scholarly journals Mitigation of Aflatoxin B1 Hepatoxicity by Dietary Hedyotis diffusa Is Associated with Activation of NRF2/ARE Signaling in Chicks

Antioxidants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 878
Author(s):  
Ling Zhao ◽  
Jiang Deng ◽  
Zi-Jian Xu ◽  
Wan-Po Zhang ◽  
Mahmoud Mohamed Khalil ◽  
...  

The objective of this study was to explore the mechanism of Hedyotis diffusa (HD) in mediating the detoxification of aflatoxin B1 (AFB1)-induced hepatic injury in chicks. A total of 144 one-day-old male broilers (Cobb 500) were randomly assigned to four treatment groups (n = 6 cages/diet, 6 chicks/cage). After three days of acclimation, the broilers were fed either a control diet (Control), Control plus 0.5 mg/kg of AFB1, or Control plus 0.5 mg/kg AFB1 with 500 or 1000 mg/kg HD for two weeks. Both serum and liver were collected at the end of the feeding trial for biochemistry, histology, and NF-E2-related nuclear factor 2 (NRF2)/antioxidant response element (ARE) signaling analysis. Compared with Control, the AFB1 treatment caused liver injury and decreased (p < 0.05) body weight gain, feed intake, feed conversion ratio, and serum albumin and total protein by 6.2–20.7%. AFB1 also induced swelling, necrosis, and severe vacuolar degeneration in chicks’ livers. Notably, HD supplementation at 500 and 1000 mg/kg mitigated (p < 0.05) the alterations induced by AFB1. HD supplementation alleviated (p < 0.05) AFB1-induced impairment in hepatic glutathione peroxidase activity, protein carbonyl, and exo-AFB1-8,9-epoxide (AFBO)–DNA concentrations by 57.7–100% and increased (p < 0.05) the activities of superoxide dismutase and catalase by 23.1–40.9% more than those of AFB1 treatment alone. Furthermore, HD supplementation at the two doses upregulated (p < 0.05) NRF2, NAD(P)H: quinone oxidoreductase-1, heme oxygenase-1, glutathione cysteine ligase catalytic subunit, and glutathione-S transferase A2 and A3 in livers relative to the AFB1 group by 0.99–3.4-fold. Overall, dietary supplementation of HD at a high dose displayed better protection effects against aflatoxicosis. In conclusion, a dietary HD supplementation at 500 and 1000 mg/kg protected broilers from AFB1-induced hepatotoxicity, potentially due to the activation of NRF2/ARE signaling in the chicks.

2021 ◽  
Vol 9 (6) ◽  
pp. 1341
Author(s):  
Sarayu Bhogoju ◽  
Collins N. Khwatenge ◽  
Thyneice Taylor-Bowden ◽  
Gabriel Akerele ◽  
Boniface M. Kimathi ◽  
...  

There are well documented complications associated with the continuous use of antibiotics in the poultry industry. Over the past few decades, probiotics have emerged as viable alternatives to antibiotics; however, most of these candidate probiotic microorganisms have not been fully evaluated for their effectiveness as potential probiotics for poultry. Recent evaluation of a metagenome of broiler chickens in our laboratory revealed a prevalence of Lactobacillus reuteri (L. reuteri) and Actinobacteria class of bacteria in their gastrointestinal tract. In this study Lactobacillus reuteri and Streptomyces coelicolor (S. coelicolor) were selected as probiotic bacteria, encapsulated, and added into broiler feed at a concentration of 100 mg/kg of feed. In an 8-week study, 240 one day-old chicks were randomly assigned to four dietary treatments. Three dietary treatments contained two probiotic bacteria in three different proportions (L. reuteri and S. coelicolor individually at 100 ppm, and mixture of L. reuteri and S. coelicolor at 50 ppm each). The fourth treatment had no probiotic bacteria and it functioned as the control diet. L. reuteri and S. coelicolor were added to the feed by using wheat middlings as a carrier at a concentration of 100 ppm (100 mg/kg). Chickens fed diets containing L. reuteri and S. coelicolor mixture showed 2% improvement in body weight gain, 7% decrease in feed consumption, and 6–7% decrease in feed conversion ratios. This research suggests that L. reuteri and S. coelicolor have the potential to constitute probiotics in chickens combined or separately, depending on the desired selection of performance index.


