Diet supplementation of palm fat powder and coated folic acid on performance, energy balance, nutrient digestion, ruminal fermentation and blood metabolites of early lactation dairy cows

Zhang, Z.; La, S.K.; Zhang, G.W.; Du, Hai; Wu, Zhenzhen; Wang, C.; Liu, Q.; Guo, Gang; Huo, Weiguang; Zhang, J.; Zhang, Y.L.; Pei, Caixia; Zhang, S.L.

doi:10.1016/j.anifeedsci.2020.114520

Cited by 8 publications

(1 citation statement)

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“…It is well documented that heat stress reduces feed intake which negatively influencing nutrient absorption and affecting the immune system as well as the immune response [119]. Energy-rich diets [120], dietary fats [121,122], and rumen degradable proteins [123], are important primary feeding stuffs to be cared for, while dietary yeasts [124], fermentates, betaine [125], and Dietary Cation-Anion Difference [126] feeding would augment the constrained gastrointestinal tract and the metabolic status of dairy cows under heat stress. Among the many other adverse effects of heat stress and energy-rich diets is ruminal acidosis, which could be overcome by feeding bicarbonates [11].…”

Section: Mitigation Strategies Towards Heat Stress and Its Consequencesmentioning

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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