D. Sencic et al., INFLUENCE OF GENOTYPE ON THE SHARE AND DISTRIBUTION OF MUSCLE, FATTY AND BONE TISSUES AS WELL AS COMMERCIAL AND ENERGY VALUE OF PIG CARCASSES, Czech Journal of Animal Science, 43(1), 1998, pp. 23-28
Research was carried out on the carcasses of Large White, Swedish Land
race and Line 3. Carcasses were dissected after Weniger et al. (1963)
method. Carcasses of line 3 (57.10%) and Swedish Landrace (56.49%) had
approximately the same muscle tissue share whereas Large White Carcas
ses had a lower muscle tissue share (50.99%). Different distribution o
f muscle, fatty and bony tissue in carcasses of the investigated pig g
enotypes was determined. Carcasses of Line 3 and Swedish Landrace, whi
ch had approximately the same meatiness, also differed in the share of
muscle, fatty and bony tissue. The largest share of ham tissue and ab
dominal rib part in pig carcass weight was determined in Line 3 (20.29
%, i.e. 10.43%). Muscle tissue of back, shoulder and neck had the high
est share in the weight of Swedish Landrace carcasses (10.96%, 10.94%,
i.e. 6.47%). As a consequence of different tissue shares and distribu
tion, different sales value of pig carcasses of analyzed genotypes was
determined. Higher commercial value was genotype carcasses with highe
r muscle tissue share - Swedish Landrace and Line 3 and lower in Large
White carcasses. Tissues arrangement, i.e. their composition had sign
ificant influence on commercial carcass value. Of total 20 right disse
cted carcasses of each genotype, the largest number of Large White car
casses (11) belonged to commercial class ,,U'', whereas the largest nu
mber of Swedish Landrace carcasses (14, i.e. 16) and Line 3 belonged t
o class ,,E''. Energy value of Swedish Landrace carcasses and Line 3 w
as the same and statistically very significantly lower than energy val
ues of Large White carcasses.