engleski

Economic consequences of different lean percentage estimation methods

The economic effects of the choice of two different lean percentage estimation methods and terminal sire breed were investigated on 53 pig carcasses divided in two groups. In the 1st group were progeny of Pietrain used as terminal sire (n=25) and in 2nd the progeny of Large White terminal sire. It was found that the breed of terminal sire haven't had influence on cold carcass weight and fat thickness measured for TP method of lean percentage estimation. Inclusion of Pietrain as terminal sire had influence on MLD thickness measured for TP and INS methods which was significantly higher, while fat thickness measured for instrumental method was significantly lower (p<0.01). Carcasses of the same group had higher lean percentage estimated by TP and INS methods (p<0.05 and p<0.01, resp.). Also, different methods of lean percentage estimation resulted in different classification of the carcasses into SEUROP classes. The choice of the lean percentage estimation method had no significant effect on the price of the carcasses from 2nd group which had Large White as terminal sire, while in pig carcasses from the 1st group (Pietrain as terminal sire), the choice of lean percentage method of estimation determined the price of the carcasses, and by this also economic surplus (or loss) of the producers. It is concluded that both methods are equally applicable in the case of Large White crossbreeds, while caution should be taken in the case of pig carcasses originated from Pietrain as terminal sire because carcasses of such pigs reached higher prices when estimated by instrumental method.

lean percentage estimation ; market ; pigs ; value

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