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Effect of Chestnut Tannins and Vitamin E Supplementation to Linseed Oil-Enriched Diets on Growth Performance, Meat Quality, and Intestinal Morphology of Broiler Chickens

Lidija Perić (), Dragan Žikić, Mirjana Đukić Stojčić, Vladimir Tomović, Jakob Leskovec, Alenka Levart, Janez Salobir, Zdenko Kanački and Vida Rezar
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Lidija Perić: Department of Animal Science, Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Serbia
Dragan Žikić: Department of Animal Science, Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Serbia
Mirjana Đukić Stojčić: Department of Animal Science, Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Serbia
Vladimir Tomović: Faculty of Technology, University of Novi Sad, 21000 Novi Sad, Serbia
Jakob Leskovec: Department of Animal Science, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia
Alenka Levart: Department of Animal Science, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia
Janez Salobir: Department of Animal Science, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia
Zdenko Kanački: Department of Veterinary Medicine, Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Serbia
Vida Rezar: Department of Animal Science, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia

Agriculture, 2022, vol. 12, issue 11, 1-12

Abstract: The objective of this study was to establish the effects of chestnut tannin extract or vitamin E added to linseed oil-enriched diets on growth performance, meat quality, and intestinal morphology of broiler chickens. A total of 240 day-old Ross 308 male broiler chicks were included in trial. 5% of cold-pressed linseed oil was included in finisher diets (21–40 days), and three feeding treatments with four replicates were formed: finisher without additives; finisher + 200 IU vitamin E/kg; finisher + 500 mg/kg of chestnut wood tannin extract. No significant influence of treatments was established on body weight or feed conversion ratio. A negative effect on feed intake ( p < 0.05) was found in the vitamin E group. The addition of vitamin E increased the dressing percentage ( p < 0.05) and increased the breast meat yield ( p < 0.01) compared to the control group. No significant effects were found on the water holding capacity or pH of breast meat. The highest level of AST ( p < 0.01) and ALT ( p < 0.05) was recorded in vitamin E group. The addition of chestnut tannin extract in feed increased villus height, villus height: crypt depth ratio, and villus area compared to the other two groups ( p < 0.05). It can be concluded that vitamin E supplementation improves carcass percentage and breast meat yield, while chestnut tannins improve the intestinal morphology of broiler chickens when added to oil-enriched diets.

Keywords: tannins; vitamin E; broiler; performance; meat; gut morphology (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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