Friday, February 9, 2007

Low incidence of infertility in young bucks

Boer buck at Langston University
Researchers at Langston University conducted a study to determine the incidence of infertility (based on breeding soundness examination) in young bucks that completed the Langston Buck Test from 1999 to 2006. Data was collected from 7 tests and 392 bucks.Only 15 bucks or 3.8 percent failed to pass the breeding soundless examination.

Semen was obtained from each buck and evaluated for sperm concentration, motility, and morphology. Eleven bucks had low sperm concentrations or no sperm. Four bucks had low motility.The average sperm concentration was 1.59 billion sperm/ml.

Only five bucks had scrotal circumferences of less than 24 cm. The average scrotal circumference of all bucks was 26.3 cm. Researchers concluded that there is a low rate of fertility in well-managed buck kids older than 6 months.

Source: American Society of Animal Science Southern Section Abstracts, February 3-6, 2007, Mobile, AL.