scholarly journals Transport of feed selenium to different tissues of bulls

1991 ◽  
Vol 66 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Päivi Ekholm ◽  
Pertti Varo ◽  
Pentti Aspila ◽  
Pekka Koivistoinen ◽  
Liisa Syrjälä-Qvist
Keyword(s):  
Sodium Selenite ◽  
Dry Matter ◽  
Selenium Concentration ◽  
Absorption Method ◽  
Internal Organs ◽  
Tissue Samples ◽  
Different Types ◽  
Basic Level ◽  
Vitamin E Status ◽  
Different Tissues

The effects of different types of Se supplementation on the selenium concentration of beef, bovine internal organs and some other tissues were studied. The animals (thirty-two bulls) were kept in four dietary groups from birth until to the age of 13–14 months, and fed on rations containing either 0.03 mg Se/kg (basic level in local feeds), 0.25 mg inorganic Se supplemented as sodium selenite, or 0.25 or 0.4 mg/kg plant Se in dry matter from feed produced by spraying with sodium selenite. Samples of four muscles and ten other tissues and organs were taken at slaughter. Se was determined by an electrothermal atomic absorption method. Se supplementation significantly increased the Se concentration of all tissue samples. The maximum response was caused by the diet containing 0.40 mg/kg plant Se. In muscles, this diet raised the Se concentration by a factor of 10–12. In other samples, the increment was 1.5–7.5 fold, depending on the type of tissue. In general, plant Se raised the Se level more effectively than inorganic Se. Se supplementation did not affect the vitamin E status of muscle tissue.

scholarly journals The effect of dietary selenium sources and levels on performance, selenium content in muscle and glutathione peroxidase activity in broiler chickens

2010 ◽  
Vol 55 (No. 12) ◽  
pp. 572-578 ◽  
Author(s):  
J. Heindl ◽  
Z. Ledvinka ◽  
M. Englmaierová ◽  
L. Zita ◽  
E. Tůmová
Keyword(s):  
Body Weight ◽  
Glutathione Peroxidase ◽  
Broiler Chickens ◽  
Sodium Selenite ◽  
Dry Matter ◽  
Growth Traits ◽  
Dietary Treatment ◽  
Selenium Concentration ◽  
Selenium Content ◽  
Breast Meat

The study examined the effect of dietary supplements of sodium selenite (SS), selenium-enriched yeast (Sel-Plex®, SP) and selenium-enriched alga Chlorella (SCH) on growth traits, carcass analysis, selenium content in breast meat, glutathione peroxidase (GSH-Px) activity in breast and thigh meat and liver of chickens. The experiment was realized with seven hundred thirty-five cockerels Ross 308 randomly divided into 7 dietary treatments with 3 replications in each treatment. Chickens were fed a diet supplemented with 0 (control), 0.15 or 0.30 mg of selenium/kg in the form of sodium selenite (SS), Sel-Plex® (SP) and selenium-enriched alga Chlorella (SCH). Selenium addition influenced body weight at 21 (P ≤ 0.001) and 35 (P ≤ 0.05) days of age. Significantly higher body weight at 35 days of age was determined in chickens receiving 0.15 mg of selenium from SP (2 122 g) and 0.3 mg of selenium from SCH (2 116 g) contrary to dietary treatment with a lower level of selenium from SCH (2 010 g) per kg of feed. The selenium content in breast muscle was increased (P ≤ 0.001) by both the lower and higher selenium concentration in the form of SP (0.6 and 0.85 mg/kg dry matter) and SCH (0.6 and 0.82 mg/kg dry matter) in comparison with the control (0.31 mg/kg dry matter). A significant increase (P ≤ 0.001) was ascertained even in SS treatments, but no significant differences were found between both levels. The selenium source and level, including SS, significantly (P ≤ 0.001) influenced the GSH-Px activity in breast and thigh meat.  

scholarly journals Meat quality and fatty acid profile of the musculus longissimus lumborum in Czech Fleckvieh, Charolais and Charolais × Czech Fleckvieh bulls fed different types of silages

