Effects of added chelated trace minerals, organic selenium, yeast culture, direct-fed microbials and Yucca schidigera extract in horses. Part I: Blood nutrient concentration and digestibility

2013 ◽  
Author(s):  
M. E. Gordon ◽  
M. S. Edwards ◽  
C. R. Sweeney ◽  
M. L. Jerina
Keyword(s):  
Nutrient Concentration ◽  
Trace Minerals ◽  
Yeast Culture ◽  
Selenium Yeast ◽  
Organic Selenium ◽  
Yucca Schidigera

Response of growing cattle to supplementation with organically bound or inorganic sources of selenium or yeast cultures

1991 ◽  
Vol 71 (3) ◽  
pp. 803-811 ◽  
Author(s):  
J. W. G. Nicholson ◽  
R. E. McQueen ◽  
R. S. Bush
Keyword(s):  
Glutathione Peroxidase ◽  
Whole Blood ◽  
Yeast Culture ◽  
Feed Conversion ◽  
Or Efficiency ◽  
Linear Rate ◽  
Beef Calves ◽  
Organic Selenium ◽  
Yeast Cultures ◽  
Holstein Calves

Bioavailability of organically bound and inorganic Se sources differ, the organic form being absorbed more efficiently. Dairy and beef calves (250 kg initial weight) were given a low Se diet alone or supplemented with sodium selenite (1 mg Se d−1; inorganic Se), a Se-enriched yeast (1.5 g yeast d−1 providing 1 mg of Se; organic Se), a live yeast culture (1.5 g d−1) or autoclaved yeast culture (1.5 g d−1). The latter treatments were included to determine the response to yeast per se. There were no treatment effects on rate of weight gain or efficiency of feed conversion by the calves. The Se souces had no effect on digestibility of the diet by sheep. The inorganic Se supplement increased the level of whole blood Se and glutathione peroxidase (GSH-Px) activity at a linear rate with time up to 3 mo from the start of supplementation. The effect of organic Se was sustained for 4 mo and both indices of Se status in blood were higher (P < 0.01) for calves fed the organic Se than for those fed inorganic Se after 4 mo (124 vs. 96 units of GSH-Px activity g−1 haemoglobin and 141 vs. 102 μg Se L−1 of whole blood). The values near the beginning of the trial were higher (P < 0.01) for Holstein calves than for beef calves but both groups showed the same response to source of Se. Subsequently, levels declined for Holstein and increased for beef calves given diets without supplemental Se. The results showed that Se supplementation for 4 mo had no effect on animal performance; that more than 4 mo are required to fully deplete or replete blood Se and GSH-Px; and, that supplemental organic Se gives higher (P < 0.01) blood Se and GSH-Px activity than does inorganic Se. Key words: Organic selenium, calves, glutathione peroxidase

Effects of supplementing layer hen diets with selenium and vitamin E on egg quality, lipid oxidation and fatty acid composition during storage

2008 ◽  
Vol 88 (3) ◽  
pp. 475-483 ◽  
Author(s):  
Maziar Mohiti-Asli ◽  
Farid Shariatmadari ◽  
Houshang Lotfollahian ◽  
Mohamad Taghi Mazuji
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Vitamin E ◽  
Acid Composition ◽  
Egg Quality ◽  
Basal Diet ◽  
Quality Parameters ◽  
Control Group ◽  
Selenium Yeast ◽  
Organic Selenium

