“Effect of temperature x THI on acclimatization in buffaloes subjected to simulated heat stress: physio-metabolic profile, methane emission and nutrient digestibility”

Wankar, Alok; Singh, Gyanendra; Yadav, Brijesh

doi:10.1080/09291016.2019.1673652

Cited by 9 publications

(7 citation statements)

References 52 publications

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“…When the THI was higher, the thyroid hormones levels in blood serum were below the conventional range and when the THI was in comfort, the T 3 and T 4 levels in body uid were increased(Kohli et al, 2014). The study ofWankar et al (2019) was conducted on adult buffaloes and found that thyroid hormones declined and glucocorticoids increased at 35°C and 40°C Kim et al (2018). found that at THI of 84.05 to 87.72, serum cortisol level was signi cantly higher than at THI of 70.01 to 82.92.…”

mentioning

confidence: 99%

WITHDRAWN: Impact of climatic variability of the temperature-humidity index during winter, spring and summer seasons in Egypt on the growth of the native bovine calves

Habeeb

Atta

Sharaf

et al. 2022

Preprint

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This research aims to check the impact of climatic variability of the THI index during the three main seasons of the year in Egypt on growth traits and biochemical blood components in native bovine calves. Eighteen Egyptian bovine calves after weaning were used in this study. The experimental design included three experimental groups according to the year's seasons. In the 1st group, sex calves were rearing under winter conditions. In the 2nd group, sex calves were kept during the spring season. In the 3rd group, sex calves were maintained during the summer season. Weekly and monthly Temperature-humidity index (THI) was calculated for the three seasons. The daily body gain (DBG) the feed intake (DMI), and water consumption (WC) were measured weekly for each calf. The highest THI value (85.5) during summer resulted in a significant (P<0.01) decrease in DBG, daily DMI, thyroid hormonal levels, total proteins, and glucose and a significant (P<0.01) increase in daily WC and levels of cortisol and urea. The rate of decline increases with increasing THI values from low THI in winter (68.1) to moderate THI during spring (74.9) and high THI (85.5) during the summer season. With increasing THI, the depression in DBG was more than the decline in daily DMI; therefore, food conversion increases when the value of THI increases. THI has highly (P<0.01) significant negative correlations with DBG, DMI, thyroxin (T4), triiodothyronine (T3), total proteins, and glucose and has highly significant (P<0.01) positive correlations with water intake as well as cortisol and urea concentrations.

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confidence: 99%

WITHDRAWN: Impact of climatic variability of the temperature-humidity index during winter, spring and summer seasons in Egypt on the growth of the native bovine calves

Habeeb

Atta

Sharaf

et al. 2022

Preprint

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“…Regarding dry matter intake (DMI), several authors [ 46 , 49 , 50 ] reported no effect of HS, even though Wang et al [ 46 ] observed a slight reduction in summer. In contrast, other authors [ 51 , 52 , 53 ] have reported the significant negative effects of HS on the DMI ( Table 2 ).…”

Section: The Effect Of Heat Stress On Buffalomentioning

confidence: 99%

Responses of Dairy Buffalo to Heat Stress Conditions and Mitigation Strategies: A Review

Jasinski

Evangelista

Basiricò

et al. 2023

Animals

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Increases in temperature and the greater incidence of extreme events are the consequences of the climate change that is taking place on planet Earth. High temperatures create severe discomfort to animal farms as they are unable to efficiently dissipate their body heat, and for this, they implement mechanisms to reduce the production of endogenous heat (reducing feed intake and production). In tropical and subtropical countries, where buffalo breeding is more widespread, there are strong negative consequences of heat stress (HS) on the production and quality of milk, reproduction, and health. The increase in ambient temperature is also affecting temperate countries in which buffalo farms are starting to highlight problems due to HS. To counteract HS, it is possible to improve buffalo thermotolerance by using a genetic approach, but even if it is essential, it is a long process. Two other mitigation approaches are nutritional strategies, such as the use of vitamins, minerals, and antioxidants and cooling strategies such as shade, fans, sprinklers, and pools. Among the cooling systems that have been evaluated, wallowing or a combination of fans and sprinklers, when wallowing is not available, are good strategies, even if wallowing was the best because it improved the production and reproduction performance and the level of general well-being of the animals.

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“…These values are within the range (38.1 to 39.1 °C) reported by West et al [ 23 ]. This finding may be related to the greater heat dissipation of the animals [ 24 , 25 ] through the increase in RR, showing that all systems contributed to the maintenance of rectal temperature, with RT being one of the main indices for assessing the adaptability of animals [ 26 ].…”

Section: Discussionmentioning

confidence: 99%

Influence of Different Heat-Stress-Reducing Systems on Physiological and Behavioral Responses and Social Dominance of Holstein and Jersey Cows and Heifers on Pasture

Guimarães-Yamada

Santos

Osório

et al. 2022

Animals

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High ambient temperatures and relative humidity affect the behavior and physiology of the animal. This study investigated the influence of different heat-stress-reducing systems on the physiological, behavioral, and preferential responses of Holstein and Jersey cows and heifers on pasture. Experimental treatments were: (1) three heat-stress-reducing systems (sprinklers + artificial shade; showers + artificial shade; and artificial shade); (2) two breeds (Holstein and Jersey); and (3) two physiological stages (lactating cows and pubertal heifers). Physiological and behavioral responses to treatments were measured every 30 min on collection days. The frequency and duration of the use of the systems were recorded continuously 24 h/day for 3 days in each period. The air temperature and the relative humidity were 26 ± 4.1 °C and 74 ± 11.3%, respectively. The experimental treatments affected (p = 0.0354) standing idle, grazing behavior (p = 0.0435), and the frequency and duration of use of the systems by the animals (p < 0.0001). For all treatments, the respiratory rate and the coat surface temperature were highly and significantly correlated (p < 0.05) with the temperature and humidity index. In conclusion, under ambient conditions, dairy cows preferred using sprinklers or showers over artificial shade. These systems were more efficient at reducing the heat load and led to better behavioral and physiological responses.

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“Effect of temperature x THI on acclimatization in buffaloes subjected to simulated heat stress: physio-metabolic profile, methane emission and nutrient digestibility”

Cited by 9 publications

References 52 publications

WITHDRAWN: Impact of climatic variability of the temperature-humidity index during winter, spring and summer seasons in Egypt on the growth of the native bovine calves

WITHDRAWN: Impact of climatic variability of the temperature-humidity index during winter, spring and summer seasons in Egypt on the growth of the native bovine calves

Responses of Dairy Buffalo to Heat Stress Conditions and Mitigation Strategies: A Review

Influence of Different Heat-Stress-Reducing Systems on Physiological and Behavioral Responses and Social Dominance of Holstein and Jersey Cows and Heifers on Pasture

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