Dietary vitamin e (α-tocopherol acetate) and selenium supplementation from different sources: Performance, ascites-related variables and antioxidant status in broilers reared at low and optimum temperatures

dc.contributor.authorÖzkan S.
dc.contributor.authorMalayoǧlu H.B.
dc.contributor.authorYalçin S.
dc.contributor.authorKaradaş F.
dc.contributor.authorKoçtürk S.
dc.contributor.authorÇabuk M.
dc.contributor.authorOktay G.
dc.contributor.authorÖzdemir S.
dc.contributor.authorÖzdemir E.
dc.contributor.authorErgül M.
dc.date.accessioned2024-07-22T08:22:43Z
dc.date.available2024-07-22T08:22:43Z
dc.date.issued2007
dc.description.abstract1. This study compared the effect of dietary supplementation with organic or inorganic selenium (Se) sources plus control amounts or large amounts of vitamin E (-tocopherol acetate) in broilers raised at control (20 to 24C) or low (145 to 168C) temperatures after 2 weeks of age. 2. The following dietary treatments were used from one day old. Diet 1, the control diet, comprised a commercial diet containing 015 mg/kg inorganic Se and 50 mg vitamin E/kg feed. Diet 2 was the same as diet 1, supplemented with 015 mg/kg inorganic Se. Diet 3 was the same as diet 2 but was supplemented with 200 mg/kg vitamin E. Diet 4 was the same as diet 1, but inorganic Se was replaced with 030 mg/kg organic Se. Diet 5 was the same as diet 4, supplemented with 200 mg/kg vitamin E. 3. Low temperature reduced the growth rate of broilers; however, at 6 weeks, there were no differences in the body weights of birds fed on organic Se supplemented diets housed at low or control temperature. The feed conversion ratio was significantly affected by low temperature but not by diet. The heterophil/lymphocyte ratio was higher in chicks after one week in the cold, indicating mild stress. Blood triiodothyronine levels were significantly higher in birds after 1 and 4 weeks in the cold but thyroxin was not affected. 4. Organic Se supplementation increased relative lung weight at the control temperature, which might lead to greater respiratory capacity. Relative spleen weight significantly decreased in broilers fed diets supplemented with inorganic Se under cold conditions, a possible indication of chronic oxidative stress. 5. At the low temperature, supplementation with organic Se alone, or with inorganic Se and vitamin E increased glutathione peroxidase (GSHPx) activity and glutathione (GSH) concentration in the liver of broilers, which may indicate increased activity of birds' antioxidant defence against suboptimal environments.
dc.identifier.DOI-ID10.1080/00071660701593951
dc.identifier.issn14661799
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/19208
dc.language.isoEnglish
dc.subjectAging
dc.subjectalpha-Tocopherol
dc.subjectAnimal Feed
dc.subjectAnimal Husbandry
dc.subjectAnimal Nutrition Physiology
dc.subjectAnimals
dc.subjectAntioxidants
dc.subjectAscites
dc.subjectChickens
dc.subjectDiet
dc.subjectDietary Supplements
dc.subjectHeart
dc.subjectLipid Peroxidation
dc.subjectLiver
dc.subjectMale
dc.subjectPoultry Diseases
dc.subjectSelenium
dc.subjectTemperature
dc.subjectThyroxine
dc.subjectTriiodothyronine
dc.subjectVitamins
dc.subjectWeight Gain
dc.subjectAves
dc.subjectalpha tocopherol
dc.subjectantioxidant
dc.subjectdrug derivative
dc.subjectliothyronine
dc.subjectselenium
dc.subjectthyroxine
dc.subjectvitamin
dc.subjectaging
dc.subjectanimal
dc.subjectanimal disease
dc.subjectanimal food
dc.subjectanimal husbandry
dc.subjectarticle
dc.subjectascites
dc.subjectbird disease
dc.subjectblood
dc.subjectchicken
dc.subjectclinical trial
dc.subjectcontrolled clinical trial
dc.subjectcontrolled study
dc.subjectdiet
dc.subjectdiet supplementation
dc.subjectdrug effect
dc.subjectgrowth, development and aging
dc.subjectheart
dc.subjectlipid peroxidation
dc.subjectliver
dc.subjectmale
dc.subjectmetabolism
dc.subjectrandomized controlled trial
dc.subjecttemperature
dc.subjectweight gain
dc.titleDietary vitamin e (α-tocopherol acetate) and selenium supplementation from different sources: Performance, ascites-related variables and antioxidant status in broilers reared at low and optimum temperatures
dc.typeArticle

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