Effects of low-protein diet including raw potato starch on nitrogen excretion and ammonia emission in finishing pigs

Effects of low-protein diet including raw potato starch on nitrogen excretion and ammonia emission in finishing pigs

This experiment was designed to assess the effects of a low-protein diet including raw potato starch (RPS) on nitrogen excretion and ammonia emission in finishing pigs. Four castrated male pigs (WLD, 64.0kg) were used for a crossover nitrogen balance study, and another 8 castrated male pigs (WLD, 70...

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Veröffentlicht in:Nihon Chikusan Gakkaiho 2012/08/25, Vol.83(3), pp.271-280
Hauptverfasser: HONDA, Akiyuki, SHIMAZAWA, Koichi, ONO, Yoshitaka
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Sprache:eng ; jpn
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ammonia
low-protein
nitrogen excretion
pig
potato starch
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SHIMAZAWA, Koichi
ONO, Yoshitaka
description This experiment was designed to assess the effects of a low-protein diet including raw potato starch (RPS) on nitrogen excretion and ammonia emission in finishing pigs. Four castrated male pigs (WLD, 64.0kg) were used for a crossover nitrogen balance study, and another 8 castrated male pigs (WLD, 70.0kg) were for an ammonia emission study in the windowless pigpen. Pigs in each study were divided into two groups, the control group fed with a conventional fattening diet (CP15.7%) and the treatment group fed with a low-protein diet (CP11.6%) containing 20% RSP. Although the dietary treatment with low-protein RPS increased the fecal nitrogen content (P
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Four castrated male pigs (WLD, 64.0kg) were used for a crossover nitrogen balance study, and another 8 castrated male pigs (WLD, 70.0kg) were for an ammonia emission study in the windowless pigpen. Pigs in each study were divided into two groups, the control group fed with a conventional fattening diet (CP15.7%) and the treatment group fed with a low-protein diet (CP11.6%) containing 20% RSP. Although the dietary treatment with low-protein RPS increased the fecal nitrogen content (P&lt;0.01), the treatment reduced the urinary and total (urinary and fecal) nitrogen contents (P&lt;0.01). The amount of in vitro ammonia emission from the excreta mixture was lower in the low-protein RPS treated pigs than in the control pigs (P&lt;0.05). The ammonia concentration in the windowless pigpen was also less in the low-protein RPS feeding (P&lt;0.01). There were no differences in the growth rate, feed intake and feed conversion ratio between the two experimental groups. 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subjects ammonia
low-protein
nitrogen excretion
pig
potato starch
title Effects of low-protein diet including raw potato starch on nitrogen excretion and ammonia emission in finishing pigs
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