scholarly journals Effects of barley-bound organic selenium compared with inorganic selenite on selenium concentration and structure of tissues in pig

1984 ◽  
Vol 56 (1) ◽  
pp. 61-72
Author(s):  
P. Kurkela ◽  
E. Kääntee
Keyword(s):  
Sodium Selenite ◽  
Selenium Concentration ◽  
Growing Pigs ◽  
Selenium Level ◽  
Histological Structure ◽  
Muscle Dystrophy ◽  
Pork Production ◽  
Organic Selenium ◽  
Tissue Selenium ◽  
Porcine Tissues

A study was made of the effects of barley feeds containing varying levels of natural grain selenium derived from fertilizer and of the effects of sodium selenite on selenium concentrations in the tissues of growing pigs and on the histological structure of myocardium and longissimus muscle. The results indicated that organic grain selenium affects the selenium levels of porcine tissues significantly more than sodium selenite supplementation of the same amount. The organic selenium concentrations of feed and organs were found to be linearly correlated. Spleen, lung and heart were the most reliable indicators of tissue selenium level in pigs. The selenium concentration of muscles of pigs fed on naturally seleniferous feed (270 µg Se/kg DM) was at the internationally level (500 µg Se/kg DM in meat), whereas the same amount of selenite in feed increased the selenium level of muscle only slightly (to 200/µg Se/kg DM). The histological structures of heart and muscle of pigs fed on naturally seleniferous feed were normal, whereas in the selenite group there were signs of muscle dystrophy when the selenium level was below 200 µg Se/kg DM. In addition, the pigs given selenite were subsequently placed in a lower, fat-containing carcass class. Feed with a natural organic selenium level of 150—200 µg Se/kg DM is preferred to selenite selenium supplement in pork production.

scholarly journals Effects of Dietary Selenium Source and Storage on Internal Quality of Eggs

2009 ◽  
Vol 78 (2) ◽  
pp. 219-222 ◽  
Author(s):  
Gordana Kralik ◽  
Zlata Gajčević ◽  
Pavel Suchý ◽  
Eva Straková ◽  
Danica Hanžek
Keyword(s):  
Sodium Selenite ◽  
Laying Hens ◽  
Selenium Concentration ◽  
Internal Quality ◽  
Control Group ◽  
Limiting Factor ◽  
Organic Selenium ◽  
Inorganic Selenium ◽  
And Storage

A 4-week experiment was carried out on 360 laying hens of the Hy Line Brown hybrid. Laying hens were divided into three groups (C, E1 and E2) with 120 hens in each group and kept in 24 cages. Hens were fed layer diets containing 18% of crude protein and 11.60 MJ ME. Hens in the control group C were fed diets that contained 0.2 mg/kg of inorganic selenium (sodium selenite). Experimental groups E1 and E2 were given diets with increased concentrations of selenium as follows: E1 = 0.4 mg/kg of selenium (sodium selenite), E2 = 0.4 mg/kg of organic selenium (Sel-Plex). Selenium concentration in diets affected significantly the content of selenium in albumen (P < 0.001) and yolk (P < 0.05). The highest concentration of selenium was determined in albumen and yolk of eggs produced in group E2 (345 ng/g and 783 ng/g, respectively), then in eggs of group E1 (230 ng/g and 757 ng/g, respectively), and group C had the lowest concentration of selenium in albumen and yolk (181 ng/g and 573 ng/g, respectively). After 28 days of storage at 4 °C, the eggs containing organic selenium had more freshness (VN: C = 32.9, E1 = 2.60, E2 = 2.11). It was concluded that higher concentration of organic selenium in eggs was a limiting factor in metabolic processes, which positively affected the indicators of egg freshness.

scholarly journals Influence of organic selenium on histological structure of muscle and qualities of pork meat

