The Experts below are selected from a list of 15 Experts worldwide ranked by ideXlab platform
M T Socha - One of the best experts on this subject based on the ideXlab platform.
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effect of including canola meal and supplemental iodine in diets of dairy cows on short term changes in iodine concentrations in milk
Journal of Dairy Science, 2015Co-Authors: W P Weiss, D J Wyatt, D H Kleinschmit, M T SochaAbstract:Abstract The dietary requirement for iodine is based on thyroxine production, but data are becoming available showing potential improvements in hoof health when substantially greater amounts of I are fed. Feeding high amounts of I, however, can result in the milk having excessive concentrations of I. Canola meal contains goitrogenic compounds that reduce the transfer of I into milk. We hypothesized that including canola meal in diets would allow high supplementation rates of I without producing milk with unacceptable concentrations of I. Thirty midlactation Holstein cows were fed a diet with all supplemental protein from soybean meal (0% of diet dry matter as canola meal) or with all supplemental protein from canola meal (13.9% canola meal). A third treatment has a mix of soybean meal and canola meal (3.9% canola meal). Within canola-meal treatment, cows were fed 0.5 or 2.0mg of supplemental I per kilogram of diet dry matter from Ethylenediamine Dihydroiodide. Cows were maintained on the canola treatment for the duration of the experiment but were changed from one I treatment to the other after 13d of receiving the treatment. Milk I concentration before the treatments started (cows fed 0.5mg/kg of I) averaged 272μg/L and increased within 22h after cows were first fed diets with 2mg/kg of I. As inclusion rate of canola meal increased, the concentration of I in milk decreased linearly. After 12d of supplementation, milk from cows fed 0.5mg/kg of I had 358, 289, and 169μg of I/L for the 0, 3.9%, and 13.9% canola-meal treatments. For cows fed 2.0mg/kg of I, milk I concentrations were 733, 524, and 408μg/L, respectively. Concentrations of I in serum increased with increased I supplementation, but the effect of canola meal was opposite of what was observed for milk I. Cows fed the highest canola-meal diets had the highest serum I whether cows were fed 0.5 or 2.0mg/kg of I. Feeding dairy cows diets with 13.9% canola meal maintained milk I concentrations below 500μg/L when diets were supplemented with 2mg/kg of I.
Nancy Ramsey - One of the best experts on this subject based on the ideXlab platform.
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iodine in milk and meat of dairy cows fed different amounts of potassium iodide or Ethylenediamine Dihydroiodide
Journal of Dairy Science, 1990Co-Authors: E W Swanso, J K Mille, F J Muelle, C S Patto, J A Aco, Nancy RamseyAbstract:Abstract Relationships between I intake by lactating Holstein cows and iodine concentrations in milk and meat were investigated. Six treatment groups with seven cows assigned to each treatment were fed a basal diet containing .8mg I/kg alone or supplemented with I at 1, 2, or 4 mg/kg in four 5-wk periods. Basal alone was fed in the first and third periods and the I supplement was potassium iodide in the second period and Ethylenediamine Dihydroiodide in the fourth period. Iodine concentrations in milk increased with each increase in dietary I from 205ng/ml for basal periods to 404, 477, and 757ng/ml when 1, 2, or 4 mg/kg I was fed as potassium iodide; and 467, 535, and 869ng/ml when 1, 2 or 4 mg/kg I was fed as Ethylenediamine Dihydroiodide. Concentrations of I in skeletal muscle after the fourth period were not affected by 2 mg/kg I and only increased from 166 to 199 ng/g when supplemental I was 4 mg/kg. Moderate changes in dietary I are quickly reflected in milk I, but I in meat is relatively stable.
W P Weiss - One of the best experts on this subject based on the ideXlab platform.
