A Herd-Level Study of Risk Factors for an Elevated Prevalence of Postpartum Diseases in Dairy Farms
Journal Title: Concepts of Dairy & Veterinary Sciences - Year 2018, Vol 1, Issue 4
Abstract
The objective of this herd-level study was to identify risk factors for an elevated prevalence of postpartum diseases such as displaced abomasum, hyperketonemia, purulent vaginal discharge, cytological endometritis, leukocyte esterase endometritis, and prolonged anovulation. A total of 100 commercial dairy farms participated in the study for which the unit of interest was the herd. Forty cows per herd (or all of the cows calving within a 1-year period if smaller than forty cows) were enrolled in the study representing a total of 3,776 cows which were followed until they reached 60 days in milk (DIM). Cows were examined for retained placenta (≥ 24h after calving), displaced abomasum (1-60DIM), hyperketonemia (1-14DIM), purulent vaginal discharge (30-43DIM), cytological endometritis (30-43 DIM), leukocyte esterase endometritis (30-43DIM), and prolonged anovulation (30-57DIM). A number of management variables were also collected, including season, average herd size, average parity, housing systems for lactating cows and at calving, and type of bedding at calving. The prevalence of each of these diseases or management variables was computed. Logistic regression models were used to identify herd-level risk factors for the elevated prevalence of postpartum diseases in farms. Risk factors for an elevated prevalence of displaced abomasum included ≥5.0% retained placenta, ≥10.0% Hyperketonemia, smaller herd size (≤87 lactating cows), and cold season (November to April) of calving. Risk factors for an elevated prevalence of hyperketonemia were the tie-stall housing system at calving, herd average parity ≥2.7, and ≥5.0% retained placenta. Risk factors for an elevated prevalence of purulent vaginal discharge included ≥5.0% retained placenta, wood shavings as bedding at calving, and cold season (November to April) of calving. Risk factors for an elevated prevalence of cytological endometritis included ≥5.0% retained placenta, ≥10.0% hyperketonemia, and tie-stall housing system at calving. Risk factors for an elevated prevalence of leukocyte esterase endometritis were the same as for cytological endometritis. Risk factors for an elevated prevalence of prolonged anovulation were ≥10.0% hyperketonemia, ≥17.5% cytological endometritis, and cold season (November to April) of calving. Overall, an elevated prevalence of retained placenta and hyperketonemia were two common risk factors for herds with an excessive prevalence of reproductive tract diseases and prolonged anovulation.
Authors and Affiliations
J Dubuc, M Rousseau, J P Roy, S Buczinski
Keywords
Related Articles
- EP ID EP591638
- DOI 10.32474/CDVS.2018.01.000116
- Views 129
- Downloads 0
Review on Procedures and Utilization of Artificial Insemination Technologies in NekemteSemen and Liquid Nitrogen Production and Distribution Centre, Western Oromia, Ethiopia
It is known that long time before artificial insemination (AI) technology had only a single institution nationally i.e. National Artificial Insemination Center (NAIC) and which is found in Addis Ababa City, Kality area t...
Microbial Source Tracking Markers for Detection of Faecal Contamination in Environmental Waters
Microbial source tracking (MST) describes a suite of methods and an investigative strategy for determination of faecal pollution sources in environmental waters. They rely on the association of...
Ultrasonic Debridement with Stem Cell Therapy of Suspensory Branch Desmitis in an Equine Patient
Ultrasonic debridement as a treatment for tendinopathy and desmitis is a relatively new approach in orthopedic surgery. Previously only used in limited cases, this procedure shows promise for treating li...
Anti-Synepthelichorial Placenta Scfv Library Construction
Hens were immunized with a macerate of goat and sheep placentomes. Immunizations were repeated every 15 days. Eggs were collected over a period of 03 immunizations, IgY isolated, and its concentration measured. After 45...
Echocardiography, Ultrasonography and Laboratory Findings of Left Ventricular Systolic Dysfunction and Right-Sided Congestive Heart Failure in A Neonatal Calf
A 14-days old female Holstein calve was referred to the Large Animals Hospital of the Faculty of Veterinary Medicine of Selcuk University with a history of inappetence, weight loss and lethargy. On the initial examinatio...