Effects of heat challenge on growth performance, ruminal, blood and physiological parameters of Chinese crossbred goats

Cai, Liyuan; Yu, Jiangkun; Hartanto, Rudy; Zhang, Jiacai; Yang, Ao; Qi, Desheng

doi:10.1016/j.smallrumres.2019.02.021

Cited by 23 publications

(54 citation statements)

References 26 publications

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“…The modeling process was as described by Cai et al [2]. Basically, all 12 goats were kept in a thermally controlled environment with the room temperature and relative humidity maintained at 33.2 ± 2.7 • C and 74.4 ± 2.3%, respectively.…”

Section: Modeling Of Heat-stressed Goatsmentioning

confidence: 99%

“…In recent years, intensive goat breeding has rapidly developed in the Jianghuai region of China, where the climate is characterized by high temperatures and humidity in summer [1]. The large amounts of heat produced by rumen fermentation contribute to the low tolerance that ruminants have against high environmental temperatures, hence goats in this region are prone to suffering from heat stress during the summer [2]. Heat stress causes various adverse impacts on ruminants, including lowered rumen pH, decreased production of rumen volatile fatty acid (TVFA), reduced digestibility of feed, and oxidative stress [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…The large amounts of heat produced by rumen fermentation contribute to the low tolerance that ruminants have against high environmental temperatures, hence goats in this region are prone to suffering from heat stress during the summer [2]. Heat stress causes various adverse impacts on ruminants, including lowered rumen pH, decreased production of rumen volatile fatty acid (TVFA), reduced digestibility of feed, and oxidative stress [2][3][4][5]. These effects eventually lead to a decline in goat production and economic loss [6].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Clostridium butyricum Improves Rumen Fermentation and Growth Performance of Heat-Stressed Goats In Vitro and In Vivo

Cai

Hartanto

Zhang

et al. 2021

Animals

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This study aimed to evaluate the effects of Clostridium butyricum on rumen fermentation and the growth performance of heat-stressed goats. The in vitro fermentation was carried out using Clostridium butyricum supplement at 0% (CG), 0.025% (CB1), 0.05% (CB2), 0.10% (CB3), and 0.20% (CB4) of the dry matter (DM) weight of basal diet. Results showed that ruminal pH and the concentrations of ammonia nitrogen, total volatile fatty acids, acetic acid, propionic acid, as well as the acetic acid to propionic acid ratio were significantly increased (p < 0.05) in CB2 and CB3 compared with the CG group. Additionally, significant increases (p < 0.05) in the degradability of DM, neutral detergent fiber, and acid detergent fiber were observed in CB2 and CB3 compared with the CG group. For the in vivo study, 12 heat-stressed goats were divided equally into three groups: the control (HS1) was fed the basal diet, and groups HS2 and HS3 were fed with 0.05% and 0.10% Clostridium butyricum added to the basal diet, respectively. The experiment was designed as a 3 × 3 Latin square. Similar effects on rumen fermentation and digestibility parameters were obtained with 0.05% of Clostridium butyricum supplement compared to the in vitro study. Moreover, the dry matter intake and average daily gain were significantly increased (p < 0.05) in HS2 compared with other groups. These results indicated that an effective dose of Clostridium butyricum supplement (0.05%) could improve the rumen fermentation and growth performance of heat-stressed goats.

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Section: Modeling Of Heat-stressed Goatsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Clostridium butyricum Improves Rumen Fermentation and Growth Performance of Heat-Stressed Goats In Vitro and In Vivo

Cai

Hartanto

Zhang

et al. 2021

Animals

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“…The amount of saliva that is normally deposited to the rumen decreases because of increased droll, which thus decreases rumen pH, and compromises rumen health by increasing rumen acidity [51]. Disturbances in rumen health due to heat stress significantly decrease total VFAs, acetic acids, and propionic acid formation, which are the main contributors to glucose production [52]. In short, the rumen inappropriate function due to the heat stress is a main contributor to the decrease in whole-body glucose.…”

Section: Heat Stress Effect On Ruminal and Intestinal Glucose Processingmentioning

confidence: 99%

Glucose Metabolism and Dynamics of Facilitative Glucose Transporters (GLUTs) under the Influence of Heat Stress in Dairy Cattle

