Serum Progesterone in Heifers with Different Luteal Activity Over 8 Days

Thirty crossbred heifers were divided into three groups to evaluate serum progesterone concentration after treatment with a new intravaginal device for 8 days. The study, authored by H. L. D. Neri, measured hormone levels via radioimmunoassay on days 0, 3, 5, and 8. Results indicate that animals with higher endogenous progesterone promoted less release of exogenous progesterone from the device.

Use Cases

• Modeling progesterone release profiles based on endogenous hormone levels and treatment group.
• Analyzing the effect of luteolysis induction on serum progesterone concentration over time.
• Comparing hormone concentration means among different ovarian condition groups across specific days.
• Investigating the relationship between physiological condition at device insertion and remaining progesterone levels in used devices.

Strengths

• Includes specific progesterone concentration measurements (e.g., 5.3±3.1 ng/mL) for three experimental groups.
• Data collection follows a structured 8-day protocol with blood samples taken at four time points (D0, D3, D5, D8).
• Statistical analysis using the Tukey test is described for comparing means among groups and within groups.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

paperswithcode

Collection Method

Experimental study measuring serum progesterone via radioimmunoassay (RIA) in 30 crossbred heifers.