Open AccessEffect of dietary extract and dried areal parts of Rosmarinus officinalis on performance, immune responses and total serum antioxidant activity in broiler chicks
Author(s) -
Mohsen Soltani,
Sayed Ali Tabeidian,
Gholamreza Ghalamkari,
Amir Hossein Adeljoo,
Mohammad Mohammadrezaei,
Sayed Sadra Ale Saheb Fosoul
Publication year - 2016
Publication title -
asian pacific journal of tropical disease
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.208
H-Index - 33
ISSN - 2222-1808
DOI - 10.1016/s2222-1808(15)61017-9
Subject(s) - broiler , rosmarinus , antibody titer , vitamin e , officinalis , zoology , antioxidant , body weight , vitamin c , completely randomized design , starter , immune system , titer , biology , antioxidant capacity , vitamin , food science , chemistry , antibody , endocrinology , botany , biochemistry , immunology
Objective: To investigate effects of Rosmarinus officinalis compared with antibiotic and\udvitamin E on performance, immune responses and total serum antioxidant activity in broiler\udchicks.\udMethods: A total of 455 day-old broiler chicks (Ross 308) were assigned to one of 7\udtreatments, comprising 5 replicates in a completely randomized design including a basal diet\ud(control) or either an antibiotic group; 4.5 mg/kg flavophospholipol, vitamin E; 150 IU/kg\udα-tocopherol acetate and also two different levels of rosemary containing 3 (RP1) and 7 g/\udkg (RP2) powder added to a basal diet. Furthermore, two different levels of rosemary either\udencompass of 2.5 (RE1) and 5.0 g/L (RE2) ethanolic extract were added to drinking water.\udBody weight, daily feed intake and feed conversion ratio were evaluated in different phases of\udthe experiment. Antibody titers against sheep red blood cells, Newcastle and influenza disease\udviruses were measured on day 32 of age.\udResults: Birds receiving RP1 possessed lower body weight than control group during starter\udand growing periods (P < 0.05). Supplementing RE1 decreased body weight on Days 28 and\ud42 of age compared with control group (P < 0.05). In comparison to control birds, carcass yield\udimpaired in broilers given different levels of rosemary powder and rosemary ethanolic extract (P\ud< 0.05). Although antibody titers were not affected by dietary treatments, supplementing RP2\udand RE1 considerably improved total serum antioxidant activity compared with other dietary\udtreatments (P < 0.05).\udConclusions: In conclusion, RP1 and RE1 deteriorated body weight of chickens in different\udperiods. Inclusion of RP2 and RE1 resulted in improved total serum antioxidant activity