Author(s):  
Vijayalingam Thavasi Alagan ◽  
Rajesh Nakulan Vatsala ◽  
Ilavarasan Sagadevan ◽  
Vairamuthu Subbiah ◽  
Venkataramanan Ragothaman

Abstract Background An effort was made to assess the effectiveness of dietary supplementation of Ulva lactuca (U. lactuca), a seaweed and Azolla individually and in combination on different physiological parameters of Aseel chicken. A total of 40 Aseel chicks of 8 weeks old were allocated into four groups, C1 (control), T1 (Azolla alone), T2 (seaweed alone) and T3 (seaweed plus Azolla). Aseel chicks in C1 were fed with formulated grower feed alone, birds in T1 had control diet with 5% Azolla, birds in T2 had control diet with 3% U. lactuca and birds in T3 had control diet admixtured with 5% of Azolla and 3% of U. lactuca. Parameters were recorded for a continuous period of 2 months in 15 days interval. Results The growth performance was found to be significant (P ≤ 0.05) during 30 days of feed trials and highly significant (P ≤ 0.01) during 45 and 60 days of treatment. Birds in T3 had a higher body weight gain, shank length and feed conversion efficiency followed with T1 and T2 compared to C1. PCV, RBC, WBC and heterophil counts were not influenced (P ≥ 0.05) by dietary treatments. Uric acid, creatinine, AST, glucose, triglycerides and magnesium levels revealed a high significant (P ≤ 0.01) variation, and cholesterol level showed significant (P ≤ 0.05) changes during 30th and 60th day of feed trials between the control and treatment groups. Total protein, globulin, phosphorus and electrolytes like Na, K and Cl levels were not significant (P ≥ 0.05) during 30th day and were highly significant (P ≤ 0.01) during the 60th day of the trial. Conclusions It could be noted that inclusion of U. lactuca and Azolla as feed supplement in grower chicken had a better body weight gain when given in combination (U. lactuca and Azolla) rather than supplemented with the sole entity. Based on the haematological and serum biochemical analysis, the supplementation of U. lactuca and Azolla at the levels included in this trial did not pose any threat to the physiological well-being of Aseel chicken.


2016 ◽  
Vol 88 (2) ◽  
pp. 1011-1021 ◽  
Author(s):  
MOHAMMADREZA POURAKBARI ◽  
ALIREZA SEIDAVI ◽  
LEILA ASADPOUR ◽  
ANDRÉS MARTÍNEZ

Probiotic effects on growth performance, carcass traits, blood parameters, cecal microbiota, and immune response of broilers were studied. Two hundred one-day-old male chickens were allocated to one of five treatments (four replicates of 10 birds per treatment): control, and the same control diet supplemented with 0.005%, 0.01%, 0.015% and 0.02% probiotics. Probiotics in feed at 0.01% or higher levels of supplementation improved body weight gain (+12%) and feed conversion rate (-5%) compared with the control. There were no effects on carcass traits, but the relative weights of drumsticks and wings showed increasing and decreasing linear responses, respectively, to probiotic supplementation level. Blood plasma glucose and albumin contents linearly increased (from 167.1 to 200.5 mg dl-1, and from 1.70 to 3.25 g dl-1) with increasing probiotic supplementation. Triglycerides and cholesterol contents were lower in probiotic supplemented treatments (average contents 71.3 and 125.3 mg dl-1 vs. 92.6 and 149.9 mg dl-1 in the control). Probiotics decreased cecal Escherichia coli counts, but had no effects on immunity related organs or immune response. The linear trends, either positive or negative, observed in many of the parameters studied, suggest that more studies are needed to establish the optimal concentration of probiotics in broiler feed.


