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Khalili, Mohsen; Chamani, Mohammad; Amanlou, Hamid; Nikkhah, Ali; Sadeghi, Aliasghar. |
The aim of this study was to determine the effects of supplementing close-up and fresh dairy cows’ diets with sodium selenite or organic sources of selenium (Se) on the dry matter intake (DMI), milk production and composition. Based on their body condition score (BCS), previous lactation milk yield and expected calving date, 24 multiparous Holstein dairy cows were balanced and randomly assigned to 4 experimental treatments. Experimental treatments were: control (basal diet without Se supplementation with 0.10 and 0.15 mg of Se kg-1 DM in close-up and fresh diets, respectively), sodium selenite supplementation (0.50 mg of Se kg-1 DM; Se-S), selenium yeast supplementation (0.50 mg of Se kg-1 DM; Se-Y) and selenomethionine supplementation (0.50 mg of Se kg-1... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Milk Se Concentration; Lactation Performance; Transition Period; Selenium.. |
Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/44691 |
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Khalili, Mohsen; Chamani, Mohammad; Amanlou, Hamid; Nikkhah, Ali; Sadeghi, Aliasghar; Dehkordi, Farhad Kamali; Rafiei, Mohammad; Shirani, Vahid. |
The purpose of this study was to investigate the effects of four types of diets containing different forms of selenium on the hematological blood parameters, reproduction and health of dairy cattle during the transition period. Twenty-four close-up dry cows with a mean of 259 ± 1days of pregnancy and expected 21 ± 1days prior to parturition were selected. The cows were fed four diets: 1) basal diet without selenium supplementation (C); 2) basal diet plus 0.5ppm selenium in the form of sodium selenite (Se-S) 3) basal diet plus 0.5ppm selenium in the form of selenium yeast (Se-Y); 4) basal diet plus 0.5ppm selenium in the form of selenomethionine (Se-M). Blood samples for measuring hematological blood parameters (including lymphocyte, red blood cells,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Selenium; Hematological blood parameters; Reproduction; Health; Dairy cows.. |
Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/45371 |
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