A 7-wk trial was carried out to investigate the effect of vitamin E and inorganic and organic selenium added to hens' diet on quality and lipid stability of eggs during storage. One hundred forty-four Hy-Line W-36 hens (63-wk of age) were divided into six equal groups. Five groups received a basal diet supplemented with 0.4 mg kg-1 sodium selenite or selenium yeast, 200 mg kg-1 vitamin E or a combination of selenium and vitamin E; whereas the control group received no supplementation. Hen production was assessed daily and fresh egg quality parameters were determined every 2 wk. Eggs were stored under different conditions (4°C, 23–27°C or 31°C) for 14 d. Eggs were analyzed for quality characteristics, egg component weight, Malondialdehyde values as a secondary oxidation product and yolk fatty acid (FA) composition. The performance of the hens and egg weights were not affected either by the source of the selenium or by the vitamin E. The inclusion of selenium or vitamin E in the diet significantly increased their concentrations in the egg. The supplemented diets also improved egg quality, oxidative stability and fatty acid composition during storage. Key words: Vitamin E, selenium, lipid peroxidation, egg fatty acid composition, storage

Effect of organic zinc and selenium on dairy cow productivity and fertility

2007 ◽  
Vol 2007 ◽  
pp. 145-145
Author(s):  
A. I. Macrae ◽  
L. Hodgson-Jones ◽  
K. Aitchison ◽  
S Burton ◽  
D. Lawson ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Reproductive Performance ◽  
Dairy Cow ◽  
Trace Minerals ◽  
Selenium Yeast ◽  
Organic Zinc ◽  
Ruminant Diets ◽  
The Uk ◽  
Effect Of Feeding

Major changes have been occurring over the last 20 years in the UK dairy industry, with improvements in cow genetics and nutritional management resulting in a doubling of average milk yields to 6,750 litres/cow/year by 2004 (DEFRA, 2005). The same period has resulted in a decline of dairy cow fertility parameters with recent studies having identified a 1% fall in conception rates per annum (Royal et al., 2000). The role of organic forms of trace minerals has been examined in ruminant diets with particular regard to their role in immune function (Spears, 2000). The aim of the study was to examine the effect of feeding an organic source of zinc (Bioplex Zinc™, Alltech Inc. USA) and selenium yeast (Sel-Plex™, Alltech Inc. USA) to high yielding Holstein dairy cows on production and reproductive performance.

scholarly journals Brown rice, selenium yeast and ?-tocopherol acetate in chicken’s diet: effects on meat quality

2017 ◽  
Vol 38 (2) ◽  
pp. 957
Author(s):  
Aline Arassiana Piccini Roll ◽  
Edenilse Gopinger ◽  
Martha Lopes Schuch de Castro ◽  
Jorge Schafhäuser Junior ◽  
Victor Fernando Büttow Roll ◽  
...  
Keyword(s):  
Brown Rice ◽  
Selenium Concentration ◽  
Experimental Unit ◽  
Chicken Breast ◽  
Breast Meat ◽  
Positive Interaction ◽  
Selenium Yeast ◽  
Organic Selenium ◽  
Tocopherol Acetate ◽  
Water Holding

The effects of diet supplementation with ?-tocopherol acetate (VE) and selenium yeast (SeL) on the water holding capacity (WHC), cooking weight loss (CL), drip loss (DL), pH, colour and selenium concentration of the breast of chickens fed diets based on corn or brown rice were studied. From 21 days of age, a total of 200 birds were housed in 38 floor pens (experimental unit) in a randomised 23 factorial arrangement. The levels of supplementation were VE (0 and 200 mg/kg), organic selenium (0 and 0.3 ppm) and two diets (100% corn and 100% brown rice) in a total of eight treatments: T1) corn + 0 SeL + 0 VE (control); T2) corn + 200 mg/kg VE + 0 SeL; T3) corn + 0 VE + 0.3 ppm SeL; T4) corn + 200 mg/kg VE + 0.3 ppm SeL; T5) brown rice + 0 VE +0 SeL; T6) brown rice + 200 mg/kg VE + 0 SeL; T7) brown rice + 0 VE + 0.3 ppm SeL; T8) brown rice + 200 mg/kg VE + 0.3 ppm SeL. The concentration of selenium in the breast increased with VE supplementation in the diet (P < 0.001). However, a positive interaction between VE and SeL on selenium concentration in the meat was found (P = 0.06). A better WHC with the inclusion of SeL and VE was found only in the rice-based diets. The replacement of corn by brown rice decreased (P < 0.05) the yellowness of the meat. CL and DL were not significantly affected by the treatments. Broilers fed with SeL supplemented diets showed a higher pH in the breast than diets without supplementation. In conclusion, the interaction between VE and SeL increased selenium in meat but improved WHC only in rice-based diets. The replacement of corn by brown rice decreased the yellowness of chicken breast meat.

