Effect of dietary sodium selenite, Se-enriched yeast and Se-enriched Chlorella on egg Se concentration, physical parameters of eggs and laying hen production

Skřivan, M.; Šimáně, J.; Dlouhá, G.; Doucha, J.

doi:10.17221/3924-cjas

Cited by 84 publications

(67 citation statements)

References 15 publications

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“…Experimental groups with Se-yeast (at the dose of 0.4 mg/kg and 0.9 mg/kg DM) differed significantly from the control group (P<0.05). Similar increase of eggs weight after administration of selenium, especially in the form of Se-yeast, was reported also by other authors [7,11]. Beneficial effect of inorganic selenium with the supplement of vitamin E on the egg weight was reported [9].…”

Section: Resultssupporting

confidence: 83%

“…Organic selenium increases egg production, improves fertility, antioxidant status, accelerating of feathers growth after feather loosing of layers at saddle and back sections [4] and has positive influence on storage ability of eggs. Selenium concentration in eggs according to many authors was markedly higher in groups with organic selenium [7,14,11,12]. In experiment of [2] human volunteers receiving multiple-enriched eggs improved the blood concentration of omega-3 fatty acids, HDL cholesterol, LDL cholesterol and triglycerides.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Dietary Sodium Selenite and Se-Enriched Yeast on Egg-Shell Qualitative Parameters of Laying Hens Eggs

Arpášová¹,

Haščík²,

Hanová³

et al. 2010

JCEA

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The experiment was designed to investigate the effects of feed supplementation with selenite or selenized yeast on eggs quality of laying hens. Hens of laying breed Isabrown were randomly divided at the day of hatching into 4 groups (n=12) and fed ad libitum for 9 months on diets which differed only in amounts or forms of selenium supplemented. Hens were fed from 1 st day by standard feed mixture. Control group get only native dose of selenium (0.1 mg/kg) naturally presented in feed mixtures. First experimental group get selenium addition 0.4 mg/kg in a form of sodium selenite, second one the same dose of 0.4 mg/kg but in organic form of Se-yeast. The diet for the fourth group was supplemented with Se-yeast at Se dose 0.9 mg/kg DM. Kurčatá znáškového hybrida Isabrown boli náhodne rozdelené do 4 skupín (n = 12) a od 1.dňa života kŕmené po dobu 9 mesiacov kŕmnou zmesou s prídavkami rozdielnych množstiev alebo foriem Se. Sliepky boli kŕmené štandardnými kompletnými kŕmnymi zmesami pre odchov a neskôr v chove zmesou pre vajcia produkujúce nosnice ad libitum. Sliepky v kontrolnej skupine prijímali kompletnú kŕmnu zmes s natívnou dávkou Se, v prvej experimentálnej skupine bol prídavok Se vo forme seleničitanu sodného v množstve 0,4 mg/kg sušiny, v druhej experimentálnej skupine bola zmes obohatená o Se v dávke 0,4 mg/kg sušiny, ale vo forme organickým Se obohateného kvasničného extraktu, v tretej experimentálnej skupine dostávali sliepky zmes obohatenú o selenizované kvasnice v dávke 0,9 mg/kg sušiny, teda nad limit povolený EÚ. V pokuse boli sledované ukazovatele: hmotnosť vajec (g), merná hmotnosť vajec (g/cm 3 ), hmotnosť škrupiny (g), merná hmotnosť škrupiny (g/cm 3 ), percentuálny podiel škrupiny (%), pevnosť škrupiny (N/cm 2 ) a priemerná hrúbka škrupiny (µm). Pri hmotnosti vajca sa štatisticky významne (p<0,05) prejavil priaznivý vplyv oboch dávok organickej formy Se. Štatisticky nižšia pevnosť škrupiny bola v experimentálnych skupinách s prídavkom Se v oboch formách, pri priemernej hrúbke škrupiny boli rozdiely medzi jednotlivými skupinami štatisticky nevýznamné (p>0,05). V súčasnosti sa venuje zvýšená pozornosť vplyvu výživy na zdravie v súvislosti s príjmom antioxidantov zabraňujúcich tvorbe škodlivých oxidačných procesov v organizme, ako sú vitamíny (A, E, C), fenolové zlúčeniny, taníny, flavonoidy aj množstvo ďalších rastlinných antioxidantov a esenciálnych stopových prvkov ako zinok (Zn), meď (Cu), selén (Se), ktoré sú súčasťou antioxidačných enzýmov. Vzhľadom na zákaz antibiotík a chemoterapeutík pri výrobe hydinového mäsa a vajec, zvyšuje sa potreba hľadať vhodnú a hlavne bezpečnú alternatívu. Preto najmä výživa musí byť tou zložkou, ktorá svojím množstvom, kvalitou a koncentráciou všetkých potrebných zložiek pri ich vysokej utilizácii bude zabezpečovať optimálny prejav úžitkových vlastností. Jednou z možností je suplementácia kŕmnych zmesí organickými formami stopových prvkov. V posledných rokoch sa značne používal ako prídavok do kŕmnych zmesí hospodárskych zvierat práve anorganický Se. V tejt...

