肉豚へのアミノ酸添加低タンパク質飼料の給与による尿量,窒素排泄量およびアンモニア発生量の低減効果  [in Japanese] Effect of Feeding a Reduced Protein, Amino Acid-Supplemented Diet on the Excretion of Urine and Nitrogen, and the Ammonia Emission from Slurry in Growing Pigs  [in Japanese]

Access this Article

Search this Article

Author(s)

    • 山本 朱美 YAMAMOTO Akemi
    • (財)畜産環境整備機構畜産環境技術研究所 Livestock Industry's Environmental Improvement Organization, Institute of Livestock Industry's Environmental Technology
    • 高橋 栄二 TAKAHASHI Eiji
    • (財)畜産環境整備機構畜産環境技術研究所 Livestock Industry's Environmental Improvement Organization, Institute of Livestock Industry's Environmental Technology
    • 古川 智子 [他] FURUKAWA Chieko
    • (財)畜産環境整備機構畜産環境技術研究所 Livestock Industry's Environmental Improvement Organization, Institute of Livestock Industry's Environmental Technology
    • 伊藤 稔 ITOH Minoru
    • (財)畜産環境整備機構畜産環境技術研究所 Livestock Industry's Environmental Improvement Organization, Institute of Livestock Industry's Environmental Technology
    • 古谷 修 FURUYA Shu
    • (財)畜産環境整備機構畜産環境技術研究所 Livestock Industry's Environmental Improvement Organization, Institute of Livestock Industry's Environmental Technology

Abstract

肉豚に, 欠乏するアミノ酸を添加した低タンパク質飼料を給与し, 尿量, 糞尿への窒素排泄量およびアンモニア発生量に対する影響を調べた。体重約35kgの去勢豚12頭を代謝ケージに収容し, 標準タンパク質飼料 (CP16.4%, 標準CP区) またはアミノ酸添加低タンパク質飼料 (CP10.9%, 低CP区) をそれぞれ6頭に28日間にわたり不断給与した。試験開始後8~12日目に窒素出納試験を実施し, また, 28日目に糞および尿を採取してアンモニアの発生量を調べた。その結果, 増体量, 飼料摂取量および飼料要求率ではCP水準による差は認められなかったが, 飲水量は低CP区で標準CP区の約87%と少なくなり, 尿量は低CP区で67%に低減する傾向を示した。また, 糞および尿への窒素排泄量は, 低CP区では標準CP区に比較してそれぞれ82%および50%に, また, 総窒素排泄量は62%に減った。さらに, 糞尿混合物からの発生アンモニア濃度は, 混合1日目で, 低CP区は標準CP区の36%と著しく低くなった。以上の結果より, 飼料中のアミノ酸バランスを整えた低CP飼料を肉豚に給与すれば, 発育成績は損なわずに, 糞尿への窒素排泄量が減るばかりでなく, 尿量およびアンモニア発生量も低減されることが示された。

An experiment was conducted to determine the effect of feeding reduced CP, amino acid-supplemented diet on the excretion of urine and nitrogen, and the ammonia emitted from urine and feces in growing pigs. Twelve pigs (35kg BW) were fed corn-soybean meal diets containing either 16.4% CP (standard CP diet) or 10.9% CP supplemented with amino acids (low CP diet) for 28d. After 8d of feeding of the diets, a 4-d nitrogen balance trial was conducted. Ammonia emitted from urine, feces and the mixture, in which feces were mixed with urine (ratio of 1:2, wt/wt) to form a slurry, was determined by an in vitro system on the feces and urine excreted, on the 28th d. Body weight gain, feed intake and feed efficiency were similar between the pigs fed the standard CP diet and pigs fed the low CP diet. Water intake and excretion of urine tended to be lowered by feeding the low CP diet. Feeding the low CP diet reduced the excretion of fecal nitrogen (P<0.10) and urinary nitrogen (P<0.01), and the total excretion of nitrogen in the urine and feces (P<0.05) by 28, 50 and 38%, respectively. Ammonia emitted from the mixture of urine and feces was reduced (P<0.01) by 64% in the pigs fed the low CP diet compared with pigs fed the standard CP diet. We conclude that reducing the CP content in diets reduces fecal and urinary nitrogen excretion and ammonia emission from the slurry of growing pigs.

Journal

  • Nihon Yoton Gakkaishi

    Nihon Yoton Gakkaishi 39(1), 1-7, 2002-03-10

    The Japanese Society of Swine Science

References:  17

Cited by:  20

Codes

  • NII Article ID (NAID)
    10008284480
  • NII NACSIS-CAT ID (NCID)
    AN10202971
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    0913882X
  • NDL Article ID
    6102374
  • NDL Source Classification
    ZR22(科学技術--農林水産--畜産)
  • NDL Call No.
    Z18-1082
  • Data Source
    CJP  CJPref  NDL  J-STAGE  JASI 
Page Top