Acute and Subchronic Toxicity Studies on Sel-Plex®, a Standardized, Registered High-selenium Yeast

2006 ◽  
Vol 25 (6) ◽  
pp. 465-476 ◽  
Author(s):  
James C. Griffiths ◽  
Ray A. Matulka ◽  
Ronan Power
Keyword(s):  
Adult Female ◽  
Adult Male ◽  
Sprague Dawley ◽  
Oral Toxicity ◽  
Selenium Yeast ◽  
Yeast Saccharomyces Cerevisiae ◽  
Male And Female ◽  
Organic Selenium ◽  
Toxicity Studies ◽  
Selenized Yeast

Selenium has been recognized as an essential nutrient for human health; however, its bioavailability is primarily dependent upon the type of selenium, elemental versus organic. In geographic areas low in selenium, there is the potential for animals (including humans) to become selenium deficient and this potential deficiency can be remedied by consumption of exogenous selenium, including selenium-enriched yeast ( Saccharomyces cerevisiae) that contains high levels of organic selenium (e.g., selenized yeast). The present studies were conducted to investigate potential oral toxicity of a unique selenized yeast preparation (Sel-Plex®) when administered to (1) adult female CHS Swiss mice ICo:OFI (IOPS Caw); (2) adult female CHS Sprague-Dawley rats; and (3) adult male and female Sprague-Dawley CD rats. For the 28- and 90-day toxicity studies, (1) adult male and female Sprague-Dawley CRL:CD® (SD) IGS BR strain rats and (2) adult male and female 6- to 7-month-old Beagle dogs were used. The LD50 for mice was ® ≥2000 mg Sel-Plex® /kg (≥4.06 mg Se/kg) and for rats, was greater ® than ≥2000 mg Sel-Plex® /kg (≥4.06 mg Se/kg). In the two 28-day studies, for rats, the no observed adverse effects level (NOAEL) was 50 mg Sel-Plex®/kg/day (0.1 mg Se/kg/day), and for the dogs, the NOAEL was 22.5 mg Sel-Plex®/kg/day (0.045 mg Se/kg/day). For the two 90-day studies, for rats the NOAEL for Sel-Plex® was 114 mg/kg/day (0.23 mg Se/kg/day), and for dogs, the NOAEL was 30 mg Sel-Plex®/kg/day (0.06 mg Se/kg/day): the latter being the NOAEL in the most sensitive species.

scholarly journals The effect of high levels of organic selenium on body weight, concentration of selenium in blood plasma and mortality of chickens

2006 ◽  
Vol 22 (3-4) ◽  
pp. 97-104
Author(s):  
Mirjana Joksimovic-Todorovic ◽  
B. Zivkovic ◽  
Vesna Davidovic
Keyword(s):  
Body Weight ◽  
Blood Plasma ◽  
Body Mass ◽  
Diet Group ◽  
Selenium Yeast ◽  
Organic Selenium ◽  
Weight Concentration ◽  
High Level ◽  
Experimental Group ◽  
In Blood Plasma