2021 ◽  
Vol 42 (4) ◽  
pp. 2471-2488
Author(s):  
Giovanna Bobato Pontarolo ◽  
◽  
Mikael Neumann ◽  
Fernando Braga Cristo ◽  
Edelmir Silvio Stadler Júnior ◽  
...  

Functional additives, such as autolyzed yeasts, have been used to achieve greater production efficiency and animal health. These compounds are also alternatives to the use of performance-enhancing antimicrobials. The objective was to evaluate the productive performance, ingestive behavior, apparent digestibility of feed DM and the carcass characteristics of beef steers finished in feedlot receiving autolyzed yeasts in the diet. The experimental design was randomized blocks, consisting of three treatments and six repetitions, where each repetition was represented by a stall with two animals. 36 bulls, ½ Angus × ½ Nelore blood, from the same herd, with an average age of 11 months and an average body weight of ± 330 kg were used.The treatments were as follows: CON - yeast-free diet; Y4 - yeast diet (4 g animal day-1) and Y7 - yeast diet (7 g animal day-1). The product used is a functional ingredient containing the yeast Saccharomyces cerevisiae. The inclusion of autolyzed yeasts resulted in greater daily body weight gain and better feed conversion in the initial feedlot phase. The apparent digestibility of DM of diets containing autolyzed yeast was superior to the control diet, and its use did not interfere with the animal ingestive behavior. Supplementation with autolyzed yeasts at the inclusion level of 4 g day-1 promoted better results in the finishing of feedlot steers, and that the supplemented groups (4 g animal day-1 and 7 g animal day-1) achieved the same degree of carcass finishing, higher than the control group.


2019 ◽  
Vol 149 (6) ◽  
pp. 894-901 ◽  
Author(s):  
Ling Zhao ◽  
Yue Feng ◽  
Jiang Deng ◽  
Ni-Ya Zhang ◽  
Wan-Po Zhang ◽  
...  

ABSTRACTBackgroundSelenium (Se) plays a protective role in aflatoxin B1 (AFB1)–induced splenic immunotoxicity in chicks.ObjectiveThis study was designed to reveal the underlying mechanism of Se-mediated protection against AFB1-induced splenic injury in broilers.MethodsFour groups of 1-d-old Cobb male broilers (n = 5 cages/diet, 6 chicks/cage) were arranged in a 3-wk 2 × 2 factorial design trial whereby they were fed an Se-deficient, corn- and soy-based diet [base diet (BD), 36 μg Se/kg], BD plus 1.0 mg AFB1/kg, BD plus 0.3 mg Se/kg, or BD plus 1.0 mg AFB1/kg and 0.3 mg Se/kg (as 2-hydroxy-4-methylselenobutanoic acid). Serum and spleen were collected at week 3 to assay for cytokines, histology, redox status, selected inflammation- and apoptosis-related genes and proteins, and the selenogenome.ResultsDietary AFB1 induced growth retardation and spleen injury, decreasing (P < 0.05) body weight gain, feed intake, feed conversion efficiency, and serum interleukin-1β by 17.8–98.1% and increasing (P < 0.05) the spleen index and serum interleukin-6 by 37.6–113%. It also reduced the splenic lymphocyte number, the white pulp region, and histiocyte proliferation in Se-adequate groups. However, Se deficiency aggravated (P < 0.05) these AFB1-induced alterations by 16.2–103%. Moreover, Se deficiency decreased (P < 0.05) splenic glutathione peroxidase (GPX) activity and glutathione-S transferase and glutathione concentrations by 35.6–89.4% in AFB1-exposed groups. Furthermore, Se deficiency upregulated (P < 0.05) the apoptotic (Caspase 3 and Caspase 9) and antimicrobial (β defensin 1 and 2) genes, but downregulated (P < 0.05) antiapoptotic (B-cell lymphoma 2) and inflammatory (E3 ubiquitin-protein ligase CBL-B) genes at the mRNA and/or protein level in AFB1 supplementation groups. Additionally, Se deficiency downregulated (P < 0.05) GPX3, thioredoxin reductase 1 (TXNRD 1), GPX4, and selenoprotein (SELENO) S, and upregulated (P < 0.05) SELENOT and SELENOU in spleen in AFB1 administered groups.ConclusionsDietary Se deficiency exacerbated AFB1-induced spleen injury in chicks, partially through the regulation of oxidative stress, inflammatory and apoptotic signaling, and 6 selenoproteins.


