındaki en önemli inhibitör lizo;:,imdir. Konalbumin gramnegatif bakterilerin başlıca inhibitö"rüdür. Sütteki inhibitiMerin bir kısmıantibiyotikler, bakteriyel viruslar (bakteriofajlar) ve çeşitli doğal inhibitö'rlerdir.Hayvansal dokularda mikroorganizmalar için çeşitli inhibitö"rler vardır. Lizozim, polipeptidler, poliamino asit/er ve antimikrobiyel serbest )'ağ asitlerihayvansal ürünlerde bulunabilir.İnhibitörlerin çoğu, yumurta akı, süt ve çeşitli hayvansal dokularda bulunmaktadır.

Ultrofiltrasyon 0.02-0. 041.1bü)'üklü.~ünde gözeneklerden oluşmuş bir membran filtras)'on işlemidir. Bazı süt ürünlerinin üretiminde kullanılmaktadır. Ultrafiltrasyon ile süt konsantrat ve ultrafiltrata ayrılır. Konsantrat,başlıca, peynir yapımmda kullanılır.Peynil' yapımında ultrafiltre edilmiş sütün kullanılmasıyla üretim sırasında,sütün nakil maliyetinde ,rennet, tuz ve starter miktarlarında, peynil' suyununbiyolojik oksijen ihtiyacında, ısıtma enerjisi ve iş gücünde tasarruf sa,~lanır. Aynızamanda peynil' randımanını da artırır. Vltrafiltre edilmiş sütle sürekli, peyniryapımı mümkün gô'rülmektedir.