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Ochieng PE, Croubels S, Kemboi D, Okoth S, De Baere S, Cavalier E, Kang'ethe E, Faas J, Doupovec B, Gathumbi J, Douny C, Scippo ML, Lindahl JF, Antonissen G. Effects of Aflatoxins and Fumonisins, Alone or in Combination, on Performance, Health, and Safety of Food Products of Broiler Chickens, and Mitigation Efficacy of Bentonite and Fumonisin Esterase. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:13462-13473. [PMID: 37655855 DOI: 10.1021/acs.jafc.3c01733] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The current study evaluated the effects of feeding diets contaminated with aflatoxin B1 (AFB1), fumonisins (FBs), or both on the performance and health of broiler chickens and the safety of their food products as well as the efficacy of bentonite and fumonisin esterase to mitigate the effects of these mycotoxins under conditions representative for sub-Saharan Africa (SSA). Four hundred one-day-old Cobb 500 broiler chickens were randomly assigned to 20 treatments with either a control diet, a diet with moderate AFB1 (60 μg/kg feed) or high AFB1 (220 μg/kg feed), or FBs (17,430 μg FB1+FB2/kg feed), alone or in combination, a diet containing AFB1 (either 60 or 220 μg/kg) and/or FBs (17,430 μg FB1+FB2/kg) and bentonite or fumonisin esterase or both, or a diet with bentonite or fumonisin esterase only. The experimental diets were given to the birds from day 1 to day 35 of age, and the effects of the different treatments on production performance were assessed by feed intake (FI), body weight gain (BWG), and feed conversion ratio (FCR). Possible health effects were evaluated through blood biochemistry, organ weights, mortality, liver gross pathological changes, and vaccine response. Residues of aflatoxins (AFB1, B2, G1, G2, M1 and M2) were determined in plasma, muscle, and liver tissues using validated UHPLC-MS/MS methods. The results obtained indicated that broiler chickens fed high AFB1 alone had poor FCR when compared to a diet with both high AFB1 and FBs (p = 0.0063). Serum total protein and albumin from birds fed FBs only or in combination with moderate or high AFB1 or detoxifiers increased when compared to the control (p < 0.05). Liver gross pathological changes were more pronounced in birds fed contaminated diets when compared to birds fed the control or diets supplemented with mycotoxin detoxifiers. The relative weight of the heart was significantly higher in birds fed high AFB1 and FBs when compared to the control or high AFB1 only diets (p < 0.05), indicating interactions between the mycotoxins. Inclusion of bentonite in AFB1-contaminated diets offered a protective effect on the change in weights of the liver, heart and spleen (p < 0.05). Residues of AFB1 were detected above the limit of quantification (max: 0.12 ± 0.03 μg/kg) in liver samples only, from birds fed a diet with high AFB1 only or with FBs or the detoxifiers. Supplementing bentonite into these AFB1-contaminated diets reduced the levels of the liver AFB1 residues by up to 50%. Bentonite or fumonisin esterase, alone, did not affect the performance and health of broiler chickens. Thus, at the doses tested, both detoxifiers were safe and efficient for use as valid means of counteracting the negative effects of AFB1 and FBs as well as transfer of AFB1 to food products (liver) of broiler chickens.
