Risk Factors for Prolonged Birth Interval in Modern Swine Farms in Vietnam

• DOI: 10.5398/tasj.2022.45.2.173
• Publication Date: 2022-05-19T06:47:57Z
• Authors: N. H. Nam; P. Sukon
• Keywords: Litter

The present study aimed to investigate factors influencing the prolonged birth interval in swine, defined as a longer than 30 minutes. In total, 3380 piglets born from 239 Landrace x Yorkshire sows 5 farms North of Vietnam were included this study. dependent variable was interval, and independent variables parity, gestation length, litter size, relative order, crown-rump weight, body-mass index, ponderal piglet’s gender, dead-born piglet, oxytocin use. Important for determined by using Generalized Linear Mixed Models. incidence 14.5%. Crown-rump length (OR=1.09, 95% CI=1.06-1.14), weight (OR=1.06, CI=1.02-1.09), piglet (OR=1.98-2.08, CI=1.38-2.97) positively associated with while size (OR=0.90, CI=0.96-0.94) negatively correlated interval. decreased an increase bottoming at order 40-80, then increased end parturition. last had highest risk experiencing intervals. This indicated that swine common; therefore, careful farrowing supervision should be practiced reduce stress piglets.