Small flocks of chickens are increasingly being kept in backyards by novice urban farmers for egg production. Creating a healthy environment for the birds is crucial for success. Which of the following statements about the backyard environment is correct?

A dirt coop floor with chopped straw litter needs little maintenance
Each laying chicken needs about 2 square feet inside and 10 square feet of outside space
Strict temperature control in the coop is needed in most regions
The coop should be situated near water holes and dense vegetation

Drugs Used to Treat Reproductive Disorders

By

Robert O. Gilbert

, BVSc, MMedVet, DACT, MRCVS,

Professor
Reproductive Medicine, Department of Clinical Sciences, College of Veterinary Medicine, Cornell University

Last full review/revision Jul 2011

Drugs used to regulate and control the reproductive system are often naturally occurring hormones or chemical modifications of hormones. These are often used to induce or suppress estrus, the time during the reproductive cycle in animals when the female displays interest in mating, often called “heat.” Some are also used to stimulate testicular function or sperm production. Some of the more commonly used hormones include gonadotropin-releasing hormone and related drugs, follicle-stimulating hormone, human chorionic gonadotropin, equine chorionic gonadotropin, estradiol compounds, progesterone and synthetic progestins, testosterone, and prostaglandins. Another hormone, oxytocin, is used to promote milk production and letdown and to cause contraction of the uterus to either induce labor or to enhance contraction of the uterus after the birth.

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