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Affiliation(s)
- Phillis Emelda Ochieng
- Department of Food Sciences, Laboratory of Food Analysis, Faculty of Veterinary Medicine, University of Liège, Liège 4000, Belgium
- Department of Pathobiology, Pharmacology and Zoological Medicine, Laboratory of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium
| | - Siska Croubels
- Department of Pathobiology, Pharmacology and Zoological Medicine, Laboratory of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium
| | - David Kemboi
- Department of Pathobiology, Pharmacology and Zoological Medicine, Laboratory of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium
- Department of Animal Science, Chuka University, P.O. Box 109, 00625 Chuka, Kenya
| | - Sheila Okoth
- Department of Biology, Faculty of Science and Technology, University of Nairobi, P.O. Box 30197, 00100 Nairobi, Kenya
| | - Siegrid De Baere
- Department of Pathobiology, Pharmacology and Zoological Medicine, Laboratory of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium
| | - Etienne Cavalier
- Department of Clinical Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, University Hospital of Liège, Liège 4000, Belgium
| | | | | | | | - James Gathumbi
- Department of Veterinary Pathology, Microbiology, and Parasitology, Faculty of Veterinary Medicine, University of Nairobi, P.O. Box 29053, 00100 Nairobi, Kenya
| | - Caroline Douny
- Department of Food Sciences, Laboratory of Food Analysis, Faculty of Veterinary Medicine, University of Liège, Liège 4000, Belgium
| | - Marie-Louise Scippo
- Department of Food Sciences, Laboratory of Food Analysis, Faculty of Veterinary Medicine, University of Liège, Liège 4000, Belgium
| | - Johanna F Lindahl
- International Livestock Research Institute (ILRI), P.O. Box 30709, 00100 Nairobi, Kenya
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala SE-751 05, Sweden
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala SE-750 07, Sweden
| | - Gunther Antonissen
- Department of Pathobiology, Pharmacology and Zoological Medicine, Laboratory of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium
- Chair Poultry Health Sciences, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium
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Sun Y, Song Y, Long M, Yang S. Immunotoxicity of Three Environmental Mycotoxins and Their Risks of Increasing Pathogen Infections. Toxins (Basel) 2023; 15:toxins15030187. [PMID: 36977078 PMCID: PMC10054902 DOI: 10.3390/toxins15030187] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/06/2023] Open
Abstract
Aflatoxin B1 (AFB1), ochratoxin A (OTA), and deoxynivalenol (DON) are the three mycotoxins that have received the most scholarly attention and have been tested most routinely in clinics. These mycotoxins not only suppress immune responses but also induce inflammation and even increase susceptibility to pathogens. Here, we comprehensively reviewed the determining factors for the bidirectional immunotoxicity of the three mycotoxins, their effects on pathogens, and their action mechanisms. The determining factors include mycotoxin exposure doses and times, as well as species, sex, and some immunologic stimulants. Moreover, mycotoxin exposure can affect the infection severity of some pathogens, including bacteria, viruses, and parasites. Their specific action mechanisms include three aspects: (1) mycotoxin exposure directly promotes the proliferation of pathogenic microorganisms; (2) mycotoxins produce toxicity, destroy the integrity of the mucosal barrier, and promote inflammatory response, thereby improving the susceptibility of the host; (3) mycotoxins reduce the activity of some specific immune cells and induce immune suppression, resulting in reduced host resistance. The present review will provide a scientific basis for the control of these three mycotoxins and also provide a reference for research on the causes of increased subclinical infections.
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Affiliation(s)
- Yuhang Sun
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
| | - Yuqi Song
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
| | - Miao Long
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
| | - Shuhua Yang
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
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Mesgar A, Aghdam Shahryar H, Bailey CA, Ebrahimnezhad Y, Mohan A. Effect of Dietary L-Threonine and Toxin Binder on Performance, Blood Parameters, and Immune Response of Broilers Exposed to Aflatoxin B 1. Toxins (Basel) 2022; 14:toxins14030192. [PMID: 35324689 PMCID: PMC8951136 DOI: 10.3390/toxins14030192] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/26/2022] [Accepted: 03/01/2022] [Indexed: 01/14/2023] Open
Abstract
To evaluate the effect of L-Threonine (L-Thr) and Mycofix® Plus (MP) on aflatoxicosis, an experiment with a 3-way ANOVA model was carried out with 8 replicates and 640 birds. Treatments included two levels of L-Thr (100% and 125% of the requirements, Cobb 500, Cobb-Vantress), Aflatoxin B1 (AFB1) (0, 500 ppb), and MP (0, 1 g/kg). As the main effects showed, AFB1 decreased breast meat yield and carcass percentage (p < 0.001), serum urea, antibody titer against infectious bronchitis virus (IBV), and bone density (p < 0.05), while it increased the plasma concentrations of glucose and alkaline phosphatase (ALP) (p < 0.05). Mycofix Plus improved the grower feed intake (FI), tibia fresh weight, and body weight (BW) to bone weight (p < 0.05). L-Threonine increased the grower FI, breast meat yield, serum aspartate transaminase (AST), and glutathione peroxidase (GPX) (p < 0.05). There were positive interactions with breast meat yield, cholesterol, lactate dehydrogenase (LDH), and IBV titer. Of the treatments used, the combination of L-Thr and MP without AFB1 improved breast meat and carcass percentage. L-Threonine and MP significantly improved IBV titer in birds challenged with AFB1 (p < 0.001). In conclusion, L-Thr and MP were beneficial to improve immunity.
