飼料と水との同時混合給与が肥育豚の採食速度および採食量に及ぼす影響  [in Japanese] Effects of Feed and Water Mixture for Finishing Pigs on Eating Speed and Feed Intake  [in Japanese]

Access this Article

Search this Article

Author(s)

Abstract

ウェットフィーディングが肥育豚の採食速度に及ぼす影響を検討するために, 実際の飼養試験 (実験1) と, 飼料と水の混合割合を変えた5種類の飼料を給与した基礎試験 (実験2) とを実施した。<br>実験1においては, 従来型不断給餌器で分離給水した対照区に比べ, 自然落下型および飼料切出し型ウェットフィーダーで同時給水した本飼養法では, 採食日量が肥育後期に多くなる傾向にあり, 採食速度は有意 (P<0.01) に速くなった。実験2では, 飼料と水との混合比率 (風乾飼料重量比) を変えたA区 (飼料1: 水0), B区 (1:0.5), C区 (1:1), D区 (1:2) およびE区 (1:3) の5区を設定して, 採食性に及ぼす影響を検討した。採食開始後約10分間の採食量および採食速度 (g/分) は, C, D, E, B, A区の順で, 加水混合により粉状飼料単独給与に比べて, 採食量は多く, 採食速度は速くなり, その差はともに有意 (P<0.01) となった。飼料水分と採食速度との間には体重60kg, 80kgおよび105kg時の測定から求めた2次回帰式は有意で, この回帰式から最も採食速度が速い飼料水分は62~69%であることが推察された。一方, 初回採食時間, 採食中断回数, 平均採食持続時間には, 加水による影響は認められなかった。<br>以上の結果から, 本飼養法の採食時間の短縮は採食速度が速くなったことに起因し, また採食速度が最も速くなる加水比率は, 飼料1に対し水1.3~1.8と推察された。

We established the effects of wet/dry feeding on the eating speed of finishing pigs through two experiments: a feeding test (Experiment 1) and a basic test on five types of feed with different mixing ratios of feed and water (Experiment 2).<br>In Experiment 1, wet/dry feeding for pigs in which water and feed were supplied simultaneously was compared with conventional ad libitum feeding in which air-dry feed and water were supplied separately (control section). The ledge type wet/dry feeder and nose operated flap type wet/dry feeder tended to increase daily feed intake in the latter finishing period of pigs than the ad libitum feeder. The eating speed of pigs in wet/dry feeding was significantly higher (P<0.01) than that in control section. In Experiment 2, the composition of feed and water (weight ratio) was varied in mixing ratios: Section A (air-dry feed 1 to water 0), Section B (1:0.5), Section C (1:1), Section D (1:2), and Section E (1:3). Feed intake of pigs for first ten minutes after starting to eat and eating speed (g/min) significantly increased (P<0.01) in the sections of feed and water mixture compared with the section of air-dry feed alone (Section A). The order from greatest to least was as follows: C>D>E>B>A. Significant regressions of the second degree were established between the water content in feed and the eating speed at 60kg, 80kg and 105kg of the pigs' body weights. The eating speed increased most when the water content of feed was 62-69%. No significant differences were observed among sections for the initial eating time, the number of breaks in eating, and average duration of eating.<br>From the above, it was estimated that in wet/dry feeding, the reduced eating time was caused by the increased eating speed, and that the mixing ratios to maximize the eating speed were air-dry feed 1 to water 1.3-1.8.

Journal

  • Nihon Yoton Gakkaishi

    Nihon Yoton Gakkaishi 34(1), 1-8, 1997-04-10

    The Japanese Society of Swine Science

References:  17

Cited by:  2

Codes

  • NII Article ID (NAID)
    10008284599
  • NII NACSIS-CAT ID (NCID)
    AN10202971
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    0913882X
  • NDL Article ID
    4185517
  • 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