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

H. Kristina Andersson, Viktoria Olsson, Anja Hullberg, Kerstin Lundström

Forskningsoutput: TidskriftsbidragArtikelPeer review

2 Citeringar (Scopus)

Sammanfattning

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 μmol/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.

OriginalspråkEngelska
Sidor (från-till)147-154
Antal sidor8
TidskriftActa Agriculturae Scandinavica - Section A: Animal Science
Volym53
Utgåva3
DOI
StatusPublicerad - 2003

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