数字农科院2.0

Effects of heat stress on endocrine, thermoregulatory, and lactation capacity in heat-tolerant and -sensitive dry cows

文献类型： 外文期刊

作者： Xiaoyang Chen;Chenyang Li;Tingting Fang;Junhu Yao;Xianhong Gu

作者机构：

关键词： dry cows;endocrine;heat stress;lactation capacity;thermoregulatory

期刊名称： Frontiers in Veterinary Science

ISSN： 2297-1769

年卷期： 2024 年 11 卷

页码：

收录情况： SCIE（2024版）

摘要： Introduction: Increasing global temperatures present a significant challenge to livestock production. The dry period is an important stage in the production cycle of cow, and environmental heat stress (HS) during this period can have adverse effects on the subsequent lactation performance. In this study, we aimed to investigate the effects of HS on endocrine, thermoregulatory, and lactation parameters in heat-tolerant dry cows (HTDC) and heat-sensitive dry cows (HSDC). Methods: We measured the respiratory rate (RR), body temperature (BT), and temperature-humidity index (THI) in 66 dry cows during HS. The slopes of RR and BT to THI were determined through analysis of measurements and dry cows background information using a mixed-effects model. Subsequently, the heat tolerance or sensitivity of dry cows was assessed using clustering method (HTDC = 19 and HSDC = 47). Results: Compared with that of HSDC, the RR of HTDC significantly increased after exposure to HS (p < 0.05). The average reduction in milk yield from new lactation to the previous lactation was significantly lower in HTDC compared to HSDC (p < 0.05). Plasma cortisol and non-esterified fatty acid levels were significantly lower in HTDC compared to HSDC (p < 0.05), while plasma triiodothyronine (p = 0.07) and growth hormone (p = 0.08) levels tended to be higher in HTDC relative to HSDC. Discussion: HTDC can more effectively alleviate the impacts of HS through their superior thermoregulation and metabolism, thereby ensuring optimal postpartum lactation performance.

分类号：

  • 相关文献

[1]Effect of a Corn Straw or Mixed Forage Diet on Endocrine, Metabolism and Lactation Performance in Periparturient Cows. Qin, Tong,Wang, Haoyu,Hao, Haisheng,Wang, Dong,Du, Weihua,Zhu, Huabin,Bu, Dengpan.

[2]Impact of prenatal heat tolerance in holstein dry cows on their calves' thermoregulation and immunity. Chen, Xiaoyang,Li, Chenyang,Fang, Tingting,Yao, Junhu,Gu, Xianhong. 2025

[3]NPR1-dependent salicylic acid signaling is not involved in elevated CO2-induced heat stress tolerance in Arabidopsis thaliana. Li, Xin,Ahammed, Golam Jalal,Li, Xin,Yu, Jingquan,Shi, Kai. 2015

[4]Sugars, antioxidant enzymes and IAA mediate salicylic acid to prevent rice spikelet degeneration caused by heat stress. Zhang, C. X.,Feng, B. H.,Chen, T. T.,Zhang, X. F.,Tao, L. X.,Fu, G. F..

[5]Effect of dietary net energy concentration on dry matter intake and energy partition in cows in mid-lactation under heat stress. Yan, Fangquan,Xue, Bai,Song, Liangrong,Dalecuo,Xiao, Jun,Ding, Siyan,Hu, Xiaofei,Yan, Tianhai,Bu, Dengpan.

[6]Comparative evaluation of cooling systems for farrowing sows. Dong, H,Tao, X,Lin, J,Li, Y,Xin, H. 2001

[7]Feeding rumen-protected gamma-aminobutyric acid enhances the immune response and antioxidant status of heat-stressed lactating dairy cows. Cheng, Jianbo,Zheng, Nan,Li, Songli,Wang, Jiaqi,Zhang, Yangdong,Cheng, Jianbo,Sun, Xianzhi,Zheng, Nan,Li, Songli,Zhang, Yangdong,Wang, Jiaqi.

[8]Effect of epigallocatechin gallate on growth performance and antioxidant capacity in heat-stressed broilers. Xue, Bo,Liu, Longzhou,Luo, Jingxian,Tian, Guangming,Yang, Ye,Song, Jiao.