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Affiliation(s)
- Aydin Mesgar
- Department of Animal Science, Shabestar Branch, Islamic Azad University, Shabestar 5381637181, Iran; (A.M.); (H.A.S.); (Y.E.)
| | - Habib Aghdam Shahryar
- Department of Animal Science, Shabestar Branch, Islamic Azad University, Shabestar 5381637181, Iran; (A.M.); (H.A.S.); (Y.E.)
| | - Christopher Anthony Bailey
- Department of Poultry Science, Texas A&M University, College Station, TX 77843, USA
- Correspondence: (C.A.B.); (A.M.)
| | - Yahya Ebrahimnezhad
- Department of Animal Science, Shabestar Branch, Islamic Azad University, Shabestar 5381637181, Iran; (A.M.); (H.A.S.); (Y.E.)
| | - Anand Mohan
- Department of Food Science and Technology, University of Georgia, Athens, GA 30602, USA
- Correspondence: (C.A.B.); (A.M.)
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Zanu HK, Kheravii SK, Bedford MR, Swick RA. Dietary calcium and meat and bone meal as potential precursors for the onset of necrotic enteritis. WORLD POULTRY SCI J 2020. [DOI: 10.1080/00439339.2020.1831419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- H. K. Zanu
- School of Environmental and Rural Science, University of New England, Armidale, Australia
| | - S. K. Kheravii
- School of Environmental and Rural Science, University of New England, Armidale, Australia
| | | | - R. A. Swick
- School of Environmental and Rural Science, University of New England, Armidale, Australia
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Zanu HK, Kheravii SK, Morgan NK, Bedford MR, Swick RA. Interactive effect of dietary calcium and phytase on broilers challenged with subclinical necrotic enteritis: 3. Serum calcium and phosphorus, and bone mineralization. Poult Sci 2020; 99:3617-3627. [PMID: 32616258 PMCID: PMC7597768 DOI: 10.1016/j.psj.2020.04.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/04/2020] [Accepted: 04/07/2020] [Indexed: 01/20/2023] Open
Abstract
Calcium is chelated by phytic acid and forms phytate-mineral complexes reducing Ca availability and the ability of phytase to hydrolyze phytate. An increased Ca concentration in the gut favors the activity of Clostridium perfringens (C. perfringens). Therefore, it was hypothesized that high dietary calcium with high dietary phytase would decrease serum Ca and P and bone mineralization during necrotic enteritis occurrence. A total of 768 one-day-old Ross 308 male chicks were randomly allocated to 8 treatments with 6 replicate pens, each housing 16 birds. A 2 × 2 × 2 factorial arrangement of treatments was applied: dietary Ca (0.6 or 1.0%), phytase (500 or 1,500 FTU/kg), and challenge (no or yes). Half of the birds (384) were challenged with Eimeria spp. on day 9 and C. perfringens strain EHE-NE18 on day 14 and 15. Blood was collected from 2 birds per pen to determine Ca, P, and parathyroid hormone in the serum. The middle toe, tibia, and femur were excised from 2 birds per pen on day 16 and 29 for determination of ash, breaking strength (BS), and mineral concentration. The challenge decreased (P < 0.05) serum Ca+ in birds regardless of dietary Ca level (day 16). There was a challenge × Ca interaction (P < 0.05) for tibial BS (day 16), with challenge being more severe in birds fed high Ca than low Ca diets. A challenge × phytase interaction (P < 0.05) was present for femur ash (day 16), with high phytase only increasing ash in challenged birds. The challenge decreased (P < 0.05) the BS of femur and tibia at each time point. Birds fed high dietary Ca had lower tibial Mg (P < 0.001), Fe (P < 0.001), Na (P < 0.001), and Zn (P < 0.05) concentrations (day 29). Altogether, high dietary Ca and phytase improved bone mineralization showing that attention to Ca and P nutrition and phytase matrix values is warranted when high levels of phytase are used.
