Education Commons^™

G85-748 Prevention And Control Of Swine Dysentery, Gerald E. Duhamel, Alex Hogg, Barbara E. Straw

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes the causes and symptoms of swine dysentery and offers management recommendations and treatment procedures for its prevention and control.

Swine dysentery is a highly contagious disease of growing and finishing pigs. First described in Indiana in 1921, it has been called black scours, bloody scours, and vibrionic dysentery.

Swine dysentery causes important financial losses because of reduced feed efficiency and lower weight gain, costs of medication and additional animal care, and death. Substantial costs may result from loss of sales of breeding stock, or depopulation when necessary. Serpula (Treponema) hyodysenteriae, a spiral bacterium, is the cause …

G85-755 How To Set Goals For Your Breeding Program, Jeffrey F. Keown

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes how to determine which trait(s) to select for, and how multiple trait selection affects genetic progress.

Dairy producers are often concerned with placing emphasis on different production traits in their breeding program. Selecting on only economically important traits should be the objective of every producer. The use of artificial insemination (A.I.) sires is the most economical and productive way to increase the genetic potential of the herd.

A cow's record is a measure of her genetic potential, which is modified by the environment in which she is kept. Environmental factors that directly influence a cow's record include …