Author(s):  
Waseem Muhammad Zia ◽  
Anjum Khalique ◽  
Saima Naveed ◽  
Jibran Hussain

In total, 240 three-weeks-old sexed birds (191.06±6.01g), 120 + 120 from Lakha, Mushki, Peshaweri and Mianwali varieties of local Aseel were used to determine the influence of selenium forms on growth during three growth phases. Birds were divided into four equal groups, 60 birds/variety (30 + 30 ), further subdivided into A, B and C treatment groups, 10 bids/treatment. Each group was allocated starter, grower and finisher diets. Group A was offered the diet supplemented with 0.3 ppm Se-enriched yeast and the diet of group B included 0.3 ppm sodium selenite, while group C was fed with un-supplemented control diet. Birds were maintained individually for 18 weeks. Feed intake was decreased, while, body weight gain, feed conversion ratio (FCR) and body weight gain were improved in males and females of Lakha, while best results detected in males during all growth phases in Se-enriched yeast fed groups. In conclusion, Se-enriched yeast had the positive effect in improving growth parameters of native Aseel.


2020 ◽  
Vol 40 (1) ◽  
pp. 79-82
Author(s):  
C. T. Ezeokeke

Experiment was carried out to determine performance of day old local fowls, fed supplemented plantain peels meal (PPM). The birds were arranged in completely randomized design having six birds per replicate and two treatments comprising one test diet and one control diet. At starter phase, all the parameters (body weight, body weight gain, feed intake and feed conversion ratio) measured were not significant (p>0.05). The birds on the test diet had average initial weight, 42.00g while that of the control had average weight, 43.75g and at 5 weeks of age average weights of 133.30g and 134.54g (p>0.05) ,respectively. At the finisher phase, all the parameters measured were not significant (p>0.5). The prices per kg of feed for the test and control diets were N93.05 and N95.05, respectively. Therefore, PPM inclusion fed at early stage of life of the birds enhanced performance at a lower cost.


2016 ◽  
Vol 7 (2) ◽  
pp. 29-32
Author(s):  
Zulfan Zulfan ◽  
Sulaiman Ibrahim

ABSTRACT. The aim of this experiment is to investigate a possibility to include tofu by-product in broiler diet without causing adverse performances. This study was conducted in poulty production Lab. Faculty of Agriculture, Syiah Kuala University, Banda Aceh. The study performed 80 unsex day old chick, strain CP 707, Charoen Pokphan product, for which the chikens were divided into for diet treatment. The study was desingned into Completely Randomized Design (CRD) containing for different diet treatment. ei. R1 (Control diet with 0% of tofu by product. R2 (the diet containing 2.5% of tofu by-product), R3 (the diet containing 5% of tofu by-product, and R4 (the diet containing 7.5% of tofu by-product). Each treatment consisted of five chiks. Investigated variables included  final body weight, body weght gain, feed consumption, feed conversion, and income over feed and chick coast (IOFCC). The data were analyzed by an analysis of variance and as a significant effect was detected, the analysis  was continued by Duncan Multiple Range Test based on Steel and Torrie (1991). Result of this study showed that the inclusion of up to 5% of tofu by-product in the diet were not significantly defress body weight, body weight gain, feed consumpsion, and feed conversion compared to the control. However, the inclusion of 7.5% of tofu by-product significantly defress body weght, body weight gain feed consumpsion. The was no significant effect on feed conversion as tofu by-product was included 7.5% in the diet. The inclusion of tofu by-product could minmize diet cost and increase. Income and Over Feed and Chick Cost (IOFCC). However, the highest IOFCC was detected in the untilization of 5% of tofu by-product was still possible to be included in poulty diet up to 5% without significantly depress broiler ferformances.Key word :Tofu by-product; Broiler diet; Body weight; Feed Consumption; Feed conversion


