ANNEX
Methods for grading pig carcasses in Romania
PART 1
FAT-O-MEAT’ER (FOM)
1.
Grading of pig carcases is carried out by means of the apparatus known as ‘Fat-O-Meat’er (FOM)’.
2.
The apparatus shall be equipped with a probe of 6 millimetres diameter containing a photodiode of the Siemens SFH 950/960 type and having an operating distance of between 3 and 103 millimetres. The results of the measurements are converted into estimated lean meat content by means of a computer.
3.
The lean meat content of the carcasse shall be calculated according to the following formula:
Ŷ = 60,26989 – 0,81506 * X1 + 0,20097 * X2
where:
Ŷ
=
the estimated percentage of lean meat in the carcasse
X1
=
thickness of fat, including rind, in millimetres, measured at 7 cm from the midline
X2
=
thickness of the muscle in millimetres, measured at 7 cm from the midline, between the third and fourth last rib
This formula shall be valid for carcasses weighing between 50 and 120 kilograms.
PART 2
OPTIGRADE-PRO (OGP)
1.
Grading of pig carcasses shall be carried out by means of the apparatus termed ‘OptiGrade-Pro (OGP)’.
2.
The apparatus shall be equipped with an optical probe 6 mm in diameter, one infrared photodiode (Siemens) and a photo transistor (Siemens). The operating distance shall be between 0 and 110 mm. The results of the measurements are converted into estimated lean meat content by means of a computer.
3.
The lean meat content of the carcasses shall be calculated using the following formula:
Ŷ = 61,21920 – 0,77665 * X1 + 0,15239 * X2
where:
Ŷ
=
the estimated percentage of lean meat in the carcasse
X1
=
thickness of fat, including rind, in millimetres, measured at 7 cm from the midline, between the third and fourth last rib
X2
=
thickness of the muscle in millimetres, measured at 7 cm from the midline, between the third and fourth last rib
This formula shall be valid for carcasses weighing between 50 and 120 kilograms.