Search Results - "Heuwieser, W"

Impact of heat stress on conception rate of dairy cows in the moderate climate considering different temperature–humidity index thresholds, periods relative to breeding, and heat load indices by Schüller, L.K., Burfeind, O., Heuwieser, W.

“…The objectives of this retrospective study were to investigate the relationship between temperature–humidity index (THI) and conception rate (CR) of lactating…”
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Invited review: Antibiotic treatment of metritis in dairy cows: a systematic approach by Haimerl, P, Heuwieser, W

“…Acute puerperal metritis (APM) is an acute systemic illness with fever ≥ 39.5 °C and signs of toxemia due to an infection of the uterus occurring within 21 d…”
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The associations between postpartum serum haptoglobin concentration and metabolic status, calving difficulties, retained fetal membranes, and metritis by Pohl, A, Burfeind, O, Heuwieser, W

“…Measurement of serum haptoglobin (Hapto) concentrations results in only moderate reported specificity and sensitivity for the detection of metritic cows. The…”
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Hypocalcemia-Cow-level prevalence and preventive strategies in German dairy herds by Venjakob, P L, Borchardt, S, Heuwieser, W

“…Hypocalcemia around calving is considered a gateway disease that can lead to health disorders and decreased milk production. The objective of this…”
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Association between transfer of passive immunity, health, and performance of female dairy calves from birth to weaning by Sutter, F., Venjakob, P.L., Heuwieser, W., Borchardt, S.

“…The objective of this observational study was to compare calf health, average daily weight gain, and calf mortality considering the proposed categories of…”
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Management-related factors in dry cows and their associations with colostrum quantity and quality on a large commercial dairy farm by Borchardt, S., Sutter, F., Heuwieser, W., Venjakob, P.

“…The objective of this observational study was to evaluate the association of management-related factors in dry cows and colostrum quantity and quality in…”
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Associations between days in the close-up group and milk production, transition cow diseases, reproductive performance, culling, and behavior around calving of Holstein dairy cows by Venjakob, P.L., Heuwieser, W., Borchardt, S.

“…The objective of experiment I was to evaluate the association between days in the close-up group (DINCU) and milk production, early lactation diseases,…”
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Prevalence of subclinical ketosis and relationships with postpartum diseases in European dairy cows by Suthar, V S, Canelas-Raposo, J, Deniz, A, Heuwieser, W

“…Subclinical ketosis (SCK) is defined as concentrations of β-hydroxybutyrate (BHBA) ≥ 1.2 to 1.4 mmol/L and it is considered a gateway condition for other…”
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Technical note: Development of a noninvasive respiration rate sensor for cattle by Strutzke, S, Fiske, D, Hoffmann, G, Ammon, C, Heuwieser, W, Amon, T

“…The measurement of the respiration rate (RR) in cattle is a valuable tool for monitoring health status. Thus, an RR sensor can be essential for stress…”
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Impact of heat stress on estrus expression and follicle size in estrus under field conditions in dairy cows by Schüller, L.K., Michaelis, I., Heuwieser, W.

“…The objective of this study was to investigate the impact of heat stress on the expression of estrus signs and follicular diameter at the day of estrus in…”
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Evaluation of calving indicators measured by automated monitoring devices to predict the onset of calving in Holstein dairy cows by Ouellet, V, Vasseur, E, Heuwieser, W, Burfeind, O, Maldague, X, Charbonneau, É

“…Dystocias are common in dairy cows and often adversely affect production, reproduction, animal welfare, labor, and economics within the dairy industry. An…”
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Antibiotic treatment of metritis in dairy cows-A meta-analysis by Haimerl, P, Arlt, S, Borchardt, S, Heuwieser, W

“…The objective of this meta-analysis was to assess the efficacy of the treatment of bovine metritis with common antibiotic and nonantibiotic treatment options…”
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Association of activity and subsequent fertility of dairy cows after spontaneous estrus or timed artificial insemination by Tippenhauer, C.M., Plenio, J.-L., Heuwieser, W., Borchardt, S.

“…The objective of this observational study was to evaluate the association between increased physical activity at first artificial insemination (AI) and…”
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Evaluation of laboratory and on-farm tests to estimate colostrum quality for dairy cows by Röder, M, Borchardt, S, Heuwieser, W, Rauch, E, Sargent, R, Sutter, F

“…The objectives of this study were to evaluate different analytical methods to determine colostrum quality in dairy cattle, including one laboratory-based…”
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Feasibility and acceptance of ready-made standard operating procedures in calf care on German dairy farms by Neukirchner, S., Jensen, K.C., Heuwieser, W.

“…Calf loss continues to be a considerable problem on German dairy farms. Untrained personnel or the lack of best practice routines are potential reasons…”
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Association of postpartum hypocalcemia with early-lactation milk yield, reproductive performance, and culling in dairy cows by Venjakob, P L, Pieper, L, Heuwieser, W, Borchardt, S

“…Periparturient hypocalcemia is frequently observed and considered as a gateway disease that is associated with various health issues. The objective of this…”
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Association between serum calcium dynamics around parturition and common postpartum diseases in dairy cows by Venjakob, P L, Staufenbiel, R, Heuwieser, W, Borchardt, S

“…The objective of this study was to compare periparturient serum Ca dynamics (CaDyn) in cows with and without diseases in early lactation. The study enrolled…”
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Presence of Escherichia coli, Trueperella pyogenes, α-hemolytic streptococci, and coagulase-negative staphylococci and prevalence of subclinical endometritis by Sens, A, Heuwieser, W

“…Subclinical endometritis (SCE) has a severe negative effect on reproductive performance of dairy cows. Different studies have shown a wide variety of cut…”
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Effect of dose and frequency of prostaglandin F2α treatments during a 7-day Ovsynch protocol with an intravaginal progesterone releasing device on luteal regression and pregnancy outcomes in lactating Holstein cows by Hölper, M., Bretzinger, L., Randi, F., Heuwieser, W., Borchardt, S.

“…Our objective was to evaluate the effect of 3 different Ovsynch protocols on progesterone (P4) and pregnancies per artificial insemination (P/AI), where all…”
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Evaluation of an electronic cowside test to detect subclinical ketosis in dairy cows by Iwersen, M, Falkenberg, U, Voigtsberger, R, Forderung, D, Heuwieser, W

“…The objective of this study was to determine the diagnostic performance of an electronic beta-hydroxybutyrate (BHBA) hand-held meter (Precision Xtra) for use…”
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