Changes in hematological, biochemical, and blood gases parameters in response to progressive inclusion of nitrate in the diet of Holstein calves

Background and Aim: Nitrate (NO3–) reduces enteric methane emissions and could be a source of non-protein nitrogen in ruminant feeds. Nonetheless, it has a potential toxic effect that could compromise animal health and production. The purpose of this study was to determine the effects of progressive inclusion of NO3– in the diet on the hematological, biochemical, and blood gases parameters, in turn, the effects on feed intake and live weight gain (LWG) in Holstein calves. Materials and Methods: Eighteen Holstein heifers and steers (nine animals/treatment) were maintained in individual pens for 45 days. Animals were randomly allocated to either a control or nitrate diet (ND) (containing 15 g of NO3–/kg of dry matter [DM]). The biochemical parameters and blood gases were analyzed only in the NO3– group on days: -1, 1, 7, 13, 19, and 25 corresponding to 0, 20, 40, 60, 80, and 100% of the total inclusion of NO3– in the diet, respectively. In addition, DM intake (DMI) and LWG were evaluated among dietary treatments. Results: Feeding the ND did not influence DMI or LWG (p>0.05). Methemoglobin (MetHb) and deoxyhemoglobin increased according to the NO3– concentrations in the diet (p<0.05), while an opposite effect was observed for oxyhemoglobin and carboxyhemoglobin (p<0.05). Hematocrit levels decreased (p<0.05), while albumin, alanine aminotransferase, and gamma-glutamyl transpeptidase concentrations were not modified (p>0.05). However, glucose, urea, aspartate aminotransferase (AST), and retinol concentrations increased (p<0.05) according to the NO3– concentrations in the diet. Conclusion: This study confirmed that the progressive inclusion of 123 g of NO3–/animal/day in the diet could be safe without affecting DMI and LWG of Holstein calves. In turn, a dose-response effect of the MetHb, glucose, urea, AST, and retinol was observed, but these values did not exceed reference values. These results highlighted the importance of using a scheme of progressive inclusion of NO3– in the diet of calves to reduce the risks of NO3– toxicity.

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Relationship Between Gamma-glutamyl Transpeptidase Activity and Inflammatory Response in Lichen Planus

Revista de Chimie ◽

10.37358/rc.18.3.6189 ◽

2018 ◽

Vol 69 (3) ◽

pp. 739-743 ◽

Cited By ~ 3

Author(s):

Madalina Irina Mitran ◽

Ilinca Nicolae ◽

Corina Daniela Ene ◽

Cristina Iulia Mitran ◽

Clara Matei ◽

...

Keyword(s):

Inflammatory Response ◽

Lichen Planus ◽

Inflammatory Process ◽

Molecular Mechanisms ◽

Functional Adaptation ◽

Physical Factors ◽

Inflammatory Disorder ◽

Gamma Glutamyl Transpeptidase ◽

Gamma Glutamyl ◽

Glutamyl Transpeptidase

Chemicals used in the manufacture of synthetic fibers have been associated with undesirable side effects such as itching or skin lesions and it seems that they are involved in the induction of pathological processes such as oxidative stress and inflammation. Lichen planus (LP) can be regarded as an inflammatory disorder, chemical and physical factors playing an important role in the perpetuation of the inflammatory process. Gamma-glutamyl transpeptidase (GGT) plays an important role in the preservation of skin architecture and modulation of skin inflammation. In this study, we found that GGT activity is increased in LP patients with mild inflammation, whilst GGT is inactivated under conditions of severe inflammation. Therefore, GGT is involved in the inflammatory process, but there is no a positive correlation between its activity and the intensity of the inflammatory response. This functional adaptation of the enzyme may be due to down-regulation of its synthesis under free radical overload conditions. Understanding the molecular mechanisms involved in the modulation of intracellular redox homeostasis is an important step in the pharmacological management of patients with LP.

