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2024 Vol.26, Issue 1 Preview Page

Research article

Effects of differences in feed intake and thermal environment on productive performance in lactating sows

사료섭취량 및 열환경 차이가 포유모돈 생산성에 미치는 영향

Byeonghyeon Kim1
,
Kyeong-Seok Kwon1
,
Dong-Hwa Jang1
,
Vandet Pann2
,
Jong-Bok Kim3*
김 병현1
,
권 경석1
,
장 동화1
,
판 반뎃2
,
김 종복3*
1Researcher, Animal Environment Division, National Institute of Animal Science, RDA, 1500, Kongjwipatjwi-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
2Post M.S., Animal Environment Division, National Institute of Animal Science, RDA, 1500, Kongjwipatjwi-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
3Senior Researcher, Animal Environment Division, National Institute of Animal Science, RDA, 1500, Kongjwipatjwi-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
1국립축산과학원 축산환경과 농업연구사
2국립축산과학원 축산환경과 석사후연구원
3국립축산과학원 축산환경과 농업연구관
*Corresponding Author
30 April 2024. pp. 32-36
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Abstract

In South Korea, smart farming is conducted to address the increasing meat consumption and the aging population issue. In addition, smart farming data analysis is important for daily decision-making and predicting performance. This study aimed to investigate the effects of differences in feed intake and thermal environment on productive performance in lactating sows by analysis of productivity and environmental factors. A total of 40 sows in the farrowing house were selected for the experiment, and data collection extended over approximately one year, starting in 2019. To obtain the necessary data for the correlation analysis, smart farm equipment was installed. Feed intake (FI) of the lactating sows was measured weekly using an automatic feeder and the weaning to estrus interval (WEI) information was also recorded. The environmental conditions (temperature and humidity) were controlled and the data was collected to analyze the correlations between the FI and environmental factors with weaning weight, number of weaned pigs, and WEI using regression analysis. The insufficient FI by lactating sows led to lower weaning weight and number of weaned pigs, whereas higher feed consumption correlated with larger litters. The elevated temperature during the first week post-farrowing decreased the weaning weight and number of weaned pigs, with no significant effects observed in subsequent weeks. The increased FI during the third week of lactation correlated with shorter WEI, enhancing sow reproductive performance. In conclusion, optimizing FI and maintaining appropriate environmental conditions are important for enhancing sow productivity and farm efficiency.

Keywords
Smart farm
Lactating Sow
Productivity
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Information
  • Publisher :The Korean Society of Animal Environmental Science & Technology
  • Publisher(Ko) :(사)한국축산환경학회
  • Journal Title :Journal of Animal Environmental Science
  • Journal Title(Ko) :축산시설환경학회지
  • Volume : 26
  • No :1
  • Pages :32-36
  • Received Date : 2023-11-06
  • Revised Date : 2024-01-16
  • Accepted Date : 2024-02-26
  • DOI :https://doi.org/10.11109/JAES.2023.26.1.032
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