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A blend of thyme and rosemary powders with poultry by-product meal can be used as a natural antioxidant in broilers

Nameghi, Alireza Hesabi; Edalatian , Ommolbanin; Bakhshalinejad, Reza.
Acta sci., Anim. sci; 45: e57126, 2023. tab
Artigo em Inglês | VETINDEX | ID: biblio-1396723


A total of 500, 14-d old male Ross 308 broilers were allocated into five treatments (4 replicates each) including: a negative (NC) and positive control diet (PC) which supplemented without and with 7% poultry by-product meal (PBPM), respectively and three levels of additive supplementation of thyme and rosemary powders in the basal diets: 0.750% rosemary powder (PCR); 0.375% thyme powder + 0.375% rosemary powder (PCRT), and 0.750% thyme powder (PCT) rosemary powder. The PCRT diet improved (p<0.05) average daily gain and feed conversion ratio by 5.62 and 10.37% compared to PC, respectively. The serum concentration of lipids (triglycerides, cholesterol, high-density lipoprotein, and low-density lipoprotein) was decreased while the ilealvillus heightand ratio of villus height to crypt depth as well as ileal microbiota population were improved(p<0.05) in response to inclusion PCRT diet compared to PC diet. The blood serum concentration of malondialdehyde was statistically decreased (p<0.05) by supplementation of PCRT in broiler diets. Our results suggested that supplementation of a blend of thyme and rosemary powders at the level of 0.375% of each into broiler diet during d 14-42 has merit to be used as a natural antioxidant in diets formulated by PBPM.(AU)
Biblioteca responsável: BR68.1