Authors : Guo-Hua Zhang, Candido Pomar and Gong-She Yang
Abstract: The effect of feeding growing pigs with a traditional three-phase or with an individual daily feeding system on growth performance, the excretion of nitrogen and phosphorus was studied in two pens of twenty pigs each. There is no significant difference in average daily feed intake between these two groups (p = 0.11) but the average daily lysine intake is lower significantly (-21.9%) in individual daily feeding group (p<0.001). Compare to the three-phase groups, the protein intake during the experiment period was 13.4% less in the pigs fed with individual daily diet (p = 0.01), however with a greater ADG (+5.3%, p = 0.29). Individual daily feeding pigs reduced nitrogen and phosphorus intake, respectively by 17.0 and 9.7% and the corresponding excretions were reduced, respectively by 40.5 and 31.2%. In conclusion, the individual daily feeding method is an effective method that can reduce the intake of nitrogen and phosphorus and then reduce the nitrogen and phosphorus excretion and the feed cost.
Guo-Hua Zhang, Candido Pomar and Gong-She Yang, 2011. The Impact of Individual Daily Feeding on Animal Performance and Excretion of Nitrogen and Phosphorous in Growing Pigs. Journal of Animal and Veterinary Advances, 10: 2980-2985.