Algae-based antioxidant containing selenium yeast (Economase®) enhanced the growth performance, oxidative stability, and meat quality of broiler chickens (original) (raw)
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Egyptian Poultry Science Journal, 2018
The purpose of this investigation was to study effects of using seleniumenriched yeast on productive performance, carcass composition, Se deposition in meat, some blood constituents and antioxidant activity of broiler chickens. One hundred fifty chicks of commercial broiler strain were divided into five groups, each group comprised five replicates (6 birds per replicate). The groups received a basal diet complemented with 0.2 (control), 0.3, 0.4, 0.5, or 0.6 ppm selenium (Se)/ kg diet. The experiment continued from one-day-old to five weeks of age. Data obtained illustrated that dietary treatments had insignificant effect on growth performance. Selenium (Se) concentration in breast muscles was increased by increasing Se-enriched yeast level in the diet, where the highest content of Se was in birds fed diet supplemented with 0.6 ppm Se/ kg (being 0.48 ppm /kg). Also, supplementing broiler diets with Se-enriched yeast resulted in higher activities of catalase (CAT), glutathione peroxidase (GPx) and superoxide dismutase (SOD) than in control group. Conversely, plasma malondialdehyde (MDA) levels were significantly declined by increasing dietary Se levels. Concerning total antioxidant capacity (TAC) levels, groups received 0.3 and 0.4 ppm Se/ kg diet appeared significantly similar to control group. Levels of triglyceride (TG), total cholesterol (TC), as well as low-density lipoprotein (LDL-C) in plasma were decreased in all treated groups compared to control group. In conclusion, complementing broiler diets with Se-enriched yeast might be recommended to improve the antioxidant status and blood lipid profile.
Poultry science, 2018
The present study was conducted to assess effects of selenium (Se)-yeast supplementation on glutathione peroxidase activity, Se levels in tissues, growth performance, carcass, and meat composition in broilers. A total of 275 one-d-old Cobb 500 broilers of both sexes were randomly allotted to 1 of 5 treatments during a 42-d period. The 5 treatments differed only in Se content: group 1 had no additional Se (background only); groups 2, 3, and 4 received 0.3 mg/kg of added Se from the beginning of the trial until d 21, whereas in the second half of the study (from d 22 to 42), these groups received 0.3, 0.6, and 0.9 mg/kg of added Se, respectively; and group 5 received 0.9 mg/kg of Se for the entire experimental period. At the end of the study, the control group showed significantly lower (P < 0.01) glutathione peroxidase activity in blood plasma compared to Se-supplemented groups. Regarding Se concentration in various tissues, the groups receiving Se yeast showed higher plasma, fece...
Journal of Agricultural and Food Chemistry, 2012
The effects of sodium selenite (SS) and selenium yeast (SY) alone and in combination (MS) on the selenium (Se) content, antioxidant enzyme activities (AEA), total antioxidant capacity (TAC), and oxidative stability of chicken breast meat were investigated. The results showed that the highest (p < 0.05) glutathione peroxidase (GSH-Px) activity was found in the SS-supplemented chicken breast meat; however, SY and MS treatments significantly increased (p < 0.05) the Se content and the activities of catalase (CAT), total superoxide dismutase (T-SOD), and TAC, but decreased (p < 0.05) the malondialdehyde (MDA) content at 42 days of age. Twelve days of storage at 4°C decreased (p < 0.05) the activity of the GSH-Px, but CAT, T-SOD, and TAC remained stable. SY decreased the lipid oxidation more effectively in chicken breast meat. It was concluded that SY and MS are more effective than SS in increasing the AEA, TAC, and oxidative stability of chicken breast meat.
Animal Feed Science and Technology, 2015
The aim of this study was to assess how dietary supplementation of organic selenium affected carcass and meat quality, tissue selenium content and glutathione peroxidase activity in ducks. The study was performed on 240 one-day old ducklings of the same origin (Cherry Valley hybrid), during a 49-day period, that were fed diets supplemented with four different levels of selenium yeast (ALKOSEL ® R397): groups with 0 mg/kg, 0.2 mg/kg, 0.4 mg/kg and 0.6 mg/kg added Se. Live weight, carcass characteristics, meat quality characteristics, chemical composition of meat, selenium content in plasma, feces, liver and meat, as well as plasma glutathione peroxidase activity were determined. Animals fed high Se diets (0.4 mg/kg) had higher live weight (P < 0.05) compared to those fed diets with inadequate (0 mg/kg) or with supranutritional (0.6 mg/kg) Se levels. Chemical analysis of meat revealed differences in moisture, protein and lipid content among compared groups. Breast meat from the group with the highest dietary Se (0.6 mg/kg) had a higher protein content (P < 0.01) compared to breast meat from groups with 0 mg/kg and 0.2 mg/kg added Se. Se supplementation increased significantly Se levels in plasma, liver and muscles, as well as activity of glutathione peroxidase in plasma.
Acta veterinaria, 2008
The aim of this experiment was to determine the effects of broiler meal supplementation with different forms of selenium (as Na-selenite or selenized yeast) and different amounts of vitamin E on selenium and vitamin E status in broiler tissues. A total number of 240 broilers (Cobb 500) were divided in four experimental groups supplemented with Se and vitamin E for a period of 42 days: group SS+E20-0.3 mg/kg sodium selenite and 20 IU of vitamin E; group SY+E20-0.3 mg/kg selenized yeast and 20 IU of vitamin E; group SS+E100-0.3 mg/kg sodium selenite and 100 IU of vitamin E; group SY+E100-0.3 mg/kg selenized yeast and 100 IU of vitamin E. Blood plasma Se and MDA concetrations and Se dependent GSH-Px were determined on days 1, 21 and 42, wheras content of Se and vitamin E in breast muscle and liver were measured on days 21 and 42 of the experiment. Highest blood plasma glutathione peroxidase (GSH-Px) activities were detected in groups SS+E20 and SS+E100. Supplementation with selenium enriched yeast did not result in a significant increase in plasma GSH-Px activity. Selenium and vitamin E concentrations in breast meat and liver were significantly higher in groups supplemented selenized yeast compared to those receiving Na-selenite. Selenium and vitamin E supplementation did not alter plasma MDA concentrations, but in tissues, selenized yeast provided a consistant, athough not significant, reduction in MDA content. The increased dose of vitamin E suplemented in broiler meal was not justifiable on the basis of vitamin E tissue content and antioxidative effect.
