Vas Deferens

Vas Deferens– (ductus deferens), the duct derived from the mesonephric duct that connects the tail of the epididymis to the ampulla and transports sperm into the pelvic urethra.

 

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Birth Weight-(beef cattle)

Birth Weight -(beef cattle)The weight of a calf within 24 hours after birth.

  • Estimated Progeny Differences- (EPD’s) of the sire and dam are used to evaluate the genetic performance of the sire and dam to help determine birth weight before

Haemophilus Somnus

Haemophilus Somnus-A bacterial infection.

Clinical Symptoms

  • fever
  • incoordination
  • head-pressing
  • central nervous system signs

Prevention

  • vaccine (two injections)
    • chlortetracycline, 350 mg/head/day for 28 days
    • oxytetracycline, 3-5 mg/lb daily for 4 days

Treatment

  • Sulfonamides
  • Oxytetracycline

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Bovine Virus Diarrhea (BVD)

Bovine Virus Diarrhea (BVD) is a disease caused by a virus, resulting in numerous problems, such as damage to the digestive and immune systems, pneumonia, abortions, calf deformities, and others. Incomplete vaccination programs, such as those omitting a needed booster …

Outbreeding

Outbreeding– The process of continuously mating females of the herd to unrelated males of the same breed.

Forms of Outbreeding:

  • Outcrossing- the mating of unrelated animals
  • Grading up- the mating of purebred sires to nondescript or grade females and