Selenium enrichment of table eggs

Bennett, David D.; Cheng, Ke

doi:10.3382/ps.2009-00571

Cited by 39 publications

(25 citation statements)

References 18 publications

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“…The laying performances observed in the present study are in contrast with the results reported by Bennett and Cheng (2010); these Authors did not observe any effect of the Se diet content on hens egg production, despite the lowest Se diet level used was 0.31 and the highest 5.43 mg/kg and the reason of that might be due to the reduced numerousness of the analysed samples. Also for laying hens Scheideler et al (2010) refer about an egg production increment only when the Se content rose from 0.5 to 0.75 mg/kg of diet; in this case, the selenium to vitamin E ratio was not kept constant and probably it caused a decrease of absorption of vitamin E and the observed reduction of a-tocopherol in the yolk.…”

Section: Discussioncontrasting

confidence: 57%

Selenium and vitamin E diet inclusion for optimal reproduction performances of red-legged partridge (Alectoris rufa)

Ding

Kandır

Pirone

et al. 2016

Italian Journal of Animal Science

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To date there is little knowledge regarding the requirements of Se and vitamin E of red-legged partridges (Alectoris rufa). For this reason, in the present study four different Se and vitamin E diet inclusions have been tested. A total of 360 parents were used and randomly divided into four groups; diets were supplemented with 0.2, 0.3, 0.4 and 0.5 mg/kg of Se and Se to vitamin E ratio was kept approximately constant in all groups. The effects of the diets on parents' reproduction performances and on embryos visceral organs were investigated. The best laying rate was reached with 0.4 mg/kg Se diet supplementation while the best hatching rate was reached with 0.3 mg/kg (p < 0.05). The relative weight of duodenum, jejunum and ileum in embryo was higher (p < 0.05) in the groups fed 0.4 and 0.5 mg/kg Se compared to the other groups. Significant differences (p < 0.05) were also observed for jejunum and ileum length as animals were fed the highest Se to vitamin E ratios. The number and height of villi and goblet cells density of jejunum were higher (p < 0.05) in the groups fed 0.4 and 0.5 mg/kg of Se than in the group fed 0.2 mg/ kg. Epithelial buds density in the Bursa of Fabricius of embryos was significantly higher (p < 0.05) for 0.4 and 0.5 mg/kg Se supplemented groups than in the others. In conclusion our results suggest that 0.4 mg/kg of selenium and 100 mg/kg vitamin E should be included in the parents' diet in order to optimise red-legged partridges performances. ARTICLE HISTORY

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Section: Discussioncontrasting

confidence: 57%

Selenium and vitamin E diet inclusion for optimal reproduction performances of red-legged partridge (Alectoris rufa)

Ding

Kandır

Pirone

et al. 2016

Italian Journal of Animal Science

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“…Se-enriched eggs have remained to be a virtuous source of Se for humans (Surai et al 2007). Bennett and Cheng (2010) demonstrated that Se supplementation is a practical way of producing Se-enriched eggs for the consumers. According to NRC (1994), selenium requirement for laying hens ranges from 0.05 to 0.08 ppm, however, AAFCO (2003) recommended 0.3 ppm maximum allowable level.…”

Section: Introductionmentioning

confidence: 99%

Impact of selenium supplementation on productive performance and egg selenium status in native Aseel chicken

Zia

Khalique

Naveed

et al. 2016

Italian Journal of Animal Science

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A study to examine the impact of selenium forms on productive traits and egg selenium deposition in Aseel was conducted. A total of 96 selenium-treated 21-week-aged Aseel birds were used, 84 females (1726.25 ± 121.65 g) and 12 males (1973.17 ± 182.84 g) from Lakha, Mushki, Peshaweri and Mianwali varieties. Birds were distributed into four experimental groups (21 females and 3 males/variety), further subdivided into three treatment groups A, B and C with 8 birds each, 7 females and 1 male (4 varieties Â3 Se treatments Â8 birds/treatment). Group A and B were the experimental while, C was a control group. Ration for the birds of group A included 0.3 ppm Se-enriched yeast, group B with 0.3 ppm sodium selenite, while, group C received a basal ration containing no selenium. Experimental birds were maintained separately in battery cages from 22 to 42 weeks. The pullets received Se-enriched yeast (organic source of selenium) supplemented ration gained the sexual maturity earlier (168.61 ± 0.64 d) and represented increased (p .05) body weight (1973.56 ± 3.43 g); egg production (38.17 ± 1.27%); egg mass (112.52 ± 2.63 g); FCR/dozen eggs (3.26 ± 0.06); FCR/kg egg mass (6.77 ± 0.23) and the selenium contents in the whole egg (11.70 ± 0.01 lg), in egg yolk (8.31 ± 0.01 lg) and in egg albumen (3.33 ± 0.01 lg). It is concluded that Se-enriched yeast is more potent than sodium selenite and is a key supplement used to improve production performance and egg-selenium status of Aseel. ARTICLE HISTORY

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“…According to Pappas et al (2005) and Gajcevic et al (2009), selenium, supplemented in diets for laying birds, is able to keep good values of Haugh unit for commercial eggs when stored. In addition, selenium can be incorporated into eggs through dietary supplementation of egg-laying hens, especially when supplied in the organic form, which is more efficient than the inorganic form (Payne et al 2005;Utterback et al, 2005, Bennett & Cheng, 2010. Breeding birds fed diets supplemented with organic selenium provides eggs with increased concentration of that mineral (Osman et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Egg quality during storage and deposition of minerals in eggs from quails fed diets supplemented with organic selenium, zinc and manganese

et al. 2011

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-Three experiments with Japanese laying quails were performed aiming to assess the effect of supplementation with minerals in organic form on the egg quality during storage and the deposition of minerals in eggs. The assessments of each experiment were related to one mineral, thus, experiment 1 assessed the supplementation with selenium in 0.35-, 0.70-and 1.05-mg/kg levels of feed; experiment 2, the supplementation with zinc in 50-, 100-and 150-mg/kg levels of feed; and experiment 3, the supplementation of manganese with 60-; 120-and 180-mg/kg levels of feed. All diets were evaluated compared with a control diet without mineral supplementation. Birds were distributed in a completely randomized experimental design, with eight birds per plot and six replicates per treatment. Fifty-five days after the beginning of diets, the yolks of three eggs from each plot were collected for selenium, zinc and manganese quantification, whereas the albumens of three eggs from each parcel were collected for analysis of selenium concentration. Eggs were collected at the last days of the experimental period from each experiment, to be stored at room temperature (28±2 °C) and refrigeration (4 °C) during different periods (0, 10, 20 and 30 days), except for experiment 3, in which eggs were stored at 0, 10 and 20 days. Percentages of albumen and yolk, yolk index, Haugh unit and moisture loss of eggs were evaluated. The supplementation with selenium is able to maintain the egg yolk index unchanged over the storage periods; however, supplementation with zinc and manganese is not effective to keep the quality of stored eggs. Supplementation with selenium and manganese is effective to increase the concentration of these minerals at 328.66% in the albumen and at 74.47% in the yolk, respectively. The different levels of zinc do not change the egg composition.

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Selenium enrichment of table eggs

Cited by 39 publications

References 18 publications

Selenium and vitamin E diet inclusion for optimal reproduction performances of red-legged partridge (Alectoris rufa)

Selenium and vitamin E diet inclusion for optimal reproduction performances of red-legged partridge (Alectoris rufa)

Impact of selenium supplementation on productive performance and egg selenium status in native Aseel chicken

Egg quality during storage and deposition of minerals in eggs from quails fed diets supplemented with organic selenium, zinc and manganese

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