2008 ◽  
Vol 24 (1-2) ◽  
pp. 109-116 ◽  
Author(s):  
B. Bobcek ◽  
V. Kulísek ◽  
S. Pavlicová ◽  
J. Mrázová
Keyword(s):  
Selenium Concentration ◽  
Biceps Femoris ◽  
Control Group ◽  
Histological Structure ◽  
Interstitial Tissue ◽  
Health State ◽  
Average Thickness ◽  
Triceps Brachii ◽  
Organic Selenium ◽  
Experimental Group

Selenium is one of the most important mineral trace elements, its deficiency has marked effect to utility and health state of animals, and also to health state of humans. Incorporation of Se to muscle tissue depends on dietary level and on selenium form. When we use organic form of selenium, the increase of selenium concentration in muscles is linear. This is important for improvement of pork quality. We compared the influence of selenium (Se) in experimental group with control group of pigs in our experiment. Differences in body weight weren't statistically significant in both groups. The thickness of neck and thickness of spine part was higher in control group. The thickness of fat cells was higher in experimental group in both muscles (39,17 ?m, alternatively 36,35 ?m, P < 0,05). The presence of interstitial tissue in percentage was statistical significant and it was higher in experimental group (3,70 %, alternatively 3,41 %).The average thickness of muscular fibres in muscle triceps brachii /MTB/, muscle longissimus dorsi /MLD/ and muscle biceps femoris /MBF/ was significantlly higher at control group (P < 0,05). The average thickness of muscular fibres was dominant both groups. The lowest thickness of muscular fibres was in muscle triceps brachii.

scholarly journals Influence of Dietary Sodium Selenite on Tissue Selenium Levels of Growing Pigs

1982 ◽  
Vol 23 (3) ◽  
pp. 361-367 ◽  
Author(s):  
Knut Moksnes ◽  
Sverre Tollersrud ◽  
Hans Jørgen Larsen
Keyword(s):  
Sodium Selenite ◽  
Growing Pigs ◽  
Dietary Sodium ◽  
Tissue Selenium

Exploring the effect of selenium forms on final body weight, slaughtercharacteristics and tissue selenium concentration in Aseel cockerels

2016 ◽  
Author(s):  
Waseem Muhammad Zia ◽  
Anjum Khalique ◽  
Saima Naveed ◽  
Jibran Hussain ◽  
Imran Muhammad ◽  
...  
Keyword(s):  
Body Weight ◽  
Sodium Selenite ◽  
Control Diet ◽  
Selenium Concentration ◽  
Control Group ◽  
Final Body Weight ◽  
Treatment Groups ◽  
Group A ◽  
Tissue Selenium ◽  
Group B

A study to investigate the influence of selenium on final body weight and slaughter traits of Aseel was conducted. Three-weeks-old 120 cockerels from Lakha, Mushki, Peshaweri and Mianwali varieties of Aseel were randomly selected and distributed into four groups, 30 cockerels each, subdivided into 3 treatment groups A, B (experimental groups), and C (control group) with 10 cockerels in each treatment. Birds were assigned three experimental diets. The diet for the birds of group A incorporated 0.3 mg/kg Se-enriched yeast and group B included 0.3 mg/kg sodium selenite, while C was fed the diet without Se (control diet). Final body weight, dressed weight, dressing%, eviscerated weight, eviscerated%; chest, thigh and giblets weight; selenium content in chest and thigh in Se-yeast fed birds were significantly increased than those got sodium selenite or control diet. The study concluded that Se-enriched yeast is more effective in improving body weight and slaughtering characteristics of Aseel.

scholarly journals Effects of Bacterial Organic Selenium, Selenium Yeast and Sodium Selenite on Antioxidant Enzymes Activity, Serum Biochemical Parameters, and Selenium Concentration in Lohman Brown-Classic Hens

2021 ◽  
Author(s):  
A. I. Muhammad ◽  
A. M. Dalia ◽  
T. C. Loh ◽  
H. Akit ◽  
A. A. Samsudin
Keyword(s):  
Enzyme Activity ◽  
Antioxidant Enzyme ◽  
Sodium Selenite ◽  
Selenium Concentration ◽  
Egg Yolk ◽  
Antioxidant Enzyme Activity ◽  
Selenium Yeast ◽  
Organic Selenium ◽  
Serum Biochemical ◽  
Biochemical Profiles

