Abstract
Objective of this paper was to determine the distribution of tissues in four major carcass side parts from fatteners of Swallow-Belly Mangalitsa and Moravka breeds. The study included 42 animals (male castrated and female pigs) of Swallow-Belly Mangalitsa strain (LM, n=19) and Moravka (M, n=23). Animals were kept and reared in the same farm conditions with free ranges. During fattening, animals were fed two complete mixtures containing 15 and 13% crude proteins. Dissection of left carcass sides and calculation of the meat percentage were carried out according to EU reference method (EC, No.3127/94). Obtained data was processed using GLM procedure of the software package SAS 9.1.3 (SAS Inst.Inc., 2002-2003). Pre-slaughter body mass influenced variation of the mass of warm and cooled carcass sides (P<.0001). Pre-slaughter body mass of SBM and M had impact on variation of the subcutaneous fat tissue and skin in the thigh and shoulder, and on bone tissue in the shoulder. Fatteners of Moravka breed had higher average mass of back-loin part of the carcass sides (P<0.01) and mass of subcutaneous fat tissue including the skin (P<0.05) compared to Swallow-Belly Mangalitsa. Share of muscle tissue of this carcass part in total mass of muscle tissue in all four carcass side parts was higher in Moravka breed pigs (+2.18%, P<0.01). Male castrated pigs had lower values of average mass of the thigh/leg (P<0.05), lower values of muscle tissue mass in the thigh/leg (P<0.01) and higher share of bone tissue (P<0.05) compared to female pigs. In the belly-rib part, castrates had less intermuscular fat tissue (P<0.05) and bone tissue (P<0.05) than female pigs.
Highlights
In recent years, there has been increasing interest in autochthonous breeds, and in regard to their gene preservation and in their meat products manufactured in traditional way
Autochthonous breeds are reared in the open system or farm conditions, and they are fed in traditional way or by using complete mixtures
Objective of this study was to determine the distribution of tissues in carcass sides and four major carcass side parts in fatteners of Swallow-Belly Mangalitsa and Moravka breeds, depending on the pre-slaughter body mass and animal sex
Summary
There has been increasing interest in autochthonous breeds, and in regard to their gene preservation and in their meat products manufactured in traditional way. 30-35% of meat in carcass sides (Egerszegi et al, 2003; Kralik and Petričević, 2001, Petrović et al, 2009; 2010). Moravka is a breed of combined production abilities, with more meat contained in the carcass side and less fat, compared to Mangalitsa (Petrović et al, 2009, 2010). Autochthonous breeds are reared in the open system or farm conditions, and they are fed in traditional way or by using complete mixtures. Objective of this study was to determine the distribution of tissues in carcass sides and four major carcass side parts (thigh/leg, shoulder, back-loin and belly-rib parts) in fatteners of Swallow-Belly Mangalitsa and Moravka breeds, depending on the pre-slaughter body mass and animal sex
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