[9]Effects of heat stress on serum insulin, adipokines, AMP-activated protein kinase, and heat shock signal molecules in dairy cows. Min, Li,Shi, Bao-lu,Zheng, Nan,Wang, Jia-qi,Min, Li,Yang, Hong-jian,Cheng, Jian-bo. 2015

[10]Proteomic changes of the porcine small intestine in response to chronic heat stress. Cui, Yanjun,Gu, Xianhong. 2015

[11]The effect of heat stress on gene expression and synthesis of heat-shock and milk proteins in bovine mammary epithelial cells. Hu, Han,Zhang, Yangdong,Zheng, Nan,Cheng, Jianbo,Wang, Jiaqi,Hu, Han,Zhang, Yangdong,Zheng, Nan,Cheng, Jianbo,Wang, Jiaqi,Hu, Han,Zhang, Yangdong,Zheng, Nan,Cheng, Jianbo,Wang, Jiaqi.

[12]Effect of a probiotic mixture on intestinal microflora, morphology, and barrier integrity of broilers subjected to heat stress. Song, J.,Xiao, K.,Ke, Y. L.,Jiao, L. F.,Hu, C. H.,Zou, X. T.,Diao, Q. Y.,Shi, B.. 2014

[13]The probiotic Bacillus licheniformis ameliorates heat stress-induced impairment of egg production, gut morphology, and intestinal mucosal immunity in laying hens. Deng, W.,Dong, X. F.,Tong, J. M.,Zhang, Q.. 2012

[14]Effect of dietary manganese on antioxidant status and expression levels of heat-shock proteins and factors in tissues of laying broiler breeders under normal and high environmental temperatures (Retracted article. See vol. 119, pg. 117, 2018). Zhu, Yong-Wen,Lu, Lin,Li, Wen-Xiang,Zhang, Li-Yang,Luo, Xu-Gang,Zhu, Yong-Wen,Ji, Cheng,Lin, Xi,Liu, Hsiao-Ching,Odle, Jack. 2015

[15]Metabolic responses and "omics" technologies for elucidating the effects of heat stress in dairy cows. Min, Li,Zhao, Shengguo,Tian, He,Zhou, Xu,Zhang, Yangdong,Li, Songli,Zheng, Nan,Wang, Jiaqi,Min, Li,Yang, Hongjian.

[16]Overexpression of heat shock protein 70 and its relationship to intestine under acute heat stress in broilers: 2. Intestinal oxidative stress. Gu, X. H.,Hao, Y.,Wang, X. L.. 2012

[17]Comparative Transcriptome Analysis Reveals Heat-Responsive Genes in Chinese Cabbage (Brassica rapa ssp chinensis). Wang, Aihua,Huang, Xingxue,Li, Xia,Zhou, Guolin,Hu, Jihong,Hu, Jihong,Yan, Zhixiang. 2016

[18]Heat-induced apoptosis and gene expression in bovine mammary epithelial cells. Hu, Han,Wang, Jiaqi,Gao, Haina,Li, Songli,Zhang, Yangdong,Zheng, Nan,Hu, Han,Wang, Jiaqi,Gao, Haina,Li, Songli,Zhang, Yangdong,Zheng, Nan,Hu, Han,Wang, Jiaqi,Gao, Haina,Li, Songli,Zhang, Yangdong,Zheng, Nan.

[19]Effect of acute heat stress on calcium concentration, proliferation, cell cycle, and interleukin-2 production in splenic lymphocytes from broiler chickens. Han, A. Y.,Zhang, M. H.,Zheng, S. S.,Zhao, C. F.,Feng, J. H.,Cheng, C.,Han, A. Y.,Zuo, X. L.. 2010

[20]Effects of rumen-protected Y-aminobutyric acid on performance and nutrient digestibility in heat-stressed dairy cows. Cheng, J. B.,Bu, D. P.,Wang, J. Q.,Sun, X. Z.,Pan, L.,Zhou, L. Y.,Liu, W.,Cheng, J. B.,Sun, X. Z..

作者其他论文 更多>>