Seyit Ahmet Gökmen

• Ondokuz Mayıs University
• Lecturer Dr. at Ondokuz Mayıs University

This study was conducted to determine the effect of reducing calcium (Ca) and available phosphorus (AvP) on performance, carcass yield, tibia traits and jejunum histomorphology in broilers. For this purpose, 480 one-day-old Ross 308 male chicks were distributed into four trial groups with eight subgroups. During the starter period, birds were fed w...

Probiotics are live microorganisms that provide many health benefits to the host when administered in sufficient amounts. The use of probiotics in poultry diets has steadily increased over the years as an alternative to antibiotics to avoid the use of antibiotics in the feed as a result of increasing demand. The objective of this study, determine t...

This study was performed to determine the effect of mushroom powder (MP) (Agaricus bisporus) supplementation on growing Japanese quail (Coturnix coturnix japonica). A total of 300 unsexed 1-day-old Japanese quails with similar body weights (8.38 ± 0.2 g) were randomly assigned to five treatment groups with six replications. Additions of 0, 0.25, 0....

Bu çalışmada yumurtacı tavuk rasyonlarına fitobiyotik ve probiyotiğin ayrı ayrı ve birlikte ilavesinin performans, yumurta iç ve dış kalite parametreleri üzerine etkilerini belirlenmesi amaçlanmıştır. Çalışma 41 haftalık yaştaki toplam 108 adet yumurta tavuğunda (Tinted) 12 hafta süreyle yürütülmüştür. Denemede kontrol, 500 mg/kg seviyesinde fitobi...

This study was conducted to determine the effect of adding two different types of probiotics and their mixtures to the diets of laying hens on performance and egg quality. In the study, a total of 105 laying hens at 59 weeks of age were fed with five different diets created by adding Bacillus megaterium (1x1010 g/cfu) and Bacillus amyloliquefaciens...

This study was carried out to determine the effects of adding phytobiotics and probiotics separately or together on barley-based laying hens diets on performance, egg internal and external quality parameters. In the study, 105 Tinted laying hens aged 59 weeks were used. The experiment was carried out in a total of 35 subgroups, consisting of 5 diff...

The goal of the current experiment was to investigate the effect of dietary concentrations of purple carrot powder (PCP) on performance, egg production, egg quality, and the antioxidant capacity of the yolk in laying quails. A total of one hundred and fifty 22-week-old Japanese laying quails were allotted to 5 dietary treatments each with 6 replica...

The survey was carried out to establish the impact of red beet powder (RBP) on performance parameters and egg quality in laying quails. One twenty hundred (120) female laying quails aged 22 weeks were randomly assigned into five groups of 4 females each, and six replicates. Treatments diets were formed by adding 0, 0.2, 0.4, 0.6, and 0.8% RBP to th...

Aim of study: Pomegranate seed oil (PSO) is a nutritive, antioxidant-rich by-product, and it has been tested as a feed ingredient for livestock. However, studies on quails are scarce. The current study investigated that the effect of PSO on the performance and meat instrumental quality of quails. Area of study: Türkiye. Material and methods: A to...

This study was conducted to determine the effect of different levels of organic copper (organic Cu) sup�plementation on performance, egg quality, serum parameters and incubation characteristics in Japanese quail diets. 120 Japanese breeder quails of 7 weeks old were used in the study and lasted 84 days. Four diets containing different levels of org...

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 tot...

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...

The current research was carried out to determine the effect of adding sodium formate at the level of 0, 5, and 10 g/kg to the diets on the performance, egg quality and some serum parameters in layer Japanese quails. In the experiment, a total of 84 female quails at the age of 20 weeks were randomly distributed to 3 treatment groups with 7 replicat...

This study was carried out to determine the effects of addition maca powder to breeder Japanese quail diets on performance, egg quality and some hatchability properties. In the study, 120 breeding Japanese quails (80 females, 40 males) at the age of 18 weeks were used. The quails were randomly distributed to including 20 subgroups that five replica...

