Effect of feeding different sources of selenium on growth performance and antioxidant status of broilers

Woods, S L; Sobolewska, Sylwia; Rose, S.P.; Whiting, Isobel Margaret; Blanchard, Alexandra; Ionescu, Catherine; Bravo, David; Pirgozliev, V.

doi:10.1080/00071668.2020.1716301

Cited by 42 publications

(34 citation statements)

References 52 publications

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“…Furthermore, in this study, it was found that upon dietary Se supplementation, serum TAC was significantly increased, in parallel with increases in enzymatic activities of GPx and TrxR. These results were not unexpected as altered Se status has long been known to be associated with impairment of antioxidant enzyme activities and augmentation of oxidants (Hu et al 2012;Yang et al 2016;Woods et al 2020). Se acts throughout the cytoplasm as a part of selenoenzyme GPx to neutralise reactive radicals (Yuan et al 2012), though all the observed effects cannot be explained by this function alone.…”

Section: Discussionsupporting

confidence: 64%

“…A similar inconsistency is seen in the other carcase traits. Boostani et al (2015) reported that supplementing a broiler diet with 0.3 mg/kg of Se (as SS) increased liver yield, whereas Woods et al (2020) observed no change in liver yield by diet supplementation with the same level of Se as SS or SY. Otherwise, in this study, the liver weight declined by all the investigated Se sources, and the lowest liver weight was found in broiler groups that were given with 0.5 mg/kg of Se.…”

Section: Discussionmentioning

confidence: 99%

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Comparative assessment of sodium selenite, selenised yeast and nanosized elemental selenium on performance response, immunity and antioxidative function of broiler chickens

Pardechi

Tabeidian

Habibian

2020

Italian Journal of Animal Science

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Although selenium (Se) supplementation is a common practice in poultry, the best source and level has not been established yet. Thus, a 42-day experiment involving diets with three levels (0.1, 0.2 and 0.5 mg/kg) of supplemental Se from sodium selenite (SS), selenised yeast (SY) and nanoelemental Se (SN) was conducted to evaluate the possible differential responses of broiler chickens to inorganic, organic and nano Se sources relative to a control diet. Throughout the experiment, broilers receiving Se supplements had higher feed intake, body weight gain (BWG) and survival rate than the control. Broilers fed dietary SY or SN had improved BWG compared with those fed the SS-supplemented diets. Broilers treated with Se supplementation had increased serum glutathione peroxidase (GPx) and thioredoxin reductase (TrxR) activities and produced higher antibody responses to avian influenza virus (AIV) and sheep red blood cell (SRBC) versus the control. These effects were enhanced with increasing Se addition, except for GPx that responded equally to all supplemental Se levels. Also, broilers receiving supplementary SY or SN exhibited higher anti-AIV and anti-SRBC titres along with more elevated serum Se, TrxR activity and total antioxidant capacity compared with those receiving SS. At the same time, SN had the most increasing effect on anti-SRBC titre. To conclude, diet supplementation with 0.5 mg/kg of Se in the form of SY or SN was capable of meeting the Se demands of broiler chickens for optimum growth and antioxidant capability, while SN seemed to be the most effective Se source in enhancing immunity. HIGHLIGHTS Diet supplementation with SN and SY, especially at 0.5 mg/kg diet, improved broiler performance and carcase quality of chickens compared with SS. SY and SN showed more favourable effects on oxidative status and immunocompetence. The best anti-SRBC titre was observed with SN.

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Section: Discussionsupporting

confidence: 64%

Section: Discussionmentioning

confidence: 99%

Comparative assessment of sodium selenite, selenised yeast and nanosized elemental selenium on performance response, immunity and antioxidative function of broiler chickens

Pardechi

Tabeidian

Habibian

2020

Italian Journal of Animal Science

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“…Soyabean protein-chelated Se was a novel source of organic Se that was synthesised by chelating SS with hydrolysed soyabean proteins. Previously, SC has only been tested in broiler chicken in physiological state (35) . In that study, birds were fed a Se-deficient diet (NC), Se-replete diet (PC) or the Se-deficient diet supplemented with SC, SY or SS (same products as used in the present study) (35) .…”

Section: Discussionmentioning

confidence: 99%

“…Previously, SC has only been tested in broiler chicken in physiological state (35) . In that study, birds were fed a Se-deficient diet (NC), Se-replete diet (PC) or the Se-deficient diet supplemented with SC, SY or SS (same products as used in the present study) (35) . In comparison with the NC group, all sources of Se significantly increased Se deposition in liver and breast meat and enhanced blood GPx activity to the extent that is comparable with the PC group, while SY displayed the most prominent effect among all sources of Se (35) .…”

