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Dive into the research topics where Betül Güroy is active.

Publication


Featured researches published by Betül Güroy.


Journal of Animal Physiology and Animal Nutrition | 2011

Effect of dietary Ulva and Spirulina on weight loss and body composition of rainbow trout, Oncorhynchus mykiss (Walbaum), during a starvation period.

Derya Güroy; Betül Güroy; Daniel L. Merrifield; Sebahattin Ergün; Ahmet Adem Tekinay; Murat Yigit

A study was conducted to determine the effect of dietary algal supplementation on weight loss and proximate composition in rainbow trout, Oncorhynchus mykiss, during starvation. An algae-free control diet (C) and four experimental diets, including varying levels of raw Ulva meal (5% = U5; 10% = U10) and Spirulina meal (5% = S5; 10% = S10) were formulated. Fish were fed to satiation for 12 weeks and then subjected to a 3-week starvation period. Body weight, viscerosomatic index (VSI, %), hepatosomatic index (HSI, %), dress-out (DO, %) and chemical composition of carcass were analysed at the end of each starvation week. The accumulated weight loss of the fish fed dietary algae was almost 50% less than the control group (p < 0.05) after 2 and 3 weeks starvation. No significant differences in weight loss were observed among the fish fed different algal diets during the starvation period. Total body protein and ash contents remained constant in all groups throughout the starvation period. Fish in all treatments lost a significant level of total lipids and changes of liver fatty acid profiles were also observed. Results indicate that low level inclusion of algae in aquafeeds may have economical advantages in terms of reducing weight loss in fish when subjected to a short-term fasting period, that sometimes is necessary after a heavy rainfall or when fish stocks are held back to meet market demand.


Aquaculture International | 2009

Influence of Ulva meal on growth, feed utilization, and body composition of juvenile Nile tilapia (Oreochromis niloticus) at two levels of dietary lipid

Sebahattin Ergün; Murat Soyutürk; Betül Güroy; Derya Güroy; Daniel L. Merrifield


Aquaculture | 2010

Assessment of Chlorogloeopsis as a novel microbial dietary supplement for red tilapia (Oreochromis niloticus)

Daniel L. Merrifield; Derya Güroy; Betül Güroy; Matthew James Emery; Carole A. Llewellyn; Steve Skill; Simon J. Davies


Turkish Journal of Veterinary & Animal Sciences | 2007

Effects of Ulva rigida and Cystoseira barbata Meals as a Feed Additive on Growth Performance, Feed Utilization, and Body Composition of Nile Tilapia, Oreochromis niloticus

Betül Güroy; Şükran Cirik; Derya Güroy; Feyza Sanver; Ahmet Adem Tekinay


Aquaculture International | 2012

Spirulina as a natural carotenoid source on growth, pigmentation and reproductive performance of yellow tail cichlid Pseudotropheus acei

Betül Güroy; İzzet Şahin; Serhan Mantoğlu; Selin Kayalı


Journal of Biological Sciences | 2007

Effects of Ulva rigida on the Growth, Feed Intake and Body Composition of Common Carp, Cyprinus carpio L.

Ibrahim Diler; A. Adem Tekinay; Derya Güroy; Betül Güroy; Murat Soyutürk


Aquaculture International | 2013

Effect of autoclaved Ulva meal on growth performance, nutrient utilization and fatty acid profile of rainbow trout, Oncorhynchus mykiss

Betül Güroy; Sebahattin Ergün; Daniel L. Merrifield; Derya Güroy


Aquaculture Nutrition | 2013

Evaluation of feed utilization and growth performance of juvenile striped catfish Pangasianodon hypophthalmus fed diets with varying inclusion levels of corn gluten meal

Betül Güroy; İzzet Şahin; S. Kayalı; Serhan Mantoğlu; B. Canan; Daniel L. Merrifield; Simon J. Davies; Derya Güroy


Turkish Journal of Veterinary & Animal Sciences | 2006

Influence of Feeding Frequency on Feed Intake, Growth Performance and Nutrient Utilization in European Sea Bass (Dicentrarchus labrax) Fed Pelleted or Extruded Diets

Derya Güroy; Emrah Deveciler; Betül Güroy; Ahmet Adem Tekinay


Aquaculture Research | 2013

Replacement of fishmeal with rice protein concentrate in practical diets for European sea bass Dicentrarchus labrax reared at winter temperatures

Derya Güroy; İzzet Şahin; Betül Güroy; Daniel L. Merrifield; Musa Bulut; Ahmet Adem Tekinay

Collaboration


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Sebahattin Ergün

Çanakkale Onsekiz Mart University

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Ahmet Adem Tekinay

Çanakkale Onsekiz Mart University

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Musa Bulut

Çanakkale Onsekiz Mart University

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Simon J. Davies

Plymouth State University

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Murat Soyutürk

Çanakkale Onsekiz Mart University

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Murat Yigit

Çanakkale Onsekiz Mart University

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