This study was conducted to secure basic data for developing technologies to reduce the generation of odor substances by investigating the effects of environmental temperature on growth performance and the generation of odor substances from feces in growing pigs. A total of 16 pigs (Landrace × Yorkshire × Duroc, average body weight 56.49±0.47kg) were randomly assigned to two treatments: thermal-neutral (TN) and heat stress (HS) conditions. The experiments were conducted for two weeks, with average temperature-humidity indices of 68.91±0.09 for TN and 85.98±0.08 for HS. The results showed that HS significantly decreased average daily feed intake (ADFI, 33.3%) and average daily gain (ADG, 25.8%) compared with TN (p<0.05). Non-esterified fatty acid in serum was lower (36.2%) in HS compared with TN (p<0.05). However, protein, blood urea nitrogen, cholesterol, triglyceride, glucose, and IgG in serum showed no difference between HS and TN. Phenol (350.0%) and skatole (416.3%) were significantly higher in HS than in TN (p<0.05). The decrease in growth performance is attributed to reduction in ADFI. The increase in phenol and skatole in HS is presumed to be due to the effect of HS on the metabolism of intestinal microbial composition. Digestion rate, intestinal microbial composition, and urine emissions are known to affect odor substances. Further research on the content of odor substances in urine, nutrient digestion rate, and intestinal microbial composition is considered necessary to determine the exact associations.

Ⅰ. 서론
Ⅱ. 재료 및 방법
    1. 공시동물 및 시험설계
    2. 조사항목
Ⅲ. 결과 및 고찰
    1. 환경온도 및 습도
    2. 사양성적
    3. 혈액특성
    4. 분변 내 냄새물질
Ⅳ. 요약
사사
Ⅴ. 참고문헌

• 김조은(국립축산과학원 양돈과 연구원) | Jo Eun Kim (Researcher, Swine Science Division, National Institute of Animal Science, Rural Development Administration)
• 최요한(국립축산과학원 양돈과 연구원) | Yo Han Choi (Researcher, Swine Science Division, National Institute of Animal Science, Rural Development Administration)
• 박현주(국립축산과학원 양돈과 연구원) | Hyun Ju Park (Researcher, Swine Science Division, National Institute of Animal Science, Rural Development Administration)
• 홍준선(국립축산과학원 양돈과 연구원) | Jun Sun Hong (Researcher, Swine Science Division, National Institute of Animal Science, Rural Development Administration)
• 이지환(국립축산과학원 양돈과 연구원) | Ji Hwan Lee (Researcher, Swine Science Division, National Institute of Animal Science, Rural Development Administration)
• 서시영(국립축산과학원 축산환경과 연구원) | Si-Young Seo (Researcher, Animal Environment Division, National Institute of Animal Science, Rural Development Administration)
• 정용대(국립축산과학원 양돈과 연구원) | Yong Dae Jeong (Researcher, Swine Science Division, National Institute of Animal Science, Rural Development Administration)
• 김용민(국립축산과학원 양돈과 연구원) | Yong Min Kim (Researcher, Swine Science Division, National Institute of Animal Science, Rural Development Administration)
• 박성우(국립축산과학원 양돈과 연구원) | Sung Woo Park (Researcher, Swine Science Division, National Institute of Animal Science, Rural Development Administration)
• 사수진(국립축산과학원 양돈과 농업연구관) | Soo Jin Sa (Senior researcher, Swine Science Division, National Institute of Animal Science, Rural Development Administration) Corresponding author