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The aim of this study was to evaluate meat quality of first-farrowing sows differing in regard to the rate of post-mortem glycolytic and protein changes. Normal quality meat (RFN) (n=48) was compared with meat characterised by slower glycolytic changes (RFN-s) (n=9). The evaluation of meat quality comprised measurements of the pH value, IMP/ATP ratio, electrical conductivity, proximate composition...
Used were two groups of crossbred littermate gilts. Group A gilts (n = 34) were slaughtered after rearing their first litter, while group B (n = 39) were gilts fattened according to the procedure commonly used in pig production, and then slaughtered at about 106 kg body weight (BW). At slaughter, significantly older were gilts A than gilts B (371.03 vs. 179.64 days). BW at slaughter was 153.50 kg...
The aim of the study was to determine the changes in the content of major proteins, glucose and selected hormones in the blood of piglets during the first 7 days of neonatal life. The study involved an entire litter of eight newborn piglets of F1 hybrids (Polish White Large x Polish Landrace) delivered from one sow in the second gestation. In blood samples collected directly after parturition (before...
Seventy carcasses were assessed of sows slaughtered 31 days after the first farrowing. The carcasses were divided into three weight groups: less than 115 kg (n=24), from 115 to 125 kg (n=21) and above 125 kg (n=25). Generally, a rise in carcass weight was followed by an increase in backfat thickness and in loin eye area. However, significant intergroup differences were identified In this respect only...
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