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Öğe Effect of boric acid in rainbow trout (Oncorhynchus mykiss) growth performance(Taylor & Francıs Ltd, 2018) Öz, Mustafa; İnanan, Burak Evren; Dikel, SuatThe effects of different levels of boron supplementation to feed on the growth parameters of rainbow trout (Oncorhynchus mykiss) were investigated for the first time using four diet variations (0.01%, 0.05%, 0.10%, and 0.20% of boron in feed) in addition to a control diet (without boron). After 120 days of feeding, the final weight (FW), weight gain, condition factor, feed intake, feed conversion rates, specific growth rate, protein efficiency ratio, survival rates, economic conversion rate, and economic profit index were calculated for each treatment and compared with the control as growth parameters. The initial weight was 17.89 +/- 1.12g; at the end of feeding, the FWs were determined as 89.91 +/- 2.11g for the control and 90.56 +/- 1.34g, 99.21 +/- 3.76g, 88.14 +/- 2.43g, and 78.74 +/- 1.47g for 0.01%, 0.05%, 0.10%, and 0.20% of boron feed treatments, respectively. The results of this study show that feeding rainbow trout with 0.05% boron-supplemented feed stimulates the growth parameters, but 0.20% of boron supplementation inhibits the growth of rainbow trout.Öğe Effect of garlic (Allium sativum)-supplemented diet on growth performance, body composition and fatty acid profile of rainbow trout (Oncorhynchus mykiss)(CMB Association, 2022) Öz, Mustafa; Dikel, SuatIn this study, rainbow trout were fed for a total of 90 days with different feed mixes containing 0.00%, 1.00%, 1.50% and 2.00% garlic (Allium sativum). The effect of garlic on the growth performance, body composition and fatty acid profile of rainbow trout was researched. The starting weight of fish in the experimental group was approximately 64.12??0.29 gr, which increased to 234.12??3.54gr, 246.31??4.41gr, 258.74??4.42gr, and 268.79??4.79gr, while the difference in growth between the groups was observed to be statistically significant (p<0.05). At the end of the feeding period, the specific growth rate (SGR), the economic conversion ratio (ECR), the feed conversion ratio (FCR), the economic profit index (EPI) and the protein efficiency ratio (PER) were checked. In this study, the nutritional composition and fatty acid profiles of fish after 90 days of feeding were examined. As a result of this study, the supplementation of garlic to the diet given to rainbow trout caused an increase in their protein ratio and a decrease in their moisture content and fat ratio. Additionally, it led to a decrease in fatty acid and monounsaturated fatty acid levels and an increase in polyunsaturated fatty acids.Öğe Effects of black cumin oil (nigella sativa) on sensory, chemical and microbiological properties of rainbow trout during 23 days of storage at 2 +/- 1 degrees c(Taylor & Francis Inc, 2017) Öz, Mustafa; Dikel, Suat; Durmuş, Mustafa; Özoğul, YeşimIn the present study, black cumin oil in the rates of 0.00 % (the control), 0.10 %, 0.40 %, 0.70 %, 1.00 % and 1.30% was added to rainbow trout feed for 144 days. After the feeding process, trout were harvested and stored at 2 +/- 1 degrees C in ice, and changes in chemical, microbiological, and sensory parameters were examined periodically. According to sensory analyses, black cumin oil used in fish meat did not cause a perceptible sensory change for all groups. Chemical analyses showed that the addition of black cumin oil to fish feed led to higher total volatile basic nitrogen content in the fish flesh. During the storage period, the highest peroxide values were observed in the groups with 1.0% and 1.3% black cumin oil added, and the lowest were in the groups with 0.0% and 0.1% added oil. The highest microbial count value was observed in the control group.