Inorganic selenium supplementation in poultry diet has been controversial. It has been linked that the excess and deficiency of this mineral can lead to health problems in these animals. However, this fact is not so evident in quails. In this research 120 female quails (220.6 ± 8.2 g) at 10 weeks of age were allocated to five treatment groups with six replicates of four quails in each. Experimental diets were formed by adding 0, 0.25, 0.50, 0.75 or1.00 mg/kg of inorganic selenium (sodium-selenite) to the diet containing 0.12 mg/kg of selenium. We observed that performance parameters, mortality, egg external, and internal quality of quails were not affected by the supplementation of inorganic selenium to the diet Serum glucose (P = 0.0020) and creatinine (P = 0.0333) levels were affected by inorganic selenium supplementation, but no differences were found for other parameters among those treatments. The addition of 0.50 mg/kg of inorganic selenium to the diet increased serum glucose levels of laying quails compared with the control group. While serum creatinine level was maximized with the addition of 0.25 mg/kg inorganic selenium to the diet, and it was minimized with the addition of 0.50 mg/kg inorganic selenium. Supplementation with inorganic selenium (0 to 1.00 mg/kg) in laying quail diets did not have any adverse effect on performance, mortality, and egg quality during the study. No abnormalities were found in the serum parameters that would lead to the suspicion of metabolic disease in the quails.

The aim of this study is to determine the effects of adding different levels (0, 50, 100, 200, 300 and 400 mg/kg) of orange peel oil to the laying quail diets on performance, eggshell quality and some serum parameters. During the experiment, a total of 120 female Japanese quails at the age of 20 weeks were randomly distributed to 6 treatment groups with 4 replicates, each with 5 quail, for six weeks. The supplementation of different levels orange peel oil to the diets did not affect the performance and eggshell quality parameters, except for eggshell thickness. Eggshell thickness was significantly reduced with the addition of orange peel oil to the diet, and this decrease was more pronounced at the level of 200 mg / kg. Serum glucose, creatinine, albumin, globulin, total protein, ALT and AST concentrations were not affected by orange peel oil. Serum cholesterol concentration considerably declined with the supplementation of 400 mg / kg orange peel oil to the diet. Serum calcium level significantly improved with the addition of 100 and 200 mg / kg orange peel oil to the diet compared to the control group. Additionally, serum phosphorus concentration was considerably increased by 100 mg / kg and more levels orange peel oil. According to these results, it is possible to say that the orange essential oil has the effect of reducing cholesterol at 400 mg / kg and improving mineral metabolism at 100 mg / kg, but this positive effect could not prevent the decrease in eggshell thickness.

Calcium content in the diet can affect egg quality and production in aged birds. Calcium pidolate is a new form of calcium supplementation in poultry diets, which favours the absorption of this mineral. The current study was conducted to evaluate the effect of dietary calcium pidolate concentration in the diets of aged laying Japanese quails. A total of 120 female quails (27 weeks old) were assigned to four treatment groups, each with six replicates of five quails per pen. In the 10-week trial, quail diets were supplemented with calcium pidolate at four concentrations (0, 0.25, 0.50 and 1.00 g/kg), providing 25.1, 25.4, 25.8 and 26.5 g/kg calcium, respectively. As a result of this study, body weight, feed intake and feed conversion ratio did not change with the concentration of calcium pidolate (P > 0.05). In contrast, albumen and yolk index decreased as calcium pidolate level increased (P < 0.05). Moreover, calcium pidolate at a concentration of 0.50 g/kg resulted in the greatest egg production, eggshell breaking strength and eggshell thickness (P < 0.05), while above these levels the factors studied were negatively affected. According to these results, the optimal concentration of calcium pidolate in the diets of aged laying quails was 0.50 g/kg.

The aim of this study was to determine effects of different dietary rosemary essential oil levels on growth performance, carcass traits and haematological values of breeder chukar partridge. Eighty (60 females and 20 males), 32-week-old breeder chukar partridge were randomly divided in five treatments, with four replicate pens with 4 birds each. Five experimental diets were formulated according to rosemary essential oil inclusion rates 0 mg/kg, 24 mg/kg, 48 mg/kg, 72 mg/kg and 96 mg/kg, respectively. The experiment lasted for 8 weeks. The chukar partridges had free access to ad libitum feed and water. At the end of the trial, 1 male and 1 female partridge were slaughtered for blood analysis. The obtained results showed that there was no significant difference in feed intake, body weight gain between the control and treatment groups. Dietary rosemary essential oil supplementation did not affect blood serum glucose, urea, triglyceride, total cholesterol, HDL-C and LDL-C levels in breeder Chukar partridges. It could be concluded that supplementing rosemary essential oil into Chukar partridges diet show no negative effect on growth performance.

