The tissue composition of belly with bones as affected by carcass weight of gilts and barrows
2010
Valis, L.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | Vitek, M.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | David, L.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic) | Pulkrabek, J.,Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic)
A total of 90 pig carcasses were analysed with the aim to determine the effects of sex and carcass weight on the tissue composition of belly with bones. The analysed carcasses represented the current pig production in the Czech Republic with respect to equal sex ratio and the most frequently used hybrid combinations. While the carcass weight was similar between sexes, gilts had a higher carcass lean meat content than barrows (56.90+/-0.580 % and 55.58+/-0.616 %, respectively). The lean meat content in the belly with bones was higher in gilts than in barrows (59.47 vs. 57.32 %, respectively). On the contrary, the content of intermuscular fat was significantly higher in barrows than in gilts (16.97+/-0.638 and 14.89+/-0.571 %, respectively). The contents of skin including subcutaneous fat and bones was similar in both sexes. The carcasses were grouped according to weight (up to 80 kg, 80 - 100 kg, above 100 kg). In gilts, the composition of belly with bones was similar in the weight groups up to 80 kg and 80 - 100 kg (lean contents 60.96+/-1.589 % and 61.38+/-0.878 %, respectively), while the lean content was significantly lower in the group above 100 kg of carcass weight (56.21+/-1.280 %). In contrast, belly composition of barrows was deteriorated already in the weight group 80 - 100 kg. The lean meat contents in the three weight groups of barrows were 61.47, 58.45 and 52.27 %, respectively.
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