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Raul G.G.H.,Cuerpo Academico de Produccion y Salud Animal de la FMVZ UAS | Raul G.G.H.,Autonomous University of Sinaloa | Alonso R.R.J.,Cuerpo Academico de Produccion y Salud Animal de la FMVZ UAS | Manuel R.V.J.,Cuerpo Academico de Produccion y Salud Animal de la FMVZ UAS | And 6 more authors.
Revista Electronica de Veterinaria | Year: 2011

With the objective of determine the effect of chromium supplementation on the productive performance and carcass characteristics in pigs during growing-finishing phases, 72 pigs were utilized (36 females and 36 males), with 56 age days and 15.775 ±1.877 kg of average weight, that's were assigned at one of two treatments, in a blocks completely randomized design experimental, at consume isoproteic and isoenergetic diets, supplemented or not with chromium from chromium methionine (MicroplexMR, Zipro Corporation), during 119 days in the months of May-August of 2009 year. The treatments consisted in: 1) Control (C; n = 36); the pigs received a diet at base of ground corn- soybean meal- vegetable oil, without additional chromium, and 2) CrMet (n = 36); similar diet at the control, but with 400 ppb of additional chromium. Six blocks by treatment were formed, each one with six pigs (three females and three male) housed in one pen. The chromium supplementation improved (P<0.05) average daily gain of weight (0.754 vs. 0.774 g), the gain of weight during the trial period (90.457 vs. 92.925 kg), and the final weight (106.32 vs. 108.72); neverless, the chromium addition not modified (P>0.05) the average daily food intake (2.050 vs. 2.096 kg) and feeding efficiency (2.720 vs. 2.706). The chromium addition improved (P<0.05) the back head weight; neverless the remainder carcass characteristics were not modified by the treatments. The results of the present experiment indicate that addition of 400 ppb of chromium from chromium methionine improve the productive performance of the pigs in growing-finishing phase breeding under conditions of high temperature environment, but not modify the carcass characteristics.

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