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Sexual activity patterns in rams.

D E Bernon, J N Shrestha

Canadian Journal of Comparative Medicine : Revue Canadienne De Medecine Comparee

|January 1, 1984

Summary

Researchers developed a rapid screening method for sexually aggressive rams by observing attempted mounts. Two ten-minute observation periods effectively assess short-term sexual activity levels in rams.

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Area of Science:

Animal Science
Reproductive Biology
Behavioral Science

Background:

Assessing sexual behavior in rams is crucial for selective breeding and reproductive management.
Understanding breed-specific differences in sexual activity can optimize breeding programs.
Previous methods for evaluating ram sexual behavior may lack efficiency for rapid screening.

Purpose of the Study:

To develop a rapid screening method for sexually aggressive rams.
To measure and compare sexual activity levels across different ram breeds and crossbred strains.
To identify reliable behavioral indicators of sexual performance in rams.

Main Methods:

Observed sexual behavior in reproductively experienced rams from various breeds (Suffolk, Finnish Landrace) and crossbred strains.
Recorded patterns of sexual activity, including attempted mounts and investigation periods.
Utilized two sequential ten-minute observation periods for data collection.

Main Results:

A set sequential pattern of sexual activity is not always observed in experienced rams.
The estrual status of the ewe can influence components of ram sexual behavior.
The number of attempted mounts is a viable selection tool, with mounts following investigation most predictive of coitus.

Conclusions:

Two sequential ten-minute observation periods are sufficient for rapid screening of rams.
Attempted mounts following investigation serve as a reliable indicator for selecting sexually active rams.
This screening method can aid in identifying rams with high sexual activity levels for breeding purposes.

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