Effects of Lysine, Threonine and Methionine Enriched Diet on the Growth Performance of Finishing Pigs under the Condition of Heat Stress

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  • MATSUMOTO Mitsuhito
    Kyushu Okinawa Agricultural Research Center, NARO Present address:Institute of Livestock and Grassland Science, NARO
  • TAKAGI Yuji
    Faculty of Agriculture, Niigata University
  • INOUE Hiroaki
    Kyushu Okinawa Agricultural Research Center, NARO Present address:Institute of Livestock and Grassland Science, NARO
  • YAMAZAKI Makoto
    Kyushu Okinawa Agricultural Research Center, NARO Present address:Institute of Livestock and Grassland Science, NARO
  • MURAKAMI Hitoshi
    Kyushu Okinawa Agricultural Research Center, NARO Present address:Institute of Livestock and Grassland Science, NARO
  • TAKADA Ryozo
    Faculty of Agriculture, Niigata University

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Other Title
  • リジン，トレオニンおよびメチオニン強化飼料の給与が暑熱環境下の肥育豚の飼養成績に及ぼす影響
  • リジン,トレオニン オヨビ メチオニン キョウカ シリョウ ノ キュウヨ ガ ショネツ カンキョウ カ ノ ヒイク ブタ ノ シヨウ セイセキ ニ オヨボス エイキョウ

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<p>Two experiments were conducted to clarify the effects of amino acids (lysine, threonine and methionine) enriched diet on the growth performance of finishing pigs under the condition of heat stress. In experiment 1, 26 female pigs weighing 67.8 kg, were divided into three treatment groups. One was control group (Lys 100), which was met the lysine requirement, other two groups were Lys 150 and Lys 200. Experimental period was 5 weeks. In experiment 2, 18 female pigs weighing 67.5 kg were divided into three experimental groups:Lys 100, Lys 200 and Lys 200TM. Lys 200TM contains 200% of lysine requirement and threonine, methionine to meet the ideal pattern of essential amino acid. In experiment 1, although feed intake was not significantly different among three groups, body weight gain in Lys 200 was significantly higher than in Lys 100. Plasma lysine level in Lys 150 and Lys 200 was significantly higher than in Lys 100 and oppositely threonine arginine and histidine levels were significantly lower. Three oxidative stress markers (Blood GPx, SOD and muscle TBARS) were not different among three groups. In experiment 2, Feed intakes in three groups were similar and body weight gain in Lys 200TM was numerically higher than Lys 100. Feed efficiency in Lys 200TM was significantly higher than in Lys 100. Plasma threonine, arginine and histidine levels in Lys 200 were not different from Lys 100. In conclusion, amino acids (lysine, threonine and methionine) enriched diet improved the growth performance of finishing pigs under the condition of heat stress.</p>

Journal

  • Nihon Yoton Gakkaishi

    Nihon Yoton Gakkaishi 55 (4), 131-141, 2018-12-20

    The Japanese Society of Swine Science

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