2010 ◽  
Vol 55 (No. 11) ◽  
pp. 479-487 ◽  
Author(s):  
L. Bartoň ◽  
D. Bureš ◽  
V. Kudrna
Keyword(s):  
Fatty Acid ◽  
Meat Quality ◽  
Fatty Acid Profile ◽  
Dry Matter ◽  
Intramuscular Fat ◽  
Quality Parameters ◽  
Dietary Energy ◽  
Maize Silage ◽  
Different Types ◽  
Longissimus Lumborum

The effects of breed and diet containing different types of silages on meat quality parameters and fatty acid profile of m. longissimus lumborum (MLL) were evaluated in a total of 30 Czech Fleckvieh (CF), Charolais (CH) and Charolais × Czech Fleckvieh (CH × CF) bulls. The animals were fed two mixed diets: MS (based on maize silage) and LCS (based on legume-cereal mixture silage and lucerne silages) with different concentrations of dietary energy and fatty acids. The MLL from CH bulls had the lowest content of dry matter (P < 0.01), less protein (P < 0.01) and lighter meat (P < 0.01) compared to the CF. The extensive LCS diet reduced dry matter (P < 0.01) and intramuscular fat (P < 0.01) and increased the content of hydroxyproline (P < 0.05). The CH bulls exhibited higher PUFA n-3 (P < 0.05) and lower MUFA (P < 0.05) compared to the CF, with the CH × CF being intermediate. The LCS diet enhanced the proportions of PUFA (P < 0.05) and PUFA n-3 (P < 0.001) and reduced MUFA (P < 0.001). In conclusion, both breed and diet affected the meat quality and fatty acid profile of the intramuscular fat of the bulls. The replacement of maize silage with the legume-cereal mixture and lucerne silages in the diet reduced the concentration of intramuscular fat and improved its fatty acid profile from the human nutrition perspective.

Effect of selenium supplementation on survival, liveweight and wool weight of young sheep on Kangaroo Island, South Australia

1979 ◽  
Vol 19 (101) ◽  
pp. 689 ◽  
Author(s):  
SK Walker ◽  
GP Hall ◽  
DH Smith ◽  
RW Ponzoni ◽  
GJ Judson
Keyword(s):  
Total Dose ◽  
Whole Blood ◽  
Sodium Selenite ◽  
South Australia ◽  
Selenium Concentration ◽  
Mortality Rates ◽  
Selenium Supplementation ◽  
First Year ◽  
Weaning Weight ◽  
Fleece Weight

The responses in liveweight, wool weight and survival, to selenium supplementation, were studied in young sheep from weaning to yearling age. The experiment was conducted over three years. In the first year, one sodium selenite supplementation rate was used (total dose 46.5 mg). During the following two years two supplementation rates were administered (total doses 46.5 mg and 93 mg). Mean concentrations of selenium in whole blood in unsupplemented sheep varied from 0.19-0.56 pmol l-l and from 0.20-0.44 pmol l-1 in the two years in which concentrations were measured. Supplementation, which commenced at lamb marking, increased the selenium concentration in sheep at weaning and thereafter. Selenium supplementation improved the break-of-season weight (P < 0.01) and yearling weight (P < 0.01 ) but not weaning weight (0.05 < P < 0.1 ). Hogget fleece weight was improved (P < 0.01 ) and mortality reduced (P < 0.01) by selenium supplementation. There was a treatment x year interaction in mortality rates (P < 0.01 ). There were no significant differences between the two supplementation rates

scholarly journals The choice of lucerne varieties in the Netherlands.