2021 ◽  
Vol 44 (2) ◽  
pp. 160-172
Author(s):  
C L. Nalle ◽  
M. A. J. Supit ◽  
A. H. Angi ◽  
N. S. Yuliani

Aflatoxin B1 (AFB1) is the most dangerous type of aflatoxin that can impair poultry productivity even in low concentrations. The harmful effects of AFB1 should be minimized. The present study was conducted to evaluate the performance, nutrient digestibility, AFB1 residue, and histopathological changes of broilers fed AFB1 diets supplemented with mycosorb. Two hundred-forty 1-day old broiler chicks were allocated randomly to 24 pens (10 birds/pen). The experimental design was a 4 x 2 factorial arrangement, with AFB1 level and yeast glucomannan (mycosorb) supplementation as the main factors.  The treatment diets were control diet; control diet + mycosorb; AFB1 diets (10.36 ppb); AFB1 diets (10.36 ppb) + mycosorb; AFB1 diets (26.97 ppb); AFB1 diets (26.97 ppb) + mycosorb; AFB1 diets (61.06 ppb); AFB1 diets (61.06 ppb) + mycosorb. The results showed that there was no interaction effect was found between the level of AFB1 and mycosorb on the performance and nutrient digestibility. The level of AFB1 did not affect dry matter digestibility coefficient but affected (p<0.05) crude fat digestibility coefficient of broilers. Except for proventriculus, level of AFB1 did not affect bird’s gut size. AFB1 residue was not detected in the broiler tissues fed all diets. Mycosorb alone ameliorated (p<0.05) feed conversion ratio (FCR) of growing birds. The birds fed 61.06 ppb AFB1 diets had darker liver than those fed similar diets added with mycosorb. The addition of mycosorb in AFB1 diets did not heal the hemorrhagic intestines of the birds. In conclusion, feeding low level of AFB1 diets added with mycosorb did not improve the bird’s performance, nutrient digestibility, or gut health. Mycosorb alone improved feed efficiency of the experimental birds.


2021 ◽  
pp. 1-16
Author(s):  
S.Y. Chia ◽  
C.M. Tanga ◽  
I.M. Osuga ◽  
A.O. Alaru ◽  
D.M. Mwangi ◽  
...  

Using black soldier fly (BSF, Hermetia illucens) larvae as a novel protein source substituting fishmeal (FM) in animal feeds is globally gaining momentum. BSF can be reared on agro-industrial residues. However, incorporating BSF larval meal (BSFLM) into finisher pig diets has received inadequate attention. This study evaluated the effects of replacing dietary FM with BSFLM on growth, carcass traits and meat quality of finisher pigs. A control diet (including FM: 0% BSFLM) was compared with four dietary levels of replacement of FM with BSFLM at 25, 50, 75 or 100%. Forty hybrid pigs (crossbreeds of purebred Large White and Landrace) were randomly allocated to the five different dietary treatments. Feed intake, body weight gain and feed conversion ratio were measured. After 98 days of feeding, all pigs were slaughtered for the evaluation of carcass and nutritional content of the organ and muscle tissues. Diet significantly affected pig growth performance. Carcass weight of pigs fed diets with BSFLM replacing FM by 50, 75 or 100% (w/w) was higher than for pigs fed control diet with 100% FM as protein source. Crude protein content of pork tissues was high (65-93% on dry-matter basis) across all dietary groups. Therefore, BSFLM can replace FM in pig feed. This is relevant for commercial pig feed production and provides for the first time a nutritional analysis of pork derived from pigs raised on BSFLM.


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