Document Type

Thesis - Open Access

Award Date

1951

Degree Name

Master of Science (MS)

Department

Animal Science

Abstract

The number of female swine which do not settle in producer's herds, both purebred and commercial, is thought to be at least 10%. Controlled studies at experimental stations indicate that this figure may be to low. Unconfirmed reports from several mid-west experimental stations indicate that between 20 and 30% of the female swine bred to farrow in the spring of 1950 failed to farrow. Approximately 30% of the gilts and sows bred in the South Dakota State College Swine Farm in the fall of 1949 failed to farrow, Also a considerable number of gilts which were to be bred were never observed to be in estrus during the breeding season. These gilts consequently were never bred during that breeding season.

Library of Congress Subject Headings

Swine -- breeding

Description

Includes bibliographical references

Format

application/pdf

Number of Pages

66

Publisher

South Dakota State University

Rights

No Copyright - Non-Commercial Use Only
http://rightsstatements.org/vocab/NoC-NC/1.0/

Share

COinS