Sustainability, 2022
In this study, orange pulp (OP) and/or organic Se were fed to broilers in order to investigate their effects on the performance, behavior, breast meat quality, and oxidative stability. A total of 240 chicks were allocated to four groups: a control group; an OP group, fed with OP at 50 g/kg of diet; a Se group, fed with organic Se at 0.15 ppm; and an OP + Se group, fed with OP and organic Se at 50 g/kg and 0.15 ppm, respectively. The selenium and OP + Se groups showed improved meat oxidative stability during frozen storage from 90 to 210 days (p < 0.05), whereas the performance and meat quality were unaffected by the dietary treatments (p > 0.05), apart from a reduction in the meat pH and the dressing percentage in the OP-supplemented groups (p < 0.05). A synergistic action between OP and Se was observed for the meat oxidative stability. The polyunsaturated fatty acid (FA) and α-linolenic acid (ALA) contents in the breast meat lipid fractions were increased in the OP groups ...
Brown rice, selenium yeast and ?-tocopherol acetate in chicken’s diet: effects on meat quality
Semina: Ciências Agrárias, 2017
The effects of diet supplementation with ?-tocopherol acetate (VE) and selenium yeast (SeL) on the water holding capacity (WHC), cooking weight loss (CL), drip loss (DL), pH, colour and selenium concentration of the breast of chickens fed diets based on corn or brown rice were studied. From 21 days of age, a total of 200 birds were housed in 38 floor pens (experimental unit) in a randomised 23 factorial arrangement. The levels of supplementation were VE (0 and 200 mg/kg), organic selenium (0 and 0.3 ppm) and two diets (100% corn and 100% brown rice) in a total of eight treatments: T1) corn + 0 SeL + 0 VE (control); T2) corn + 200 mg/kg VE + 0 SeL; T3) corn + 0 VE + 0.3 ppm SeL; T4) corn + 200 mg/kg VE + 0.3 ppm SeL; T5) brown rice + 0 VE +0 SeL; T6) brown rice + 200 mg/kg VE + 0 SeL; T7) brown rice + 0 VE + 0.3 ppm SeL; T8) brown rice + 200 mg/kg VE + 0.3 ppm SeL. The concentration of selenium in the breast increased with VE supplementation in the diet (P < 0.001). However, a pos...
Animals, 2022
Probiotics, such as active yeasts, are widely used to enhance poultry production and reduce feeding costs. This study aimed to investigate the antioxidant and immune responses of broilers to different concentrations of active Saccharomyces cerevisiae (SC) when supplemented to two types of diets. A total of 216 1-day-old Arbor Acres unsexed chicks were used in a factorial design, involving two feeds (regular- versus low-density diet) and three concentrations of SC (0%, 0.02% and 0.04%). The results revealed that the low-density diet reduced the body weight and production index of broilers. The addition of SC improved the production index more than the control diet. Total antioxidant capacity (TAC), alanine aminotransferase (ALT), aspartate aminotransferase (AST) and eosinophils were significantly higher in response to the regular-density diet than the low-density diet; however, phagocytic activity (PA), lymphocyte and lysozyme activity (LYS) were lower. Saccharomyces cerevisiae reduc...
Antioxidant and selenium status of laying hens fed with diets supplemented with selenite or Se-yeast
The experiment was designed to investigate the effects of feed supplementation,with selenite or selenized yeast on parameters of antioxidant and selenium status of laying hens. Hens of laying breed Shaver Starcross 288 were,randomly,divided at the day of hatching into 4 groups and fed for 9 months,on diets,which,differed only in amounts,or forms,of selenium supplemented. Group 1 was fed the basal diet (BD) with native Se content 0.1 mg,Supported by Grant Agency for Science, VEGA of Slovak Republic, Grant No. 2/6173/6 and by
Antioxidants, 2013
The aim of the study was to determine the effect of yeast probiotic on body weight, and the activities of anti-oxidant enzymes: superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx), and malondialdehyde (MDA) concentration of broiler chickens. The experiment was carried out on hybrid Hubbard broiler chickens (n = 200). Two-hundred day-old chicks were randomly selected and distributed into four groups of 50 day-old chicks each: Control, C, and treatment groups comprising T 1 , T 2 and T 3 administered with 0.25 mL, 0.5 mL and 1.0 mL yeast probiotic, respectively. Chicks were fed a commercial starter diet for the first 28 days of age, followed by pelleted finisher diet from 29 to 42 days. Chickens in T 1 had a significantly (p < 0.01) higher body weight at 4th week of age when compared with the control. SOD activity in all treatment groups was not significantly (p > 0.05) different when compared with the control. GPx activity was significantly (p < 0.01) higher in T 1 , when compared with the control. GPx activity in T 2 was higher (p < 0.01) when compared with the control. There was no significant (p > 0.05) difference in MDA level in all the treatment groups. In conclusion, administering yeast probiotic supplement increased body weight and enhanced serum anti-oxidant enzyme activities of broiler chickens.