지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.1
- 수록면
- 211 - 247 (37page)
이용수
초록· 키워드
오류제보하기
Livestock species experience several stresses, particularly weaning, transportation, overproduction, crowding, temperature, and diseases in their life. Heat stress (HS) is one of the most stressors, which is encountered in livestock production systems throughout the world, especially in the tropical regions and is likely to be intensified due to global rise in environmental temperature. The gut has emerged as one of the major target organs affected by HS. The alpha- and beta-diversity of gut microbiota composition are altered due to heat exposure to animals with greater colonization of pathogenic microbiota groups. HS also induces several changes in the gut including damages of microstructures of the mucosal epithelia, increased oxidative insults, reduced immunity, and increased permeability of the gut to toxins and pathogens. Vulnerability of the intestinal barrier integrity leads to invasion of pathogenic microbes and translocation of antigens to the blood circulations, which ultimately may cause systematic inflammations and immune responses. Moreover, digestion of nutrients in the guts may be impaired due to reduced enzymatic activity in the digesta, reduced surface areas for absorption and injury to the mucosal structure and altered expressions of the nutrient transport proteins and genes. The systematic hormonal changes due to HS along with alterations in immune and inflammatory responses often cause reduced feed intake and production performance in livestock and poultry. The altered microbiome likely orchestrates to the hosts for various relevant biological phenomena occurring in the body, but the exact mechanisms how functional communications occur between the microbiota and HS responses are yet to be elucidated. This review aims to discuss the effects of HS on microbiota composition, mucosal structure, oxidant-antioxidant balance mechanism, immunity, and barrier integrity in the gut, and production performance of farm animals along with the dietary ameliorations of HS. Also, this review attempts to explain the mechanisms how these biological responses are affected by HS.
목차
등록된 정보가 없습니다.
참고문헌 (148)
참고문헌 신청
Soheil Varasteh / 2015 / Differences in Susceptibility to Heat Stress along the Chicken Intestine and the Protective Effects of Galacto-Oligosaccharides / PLOS ONE 10(9):e0138975
Lucas Lara / 2013 / Impact of Heat Stress on Poultry Production / Animals 3(2):356~369
D. Renaudeau / 2012 / Adaptation to hot climate and strategies to alleviate heat stress in livestock production / Animal 6(5):707~728
C.A. Becker / 2020 / Invited review: Physiological and behavioral effects of heat stress in dairy cows / Journal of Dairy Science 103(8):6751~6770
Adi Ratriyanto / 2018 / Osmoregulatory function of betaine in alleviating heat stress in poultry / Journal of Animal Physiology and Animal Nutrition 102(6):1634~1650
Lucas Lara / 2013 / Impact of Heat Stress on Poultry Production / Animals 3(2):356~369
D. Renaudeau / 2012 / Adaptation to hot climate and strategies to alleviate heat stress in livestock production / Animal 6(5):707~728
C.A. Becker / 2020 / Invited review: Physiological and behavioral effects of heat stress in dairy cows / Journal of Dairy Science 103(8):6751~6770
Adi Ratriyanto / 2018 / Osmoregulatory function of betaine in alleviating heat stress in poultry / Journal of Animal Physiology and Animal Nutrition 102(6):1634~1650
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