Abstract
Abstract The objective was to compare growth and body composition of pigs sired by boars from the show pig industry to those sired by modern commercial genetic lines. Data included one group of 174 male pigs from 16 sires and 50 dams. Pigs were sired by Large White (LW) show pig sires (SHOW) or one of two maternal LW commercial genetic lines (W or P). Dams of all pigs evaluated were from line P. Pigs were weaned at 27 d of age and placed into a mechanically ventilated nursery (0.23 m2 per pig). After 35 d in the nursery, pigs moved to a naturally ventilated finisher (0.74 m2 per pig) with fully slatted floors. Weight, 10th rib backfat, and loin eye area (LEA) were collected at 156 d of age (backfat and LEA adjusted to 114 kg). Data was analyzed using PROC GLM with a fixed effect of genetic line and covariates of weaning age and birth weight. A one day increase in weaning age increased (P < 0.01) 156 d weight by 658 g. Nursery average daily gain (ADG) was greater (P < 0.01) for pigs sired by SHOW and W when compared to P (414 and 397 vs. 351 g, respectively) yet finishing ADG did not differ (P > 0.05) (821 and 817 vs. 797 g, respectively). Backfat was thicker (P < 0.01) for SHOW when compared to W or P (16.7 vs. 14.7 and 14.7 mm, respectively) and LEA was larger (P < 0.05) for SHOW when compared to W or P (47.3 vs. 44.8 and 44.0 cm2, respectively). Finishing lean gain per day was greater (P < 0.05) for SHOW and W when compared to P (323 and 322 vs. 309 g per d, respectively). Results suggest pigs sired by LW SHOW are fatter, heavier muscled, and have comparable lean growth to those sired by commercial LW genetic lines.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
