PRODUCTIVE PERFORMANCES OF TWO ITALIAN CROSSBRED PIGS FED HIGH ENERGY DIET

R. FORTINA, CAROLA LUSSIANA, VANDA MALFATTO, A. MIMOSI, SONIA TASSONE

Abstract


The aim of the trial was to compare the average daily gain (ADG), the carcass characteristics, and the meat and fat quality of 18 Italian crossbred pigs fed high energy diets formulated for improved genotypes (digestible energy: DE >14 MJ/kg DM). Nine “Fumati” crossbreds (Large White x Mora Romagnola; average initial live weight: 84 kg) and nine “Borghigiana” (Large White x Nera di Parma; average initial live weight: 90 kg), reared under similar environmental and nutritional conditions, were slaughtered at the average final weight of 180 kg (285 days). Calculated dry matter intake (DMI) and feed conversion index (FCI) were similar; no significant differences were observed with respect to average daily gain (ADG: 679 vs. 658 g/d). At slaughtering, the dressing percentage of the Fumati was significantly lower than that of the Borghigiana (80.9 vs. 84.5). The Fumati seemed more prone to fattening than the Borghigiana, as confirmed by the statistically higher percentage of belly (14.9 vs.12.2), and fat (3.9 vs. 2.4) and marbling of M. longissimus dorsi (2.7 vs. 1.4). On colour analysis, the Fumati had statistically higher L* and hue values, and lower a* of M. longissimus dorsi. The fatty acid composition of meat was similar between crossbreds; backfat fatty acid composition of the Fumati showed a significantly higher percentage of saturated fatty acids (SFA), and lower amounts of monounsaturated and polyunsaturated fatty acids (MUFA and PUFA) than in the Borghigiana. Results showed that performances and meat quality of local crossbreeds still bred in semi-intensive systems, like Fumati and Borghigiana, can be positively influenced when fed diets considered suitable for improved pig genotypes.


Keywords


nutrition; pig crossbreds; performances; meat quality; fat quality

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LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Faculty of Animal Science and Biotechnologies
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