Öğe Effects of boric acid on the growth performance and nutritional content of rainbow trout (Oncorhynchus mykiss)(Elsevier Ltd, 2021) Öz, Mustafa; Tatıl, Tuğçe; Dikel, SuatIn this study, boric acid was added to the rainbow trout (Oncorhynchus mykiss) feed at ratios of 0.00%, 0.01%, 0.05%, 0.10%, and 0.20%. The feeding period of this study continued for 90 days. The effect of boric acid on the growth parameters and nutritional composition of rainbow trout were investigated. In this research, effects on live weight gain (LWG), amount of feed intake, feed conversion rate (FCR), protein efficiency rate (PER), specific growth rate (SGR), survival rate, economic conversion rate (ECR), and economic profit index (EPI) were evaluated as growth parameters. As for nutritional contents, the total crude protein, lipid, raw ash, and humidity ratios were calculated. Rainbow trout with an initial weight of 92.04 g reached up to 195.05 ± 1.69 g, 202.69 ± 1.94 g, 217.53 ± 2.84 g, 195.25 ± 2.18 g, and 181.20 ± 1.89 g, respectively in the different levels of boric acid at the end of the trial period. The best growth performance was obtained in the group with 0.05% boric acid added, while the lowest growth performance was observed in the group with 0.20% boric acid added. It was concluded based on the results of this study that the amount of boric acid up to 0.05% in the fish feed positively affected the growth parameters and the addition of higher amounts had either no benefit or negative effects on the growth performance of rainbow trout. Furthermore, boric acid in feed affected the nutritional composition of fish meat.Öğe Effects of dietary garlic (Allium sativum) oil on growth performance, haemato-biochemical and histopathology of cypermethrin-intoxicated Nile tilapia (Oreochromis niloticus)(John Wiley and Sons Inc, 2024) Öz, Mustafa; İnanan, Burak Evren; Üstüner, Enes; Karagöz, Betül; Dikel, SuatWhen pesticides are introduced into wetlands by agriculture, fish quickly absorb them through their gills. Pesticides reduce hatchability, impede growth, and antioxidant response, killing fish. Therefore, it's crucial to find effective pesticide mitigation methods for fish. Objective: In this study, the effects of garlic (Allium sativum) oil on the growth, haematology, biochemistry and histopathology parameters of Nile tilapia (Oreochromis niloticus) exposed to cypermethrin toxicity were investigated. Methods: In the research, cypermethrin was added to the water of the experimental groups at a rate of 1:20 of the LC50 value, and 1.00% garlic oil was added to the fish feed. Fish with an initial weight of 30.26 ± 0.26 g were fed for 45 days. Results: At the end of feeding, the final weights were determined as 69.39 ± 0.41 (G1), 61.81 ± 0.65 (G2), 82.25 ± 0.36 (G3), and 75.04 ± 0.68 (G4) grams, respectively. Histopathological examinations revealed serious lesions in the gill, liver, brain, and muscle tissues in the cypermethrin group, whereas these lesions were minimal or absent in the garlic oil group. Conclusions: Garlic oil supplementation had positive effects on growth, haematology, blood biochemistry, hepatosomatic index and histopathological parameters. These findings suggest that garlic oil is a potential protective agent against cypermethrin toxicity.Öğe Effects of glutamine on growth performance, nutrient content, fatty acid profile, and blood parameters of rainbow trout (Oncorhynchus mykiss)(John Wiley and Sons Inc, 2024) Öz, Mustafa; İnanan, Burak Evren; Karaşahin, Tahir; Dikel, SuatIn this study, different amounts of glutamine were added to the diet of rainbow trout, and they were then fed for a period of 90 days. The current research investigated the effects of glutamine on various aspects of rainbow trout, including growth performance, condition factor, viscerosomatic index, hepatosomatic index, carcass composition, fatty acid profile, hematological parameters, and biochemical parameters. The study's findings revealed that adding glutamine to the diet of rainbow trout had a beneficial impact on their growth features. The rainbow trout group that was fed a 2% concentration of glutamine experienced the most notable increase in growth rate. A statistically significant difference in growth was observed among all groups (p < 0.05). Adding glutamine to the diet increased the amount of protein and decreased the fat content in the flesh of the fish. Glutamine exerted an influence on the blood and biochemistry parameters of fish, as well as their fatty acid composition. In conclusion, the inclusion of glutamine in the diet of fish could potentially enhance their immune system, improve the quality of their muscles, and enhance their growth performance.