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Compendio de Ciencias Veterinarias

On-line version ISSN 2226-1761


RODRIGUEZ, I; LEIVA, A; MESA, A  and  GONZALEZ, D. Evaluation of productive parameters in pig carcasses marketed in the District of Fram - Department of Itapúa, Paraguay . Compend. cienc. vet [online]. 2021, vol.11, n.1, pp.20-26. ISSN 2226-1761.

ABSTRACT. Research was conducted in the department of Itapúa, Paraguay to evaluate the productive parameters in pigs marketed in the country. The following parameters were analyzed: live weight (LW), hot carcass weight (HCW), cold carcass weight (CCW), hot carcass yield (HCY), cold carcass yield (CCY) and depletion (D) from a total of 6,476 animals coming from grouped farms according to the distance to the slaughterhouse in less than 50 km, from 50 to 100 km and more than 100 km. Data were analyzed with R statistical software, applying the Kruskal-Wallis Non-Parametric Test and the Mann-Whitney test as a pos hoc test; to reduce the dimension and to explain the observed variations the principal component analysis mas used (PCA). Significant differences were detected in most of the parameters evaluated (p˂0,01); however, the (CCY) was similar among the farms located farther than 100 km and from 50 to 100 km, as well as the depletion (D) among the farms distant in less than 50 km and more than 100 km (p˃0,05). In general, productive suppliers that were farther from the slaughter center showed better productive parameters. The PCA explained 81,97% of the total variance, being associated to the CP1, the LW, HCW, CCW and being linked to the CP2, HCY and CCY.

Keywords : pigs; carcass; depletion; yield; integrated system.

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