Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Print version ISSN 0102-0935
GOMIDE, A.P.C. et al. Substitution of corn for crude glycerin in diets for finishing pigs. Arq. Bras. Med. Vet. Zootec. [online]. 2012, vol.64, n.5, pp. 1309-1316. ISSN 0102-0935. http://dx.doi.org/10.1590/S0102-09352012000500031.
We evaluated the effect of replacing corn with crude glycerin in diets for finishing pigs. We used 80 pigs, steers, commercial hybrids, with an average weight of 67kg, in an experiment with a completely randomized design with five treatments and eight replicates of two animals per experimental unit. The treatments were 0.0, 4.0, 8.0, 12.0, and 16.0% crude glycerin as a replacement for maize in diets. The substitution of corn with crude glycerin did not affect performance characteristics (P>0.05). We observed an increasing linear effect of the treatment (P<0.05) on backfat thickness and decreasing linear effect of the treatment (P<0.05) on the loss of fluid in the thawing and shearing force. The crude glycerin can replace up to 16.0% of the corn diet for finishing pigs without loss of performance and carcass yield, with improvements in meat quality.
Keywords : pig; alternative feed; deposition; energy; nutrition; protein.