Results of Swine Breeding Research
Craft, William Arthur![Results of Swine Breeding Research](https://support.digitalhusky.com/media/annotations/sorted/255/25548097/CHSBZCOP0325548097.jpg)
Excerpt from Results of Swine Breeding Research: At the Regional Swine Breeding Research Laboratory and the Cooperating State Experiment Stations of Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, Oklahoma, South Dakota, and WisconsinStructural and physiologic abnormalities in the reproductive tract were found to be responsible for some of the irregular breeding, low fertility, or complete sterilit...