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Section: Resultssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Effect of Dietary Sodium Selenite and Se-Enriched Yeast on Egg-Shell Qualitative Parameters of Laying Hens Eggs

Arpášová¹,

Haščík²,

Hanová³

et al. 2010

JCEA

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“…Dietary supplementation of Se influences quality traits of poultry products (Skřivan et al, 2006;Arpášová et al, 2009). Se is a structural component of glutathione peroxidase (GSH-Px, E.C.1.11.1.9), which catalyzes the reduction of hydrogen peroxide and organic hydroperoxides, thus protecting the cells from oxidative damage.…”

mentioning

confidence: 99%

Selenium and α-tocopherol content in eggs produced by hens that were fed diets supplemented with selenomethionine, sodium selenite and vitamin E

Skřivan¹,

Bubancová²,

Marounek³

et al. 2010

CZECH J ANIM SCI

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AbStrAct:The effect of supplementing dietary selenium (Se) and vitamin E was investigated in 330 24-week-old laying hens. The hens were fed a basal diet containing Se and α-tocopherol at 0.11 and 26 mg/kg, respectively, or a diet supplemented with Se at 0.3 mg/kg and vitamin E between 0 and 625 mg/kg. Se was supplied as Se-methionine or sodium selenite. The eggs were collected for analysis during the third, seventh and eleventh weeks of the experiment. Supplementation of either form of Se significantly increased the Se concentration in egg yolks and whites, with a more pronounced effect caused by Se-methionine. The egg yolk α-tocopherol concentration paralleled the dietary α-tocopherol concentration. At a high dietary α-tocopherol concentration (632 mg/kg), the retinol content in egg yolks from hens fed Se-methionine increased significantly. Supplementation of Se-methionine significantly increased the α-tocopherol content in the eggs in the third and seventh weeks of the experiment. A moderate decrease in yolk cholesterol was observed in hens fed Se-methionine and α-tocopherol at 119 mg/kg. The concentration of products from lipid peroxidation (thiobarbituric acid-reactive substances, TBARS) in egg yolks increased marginally during the refrigerated storage of the eggs for 2 weeks. The effect of dietary vitamin E on TBARS formation was generally small, although a more significant effect was observed at the highest dose tested.

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“…The results of the study of Utterback et al (2005) indicated that the use of Se-yeast in laying hen diets was very effective for increasing the Se content of eggs. Skřivan et al (2006) investigated the effect of dietary sodium selenite, Se-enriched yeast and Se-enriched alga Chlorella on Se concentration in eggs, physical parameters of eggs and laying hen production. They reported higher utilization of the organic form of selenium from Se-enriched yeast and Se-enriched alga Chlorella in laying hens compared to the inorganic form of selenium (Na 2 SeO 3 ).…”

mentioning

confidence: 99%

The effect of selenium source on the performance and meat quality of broiler chickens

Sevcikova¹,

Skřivan²,

Dlouhá³

et al. 2006

Czech J. Anim. Sci.

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100

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ABSTRACT:The effect of dietary supplementation of selenium in an organic form on performance, carcass traits and selenium content in tissues of broiler cockerels Ross 308 was studied. The soya-wheat-maize diet contained 50 mg vitamin E/kg. The experiment was conducted on 810 straight-run broiler cockerels randomly divided into 3 groups: group I -control, without selenium supplement; experimental group: II -0.3 mg Se/kg, Se-enriched yeast was applied as a Se source; III -0.3 mg Se/kg, Se-enriched alga Chlorella as a Se source. The broiler chickens were slaughtered at 42 days of age. In performance traits higher (P ≤ 0.05) live weight of broiler chickens was recorded in the experimental groups (II -2 430.6 g and III -2 425.2 g). There were no significant differences between the groups in feed conversion and mortality. Se-enriched alga had the best feed conversion, and selenium supplementation slightly increased mortality in both experimental groups. No significant differences between the groups were found out in carcass traits and dressing percentage. The content of selenium in breast and thigh muscle, feathers and excrements increased (P ≤ 0.05) in both experimental groups compared to the control group. Higher values in breast and thigh muscle and in feathers were measured in the group supplemented with selenium from Se-enriched yeast, also in comparison with the group supplemented with selenium from Se-enriched alga Chlorella. The broiler chickens receiving Chlorella had a higher (P ≤ 0.05) selenium content in excrements compared to the group with Se-enriched yeast. The selenium concentration in liver was higher (P ≤ 0.05) in both experimental groups compared to the control. The supplement of selenium from Se-yeast and Chlorella in the diet for broiler chickens increased the microelement concentration in muscle.

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Effect of dietary sodium selenite, Se-enriched yeast and Se-enriched Chlorella on egg Se concentration, physical parameters of eggs and laying hen production

Cited by 84 publications

References 15 publications

Effect of Dietary Sodium Selenite and Se-Enriched Yeast on Egg-Shell Qualitative Parameters of Laying Hens Eggs

Effect of Dietary Sodium Selenite and Se-Enriched Yeast on Egg-Shell Qualitative Parameters of Laying Hens Eggs

Selenium and α-tocopherol content in eggs produced by hens that were fed diets supplemented with selenomethionine, sodium selenite and vitamin E

The effect of selenium source on the performance and meat quality of broiler chickens

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