1953 ◽  
Vol 1 (3) ◽  
pp. 175-185
Author(s):  
W. Scheijgrond
Keyword(s):  
South Africa ◽  
The Netherlands ◽  
Crude Protein ◽  
Dry Matter ◽  
Cold Resistance ◽  
The Other ◽  
Southern Europe ◽  
Different Types ◽  
North And South America ◽  
North And South

Trials were carried out at 2 stations in the Netherlands in the period 1949-51 to compare the amounts of dry matter and crude protein yielded per ha. by 5 different types of lucerne. The Northern French varieties (Du Puits, Flamande Chartain-villiers and Flamande Flandria) gave considerably higher yields of dry matter and protein than Provence or Italian lucerne. A further trial was carried out in the Netherlands in co-operation with O.E.E.C., in which the performances of varieties from Western, Eastern, Central and Southern Europe, North and South America, New Zealand, India and South Africa were compared. The results are tabulated under the following headings: yield in comparative figures, speed of regrowth after winter, earliness of flowering, degree of infestation by grasses and cold-resistance. The Northern French varieties Du Puits, Flamande Flandria, Flamande Chartainvilliers, Flamande Socheville and Flamande C49, gave higher yields of dry matter and crude protein, regrew more rapidly after winter and were less susceptible to infestation by grasses than the other varieties tested. Their cold-resistance was satisfactory. There were no considerable differences in performance between the Northern French varieties tested.-W.J.B. (Abstract retrieved from CAB Abstracts by CABI’s permission)

scholarly journals First evidence of nocardiosis in farmed red drum (Sciaenops ocellatus, Linnaeus) caused by Nocardia seriolae in the Gulf of Mexico

2021 ◽  
Author(s):  
Rodolfo Enrique del Rio-Rodriguez ◽  
Jose Gustavo Ramirez-Paredes ◽  
Sonia Araceli Soto-Rodriguez ◽  
Yechiam Shapira ◽  
Mariana del Jesus Huchin-Cortes ◽  
...  
Keyword(s):  
Current Knowledge ◽  
Red Drum ◽  
Sciaenops Ocellatus ◽  
Internal Organs ◽  
New Host ◽  
Tissue Samples ◽  
Tissue Sections ◽  
Long Rod ◽  
Nocardia Seriolae

ABSTRACTBetween August and December 2013, the offshore cages of a commercial marine farm culturing red drum Sciaenops ocellatus in Campeche Bay were affected by an outbreak of an ulcerative granulomatous disease, reaching 70% cumulative mortality. Thirty-one adults displaying open ulcers on the skin were submitted to our laboratory for diagnosis. Multiple white-yellowish nodules (0.1-0.5 cm in diameter) were present in all internal organs, where the kidney and the spleen were the most severely affected. Histopathological observations of these organs evinced typical granulomatous formations. Gram and Ziehl-Neelsen stains on tissue imprints, bacterial swabs and tissue sections revealed Gram-positive, acid-fast, branching beaded long rod filamentous bacteria. Tissue samples resulted positive for nocardiosis when a Nocardia genus specific nested PCR was used. Definite identification at the species level and taxonomic positioning of the fastidious pathogen was achieved through a specific Nocardia seriolae PCR and by sequencing the gyrB gene of pure isolates. After application of antibiotics during fry production, a posterior follow-up monitoring (from 2014 to 2017) detected mild but recurrent outbreaks of the bacteria with no seasonality pattern. To the extent of our current knowledge, this is the first report of piscine nocardiosis (in a new host -red drum) in Mexico.

scholarly journals Selenium speciation and biological characteristics of selenium-rich Bailing mushroom, Pleurotus tuoliensis

2018 ◽  
pp. 704
Author(s):  
Yajie Zou, Fang Du, Haijun Zhang, Qingxiu Hu
Keyword(s):  
Fruiting Body ◽  
Sodium Selenite ◽  
Selenium Concentration ◽  
Biological Characteristics ◽  
Selenium Speciation ◽  
Fruiting Bodies ◽  
Good Tolerance ◽  
Icp Ms ◽  
Mycelia Growth

