Fecal N and P of Pigs at Final Growth Stage under Different Feeding Programs

LIU Jing; Miao Fu-rong; FANG Gui-you; YE Ding-cheng; DONG Zhi-yan

doi:10.19303/j.issn.1008-0384.2019.06.008

Volume 34 Issue 6

Sep. 2019

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LIU Jing, Miao Fu-rong, FANG Gui-you, YE Ding-cheng, DONG Zhi-yan. Fecal N and P of Pigs at Final Growth Stage under Different Feeding Programs[J]. Fujian Journal of Agricultural Sciences, 2019, 34(6): 678-683. doi: 10.19303/j.issn.1008-0384.2019.06.008

Citation:

LIU Jing, Miao Fu-rong, FANG Gui-you, YE Ding-cheng, DONG Zhi-yan. Fecal N and P of Pigs at Final Growth Stage under Different Feeding Programs[J]. Fujian Journal of Agricultural Sciences, 2019, 34(6): 678-683. doi: 10.19303/j.issn.1008-0384.2019.06.008

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Fecal N and P of Pigs at Final Growth Stage under Different Feeding Programs

doi: 10.19303/j.issn.1008-0384.2019.06.008

Institute of Animal Husbandry and Vetarinary Medicine Research, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350003, China

Received Date: 2018-11-19
Rev Recd Date: 2019-02-26
Publish Date: 2019-06-28

Abstract

Abstract

Objective The N and P in the excretion of pigs at final growth stage fed under two different feeding programs were compared for forage utilization and ecological effect on the environment. Method A total of 72 growing Duroc×Landrace×Yorkshire pigs weighing 19.5±1.6 kg were randomly divided into two groups with 6 replicates of 6 pigs each. The groups were fed under two different programs:a 3-phase-feeding at 20-50 kg, 50-80 kg, and 80-120 kg pig weight stages or a 5-phase-feeding at 20-35 kg, 35-55 kg, 55-75 kg, 75-95 kg, and 95-120 kg pig weight stages. The fecal N and P of the pigs were determined for the analysis. Result The variation on feeding program did not cause significant difference on the apparent N and P digestibility of the pigs. On the other hand, comparing to the 3-phase-feeding, the pigs under the 5-phase-feeding program showed significant reductions of 5.17% on total dietary N intake (P < 0.05) and of 8.79% on P (P < 0.05), as well as of 6.10% on fecal N (P < 0.05) and of 8.64% on fecal P (P < 0.05). Conclusion Feeding the pigs at final growth stage on the 5-phase program reduced the forage consumption and also the N and P in excretion of the animals resulting in financial as well as ecological benefits.
- 5-phase-feeding,
- 3-phase-feeding,
- fecal N and P,
- pig at final growth stage

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References(13)

References

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