Bu çalışma, etlik piliçlerde kekik (Thymus vulgaris L.), biberiye (Rosmarinus officinalis L.) ve karabaş otu (Lavandula stoechas L.) esansiyel yağları ve bunların karışımlarının canlı ağırlık, canlı ağırlık artışı, yem tüketimi, yemden yararlanma oranı ve karkas özellikleri üzerine etkisini tespit etmek için yapılmıştır. Çalışmada, günlük yaşta toplam 640 adet etlik civciv (Ross 308) kullanılmış ve 5 tekerrürlü olacak şekilde 8 muamele grubuna tesadüfü olarak yerleştirilmiştir. Her bir muamele grubunda 80 adet civciv bulunmaktadır. Deneme rasyonları sırasıyla kontrol (0 mg/kg), ilave kekik esansiyel yağı (50 mg/kg), biberiye esansiyel yağı (50 mg/kg), karabaş otu esansiyel yağı (50 mg/kg), kekik + biberiye (25+25 mg/kg), kekik + karabaş otu (25+25 mg/kg), biberiye + karabaş otu (25+25 mg/kg) ve kekik+biberiye+karabaş otu (16,7 + 16,7 + 16,7 mg/kg) oluşmaktadır. Yem ve su ad libitum olarak sağlanmıştır. Çalışma 6 hafta sürmüştür. Performans parametreleri haftalık olarak belirlenmiştir. Denemenin 42. gününde hayvanlar kesilerek karkas özellikleri tespit edilmiştir. Çalışma sonuçlarına göre, rasyon farklı esansiyel yağ ve bunların karışımlarının etlik piliçlerde canlı ağırlık, canlı ağırlık artışı, yem tüketimi, yem değerlendirme oranı ve karkas özellikleri üzerine etkisi önemli olmamıştır. Effects of an Addition of Different Essential Oils and Their Combinations to Diets on Performance and Carcass Characteristics Parameters in Broilers A R T I C L E I N F O A B S T R A C T Research ArticleReceived 03 April 2017 Accepted 27 April 2017This study was conducted to determine the effect of dietary supplementation of thymus (Thymus vulgaris L.), rosemary (Rosmarinus officinalis L.) and French lavender (Lavandua stoechas L.) essential oils and their mixtures on body weight and body weight gain, feed consumption, feed conversion ratio, carcass characteristics in broiler. A total of one day old 640 broiler chicks (Ross 308) were used divided into 8 groups each having five replicates, ramdomly. There were 80 chicks in each experimental group. The experimental diets were consisted of control (0 mg/kg), addition to thymus essential oil (50 mg/kg), rosemary essential oil (50 mg/kg), lavandula essential oil (50 mg/kg) tymus + rosemary (25+25 mg/kg), tymus + lavandula (25+25 mg/kg), rosemary + lavandula (25+25 mg/kg), tymus + rosemary + lavandula (16.7+16.7+16.7 mg/kg), respectively. Feed and water were provided as ad libitum. Experimental period was six weeks. The according to results that dietary different essential oil and their combinations did not significantly effect on body weight, body weight gain, feed consumption, feed conversion ratio and carcass characteristics.

Kanatlı hayvan yemlerinde soya küspesi ve balık unu gibi protein kaynağı olarak kullanılan yem bileşenlerinin, piyasa fiyatlarındaki dengesizlik ve yukarı yönlü artış sonucunda daha ucuz alternatif kaynaklara duyulan ihtiyaç artmıştır. Bu alternatif yem kaynaklarından birisi olan Jatropha (Jatropha curcas) bitkisi, biyoyakıt kaynağı olarak son yıllarda popülaritesini arttıran, protein içeriği oldukça yüksek olan sütleğen (Euphorbiaceae) familyasına ait bir bitkidir. Bu derlemede Jatropha (J. curcas) bitkisinin besin madde içeriği ile kanatlı hayvan beslemede kullanılabilirliği araştırılmıştır.

This research was conducted to determine the effects of different levels (0, 50 or 100 mg/kg) of nano zinc (nano Zn) supplementation as a zinc source in male Japanese quail (Coturnix coturnix Japonica) diets on performance, some serum parameters, testis characteristics and meat colour. In the four-week study, a total of 60 male Japanese quails (190.4 ± 2.4 g body weight) at the age of 49 days were distributed to three treatment groups and each treatment group was divided into four subgroups, each containing five male quails. As a result of this study, in the current study, the addition of nano Zn to the diet had no effect on feed intake, testis morphology, serum cholesterol, total protein, calcium and phosphorus levels (P>0.05). Addition of nano Zn to diet increased body weight gain (BGW) (P<0.05). With the addition of nano Zn, serum glucose level increased while serum triglyceride level decreased (P<0.05). Breast and thigh + drumstick L* values among meat parameters increased with the addition of nano Zn to male quail diets (P<0.05). As a result, adding nano Zn to male quail diets increased serum glucose level and meat L* value, decreased serum triglyceride concentration, and testis morphology was not affected.

Determination of Nutritive Values of Different Malt Barley Varieties Using In Vitro Gas Production Technique A R T I C L E I N F O A B S T R A C T Research ArticleReceived 22 This study was conducted to determine the nutritive value of malt barley varieties using in vitro gas production technique and in vitro methane production. Atılır, Durusu and Fırat were used as three malt barley varieties. As a result of this study, between the varieties in terms of dry matter (DM), crude ash (CA), crude protein (CP), crude fat (CF), neutral detergent fiber (NDF) and hemicellulose (HEM) were found significantly important but differences between the varieties in terms of ADF were not found significant. The gas production rate of malt barley varieties ranged from 64.00 to 72.50 ml/200 mg DM. The metabolisable energy (ME) and net energy lactation (NEL) contents of malt barley varieties ranged from 11.75 to 12.86 MJ/kg DM and 7.16 to 7.98 MJ/kg DM respectively. The highest methane (CH 4 ) content was obtained from the variety of Fırat with a value of 13.34 ml/200 mg DM, whereas the lowest value was obtained from the Atılır variety with a value of 12.16 ml/200 mg DM.