This study was carried out to determine the effect of adding ginger powder at different levels (0.0, 0.5, 1.0, 2.0%) to the ration on performance, blood parameters and meat quality characteristics of male Japanese quails. 48 male Japanese quail (Coturnix coturnix Japonica) at 28 days of age were used in the study. The experiment was carried out for...

The current research was conducted to determine the effects of corn-soybean meal and wheat-sunflower meal based diets on performance and egg quality of two different layer hen genotypes. The experiment was carried out to randomized design consisting of two hen genotypes (ATAK-S and Tinted) and two different diets (corn-soybean meal and wheat-sunflo...

The purpose of this study was to examine the effect of adding different levels of black cumin seed (BCS) to the compound feed on performance, serum criteria, and reproductive hormones in male Japanese quails (Coturnix coturnix Japonica). 80 male Japanese quails (Coturnix coturnix Japonica) at the age of 21 days were used in the study. The trial was...

Bu çalışma, rasyona farklı seviyelerde (% 0, 0.5, 1.0 ve 2.0) tarçın tozu ilavesinin erkek Japon bıldırcınlarında performans, üreme organlarının ölçüleri, kan parametreleri ve et rengi özelliklerine olan etkisini belirlemek amacıyla yürütülmüştür. Çalışmada 49 günlük yaşta 64 adet erkek Japon bıldırcını (Coturnix coturnix Japonica) kullanılmışt...

The aim of this study was to determine the effects of adding orange peel (PKY), lemon peel essential oils (LKY) and PKY+LKY (respectively 300, 300, 150+150 mg/kg) to laying quail diets on performance, egg internal and external quality parameters and hatchability parameters. The eight week trial was conducted in 20 subgroups, with 4 treatment groups...

Bu çalışmanın amacı yumurtlayan bıldırcın rasyonlarına portakal kabuğu (PKY), limon kabuğu esansiyel yağlarının (LKY) ve karışımlarının PKY+LKY (sırasıyla 300, 300, 150+150 mg/kg) ilavesinin performansa, yumurta iç ve dış kalite parametreleri ile kuluçka parametreleri üzerine etkilerini belirlemektir. Sekiz hafta süren deneme, 4 muamele grubu her m...

The current research was conducted to determine the effects of corn-soybean meal and wheat-sunflower meal based diets on performance and egg quality of two different layer hen genotypes. The experiment was carried out to randomized design consisting of two hen genotypes (ATAK-S and Tinted) and two different diets (corn-soybean meal and wheat-sunflo...

The current research was carried out to determine the effects of maize-soybean meal and wheat-sunflower meal based diets on the performance and egg quality of two different laying hen genotypes reared in barn system. The experiment was a randomised design consisting of a 2 x 2 factorial arrangement, with 2 laying hen genotypes (ATAK-S and Tinted) a...

This study was carried out in order to determine the effect of different levels of rosemary (Rosmarinus officinalis L.) essential oil on performance parameters, some serum characteristics and reproductive hormones of male Japanese quails (Coturnix coturnix Japonica). In the study, 60 male Japanese quails at the age of 49 days were used as animal ma...

This study was carried out in order to determine the effect of different levels of rosemary (Rosmarinus officinalis L.) essential oil on performance parameters, some serum characteristics and reproductive hormones of male Japanese quails (Coturnix coturnix Japonica). In the study, 60 male Japanese quails at the age of 49 days were used as animal...

Feed additives that used in broilers to promote growth, protect animal health and improve feed utilization have shown a great change in recent years. Understanding the negative effects of antibiotics on the health of consumers and banning their use as feed additives have had an impact on this change. After this stage, the researches on different su...

This study was carried out to determine the effects of diets containing different levels of anise seed on the performance, egg internal and external quality characteristics, macro and micro mineral content of bone, some serum parameters and reproductive characteristics of breeding Japanese quail. The study was carried out in 3 periods of 28 days. I...

This study was carried out in order to determine the effect of different levels of rosemary (Rosmarinus officinalis L.) essential oil on performance parameters, some serum characteristics and reproductive hormones of male Japanese quails (Coturnix coturnix Japonica). In the study, 60 male Japanese quails at the age of 49 days were used as animal m...