Scrotal Thermoregulation in Nelore and Canchim Bulls Measured Monthly for 12 Months

A 12-month longitudinal study of 48 young bulls (24 Nelore and 24 Canchim) raised on pasture in São Carlos, Brazil. The dataset includes monthly measurements of ocular, scrotal, and rectal temperatures via infrared thermography and clinical thermometry, along with scrotal biometrics and vascular flow assessments via color Doppler ultrasonography. The research was authored by Giovanna Ramos and published under a CC-BY-4.0 license on figshare.

Use Cases

• Compare systemic homeothermy and scrotal thermoregulation efficiency between Nelore and Canchim cattle breeds based on temperature measurements.
• Analyze the relationship between vascular flow in the pampiniform plexus and testicular temperature based on color Doppler ultrasonography data.
• Model the effects of age and breed on gonadal development and heat tolerance in beef bulls raised in a tropical environment.
• Investigate breed-specific strategies for maintaining fertility under heat stress based on infrared thermography and biometric data.

Strengths

• Longitudinal design with monthly evaluations over 12 months, providing temporal depth.
• Includes 48 subjects with balanced breed groups (24 Nelore, 24 Canchim).
• Employs multiple measurement techniques: infrared thermography, clinical thermometry, caliper biometrics, and color Doppler ultrasonography.
• Statistical analysis performed with SAS PROC MIXED, adopting a 5% significance level for main effects and interactions.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the single study location in São Carlos, Brazil.

Provenance

Source

figshare, authored by Giovanna Ramos.

Collection Method

Animals were evaluated monthly for 12 months using infrared thermography, clinical thermometry, calipers, and color Doppler ultrasonography.

Time Range

12 months of monthly evaluations.

Freshness

Last updated 2026-04-09 19:45:39; freshness should be verified.

Geography

São Carlos, Brazil (21°57’42’’S, 47°50’28’’W).