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Phosphorus digestibility response of growing pigs to phytase supplementation of triticale distillers' dried grains with solubles.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Xue, Peng Adeola, Olayiwola |
| Copyright Year | 2015 |
| Abstract | An experiment was conducted in growing pigs to determine the true total-tract digestibility (TTTD) of P in triticale distillers' dried grains with solubles (DDGS) with or without phytase using the regression method. Six diets were formulated in a 3 × 2 factorial arrangement, including 3 levels of triticale DDGS (300, 400, or 500 g/kg) and phytase (0 or 500 phytase units [FTU]/kg of diet). A total of 48 barrows (initial BW 22.2 ± 1.3 kg) were assigned to the 6 diets in a randomized complete block design. There was a 5-d adjustment period followed by a 5-d total collection of feces. The results show that P intake, fecal P output, and digested P increased linearly ( < 0.01) with increasing level of DDGS in diets. There was a main effect ( < 0.001) of phytase on apparent total-tract digestibility (ATTD) of P. In diets without added phytase, the ATTD of P in triticale DDGS was 65.0, 67.7, and 63.2% for the diets with 300, 400, and 500 g/kg triticale DDGS, respectively; the corresponding values for diets with added phytase were 77.3, 76.3, and 75.7%. By regressing daily digested P against daily P intake, the TTTD of P was estimated at 75.4% for triticale DDGS or 81.1% with added phytase, respectively. In conclusion, the TTTD of P in triticale DDGS without supplemental phytase was 75.4%, and it was 81.1% in the presence of phytase at 500 FTU/kg of the diet, but the difference was not statistically significant. For triticale DDGS, the supplementation of 500 FTU/kg phytase in diet could increase the ATTD of P ( < 0.001) but not the TTTD of P. |
| File Format | PDF HTM / HTML |
| DOI | 10.2527/jas.2014-7662 |
| PubMed reference number | 26020749 |
| Journal | Medline |
| Volume Number | 93 |
| Issue Number | 2 |
| Alternate Webpage(s) | https://www.animalsciencepublications.org/publications/jas/pdfs/93/2/646 |
| Alternate Webpage(s) | https://doi.org/10.2527/jas.2014-7662 |
| Journal | Journal of animal science |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
