A5046421810- Animal health and immunology
- Microbial infections and disease research
- Nutrition and Health Studies
- Agriculture, Plant Science, Crop Management
- Reproductive Physiology in Livestock
- Agricultural economics and policies
- Genetic and phenotypic traits in livestock
- Coccidia and coccidiosis research
- Effects of Environmental Stressors on Livestock
- Vector-Borne Animal Diseases
- Viral gastroenteritis research and epidemiology
- Animal Disease Management and Epidemiology
- Animal Virus Infections Studies
- Viral Infections and Vectors
- Vector-borne infectious diseases
- Forensic Entomology and Diptera Studies
- Helminth infection and control
- Cell Adhesion Molecules Research
- Toxin Mechanisms and Immunotoxins
- Milk Quality and Mastitis in Dairy Cows
- Infectious Diseases and Mycology
- Integrated Water Resources Management
- Infrared Thermography in Medicine
- Food Science and Nutritional Studies
- Probabilistic Statistics in Medicine
Wroclaw University of Environmental and Life Sciences
2016-2025
University of British Columbia
2012
The pre-weaning period is critical for calf health and growth, intensive milk feeding programs may assist postnatal development by improving body growth organ maturation. aim of the present work was to study effects ad libitum replacer (MR) on metabolic adaptation, health, immune status newborn calves. Twenty-eight Holstein x Charolais crossbred calves were fed (ADLIB) or in restricted amounts (6 liters per day; RES) during first five weeks life. MR intake ADLIB treatment gradually reduced...
<title>Abstract</title> Bovine respiratory disease (BRD) in dairy heifer calves cause significant economic losses associated with treatment costs, reduced growth rate and mortality. hyperimmune serum was produced cows hyperimmunized three conservative antigens (<italic>Histophilus somni</italic> rHsp60, <italic>H. rOMP40, <italic>Actinobacillus pleuropneumoniae</italic> LPS core oligosaccharide), which exhibit broad cross-reactivity several Gram-negative bacteria. Dairy received...
Abstract Background Respiratory tract diseases cause significant economic loss in beef cattle. This study aimed to determine whether the application of hyperimmune serum (HS) containing antibodies against selected antigens Gram-negative bacteria would improve health and growth different breeds calves kept on three farms. Two recombinant protein ( Histophilus somni rHsp60 rOMP40) were used immunize four cows produce HS. Eighty seven (Charolaise n = 36, Limousine 34, crossbreed 17) included...
Immaturity of the neonatal immune system is causative for high morbidity in calves and colostrum intake crucial acquiring passive immunity. Pathogenesis promoted by reactive oxygen species accumulating at birth if counter-regulation inadequate. The flavonol quercetin exerts antioxidative anti-inflammatory effects that may enhance health. aim this work was to study feeding on metabolic, inflammatory parameters investigate whether could compensate insufficient supply. Twenty-eight newborn were...
The purpose of this study was to assess the diagnostic value fibrinogen, haptoglobin, and serum amyloid A determination in monitoring treatment limb diseases dairy cows. Fourteen lame cows were examined, while 10 clinically healthy constituted control group. Blood samples from ill animals collected on three occasions: (1) upon arrival at clinic, (2) between third sixth day after arriving, (3) return owner. once. Plasma levels A, total protein its fractions (albumin, α-, β-, γ-globulins)...
Perinatal mortality may vary between herds, but the cost of deaths are always higher than value calf. When diagnosing cause a calf's death it is important to determine when occurred, before or after calving. Metabolomics widely used identify many human diseases, quite rarely applied in veterinary science. The aim this study was compare metabolic profiles calves with different times and those born alive. Into study, twenty one healthy controls (singleton, normal assisted calving, alive) 75...
Perinatal calf mortality in dairy herds has been reported worldwide. The etiology of stillbirth is multifactorial, and can be caused by various species bacteria environmental factors. Among them some potential pathogens from the Mollicutes class such as Mycoplasma (M.) spp. Ureaplasma (U.) diversum isolated bovine genital tract other organs suspected cattle. aim this study was to evaluate if belonging Molli- cutes i.e. M. bovis, bovigenitalium, canadense, canis, arginini, bovirhinis, dispar,...
The aim of this study was to evaluate the effects immunising farm animals with Histophilus somni recombinant heat shock protein 60kDa (H. rHsp60) in field conditions. Fifty piglets, 10 calves and 30 hens were immunised twice, same number each species used as control. humoral immune response evaluated using ELISA piglets (IgG, IgA IgM) (IgG1, IgG2 sera hen egg yolks (IgY). Cell-mediated responses skin test. Concentrations serum haptoglobin plasma fibrinogen calves, daily weight gain well...
Abstract The aim of this study was to evaluate the acute phase response dairy cows repeated liver biopsy in order estimate safety procedure during transition period. Liver biopsies (up 1000 mg tissue) were conducted twice a day, 7 days before expected parturition and 3 after calving. number needle insertions for each recorded dependent on amount obtained tissue. Blood samples taken day parturition, then 3, 4, 14 Body temperature measured daily all 30 from until concentrations haptoglobin,...
Gram-negative bacterial infections are a serious problem in beef and dairy cattle. Bacterial outer membrane proteins (OMPs) play pivotal role cellular survival the host-bacterium interaction. Histophilus somni OMP40 was identified as porin with homology between its N-terminal amino acid sequence sequences of porins other gram-negative bacteria The aim this study to produce recombinant H. (rOMP40), optimize production evaluate immunogenic properties calves. cross-reactivity anti-rOMP40...
It is known that the bovine fetus can mount an immune and inflammatory reaction to infection, but it not whether there a contemporaneous maternal response. Nor response of calves which die perinatally, with or without differs from live perinates. Hence, objective this study was determine if acute phase reactant immunoglobulin concentrations differed between (and their dams) in three groups: (CC; n = 21) dead (PM INF+; 22) INF-; 89) utero infection. In calf plasma, serum amyloid A,...
The aim of this study was to report the response a bacterial intrauterine infection in calf. A stillborn calf, dam’s blood and amniotic fluid were submitted for examination. Necropsy calf performed IgG 1 , 2 IgM, IL-6 calf’s serum, Il-6 estimated. During necropsy, pleural peritoneal cavities stained with haemoglobin diagonal fissures aortic arch endothelium found. Salmonella enterica serovar Stanley isolated from spleen, lungs abomasal fluid. Histopathological examination revealed:...
<title>Abstract</title> Bovine respiratory disease (BRD) causes significant economic losses in dairy calves. The induction of an early immune response via parenteral vaccination is complicated by the interference colostral immunity. In this study, we investigated immunization against selected conserved bacterial antigens. Calves were vaccinated twice intranasally and then subcutaneously with <italic>Histophilus somni</italic> recombinant proteins (rOMP40, rHsp60) mixed one two adjuvants: CpG...