Normal Values for the Scrotal Circumference in Rams of Gotlandic Breed

Normal Values for the Scrotal Circumference in Rams of Gotlandic Breed

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Normal Values for the Scrotal Circumference in Rams of Gotlandic Breed Contents (abstract): -To get more lambs you need to choose good fathers. -males with larger testes sire daughters that reach puberty faster and then ovulate more ova during each period. -Testicular size varies w/ breed, age, and time of year. -since no SC (scrotum circumference) values or recommended minimal values have been determined for the Scandinavian domestic sheep breeds. - so in this experiment SC data were recorded for 245 ram lambs and 27 mature rams of the Gotlandic breed which makes up 50% of the sheep population in Sweden. - For the ram lambs, the overall mean SC was 28.9 (±1.9) cm at an average age of 170 (±9) days and mean weight of 53.5 (±7.0) kg, and the mean SC varied between 27.1 and 29.6 cm depending on age and weight. For mature rams (17–54 month old), the mean SC was 32.4(±2) cm. -Threshold values were established to exclude rams with sub-optimal reproductive capacity (to exclude those with abnormal testes or those with small testes) The calculated minimal SC is 26 cm for ram lambs >5.5 months of age with a body weight of
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This note was uploaded on 08/02/2010 for the course ANSCI 100 at Cornell University (Engineering School).

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Normal Values for the Scrotal Circumference in Rams of Gotlandic Breed

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