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Skip to Search Results- 12Ametaj, Burim N.
- 7Dunn, Suzanna M.
- 6Zebeli, Qendrim
- 4Iqbal, Summera
- 3Dervishi, Elda
- 3Hailemariam, Dagnachew
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Occurrence of retained placenta is preceded by an inflammatory state and alterations of energy metabolism in transition dairy cows
Download2016
Dervishi, Elda, Ametaj, Burim N., Zhang, Guanshi, Dunn, Suzana M., Hailemariam, Dagnachew
Background Failure to expel fetal membranes within 24 h of calving is a pathological condition defined as retained placenta (RP). The objective of this investigation was to evaluate whether there are alterations in several selected serum variables related to innate immunity and carbohydrate and...
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Characterisation of bacterial microbiota of the vagina of dairy cows and isolation of pediocin-producing Pediococcus acidilactici
Download2013
Wang, Yvonne, Ambrose, Divakar J., Ametaj, Burim N., Gänzle, Michael G.
Background Uterine infections in dairy cows lower profitability of dairy operations. Infections of the reproductive tract are related to the overgrowth of pathogenic bacteria during the first three weeks after parturition. However, alterations in the vaginal microbiota composition in the first...
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Innate immunity and carbohydrate metabolism alterations precede occurrence of subclinical mastitis in transition dairy cows
Download2015
Dervishi, Elda, Dunn, Suzana M., Zhang, Guanshi, Ametaj, Burim N., Hailemariam, Dagnachew
Background This study examined whether activation of innate immunity and alterations of carbohydrate and lipid metabolism precede development of subclinical mastitis (SCM). Methods Blood samples were collected from the coccygeal vein from 100 Holstein dairy cows at -8, -4, disease diagnosis week,...
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Repeated oronasal exposure to lipopolysaccharide induced mucosal IgA responses in periparturient dairy cows
Download2014
Dunn, Suzanna M., Iqbal, Summera, Zebeli, Qendrim, Mansmann, Dominik A., Ametaj, Burim N.
This study investigated the effects of repeated oronasal treatment with lipopolysaccharide (LPS) on the humoral immune responses in saliva, vaginal mucus, and the plasma markers of the acute phase response in periparturient dairy cows. One hundred pregnant Holstein cows were administered either 3...
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Profiles of energy metabolites and haptoglobin in dairy cows under organic management in Alberta farms
Download2013
Odhiambo, John F., Dunn, Suzanna M., Farooq, Umar, Ametaj, Burim N.
Profiles of energy metabolites and haptoglobin (Hp) in dairy cows that are transitioned from conventional to organic management in various Alberta farms were compared with those of dairy cows managed conventionally at the University of Alberta dairy farm. Blood samples were collected during the...
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Intravaginal lactic acid bacteria modulated local and systemic immune responses and lowered the incidence of uterine infections in periparturient dairy cows
Download2015
Dunn, Suzanna M., Odhiambo, John F., Farooq, Umar, Ametaj, Burim N., Lam, Tran, Deng, Qilan
The objective of this investigation was to evaluate whether intravaginal infusion of a lactic acid bacteria (LAB) cocktail around parturition could influence the immune response, incidence rate of uterine infections, and the overall health status of periparturient dairy cows. One hundred pregnant...
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Alterations of innate immunity reactants in transition dairy cows before clinical signs of lameness
Download2015
Dervishi, Elda, Hailemariam, Dagnachew, Zhang, Guanshi, Goldansaz, Seyed A., Deng, Qilan, Dunn, Suzanna M., Ametaj, Burim N.
The objectives of this study were to evaluate metabolic and innate immunity alterations in the blood of transition dairy cows before, during, and after diagnosis of lameness during periparturient period. Blood samples were collected from the coccygeal vain once per week before morning feeding...
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Oronasal administration of lipopolysaccharide prepartum modulated plasma metabolite patterns in periparturient dairy cows
Download2013
Dunn, Suzanna M., Iqbal, Summera, Zebeli, Qendrim, Mansmann, Dominik A., Ametaj, Burim N.
The objective of this study was to evaluate whether repeated oronasal administration of LPS before parturition showed effects on metabolic and clinical responses in periparturient dairy cows. Hundred Holstein dairy cows were randomly allocated to two treatment groups (n = 50). Thirty cows out of...
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Effects of prepartal oronasal administration of lipopolysaccharide on milk composition and productivity of transition Holstein cows
Download2013
Ametaj, Burim N., Dunn, Suzanna M., Zebeli, Qendrim, Iqbal, Summera, Mansmann, Dominik A.
The aim of this study was to evaluate the effects of repeated oronasal administration of lipopolysaccharide (LPS) on milk composition and the overall productive performance of dairy cows. One hundred pregnant Holstein dairy cows were randomly assigned to two treatment groups (n = 50). 30 cows out...
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Intraruminal administration of Megasphaera elsdenii modulated rumen fermentation profile in mid-lactation dairy cows
Download2012
Mazzolari, Alberto, Yang, Wen Z., Terrill, Sarah J., Zebeli, Qendrim, Dunn, Suzanna M., Ametaj, Burim N.
This study evaluated the effects of intraruminal administration of Megasphaera elsdenii on ruminal fermentation patterns, the profile of plasma metabolites, and milk yield and composition of mid-lactation dairy cows. Eight primiparous, ruminally cannulated Holstein cows were arranged in a paired...