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Affiliation(s)
- H K Zanu
- School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia
| | - S K Kheravii
- School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia
| | - N K Morgan
- School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia
| | - M R Bedford
- AB Vista, Marlborough, Wiltshire SN8 4AN, United Kingdom
| | - R A Swick
- School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia.
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Leroy JL, Sununtnasuk C, García-Guerra A, Wang JS. Low level aflatoxin exposure associated with greater linear growth in southern Mexico: A longitudinal study. MATERNAL AND CHILD NUTRITION 2018; 14:e12619. [PMID: 29781250 DOI: 10.1111/mcn.12619] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 01/23/2018] [Accepted: 04/06/2018] [Indexed: 12/23/2022]
Abstract
Aflatoxins are a group of naturally occurring mycotoxins, which can lead to death and are a known cause of hepatocellular carcinoma. AF exposure has been hypothesised to lead to stunted growth in children, but separating the AF effect from other determinants of linear growth retardation is difficult. The study used secondary data from an efficacy trial conducted in young children in southern Mexico to test the comparative efficacy of a milk-based multiple micronutrient-fortified food, a multiple micronutrient syrup, or a multiple micronutrient powder. The effect of serum AFB1 -lysine adduct level on incremental growth was tested using a longitudinal mixed model, controlling for key individual, maternal, and household-level covariates. AFB1 -lysine adduct was detectable in all but 2 of the 347 children in the study (median exposure: 0.82 pg/mg albumin). AF exposure was associated (p < .05) with greater linear growth: an increase equivalent to the sample interquartile range (~0.5 pg AFB1 -lysine/mg albumin) was associated (p < .05) with an increase in the child's height-for-age deficit of 1.5 to 2.0 mm in the 4 months from baseline (average age 8 months) to follow-up (average age 12 months); the magnitude of the difference in the 10-month follow-up was smaller and not statistically significant. This study documents that low-dose AF exposure was associated with greater child linear growth. Given its toxicity and carcinogenicity, our results do not change the urgent need to drastically reduce human AF exposure. Our findings show that the association between AF exposure and linear growth is more complex than previously thought.
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Affiliation(s)
- Jef L Leroy
- Poverty, Health, and Nutrition Division, International Food Policy Research Institute, Washington, District of Columbia, USA
| | - Celeste Sununtnasuk
- Poverty, Health, and Nutrition Division, International Food Policy Research Institute, Washington, District of Columbia, USA
| | - Armando García-Guerra
- Center for Nutrition and Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Jia-Sheng Wang
- Department of Environmental Health Sciences, College of Public Health, University of Georgia, Athens, Georgia, USA
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Possible immunosuppressive effects of drug exposure and environmental and nutritional effects on infection and vaccination. Mediators Inflamm 2015; 2015:349176. [PMID: 25944981 PMCID: PMC4402171 DOI: 10.1155/2015/349176] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Accepted: 03/24/2015] [Indexed: 12/11/2022] Open
Abstract
A variety of drugs which are not primarily considered to be immunosuppressive agents have been
described to modulate the humoral and cellular immune response in humans or animals. Thereby
they may have an influence on the effectiveness and possible side effects of vaccines.
This mini review lists some of the different substance classes and also some of endogeneous, infectious,
nutritional, and environmental influences with suspected capability to interfere with immunizations.
Studies in most cases focused on substances with known immunosuppressive functions, but there is
growing evidence for immunomodulatory effects also of commonly used drugs with wide
distribution. In particular combinations of those antiproliferative and antiphlogistic side effects of
different substance classes have not been studied in detail but may substantially interfere with the
development of a functional humoral and cellular immune response. The drugs of importance
include antipyretics, anticoagulants, tranquilizers, and substances influencing lipid metabolism but
also commonly used drugs of abuse like alcohol or cannabinoids. Additional substances of environmental, nutritional, or microbiological origin may also play a role but their
combinatory/synergistic effects have been disregarded so far due to the lack of systematic data and
the complex study designs necessary to elucidate those complex epidemiologic questions.
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