Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Effects of Restricted Feeding Method on Growth Performance, Carcass Characteristics and Economic Efficiency in Finishing Pigs

제한 급여 방법이 비육돈의 성장, 도체특성 및 경제성에 미치는 영향

  • Min, Ye-Jin (National Institute of Animal Science, Rural Development Administration) ;
  • Jung, Hyun-Jung (National Institute of Animal Science, Rural Development Administration) ;
  • Kim, Ki-Hyun (National Institute of Animal Science, Rural Development Administration) ;
  • Kim, Jo-Eun (National Institute of Animal Science, Rural Development Administration) ;
  • Yu, Dong-Jo (National Institute of Animal Science, Rural Development Administration) ;
  • Jeong, Yong-Dae (National Institute of Animal Science, Rural Development Administration) ;
  • Kim, Young-Hwa (National Institute of Animal Science, Rural Development Administration) ;
  • Kim, Doo-Wan (National Institute of Animal Science, Rural Development Administration) ;
  • Choi, Yo-Han (National Institute of Animal Science, Rural Development Administration)
  • 민예진 (농촌진흥청 국립축산과학원) ;
  • 정현정 (농촌진흥청 국립축산과학원) ;
  • 김기현 (농촌진흥청 국립축산과학원) ;
  • 김조은 (농촌진흥청 국립축산과학원) ;
  • 유동조 (농촌진흥청 국립축산과학원) ;
  • 정용대 (농촌진흥청 국립축산과학원) ;
  • 김영화 (농촌진흥청 국립축산과학원) ;
  • 김두완 (농촌진흥청 국립축산과학원) ;
  • 최요한 (농촌진흥청 국립축산과학원)
  • Received : 2019.07.17
  • Accepted : 2019.11.01
  • Published : 2019.11.30
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Abstract

This study examined the effects of restricted feeding on the growth performance, carcass characteristics, and economic efficiency of finishing pigs for 27 days. A total of 24 finishing pigs (Landrace×Yorkshire×Duroc, average initial body weight of 81.52±1.11 kg) were allotted randomly to two treatments with 12 replicates (one pig per replicate). The experimental treatments were ad libitum feeding (AF), and restricted feeding (RF) with a 10% increase in offered feed than the day before if required. The results showed that the average daily feed intake (ADFI; p<0.001) of the pigs were improved in the RF treatment, but there were no changes in the average daily gain and weight gain to feed intake ratio (G:F). There were no significant differences in carcass weight and backfat thickness. In addition, the total pork price per pig was not affected by RF. Although total feed intake (TFI) and total feed intake cost (TFC) were significantly lower in the RF pigs (p<0.001), the feed cost per 1 kg weight gain (FCG) was similar regardless of the treatments. In conclusion, the RF method may decrease the feed cost due to a lower TFI and TFC.

본 실험은 제한 급여에 따른 비육돈의 성장, 도체특성 및 경제성을 평가하기 위하여 수행하였다. 공시동물은 개시체중이 평균 81.52±1.11 kg인 3원 교잡종(Landrace×Yorkshire×Duroc)의 비육돈 24두를 사용하였으며, 2처리 12반복, 반복당 1두씩 완전임의 배치하여 27일간 진행하였다. 본 실험의 처리구는 무제한 급여(AF, ad libitum feeding)와 제한 급여(RF, restricted feeding)로 나누었으며, 제한 급여에서 증량이 필요한 경우 하루 전날 급여한 양의 10% 수준에서 증량하였다. 사양성적에서 RF의 일일사료섭취량이 AF에 비해 유의적으로 개선되었으나(p<0.001), 일당증체량과 사료효율은 처리구간의 유의적인 차이가 나타나지 않았다. 도체특성에서 도체중과 등지방두께는 AF와 RF간의 유의적인 차이가 나타나지 않았다. 도체등급에 따른 경제성 평가에서 두당 총 지육단가는 AF와 RF간의 유의적인 차이가 나타나지 않았다. 사료비에 따른 경제성 평가에서 RF의 총 사료섭취량과 총 사료섭취비가 유의적으로 낮게 나타났으나(p<0.001), 1 kg 증체 사료비는 AF와 RF간의 유의적인 차이가 없었다. 본 연구결과를 종합해보면 비육기 제한 급여는 무제한 급여에 비해 총 사료섭취량과 총 사료섭취비를 개선시켜 사료비를 저감시킬 수 있음을 시사한다.

Keywords

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