How does the breeding soundness evaluation of a stallion differ from that of a bull?

What will be an ideal response?


A stallion is allowed to mount either a dummy or live mare and ejaculate into an artificial vagina. The entire ejaculate is collected, measured, and examined in order to determine fertility. A bull, on the other hand, is most often confined to a squeeze chute and ejaculated through the use of an electrically charged probe. Only a small portion of the ejaculate is collected and examined.

Anatomy & Physiology

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A vertebrate motor unit is

a. a muscle and the motor neurons that innervate it. b. a muscle fiber and the motor neurons that innervate it. c. a motor neuron and the muscle fibers it innervates. d. a motor neuron and the muscle it innervates. e. none of these.

Anatomy & Physiology

Which cells form myelin in the spinal cord?

A. Oligodendrocytes B. Satellite cells C. Microglia D. Schwann cells E. Astrocytes

Anatomy & Physiology

What flap of elastic cartilage keeps food and liquids from entering the larynx during swallowing?

A) corniculate cartilage B) arytenoid cartilage C) epiglottis D) thyroid cartilage

Anatomy & Physiology

The allantois enlarges to form the

A. kidney. B. gonads. C. ureter. D. urinary bladder. E. urethra.

Anatomy & Physiology