Section: Discussionmentioning

confidence: 99%

Organic selenium supplement partially alleviated diquat-induced oxidative insults and hepatic metabolic stress in nursery pigs

et al. 2020

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The study investigated antioxidant effects of Se on resilience to diquat-induced oxidative stress in nursery pigs. Thirty-five weaned pigs were individually housed and randomly assigned to one of the five treatments. Pigs were (1) fed a basal diet and intraperitoneally injected with sterile saline (negative control), (2) fed the basal diet and injected with diquat solution (positive control, PC), or fed the basal diet supplemented with 0·3 mg Se/kg as (3) sodium selenite (SS), (4) soyabean protein-chelated Se (SC) or (5) selenised yeast (SY) and intraperitoneally injected with diquat. Pigs were fed the experimental diets for 17 d and injected with diquat at 10 mg/kg body weight or saline on the 11th day of the study (day 0 post-injection (PI)). Diquat exposure induced acute stress and innate immune activation (P < 0·05) at 6 h PI and compromised (P < 0·05) plasma glutathione peroxidase activity on day 2 PI, which was accompanied by an increase in plasma malondialdehyde at 6 h and day 2 PI (P < 0·10). Organic Se, particularly SY, enhanced (P < 0·05) endogenous antioxidant activity in various aspects compared with the PC group. The growth rate and feed intake from day 0 to day 7 PI were significantly lower in the PC, SS and SC groups than the NC group (P < 0·05). Untargeted metabolomics analysis revealed that twenty-two hepatic metabolites (false discovery rate < 0·15) associated with lipid and cellular antioxidant metabolism were altered by diquat. SY restored hepatic metabolic profiles in some but not all samples.

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“…Studies with other antioxidants, i.e. dietary selenium, also did not detect differences in ME and nutrient retention coefficients Woods et al, 2020b). As ME is a measurement of the available energy in carbohydrates, fats and proteins, it is expected that dietary antioxidants would not greatly impact the ME status.…”

Section: Dietary Amen and Nutrient Retentionmentioning

confidence: 90%

Feeding dihydroquercetin and vitamin E to broiler chickens reared at standard and high ambient temperatures

Pirgozliev

Westbrook

Woods

et al. 2020

Preprint

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The use of natural antioxidants, in particular polyphenols such as dihydroquercetin (DHQ), in animal nutrition have recently increased in popularity. This may partly be due to the risk of increased incidences of heat stress associated with raising livestock in warmer ambient temperatures, facilitated by global warming, reducing antioxidant capacity. The current research demonstrates the effect of dietary DHQ, vitamin E and standard or high ambient temperatures on growth performance, energy and nutrient metabolism, gastrointestinal tract development (GIT), jejunal villus morphometry and antioxidant status in broiler chickens.Each of the four experimental diets were fed to 16 pens of five birds, which were allocated to four rooms (four pens in each room). The temperature in two rooms was maintained at a constant 35 °C (high temperature; HT), and the temperature in the other two rooms was gradually reduced from 27 °C at 7d of age to 22 °C at 20d of age (standard temperature; ST).Rearing birds at HT reduced: feed intake, weight gain, weight of small intestine, total GIT, liver, spleen, heart, villus height, villus surface area and lowered blood glutationperoxidase (GSH-Px). Dietary DHQ increased blood GSH-Px and total antioxidant status, increased heart weight and reduced caecal size. When fed separately, DHQ and vitamin E improved hepatic vitamin E concentration. Feeding vitamin E increased spleen and liver weights. When fed together, DHQ and vitamin E reduced villus height, villus height to crypt depth ratio and villus surface area. Temperature and antioxidants did not affect energy and nutrient metabolism. There were no effects of dietary antioxidants on growth performance of broiler chickens and there were no mortalities. At present it is unclear if feeding antioxidants (in particular DHQ) at different levels, using different dietary formulations, and rearing birds under a range of environmental conditions may be effective at enhancing production performance and bird health in hot ambient climates.

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Effect of feeding different sources of selenium on growth performance and antioxidant status of broilers

Cited by 42 publications

References 52 publications

Comparative assessment of sodium selenite, selenised yeast and nanosized elemental selenium on performance response, immunity and antioxidative function of broiler chickens

Comparative assessment of sodium selenite, selenised yeast and nanosized elemental selenium on performance response, immunity and antioxidative function of broiler chickens

Organic selenium supplement partially alleviated diquat-induced oxidative insults and hepatic metabolic stress in nursery pigs

Feeding dihydroquercetin and vitamin E to broiler chickens reared at standard and high ambient temperatures

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