L. SLADEK and V. MIKULE
Mendel University in Brno, Faculty of Agronomy, Department of Animal Breeding, Brno 613 00, Czech Repubic
SLADEK, L. and V. MIKULE, 2014. Factors with an influence on a content of intramuscular fat in pork meat. Bulg. J. Agric. Sci., 20: 909–914
The aim of the study was to find out factors with an influence on a content of intramuscular fat in tested carcass pig hybrids (Czech Large White x Czech Landrace) x Duroc (CLW x CL) x D and (Czech Large White x Czech Landrace) x (Duroc x Belgian Landrace) (CLW x CL) x (D x BL). An influence of hybrid combination, sex, slaughter weight and lean meat content on a content of intramuscular fat (IMF) in musculus longissimus lumborum et thoracis (MLLT) was studied in an experiment with 60 tested carcass pigs. A statistical very highly conclusive difference P≤0.001 was found in measured values of IMF between both hybrid combinations (CLW x CL) x D (2.71%) and (CLW x CL) x (D x BL) (1.95%). Higher content of IMF in MLLT was determined in hogs (2.55%) in comparison to gilts (2.11%). The highest number of carcass pigs (21) was in weight group 110 – 119.9 kg with highest average IMF content on a level of 2.42%. The lowest content of IMF (2.18 %) in MLLT it was determined in pigs from weight group under 100 kg. The highest representation of carcass pigs (28.3%) it was in an animal group with 2.01 – 2.5% of IMF. The fewest animals (15%) were in group with content of IMF in MLLT more than 3.01%. The highest lean meat percentage (59.90%) was determined in a group of carcass pigs with a content of IMF 1.5% and less. On the contrary the lowest average lean meat percentage (57.26%) was determined in carcass pigs with a content of IMF 3.01 and more.