Influence of Low Protein Diets on Water Intake and Urine and Nitrogen Excretion in Growing Pigs

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  • 育成豚における低タンパク質飼料給与が水分摂取および尿と窒素の排泄量に及ぼす影響
  • Influence of Low Protein Diets on Water

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Abstract

The present investigation was conducted to elucidate the influence of low protein diets on water intake and urine and nitrogen excretion in growing pigs. The experiment was carried out based on a 3×3 Latin square design where three Duroc barrows weighing initially 45 kg were allocated to one of three diets protein concentrations of which were 12, 10 and 16%. Thus, there were three groups; treatment 1 (12%), treatment 2 (10%) and control (16%). Water intake was significantly reduced to 73 and 83% for treatment 1 and treatment 2, respectively, compared with that of the control group. Similarly, urine excretion was reduced to 43 and 46% of the control level. Urinary nitrogen was also significantly reduced to 46 and 41% of the control level, and total nitrogen excretion was decreased to approximately 60%. These results suggested that low protein diet reduces water intake, urine and nitrogen excretion.

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