Influence of genotype on estimation of meat yield in swine carcasses w
as researched in this paper. Four groups of pigs (15 males and 15 fema
les, n = 30 in each group) were included in the research. In each grou
p there were pigs of different genotypes as follows: 1st group = (LW x
GL) x GL; 2nd group = (LW x SL) x GL; 3rd group = (SL x LW) x LW and
4th group = pigs of unknown genotype. Pigs were slaughtered in several
slaughterhouses in east Slavonia. Meat yield was determined by total
dissection (TD), according to Weniger et al. (1963) and estimated by 3
different equations. First equation (PF) was taken from a current Cro
atian regulation and other two (MF2 and MF3) were obtained by research
es of Kusec (1996). Equations MF2 and MF3 appeared to be more appropri
ate for lean meat estimation in all groups of pigs, except for the 3rd
group, which had the lowest objectively determined (TD) meat yield. I
n this group equation PF predicted lean meat percentage better than th
e other two. According to average meat yield obtained by dissection (T
D) and by equations MF2 and MF3, swine carcasses from the Ist group we
re classified in class E. Equation PF classified the same carcasses in
class U. On the basis of average objectively determined (TD) and esti
mated meat yields (MF2 and MF3) swine carcasses from 2nd group were cl
assified in class U, while equation PF classified them in class R. Swi
ne carcasses from 3rd group were classified in class R on the basis of
objective determination and estimation by equation PF, while equation
s MF2 and MF3 classified these carcasses in class U. Carcasses of 4th
group of pigs were on the border between classes U and R according to
total dissection (TD), while estimations by all three equations classi
fied these carcasses in class R.