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Predictive Value of Hepatitis B Surface Antigen and Gamma-Glutamyl Transpeptidase for Significant Liver Fibrosis Among Patients with Immune-Tolerant Phase Chronic Hepatitis B

SSRN Electronic Journal ◽

10.2139/ssrn.3351986 ◽

2019 ◽

Author(s):

Yu-Rui Liu ◽

Jie-Min Zhang ◽

Zu-Xiong Huang ◽

Meng-Xin Lin ◽

Na-Ling Kang ◽

...

Keyword(s):

Chronic Hepatitis ◽

Liver Fibrosis ◽

Hepatitis B ◽

Chronic Hepatitis B ◽

Predictive Value ◽

Hepatitis B Surface Antigen ◽

Gamma Glutamyl Transpeptidase ◽

Immune Tolerant ◽

Glutamyl Transpeptidase ◽

Significant Liver Fibrosis

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Gamma-Glutamyl Transpeptidase Has Different Efficacy on Biliary Atresia Diagnosis in Different Hospital Patient Groups - An Application of Machine Learning Approach

SSRN Electronic Journal ◽

10.2139/ssrn.3724270 ◽

2020 ◽

Author(s):

YuQi Sun ◽

ShuYang Dai ◽

Shangzhi Hong ◽

Gong Chen ◽

Song Sun ◽

...

Keyword(s):

Machine Learning ◽

Biliary Atresia ◽

Learning Approach ◽

Hospital Patient ◽

Gamma Glutamyl Transpeptidase ◽

Gamma Glutamyl ◽

Machine Learning Approach ◽

Patient Groups ◽

Glutamyl Transpeptidase

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PSIV-11 Effects of Phytogenic Feed Additives on Growth Performance Traits of Finishing Swine

Journal of Animal Science ◽

10.1093/jas/skab054.312 ◽

2021 ◽

Vol 99 (Supplement_1) ◽

pp. 187-188

Author(s):

Pengcheng Xue ◽

Don W Giesting ◽

Mark D Newcomb ◽

Chad M Pilcher ◽

Matthew J Ritter

Keyword(s):

Growth Performance ◽

Random Effect ◽

Live Weight ◽

Feed Additives ◽

Experimental Unit ◽

Finishing Pigs ◽

Performance Traits ◽

And Gender ◽

Dietary Treatments ◽

Commercial Research

Abstract This study was conducted at a commercial research facility and utilized 1,092 finishing pigs (PIC® 337 × Camborough®) in a RCBD with 3 dietary treatments to determine the effects of commercially available phytogenic feed additives on growth performance traits in finishing swine for the last 35 d prior to marketing. The dietary treatments were as follows: 1) Control; 2) Aromex Pro® (AP; Delacon) fed at 0.01%; and 3) Ambitine® (AM; PMI) fed at 0.1%. Pens with 13 pigs/pen and 0.66 m2/pig were randomly allotted to treatments on the basis of live weight and gender. Pigs had ad libitum access to corn-soy diets that met or exceeded the pig’s requirements (NRC, 2012). Aromex Pro® and Ambitine® were added to the diets at the expense of corn. Dietary treatments started on day 0 (BW = 97.7 kg; SEM = 1.04) and were fed throughout the 35 d trial period. On d 21, the two heaviest pigs per pen were marketed, while the remaining pigs in each pen were marketed on d 35. Pigs and feeders were weighed on d 0, 21, and 35. Data were analyzed by using PROC MIXED of SAS® version 9.4, and pen was the experimental unit. The model included the fixed effect of treatment and random effect of replicate. Pre-planned orthogonal contrasts were used to compare AP vs. Control and AM vs. Control. Feeding AP or AM for the last 35 d in finishing both improved (P < 0.05) ADG by 4%, ADFI by 3% and final BW by 1.6 kg over Control, but did not change feed to gain or mortality. These data demonstrate that phytogenic feed additives can improve growth performance traits in finishing swine.

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