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effect of including canola meal and supplemental iodine in diets of dairy cows on short term changes in iodine concentrations in milk
Journal of Dairy Science, 2015Co-Authors: W P Weiss, D J Wyatt, D H Kleinschmit, M T SochaAbstract:Abstract The dietary requirement for iodine is based on thyroxine production, but data are becoming available showing potential improvements in hoof health when substantially greater amounts of I are fed. Feeding high amounts of I, however, can result in the milk having excessive concentrations of I. Canola meal contains goitrogenic compounds that reduce the transfer of I into milk. We hypothesized that including canola meal in diets would allow high supplementation rates of I without producing milk with unacceptable concentrations of I. Thirty midlactation Holstein cows were fed a diet with all supplemental protein from soybean meal (0% of diet dry matter as canola meal) or with all supplemental protein from canola meal (13.9% canola meal). A third treatment has a mix of soybean meal and canola meal (3.9% canola meal). Within canola-meal treatment, cows were fed 0.5 or 2.0mg of supplemental I per kilogram of diet dry matter from Ethylenediamine Dihydroiodide. Cows were maintained on the canola treatment for the duration of the experiment but were changed from one I treatment to the other after 13d of receiving the treatment. Milk I concentration before the treatments started (cows fed 0.5mg/kg of I) averaged 272μg/L and increased within 22h after cows were first fed diets with 2mg/kg of I. As inclusion rate of canola meal increased, the concentration of I in milk decreased linearly. After 12d of supplementation, milk from cows fed 0.5mg/kg of I had 358, 289, and 169μg of I/L for the 0, 3.9%, and 13.9% canola-meal treatments. For cows fed 2.0mg/kg of I, milk I concentrations were 733, 524, and 408μg/L, respectively. Concentrations of I in serum increased with increased I supplementation, but the effect of canola meal was opposite of what was observed for milk I. Cows fed the highest canola-meal diets had the highest serum I whether cows were fed 0.5 or 2.0mg/kg of I. Feeding dairy cows diets with 13.9% canola meal maintained milk I concentrations below 500μg/L when diets were supplemented with 2mg/kg of I.
E W Swanso - One of the best experts on this subject based on the ideXlab platform.
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iodine in milk and meat of dairy cows fed different amounts of potassium iodide or Ethylenediamine Dihydroiodide
Journal of Dairy Science, 1990Co-Authors: E W Swanso, J K Mille, F J Muelle, C S Patto, J A Aco, Nancy RamseyAbstract:Abstract Relationships between I intake by lactating Holstein cows and iodine concentrations in milk and meat were investigated. Six treatment groups with seven cows assigned to each treatment were fed a basal diet containing .8mg I/kg alone or supplemented with I at 1, 2, or 4 mg/kg in four 5-wk periods. Basal alone was fed in the first and third periods and the I supplement was potassium iodide in the second period and Ethylenediamine Dihydroiodide in the fourth period. Iodine concentrations in milk increased with each increase in dietary I from 205ng/ml for basal periods to 404, 477, and 757ng/ml when 1, 2, or 4 mg/kg I was fed as potassium iodide; and 467, 535, and 869ng/ml when 1, 2 or 4 mg/kg I was fed as Ethylenediamine Dihydroiodide. Concentrations of I in skeletal muscle after the fourth period were not affected by 2 mg/kg I and only increased from 166 to 199 ng/g when supplemental I was 4 mg/kg. Moderate changes in dietary I are quickly reflected in milk I, but I in meat is relatively stable.
Alexandre Girou - One of the best experts on this subject based on the ideXlab platform.
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iodine content of canadian retail milk samples ii after the Ethylenediamine Dihydroiodide ban
Food Research International, 1993Co-Authors: Pete W F Fische, Alexandre GirouAbstract:Abstract Whole and partially skimmed (2% fat) retail milk samples were collected from across Canada and analysed for their iodine content to determine whether this had decreased since the imposition of a ban on the use of Ethylenediamine Dihydroiodide (EDDI) to prevent foot rot in cattle. The mean iodine concentration ± standard deviation ranged from 177 ± 35 μg/litre to 456 ± 151 μg/litre, with individual samples ranging from 87 to 1304 μg/litre. The national mean concentrations for both whole and partially skimmed samples were not significantly different (p > 0·05) from the values obtained prior to the imposition of the EDDI ban, although some differences were observed in a few regions. Thus, except in a few instances, the change in regulations on the use of EDDI has had minimal effect on the iodine levels in milk.