Effects of olive pulp addition to broiler diets on performance, selected biochemical parameters and antioxidant enzymes

 
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Effects of olive pulp addition to broiler diets on performance, selected biochemical parameters and antioxidant enzymes (EN)

Pappas, Athanasios C
Papadomichelakis, George
Haroutounian, Serkos
Mpekelis, Vasileios
Fegeros, Konstantinos
Tsiplakou, Eleni
Zervas, George
Sotirakoglou, Kyriaki
Mitsiopoulou, Christina

Olive oil production generates various by-products that can be used in animal nutrition. These by-products contain several polyphenolic compounds that may exhibit antioxidant properties. The present study was designed to evaluate the effects of adding olive pulp to the feed on broiler performance, carcass yield and antioxidant enzymes. Two hundred (200), as hatched, day-old, Cobb 500 broilers were reared in total for 42 days. There were 4 dietary treatments. In T1 treatment, no olive pulp was added to starter, grower and finisher diet. In T2 treatment, olive pulp was added to starter, grower and finisher diet at a level of 0, 2.5 and 5% respectively. In T3 treatment, olive pulp was added to starter, grower and finisher diet at a level of 0, 5 and 5% respectively. In T4 treatment, olive pulp was added to starter, grower and finisher diet at a level of 0, 5 and 8% respectively. Performance, carcass yield and a number of biochemical parameters were examined. Oleuropein and hydroxytyrosol were present in the olive pulp at 952 and 216 mg/kg respectively. Broilers performed well and no differences were observed between treatments on final body weight, carcass yield, total antioxidant activity and expression of selected antioxidant enzymes. Discriminant analysis was further applied and revealed that samples clustered according to added level of olive pulp. Samples from broilers fed T2 and T3 diet were located in the middle of the plot away from other treatments exhibiting high values of carcass, breast yield and most of the antioxidant enzyme activities. In conclusion, the study revealed that olive pulp may be used in diets of broilers and that future studies may reveal ideal inclusion level for enhanced performance and antioxidant protection. (EN)

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Journal of the Hellenic Veterinary Medical Society

Αγγλική γλώσσα

2020-04-17


Hellenic Veterinary Medical Society / Ελληνική Κτηνιατρική Εταιρεία (EN)

1792-2720
2585-3724
Journal of the Hellenic Veterinary Medical Society; Vol 70, No 3 (2019) (EL)
Journal of the Hellenic Veterinary Medical Society; Vol 70, No 3 (2019) (EN)

Copyright (c) 2019 Athanasios C Pappas, Eleni Tsiplakou, George Papadomichelakis, Christina Mitsiopoulou, Kyriaki Sotirakoglou, Vasileios Mpekelis, Serkos Haroutounian, Konstantinos Fegeros, George Zervas (EN)



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