THE EFFECTS OF GENOTYPE, CHROMIUM PICOLINATE SUPPLEMENTATION, SEX, AND THEIR INTERACTIONS ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS, AND MUSCLE QUALITY IN PIGS
Barrows gained faster (P < .001) and consumed more feed (P < .001) than gilts, yielding heavier (P < .001) carcasses, and heavier (P < .05) wholesale cuts. Gilts had less backfat (P < .001) and larger (P < .01) LMA, and tended to gain more efficiently than barrows.
Carrier pigs had lower pH values, higher CIE L* values, higher drip loss, and lower protein solubility (P < .05), all indicators of decreased quality. Chromium supplementation resulted in pork with higher (P<.05) CIE a*, CIE b*, and Chroma C values. Halothane carrier barrows and all gilts that were not fed chromium had lower lipid muscle content than NN barrows (P < .05).
Gilts had higher CIE L* and a* values (P < .001), less lipid, and higher moisture percentage (P < .02) than barrows. Chromium picolinate did not negatively affect pork muscle quality.
Advisor:Dr. Cynthia Wood; Dr. Jim Claus; Dr. Allen Harper
School Location:USA - Virginia
Source Type:Master's Thesis
Keywords:animal and poultry sciences
Date of Publication:02/13/1998