The aim of the present study was to evaluate the effect of rosemary (Rosmarinus officinalis L.) powder and vitamin E, as feed additives combined at different levels, on oxidative stability of broiler meat up to 14th day after chilling. A total of 270 1-day-old male chicks of Ross 308 strain were randomly assigned to nine dietary groups with three replicates having 10 birds each. Diets were supplemented with 0, 0.5, or 1.0% of rosemary (R) powder and 0, 100, or 200Â mg/kg of vitamin E (alpha-tocopherol acetate; VitE) according to the following treatments: T1 â control basal diet (0RÂ +Â 0VitE); T2 â 0RÂ +Â 100VitE; T3 â 0RÂ +Â 200VitE; T4 â 0.5RÂ +Â 0VitE; T5 â 0.5RÂ +Â 100VitE; T6 â 0.5RÂ +Â 200VitE; T7 â 1.0RÂ +Â 0VitE; T8 â 1.0RÂ +Â 100VitE; and T9 â 1.0RÂ +Â 200VitE. At day 42, two birds of each replicate were slaughtered and the length and weight of cecum was recorded. Carcasses and their economically valuable parts were also weighted and broiler breast refrigerated at 4Â°C for 14Â days. At day 0, 4, 7, and 14 of storage the malondialdehyde (MDA) content of breast meat was evaluated. After 4Â days of storage, meat MDA contents of the T5 (0.43Â mg/kg) and T9 (0.41Â mg/kg) were lower than control group (T1: 0.55Â mg/kg; pÂ <.05). On day 7, groups supplemented with rosemary or VitE alone showed similar MDA contents (pÂ >.05) than control. On day 14, lower (pÂ <.05) MDA contents than T1 were observed in all groups except for broilers fed diet supplemented only with vitamin E. No effects were observed between treatments on the relative weight of the several carcass traits, however, VitE influenced (pÂ <.05) the weight and size of cecum. Based on our findings, the combination of rosemary powder and vitamin E at different levels in diet is useful to limit the lipid oxidation of chilled chicken meat.
Scheda prodotto non validato
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo
|Titolo:||Oxidative stability of chilled broiler breast meat as affected byÂ dietary supplementation with rosemary (Rosmarinus officinalis L.) powder and vitamin E|
TUFARELLI, VINCENZO (Corresponding)
|Data di pubblicazione:||2017|
|Appare nelle tipologie:||1.1 Articolo in rivista|