Use of Mailed Questionnaire Data in a Study of Swine Congenital Malformations

A study was designed to evaluate the representativeness and accuracy of data collected on swine birth defects by mailed questionnaire. The study was conducted in the three contiguous counties of Johnson, Lafayette and Pettis in west central Missouri. A personal interview survey and an examination of malformed pigs were used to validate mailed questionnaire data which estimated the frequency and distribution of malformations observed in pigs over a six month period. This period between April and September 1970 was defined as the study period. The results were compared to a previous six month period (April-September 1969), or baseline period, when only the mailed questionnaire was used. The frequency and distribution of the reported malformations by type did not differ significantly (at the p=0.05 level) between the study period (70.4% response) and the baseline period (31.3% response). Evaluation of this and additional data collected during the study suggested that the mailed questionnaire can be used effectively to estimate the frequency and distribution of swine malformations within a defined geographic area.     

A procedure for the examination of the liver and pancreas in dogs

A technique is described for the visual examination and biopsy sampling of the affected organ in canine liver and pancreatic dysfunction.
Résumé . On a décrit une technique pour l'examen visuel et la biopsie d'essais de l'organe affecté dans le foie du chien et le mauvais fonctionnement du pancreas.
Zusammenfassung . Man hat eine Technik beschrieben, für die Sichtprobe und die Biopsie-Probenahme des angegriffenen Organs in der Hundeleber und in der Bauchspeichelschlechtfunktion.