Effects of a dietary antioxidant blend and vitamin E on growth performance, oxidative status, and meat quality in broiler chickens fed a diet high in oxidants

Abstract

The aim of the study was to determine the effects of a dietary antioxidant blend (AB) and vitamin E on performance, oxidative status, and meat quality. Cobb 500 male broilers (n = 1,200, d 0) were randomly distributed into 6 treatments with 10 replicate pens. Treatments included 1) HO: high oxidant diet, vitamin E at 10 IU/kg, 3% oxidized soybean oil, 3% polyunsaturated fatty acid (PUFA) source; 2) VE: the HO diet with vitamin E at 200 IU/kg; 3) AOX: the HO diet with AB at 135 mg/kg; 4) VE+AOX: the HO diet with vitamin E at 200 IU/kg and AB at 135 mg/kg; 5) SC: standard control; and 6) PC: positive control, the SC diet with AB at 135 mg/kg. From d 0 through d 21, high oxidant diet treatment birds had greater BW, ADG, and ADFI than the SC birds; the AOX birds had better G:F on d 10 and 42, and from d 0 to 42 than SC birds (P < 0.05). The plasma TBA reactive substance level was lower in the AOX birds than the VE treatment birds in all phases (P < 0.05). High oxidant diet treatment birds had greater α-1-acid glycoprotein levels on d 10 than SC and PC birds (P < 0.05). The AOX, PC, and SC birds had a greater level of uric acid than the HO and VE+AOX birds on d 10. Superoxide dismutase expression in the liver was less with the HO treatment compared with the SC treatment on d 7 (P < 0.05). The vitamin E concentration in the breast muscle was greatest in the VE birds, whereas vitamin A concentration was greater in the PC birds compared with the SC birds on d 21 (P < 0.05). Compared with VE and AOX, the HO treatment had greater drip loss (P < 0.05). In conclusion, dietary addition of AOX was effective in improving growth, moderately restored the whole body antioxidant capability, and reduced drip loss.

Effects of Olive Leaf and Marigold Extracts on the Utilization of Nutrients and on Bone Mineralization using Two Different Oil Sources in Broilers

“…For instance, the results obtained for grape and olive pomace, olive leaves, grape seeds, marigold, cinnamon, sage, green tea, tannin, thyme, and rosemary extracts, as well as different mixtures of polyphenol sources, can either increase (Eid et al, 2003;Tavarez et al, 2011;Lu et al, 2014;Bravo et al, 2014), decrease, or have no effect on productivity (Goni et al, 2007;Gurbuz et al, 2010;Brenes et al, 2010;Rezar and Salobir, 2014).…”

Effects of Different Dietary Rosmarinus Officinalis Powder and Vitamin E Levels on the Performance and Gut Gross Morphometry of Broiler Chickens

“…It is essential for the health of animals submitted to stressful rearing conditions, and it used as a feed additive in broilers diets (Khan et al, 2012;Lu et al 2014aLu et al , 2014b. However, Xiao et al (2013) suggested that there are functional redundancies between VitE and other natural compounds in broiler diets.…”

Effects of Maternal and Progeny Dietary Vitamin Regimens on the Performance of Ducklings

“…However, with the growing evidence of the potential of vitamins to be used as so-called "nutraceuticals" to improve poultry health and wellbeing, more parameters, such as antioxidant status, bone quality, immune response, and behavior, have been used to assess vitamin needs (Habibian et al, 2014;Lu et al, 2014;Saunders-Blades and Korver, 2015). Most vitamins, especially fat-soluble vitamins, are deposited in the eggs in proportion to diet inclusion (Leeson and Caston, 2003), and subsequently affect the embryonic development and post-hatch life of progeny chicks (Surai, 2000;Lin et al, 2005;Driver et al, 2006).…”