Vitamin E and organic selenium for broilers from 22 to 42 days old: performance and carcass traits

Abstract

This study was conducted to evaluate the effect of vitamin E and selenium on performance, viability, productive efficiency, and yields of carcass, major cuts, and organs of broilers from 22 to 42 days submitted to cyclic-heat stress. The experimental design was randomized blocks, in a 2 × 3 factorial arrangement with two levels of selenium (0.1 and 0.3 mg/kg) and three levels of vitamin E (300, 400, and 500 mg/kg), plus a control treatment. Animals were submitted to a natural condition of high cyclic temperature. Organic selenium levels of 0.1 and 0.3 mg/kg associated with 300, 400, and 500 mg/kg of vitamin E were tested. The level of vitamin E did not affect the performance or production efficiency of broilers in the period from 22 to 33 days and 22 to 42 days. However, the selenium inclusion level of 0.3 mg/kg improved the viability in both phases. The yields of carcass, major cuts, intestine, and heart were not influenced by the levels of selenium and vitamin E, whereas abdominal fat for the selenium level 0.1 mg/kg decreased linearly with the inclusion in vitamin E.

Effects of vitamin E, inorganic selenium, bacterial organic selenium, and their combinations on immunity response in broiler chickens

“…Supplementation of 200 mg/kg of Vit E in broiler diet improved weight gain and feed intake compared to the basal diet [ 39 ]. In contrast, dietary Vit E and Se had no effect on the body weight of layer hens [ 40 ], and different Vit E levels showed no significant changes in the broiler performance [ 41 ]. On the other hand, present study showed that both Se and Vit E supplementation had no significant effect on the lymphoid organ weights (thymus, bursa, and spleen) in broiler chickens.…”

The effect of supplementation of multistrain probiotic preparation in combination with vitamins and minerals to the basal diet on the growth performance, carcass traits, and physiological response of broilers

“…Feeding probiotics have been reported able to reduce fat content [ 12 ] as well as improve carcass traits of broiler chickens [ 13 ]. Certain vitamins, for example, tocopherol [ 14 , 15 ] and retinol [ 16 ] have also been reported to decrease the abdominal fat content and enhance carcass mass of broilers. Concomitantly, dietary supplementation with minerals such as Mn [ 17 , 18 ], Zn [ 16 ], and S [ 19 ] was beneficial to decrease the abdominal fat deposition in broiler chickens.…”

Cytotoxicity, Redox and Immune Status in African Catfish, Clarias Gariepinus (Burchell, 1822) Exposed to Bisphenol a (BPA) and its Analogues

“…At cellular and biochemical level, ROS bind to biomolecules such as nucleic acid, lipids and proteins resulting in the production of oxidized products of the molecules e.g. guanosylated nucleic acids, carbonylated proteins, and peroxidized lipids (Albuquerque et al 2017). Among the oxidative stress markers, levels of lipid peroxidation and activities of antioxidant enzymes like catalase, superoxide dismutase, glutathione peroxidase etc.…”