Abbas

Sammad

et al. 2020

Metabolites

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Heat stress is one of the main threats to dairy cow production; in order to resist heat stress, the animal exhibits a variety of physiological and hormonal responses driven by complex molecular mechanisms. Heat-stressed cows have high insulin activity, decreased non-esterified fatty acids, and increased glucose disposal. Glucose, as one of the important biochemical components of the energetic metabolism, is affected at multiple levels by the reciprocal changes in hormonal secretion and adipose metabolism under the influence of heat stress in dairy cattle. Therefore, alterations in glucose metabolism have negative consequences for the animal’s health, production, and reproduction under heat stress. Lactose is a major sugar of milk which is affected by the reshuffle of the whole-body energetic metabolism during heat stress, contributing towards milk production losses. Glucose homeostasis is maintained in the body by one of the glucose transporters’ family called facilitative glucose transporters (GLUTs encoded by SLC2A genes). Besides the glucose level, the GLUTs expression level is also significantly changed under the influence of heat stress. This review aims to describe the effect of heat stress on systemic glucose metabolism, facilitative glucose transporters, and its consequences on health and milk production.

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“…In addition, reduced concentrations of blood Mg occur due to increased utilization of Mg for lipolytic enzymes and decreased Mg transport through the rumen (Calamari et al, 2007). Moreover, total protein concentrations in serum decrease significantly during HS due to decreased protein intake and utilization (Cai et al, 2019). Plasma creatinine increases during HS, suggesting the mobilization of muscle proteins with subsequent creatinine delivery in the plasma.…”

Section: Matés Et Al 1999mentioning

confidence: 99%

Heat Stress: Effects on Rumen Microbes and Host Physiology, and Strategies to Alleviate the Negative Impacts on Lactating Dairy Cows

et al. 2022

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Heat stress (HS) in dairy cows causes considerable losses in the dairy industry worldwide due to reduced animal performance, increased cases of metabolic disorders, altered rumen microbiome, and other health problems. Cows subjected to HS showed decreased ruminal pH and acetate concentration and an increased concentration of ruminal lactate. Heat-stressed cows have an increased abundance of lactate-producing bacteria such as Streptococcus and unclassified Enterobacteriaceae, and soluble carbohydrate utilizers such as Ruminobacter, Treponema, and unclassified Bacteroidaceae. Cellulolytic bacteria, especially Fibrobacteres, increase during HS due to a high heat resistance. Actinobacteria and Acetobacter, both acetate-producing bacteria, decreased under HS conditions. Rumen fermentation functions, blood parameters, and metabolites are also affected by the physiological responses of the animal during HS. Isoleucine, methionine, myo-inositol, lactate, tryptophan, tyrosine, 1,5-anhydro-D-sorbitol, 3-phenylpropionic acid, urea, and valine decreased under these conditions. These responses affect feed consumption and production efficiency in milk yield, growth rate, and reproduction. At the cellular level, activation of heat shock transcription factor (HSF) (located throughout the nucleus and the cytoplasm) and increased expression of heat shock proteins (HSPs) are the usual responses to cope with homeostasis. HSP70 is the most abundant HSP family responsible for the environmental stress response, while HSF1 is essential for increasing cell temperature. The expression of bovine lymphocyte antigen and histocompatibility complex class II (DRB3) is downregulated during HS, while HSP90 beta I and HSP70 1A are upregulated. HS increases the expression of the cytosolic arginine sensor for mTORC1 subunits 1 and 2, phosphorylation of mammalian target of rapamycin and decreases the phosphorylation of Janus kinase-2 (a signal transducer and activator of transcription factor-5). These changes in physiology, metabolism, and microbiomes in heat-stressed dairy cows require urgent alleviation strategies. Establishing control measures to combat HS can be facilitated by elucidating mechanisms, including proper HS assessment, access to cooling facilities, special feeding and care, efficient water systems, and supplementation with vitamins, minerals, plant extracts, and probiotics. Understanding the relationship between HS and the rumen microbiome could contribute to the development of manipulation strategies to alleviate the influence of HS. This review comprehensively elaborates on the impact of HS in dairy cows and introduces different alleviation strategies to minimize HS.

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Effects of heat challenge on growth performance, ruminal, blood and physiological parameters of Chinese crossbred goats

Cited by 23 publications

References 26 publications

Clostridium butyricum Improves Rumen Fermentation and Growth Performance of Heat-Stressed Goats In Vitro and In Vivo

Clostridium butyricum Improves Rumen Fermentation and Growth Performance of Heat-Stressed Goats In Vitro and In Vivo

Glucose Metabolism and Dynamics of Facilitative Glucose Transporters (GLUTs) under the Influence of Heat Stress in Dairy Cattle

Heat Stress: Effects on Rumen Microbes and Host Physiology, and Strategies to Alleviate the Negative Impacts on Lactating Dairy Cows

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