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Copyright of Veterinaria México is the property of Facultad de Medicina Veterinaria y Zootecnia UNAM and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Author-supplied Abstracts.)

Copyright of Veterinaria México is the property of Facultad de Medicina Veterinaria y Zootecnia UNAM and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The objective of the present study is technological level grading (high, intermediate and low) and its impact on production efficiency, defined as the number of animals sent to market per sow per year and on the main economic indicators: costs, income, profits and profitability, of a random sample of complete cycle pork farms in the four states of Mexico showing greater production. Thirty one point one percent of farms use high technology, 39.9 % use low technology and the remaining 29.5 % can be described as semi-technified. The Kruskall-Wallis non parametric statistical analysis provides conclusive evidence that high level technology yields a lower cost, MXP 9.45 vs 11.20 and 11.84 for the intermediate and low technology levels, respectively (P<0.01). In production efficiency, high technology farms sent more animals to market per year per sow (18.60) than either intermediate (11.67) or low (15.97) (P<0.01). [ABSTRACT FROM AUTHOR]