Nowadays the study of selenium-rich mushrooms is very popular. In the present study, selenium speciation in fruiting body of Pleurotus tuoliensis was investigated in cultivation substrates with different concentrations of sodium selenite, as well as mycelia growth and mushroom development. The results showed that the P. tuoliensis mycelia appeared good tolerance to selenium at all test concentrations. A selenium concentration of 10 mg/kg promoted fruiting of P. tuoliensis; the fruiting bodies were of good quality and had a low malformation rate. HPLC–ICP-MS determined that organic seleniums enriched in stipes and caps existed mainly in the form of selenoCystine and selenoMethionine at selenium concentrations of 10-100 mg/kg. These findings suggest that P. tuoliensis could be developed as a selenium-rich mushroom product for use as a novel dietary source of bioavailable supplemental selenium.

scholarly journals Renal Tubular Dysgenesis in a Case of Fetus Acardius Amorphus

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
C. Thoeni ◽  
K. Holzer ◽  
J. Leichsenring ◽  
C. Porcel ◽  
B. K. Straub ◽  
...  
Keyword(s):  
Blood Flow ◽  
Smooth Muscle Actin ◽  
Extramedullary Hematopoiesis ◽  
Renal Tubular Dysgenesis ◽  
Internal Organs ◽  
Multiple Gestations ◽  
Different Types ◽  
Inner Organs ◽  
Renal Tubular ◽  
Umbilical Arteries

Fetus acardius amorphus is a rare congenital malformation characterized by the lack of a functional heart, the presence of a bivascular umbilical cord, as well as a developed and organized skeletal system and partially organized inner organs. Fetus acardii mostly occur in multiple gestations. The pathogenesis of this entity is not clarified yet. It has been hypothesized that, although formation of anastomosing vessels between the co-twin and the anomalous embryo as well as reverse directed blood flow within the umbilical arteries of the weaker twin may allow sufficient blood flow to form rudimentary internal organs, it is insufficient to develop a fully functional heart. We had a case of fetus acardius amorphus, where we performed autopsy as well as routine histology assessment to identify different types of tissues. We showed that our fetus acardius amorphus demonstrated histomorphological features of renal tubular dysgenesis, confirmed by lack of proximal tubules, extramedullary hematopoiesis and increased number of smooth muscle actin positive vessels. This is a novel finding and has not been reported previously.

scholarly journals Effect of a long-term peroral supplementation with sodium selenite and selenium lactate-protein complex on selenium status in goats and their kids

2009 ◽  
Vol 54 (No. 7) ◽  
pp. 324-332 ◽  
Author(s):  
L. Misurova ◽  
L. Pavlata ◽  
A. Pechova ◽  
R. Dvorak
Keyword(s):  
Glutathione Peroxidase ◽  
Protein Complex ◽  
Sodium Selenite ◽  
Selenium Concentration ◽  
Selenium Supplementation ◽  
Control Group ◽  
Glutathione Peroxidase Activity ◽  
Significant Difference ◽  
Average Activity