Öğe Farklı protein düzeylerinde yemlerle beslenen Şabut Balığı (Tor grypus) yavrularının büyüme performansları(Turkish Science and Technology Publishing (TURSTEP), 2022) Dikel, Suat; Özşahinoğlu, Igın; Öz, Mustafa; Demirkale, İbrahimÇalışmada 2,38 g ortalama ağırlığında endemik bir tatlı su balığı olan Şabut (Tor grypus ) yavruları 3 farklı protein içerikli yemle 45 gün boyunca beslenerek büyüme performansları değerlendirilmiştir. Bu değerlendirmeleri oluşturmak amacıyla deneme grupları farklı protein seviyeli yemle beslenen G1(%33 HP), G2 (%37 HP) ve G3 (%41 HP) şeklinde kurgulanmıştır. Büyüme parametreleri olarak canlı ağırlık kazancı (CAK), Yem değerlendirme oranı (YDO), Spesifik büyüme oranı (SBO), Hayatta kalma oranı, Ekonomik dönüşüm oranı (ECR) ve Ekonomik yarar indeksi (EPI) üzerine etkileri araştırılmıştır. Yavrular araştırma sonunda sırasıyla 3,42±0,16 g, 4,17±0,06g ve 4,50±0,02 g ağırlığa ulaşmıştır. Deneme sonu FCR, EPI ve ECR açısından G3 ve G2, grubu bireyleri benzer performans göstermişlerdir.Öğe Investigation of the effect of water and feed sourced boron on the growth performance and blood parameters of Nile tilapia, Oreochromis niloticus(John Wiley and Sons Inc, 2024) Çelik, Mustafa; Dikel, Suat; Öz, MustafaThis study investigated the effects of water and feed-derived boron on the growth performance and blood parameters of Nile tilapia fingerlings. Two different experiments were designed for this purpose. The first phase of the study determined the LC50 (96-h) value of boron for Nile tilapia. Fish were then fed in water containing boron at a ratio of 1:20 of the LC50 value. In the second experiment, feed containing boron at different rates (0.00%, 0.01%, 0.05%, and 0.10%) was fed for 40 days. At the end of the feeding period, growth performance, hematology, and blood biochemistry parameters were determined. The study concluded with a calculated LC50 value of 161.053 mg/L boron for Nile tilapia. The initial weight was 12.51 ± 0.79 g; at the end of feeding, the final weights were determined as 26.36 ± 0.15 g for the control and 28.07 ± 0.23, 32.28 ± 0.25 and 24.81 ± 0.48 g for 0.01%, 0.05% and 0.10% of boron feed treatments, respectively. At the end of feeding in water containing boron, the final weight of Nile tilapia was determined as 24.26 ± 0.26 g (LC50/20%). The results showed that feeding Nile tilapia with 0.05% boron-supplemented feed stimulated growth and positively affected blood parameters, whereas waterborne boron inhibited Nile tilapia growth and negatively affected blood parameters.Öğe Yüzer ağ kafeslerde sınıflandırmanın gökkuşağı alabalıklarında (oncorhynchus mykiss) büyüme performansına etkileri(Su Ürünleri Merkez Araştırma Enstitüsü, 2016) Öz, Mustafa; Eroldoğan, O. Tufan; Dikel, SuatAlabalık yetiştiriciliğinde büyük balıkların küçüklerden ayrılmasının ve dolayısı ile sınıflandırmanın kafes ortamında ne derece etkili olduğunun belirlenmesi amacıyla yapılan bu çalışmada iki farklı deneme grubu oluşturulmuş ve 75 günlük besleme dönemi sonunda besi performansları değerlendirilmiştir. Denemede boylanmış grubu (K) 72,14±3,48 g lık küçük balıklar oluştururken, diğer grubu (B+K); %80 küçük balıklar (71,04±1,10) ve %20 büyük balıklar (151,8±8,14) oluşturmuştur. Deneme sonunda (K) grubunun 203,52±16,20 g ortalama canlı ağırlığa ulaşırken (B+K) grubunun küçük bireyleri 185,13±21,77 g, büyük bireyleri ise 223,25±28,00 g ortalamaya ulaşmışlardır. Boylanmış gruptaki yem değerlendirme oranı (1,61±0,052) diğer gruptan (2,17±0,039) daha düşüktür (P<0,05). Elde edilen bu sonuçlara göre sadece küçük bireylerin olduğu aynı boydaki grubun bireylerinin daha iyi büyüdüğü ve yemden yararlanma oranlarının daha iyi olduğu ve dolayısı ile %20 oranında büyük balıkların varlığı alabalıklarda büyümeyi kötü yönde etkilediği sonucuna varılmıştır.
