Effects of sex, feed and pre-slaughter routines on technological meat quality in carriers and non-carriers of the RN- allele

Abstract

The aim of this project was to study the effects of feeding system (dry or wet feeding with whey), dietary lysine level and pre-slaughter routines on technological meat quality in entire male, female and castrated male pigs, which were carriers or non-carriers of the RN- allele. The feeding system only affected the yield of processed meat, resulting in lower Napole yield (87.5% vs 89.4%) for meat of whey fed pigs. Further, lower dietary lysine levels resulted in higher drip loss of the meat compared with high dietary levels (5.3% vs 4.8%). Mixing of unfamiliar pigs prior to slaughter led to meat with lower internal reflectance values (28.3 vs 32.2) and glucose + G-6-P concentrations of the meat juice (46.3 vs 49.7 mumol/ml) compared with pen-wise slaughtering. In comparison with non-carriers, RN- carriers had significantly lower ultimate pH, shear force values and water-holding capacity. Mixing of non-carrier pigs prior to slaughter gave higher Napole yield compared with those handled pen-wise. Females had lower ultimate pH and higher Napole yield compared with entire males

Published in

Acta Agriculturae Scandinavica, Section A - Animal Science
2003, volume: 53, number: 3, pages: 147-154
Publisher: TAYLOR & FRANCIS AS

SLU Authors

• Andersson, Kristina

  • Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
    

• Olsson, Viktoria

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

• Hullberg, Anja

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

• Lundström, Kerstin

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Food Science

Publication identifier

• DOI: https://doi.org/10.1080/09064700310002404

Permanent link to this page (URI)

https://res.slu.se/id/publ/122