Abstract This study compares the effects of sodium selenite, selenium yeast, and enriched bacterial organic selenium protein on antioxidant enzyme activity, serum biochemical profiles, and egg yolk, serum, and tissue selenium concentration in laying hens. In a 112-d experiment, 144 Lohman Brown Classic hens, 23-wks old were divided into four equal groups, each has six replicates. They were assigned to 4 treatments: 1) a basal diet (Con), 2) Con plus 0.3 mg/kg feed sodium selenite (SS); 3) Con plus 0.3 mg/kg feed Se-yeast (SY): 4) Con plus 0.3 mg/kg feed bacterial enriched organic Se protein (ADS18) from Stenotrophomonas maltophilia bacteria. On d 116, hens were euthanized (slaughtered) to obtain blood (serum), liver organ, and breast tissue to measure antioxidant enzyme activity, biochemical profiles, and selenium concentration. The results show that antioxidant enzyme activity of hens was increased when fed bacterial organic Se (ADS18), resulting in a significant (P < 0.05) increase in serum GSH-Px, SOD, and CAT activity compared to other treatment groups. However, ADS18 and SY supplementation increase (P < 0.05) hepatic TAC, GSH-Px, and CAT activity, unlike the SS and Con group. Similarly, dietary Se treatment reduced total cholesterol and serum triglycerides concentrations significantly (P < 0.05) compared to the Con group. At 16 and 18 weeks, selenium concentration in hen egg yolks supplemented with dietary Se was higher (P < 0.05) than in Con, with similar patterns in breast tissue and serum. Supplementation with bacterial organic Se (ADS18) improved antioxidant enzyme activity, decreased total serum cholesterol and serum lipids, and increased Se deposition in egg yolk, tissue, and serum. Hence, organic Se may be considered a viable source of Se in laying hens.

Cultivation and Harvesting of Selenium-Enriched Ganoderma lingzhi and Spent Medium Using Kudzu Vine as Substrate

2019 ◽  
Vol 18 (2) ◽  
pp. 152-157
Author(s):  
Zeng Xianlu ◽  
Han Fei ◽  
Zhong Yanmei
Keyword(s):  
Growth Medium ◽  
Wheat Bran ◽  
Fruiting Body ◽  
Sodium Selenite ◽  
Human Consumption ◽  
Growth Substrate ◽  
Organic Selenium ◽  
Significant Difference ◽  
Ganoderma Lingzhi ◽  
Run Speed

In order to harvest selenium-enriched fruiting body and spores of Ganoderma lingzhi and spent medium, G. lingzhi was cultivated in kudzu vine as substrate and the bio-transformation of selenite was evaluated. The growth medium consisted of Kudzu vine supplemented with 20% wheat bran or sawdust or none. The growth medium was supplemented with 0, 10, 20, 30, and 50 mg/kg of sodium selenite. We found a significant difference in spawn run speed, fruiting body and spore yields when Kudzu vine was supplemented with wheat bran or sawdust. However, when whole-kudzu vine was used alone as substrate, it resulted in a significantly lower spawn run speed, fruiting body, and spore yields compared with kudzu vine + sawdust substrate and kudzu vine + wheat bran substrate. The selenium content in fruiting body and spores increased with increasing sodium selenite supplementation and approximately equaled half of the selenium in the substrate. No selenite was detected in both the fruiting body and spores. However, in the spent medium when sodium selenite was supplemented at 10, 20, 30, 50 mg/kg, the residual selenite concentration decreased to 0.45, 0.72, 1.29, and 1.95 mg/kg, respectively, suggesting a higher selenite transformation (92.27–93.57%). In conclusion, if Ganoderma fruiting body and spores were to be harvested for human consumption, approximately 50 mg/kg selenite should be added to the growth substrate. On the other hand, if the spent medium was to be used as an organic selenium source, the optimal sodium selenite supplementation level would be 10 mg/kg.

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