It is examined the effects of high levels organic selenium (selenium yeast) on body weight, concentration Se in blood plasma and mortality of chickens. The experiment is carried with 100 Hybro chickens, which are divided in 5 groups. The experiment lasted 42 days. Chickens are fed with standardized diets in which are added 0, 2, 5, 10 or 15 mgSe/kg diet. Chickens fed with 2 mgSe/kg diet (group II) by seventh day to the end of fourth week are registered the important higher body weight in relate to I group (P<0,05*; P<0,01**). At the end fifth week chickens of II group had a little higher body weight than the chickens of first group, but at the end of sixth week their body weight were the same. The chickens of III group had (5 mgSe/kg feed) had until fifth week of experiment higher body mass in relate to chickens first group, but this differences were not statistical significant (P>0,05*). At the end of the experiment (sixth week) the their body weight was little lower then body mass chickens of first group. Chickens of IV and V group (10 and 15 mgSe/kg feed) had little higher increasing than chickens first group until fifth week of the experiment, but at the and of the experiment chickens IV group had lesser body weight, and chickens of V group bigger body mass then chickens of I group. The concentration of selenium in blood plasma of chickens fed with high levels of organic selenium (groups II, III, IV and V) was importantly higher (P<0,05*; P<0,01**) with all experimental periods in relate with I group. The concentration of selenium in blood plasma was increased with increasing of level of selenium in diet and time exposure. The highest level of selenium in blood plasma are established at the and of experiment (sixth week), with all experimental group. There were not effects on mortality of chickens fed of the high level organic selenium.

scholarly journals Comparative analysis of various sources of selenium on the growth performance and antioxidant status in broilers under heat stress

2023 ◽  
Vol 83 ◽  
Author(s):  
F. Gul ◽  
B. Ahmad ◽  
S. Afzal ◽  
A. Ullah ◽  
S. Khan ◽  
...  
Keyword(s):  
Heat Stress ◽  
Comparative Analysis ◽  
Basal Diet ◽  
Oxidative Capacity ◽  
Negative Control ◽  
Selenium Supplementation ◽  
Control Group ◽  
Selenium Yeast ◽  
Response Level ◽  
Organic Selenium

Abstract The supplementation of Selenium-enriched probiotics is effective in reducing oxidative stress and maintaining meat quality stability in broiler chicken especially under heat stress. An experimental study was conducted to perform Comparative analysis of Selenium yeast with inorganic Se in broilers under heat stress. A total of 120 broilers chicks of one day were assigned to 4 groups each consisting 30 chicks fed on same basal diet but different selenium sources. The basal diet of group D1 was not supplemented with Se source (Negative control), group D2 basal diet was supplemented with inorganic selenium (Sodium selenite 0.22mg/Kg starter phase and 0.15mg/Kg finisher phase), group D3 basal diet was supplemented with commercially available organic selenium (Seleno-methionine 0.22mg/Kg starter phase and 0.15mg/Kg finisher phase) and group D4 basal diet was supplemented with self-developed organic selenium (Se-enriched yeast 0.22mg/Kg starter phase and 0.15mg/Kg finisher phase). The performance parameters i.e. feed intake (FI), live body weight (BW) and FCR were not significantly (p>0.05) effected by selenium supplementation in the starter phase but were significantly (p<0.05) effected in the finisher phase. Selenium supplementation significantly (p<0.05) effected serum Se level in different supplemented groups. Higher serum Se value (58.20±0.06) was recorded in D4 group. Similarly significantly lower selenium value was recorded for D4 and higher was recorded for D1 (11.36±0.08). However lower serum Paraoxonase (PON) value was recorded for D4 (13.24±0.01) and higher for D1 (13.33±0.03). Comparatively self-developed Se enriched yeast increased the Se accumulation and improved antioxidant system. Glutathione peroxidase (GPx) was found higher in D4 (12.333±0.03) followed by D3, D2 and D1 respectively. Whereas superoxide dismutase (SOD) was significantly lower (p<0.05) in D4 (0.1437±0.003) followed by D3 (0.1457±0.002). Selenium supplementation increased the bird’s survival rate. Birds fed on Se enriched yeast showed higher Se deposition and better antioxidant capacity as compared to other sources of selenium. Se-enriched yeast displayed an improved result on Se deposition in tissues, and oxidative capacity, meat tenderness and immune response level as compared to other sources of selenium.

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