The aim of this study was to evaluate the effect of a long-term peroral selenium supplementation in the form of sodium selenite and selenium lactate-protein complex by comparing selenium concentrations and glutathione peroxidase activity in blood of goats and their kids as well as comparing selenium concentrations in goat colostrums. For the study, a total of 27 clinically healthy pregnant white shorthair goats were used. They were divided to three groups, i.e., the control group (C) without any selenium supplementation, sodium selenite group (E1) and selenium lactate-protein complex group (E2). For four months, experimental goats received 0.43 mg of selenium per animal per day in diet; goats from the control group were given 0.15 mg of selenium per animal per day. At the beginning of the experiment, goats of all groups showed an average selenium concentration of 96 &mu;g/l in whole blood. On the parturition day, samples of first colostrum from goats and heparinized blood from goats and kids were taken. In the control group (C), average blood selenium concentrations of 111.4 ± 33.5 &mu;g/l were observed on the parturition day. In both experimental groups, selenium concentrations were significantly higher (<I>P</I> < 0.05). Average selenium concentration in the sodium selenite group (E1) was 177.2 ± 34.8 &mu;g/l and in the group supplemented with selenium lactate-protein complex (E2) 159.0 ± 28.5 &mu;g/l. Average glutathione peroxidase (GSH-Px) activity in blood of control goats (C) was 581.9 ± 99.2 &mu;kat/l, in group E1 1 154.6 ± 156.2 &mu;kat/l and in group E2 1 011.6 ± 153.6 &mu;kat/l. GSH-Px activity in experimental groups was significantly higher (<I>P</I> < 0.05) as compared with the control group. Average selenium concentrations in colostrum was in the control group 40.1 ± 12.8 &mu;g/l, in E1 99.0 ± 29.9 &mu;g/l and in group E2 79.0 ± 17.7 &mu;g/l. Colostral selenium concentrations in experimental groups were significantly higher (<I>P</I> < 0.05) as compared with the control group. No significant difference in the monitored parameters was found between experimental groups. In kids of control mothers (kC), average selenium concentrations in blood on the parturition day were 62.4 ± 22.9 &mu;g/l; kids of mothers supplemented with sodium selenite (kE1) showed average selenium levels of 100.0 ± 31.2 &mu;g/l, and the average selenium concentration in kids of mothers receiving lactate-protein complex was 83.4 ± 20.1 &mu;g/l (kE2). Average GSH-Px activity in control kids (kC) was 402.1 ± 153.9 &mu;kat/l. Kids from kE1 showed average activity of GSH-Px 806.1 ± 254.9 &mu;kat/l and kids from group kE2 529.9 ± 119.8 &mu;kat/l. Statistically significant difference (<I>P</I> < 0.05) was found only between kC and kE1 which showed significantly higher selenium concentration and GSH-Px activity. The results of this study confirm that both forms of selenium administered in experimental groups (i.e., sodium selenite and selenium lactate-protein complex) had similar biological effect in goats. However, results obtained in kids indicate a better effect of supplementation with sodium selenite.

Intake of selenium and other nutrients in relation to selenium status and productivity of grazing sheep

1982 ◽  
Vol 33 (3) ◽  
pp. 637 ◽  
Author(s):  
RA Hunter ◽  
DW Peter ◽  
MP Quinn ◽  
BD Siebert
Keyword(s):  
Dry Matter ◽  
Seasonal Pattern ◽  
Plasma Concentrations ◽  
Selenium Concentration ◽  
Selenium Status ◽  
Plasma Selenium ◽  
Dry Matter Digestibility ◽  
South West ◽  
Low Selenium ◽  
Plasma Selenium Concentration

The selenium status of the sheep and seasonal fluctuations in the intake of dry matter, digestible dry matter and selenium over a 12-month period were measured in an experiment with 80 ewes and their offspring on annual pasture in the south-west of Western Australia. Forty of the ewes received an intraruminal selenium pellet 1 month prior to lambing in June. At weaning half of the lambs born to ewes in each treatment also received an intraruminal selenium pellet. There was a distinct seasonal pattern in the quality and quantity of pasture ingested. Dry matter digestibility was highest in winter (68.9%), declined during spring and was lowest during summer (32.3 %) when intake of digestible dry matter was not sufficient to maintain the liveweight of weaner sheep. Selenium intake by ewes was highest in winter (64 �g/day), when dry matter (DM) intake was maximum (1348 g/day). The intake of selenium (31 �g/day) and the plasma selenium concentration (7.8 �g/l) of unsupplemented ewes was least in spring when pasture was actively growing and its selenium concentration was declining. Plasma and liver selenium concentrations were least at weaning, both in lambs from unsupplemented ewes (3 �g/l and 0.093 mg/kg DM respectively) and from supplemented ewes (7 �g/l and 0.120 mg/kg DM respectively). Selenium supplementation of ewes resulted in elevated selenium concentrations in the plasma of their lambs up to 8 weeks of age. Plasma concentrations declined thereafter and by weaning, at c. 18 weeks, there was little difference between plasma selenium concentrations of lambs from supplemented and unsupplemented ewes. Despite a low selenium status of unsupplemented weaners, supplementation did not improve growth rate during the summer and autumn, the period when problems of selenium inadequacy have been recorded previously.

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