Effect of the Designed Diet for Fatting using the Unutilized Resources of Hokkaido Feeding on the Growth, Carcass Characteristic and Fatty Acid Composition of Fat in Fattening Pigs

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  • YAMADA Michi
    Faculty of Daily Science Rakuno Gakuen University College of Agriculture, Food and Environment Science Rakuno Gakuen University
  • IKEHARA Mayumi
    Faculty of Daily Science Rakuno Gakuen University
  • OKADA Yuki
    Faculty of Daily Science Rakuno Gakuen University
  • GOTO Hodaka
    College of Agriculture, Food and Environment Science Rakuno Gakuen University
  • TAKEDA Yousuke
    College of Agriculture, Food and Environment Science Rakuno Gakuen University
  • MORIYOSHI Masaharu
    School of Veterinary Medicine Rakuno Gakuen University
  • SUGANO Mikio
    Rakuno Gakuen Field Education and Research Center
  • OZAKI Kunitsugu
    Rakuno Gakuen Field Education and Research Center
  • YAMADA Koji
    Faculty of Living Science, Koriyama Women’s College
  • TSUTSUI Shizuko
    Faculty of Daily Science Rakuno Gakuen University College of Agriculture, Food and Environment Science Rakuno Gakuen University
  • NAKATSUJI Hiroki
    Faculty of Daily Science Rakuno Gakuen University College of Agriculture, Food and Environment Science Rakuno Gakuen University

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  • 北海道産未利用原料を用いて設計された肥育期飼料給与が肥育豚の発育，産肉および脂肪組織の脂肪酸組成に及ぼす影響
  • ホッカイドウサン ミリヨウ ゲンリョウ オ モチイテ セッケイ サレタ ヒイクキ シリョウ キュウヨ ガ ヒイク ブタ ノ ハツイク,サンニク オヨビ シボウ ソシキ ノ シボウサン ソセイ ニ オヨボス エイキョウ

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<p>The effects of an air-dried diet designed to use unutilized local resources found in Hokkaido on the growth, carcass characteristic and fatty acid composition of fat in fattening pigs were examined. The unutilized resources used in the diet in this study were unmarketable potatoes (potato), disposed tofu (tofu), lower stems cut from asparagus (asparagus) all processed by freezing−thawing dehydration, as well as unmarketable wheat flour (wheat flour), and vitamin and mineral preparations. The diet was designed with the crude protein content in commercial diets as the targeted value. The component rates of the diet were as follows:for potatoes, 30.0%;tofu, 16.0%;asparagus, 10.0%;wheat flour, 43.5%;and vitamin and mineral preparations, 0.5%. Although the predictive value of the crude protein content in this designed diet was 17.2%, the analysis value of crude protein content was the same value (Lysine content was 0.82%). In the feeding experiment, there was no significant difference in the growth and carcass characteristics for each group. The fatty acid composition in the perirenal fat and intramuscular fat for the C18:1 content experimental group was significantly lower than those in the control group (P<0.05), and the C18:2 and C18:3 content groups were significantly higher than those of the control group (P<0.01). Moreover, the rate of n-6/n-3 of the experimental group was significantly lower than that of the control group (P<0.01), and the rate of C18:2/C18:0 was significantly higher than that of the control group (P<0.01). The melting point of the intermuscular fat and back fat of the experimental group was significantly lower than that of control group (P<0.01). It has been suggested that the designed diet in this study resulted in growth and meat product ability equal to the commercial diet, and especially, more so for the C18:2 and C18:3 content group than that of the commercial diet. The melting point of fat for the designed diet was lower and its fat was softer than that of the commercial diet.</p>

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