Effects of Increased Pork Hot Carcass Weights. II: Loin Quality Characteristics and Palatability Ratings

Emily A. Rice, Annie B. Lerner, Brittany A. Olson, Lauren L. Prill, Lindsey N. Drey, Hannah E. Price, Jessica E. Lowell, Bailey N. Harsh, Kayla E. Barkley, Lauren T. Honegger, Elaine Richardson, Jason C. Woodworth, John M. Gonzalez, Mike D. Tokach, Joel M. Derouchey, Steve S. Dritz, Robert D. Goodband, Matt W. Allerson, Brandon Fields, Steven D. ShackelfordDavid A. King, Tommy L. Wheeler, Anna C. Dilger, Dustin D. Boler, Travis G. O’quinn

Research output: Contribution to journalArticlepeer-review

Abstract

The objective of this study was to evaluate the effects of increased pork hot carcass weight on loin quality and palatability of top loin chops. Pork loins (N = 200) were collected from 4 different hot carcass weight groups: A light weight (LT; less than 111.8 kg), medium-light weight (MLT; 111.8 to 119.1 kg), medium-heavy weight (MHVY; 119.1 to 124.4), and a heavyweight group (HVY; 124.4 and greater). Following fabrication, chops were assigned to fat and moisture analysis, Warner-Bratzler shear force (WBSF), consumer sensory panels, or trained sensory panels. Chops from the HVY group were rated as more (P < 0.05) tender compared to chops from the LT carcasses. Addition-ally, chops from the HVY weight group had greater (P < 0.05) consumer overall like ratings compared to chops from both the LT and MLT groups. Carcass weight did not affect (P > 0.05) consumer flavor liking ratings. Hot carcass weight treatment did not contribute (P > 0.05) to the percentage of chops rated acceptable for flavor and overall lik-ing. The greatest (P < 0.05) percentage of samples were rated acceptable for juiciness for chops from the HVY weight group, and the lowest (P < 0.05) percentage of acceptable ratings for tenderness were for chops from the LT weight group. Both initial and sustained juiciness from MHVY carcasses were rated as more (P < 0.05) juicy compared to chops from both MLT and LT carcasses by trained sensory panelists. Additionally, chops from the LT carcasses had the lowest (P < 0.05) myofibrillar tenderness ratings. Chops from MHVY and HVY carcasses were similar (P > 0.05), with greater (P < 0.05) overall tenderness ratings compared to chops from LT carcasses. These results indicate chops from heavier weight carcasses may have improved tenderness and juiciness compared to chops from lighter carcasses.

Original languageEnglish (US)
Pages (from-to)447-456
Number of pages10
JournalMeat and Muscle Biology
Volume3
Issue number1
DOIs
StatePublished - 2019

Keywords

  • consumer
  • heavy pigs
  • hot carcass weight
  • palatability
  • pork quality

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Food Science

Fingerprint

Dive into the research topics of 'Effects of Increased Pork Hot Carcass Weights. II: Loin Quality Characteristics and Palatability Ratings'. Together they form a unique fingerprint.

Cite this