1
|
Mustafa S, Abbas RZ, Saeed Z, Baazaoui N, Khan AMA. Use of Metallic Nanoparticles Against Eimeria-the Coccidiosis-Causing Agents: A Comprehensive Review. Biol Trace Elem Res 2024:10.1007/s12011-024-04399-8. [PMID: 39354182 DOI: 10.1007/s12011-024-04399-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Accepted: 09/25/2024] [Indexed: 10/03/2024]
Abstract
Coccidiosis is a protozoan disease caused by Eimeria species and is a major threat to the poultry industry. Different anti-coccidial drugs (diclazuril, amprolium, halofuginone, ionophores, sulphaquinoxaline, clopidol, and ethopabate) and vaccines have been used for their control. Still, due to the development of resistance, their efficacy has been limited. It is continuously damaging the economy of the poultry industry because under its control, almost $14 billion is spent, globally. Recent research has been introducing better and more effective control of coccidiosis by using metallic and metallic oxide nanoparticles. Zinc, zinc oxide, copper, copper oxide, silver, iron, and iron oxide are commonly used because of their drug delivery mechanism. These nanoparticles combined with other drugs enhance the effect of these drugs and give their better results. Moreover, by using nanotechnology, the resistance issue is also solved because by using several mechanisms at a time, protozoa cannot evolve and thus resistance cannot develop. Green nanotechnology has been giving better results due to its less toxic effects. Utilization of metallic and metallic oxide nanoparticles may present a new, profitable, and economical method of controlling chicken coccidiosis, thus by changing established treatment approaches and improving the health and production of chickens. Thus, the objective of this review is to discuss about economic burden of avian coccidiosis, zinc, zinc oxide, iron, iron oxide, copper, copper oxide, silver nanoparticles use in the treatment of coccidiosis, their benefits, and toxicity.
Collapse
Affiliation(s)
- Sahar Mustafa
- Department of Clinical Medicine and Surgery, University of Agriculture, Faisalabad, 38040, Pakistan.
| | - Rao Zahid Abbas
- Department of Parasitology, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Zohaib Saeed
- Department of Parasitology, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Narjes Baazaoui
- Applied College Muhayil Assir, King Khalid University, 61421, Abha, Saudi Arabia
| | | |
Collapse
|
2
|
Duan BT, Zhang HY, Song ZH, Han XY, Cui KL, Xu T, Zhang Y, Zhao YJ, Lei X, Tan F, Guo LL, Yang HL, Zhang L, Bai R, Lv XL, Zheng MX. EtROP38 suppresses apoptosis of host cells infected with Eimeria tenella by inhibition of the p38MAPK pathway. Vet Parasitol 2024; 331:110296. [PMID: 39217762 DOI: 10.1016/j.vetpar.2024.110296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 08/22/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024]
Abstract
Coccidiosis is an important parasitic disease that has serious adverse effects on the global poultry industry. The mechanism by which the pathogenic factors of Eimeria tenella damage host cells is unknown. Some kinases from the rhoptry compartment can regulate apoptosis of host cells. This study focused on revealing the role and critical nodes of E. tenella rhoptry protein (EtROP) 38 in controlling the apoptosis of host cells via the P38 mitogen-activated protein kinase (MAPK) signaling pathway. The cells were treated with EtROP38 protein, siRNA p38MAPK, or both. The rate of infection, apoptosis, and the dynamic changes in the expression and activation of key factor genes of the P38MAPK signaling pathway in host cells infected with E. tenella were measured. The results showed that the addition of EtROP38 and/or knockdown of the host cells p38 gene reduced the apoptosis rate of cecal epithelial cells (CECS), decreased the mRNA expressions of p38, p53, c-myc, c-fos, and c-jun and increased the expression of p65, decreased the protein expressions of c-myc, c-fos, and c-jun, decreased the p38 protein phosphorylation level, and increased the p65 protein phosphorylation level in CECS. When E. tenella was inoculated for 4-96 h, the addition of Et ROP38 and/or host cell p38 knockdown both increased the infection rate of host cells, and this effect was more pronounced with the addition of EtROP38 with the host cell p38 knockdown. These observations indicate that E. tenella can inhibits the activation of the p38MAPK signaling pathway in host cells via EtROP38, which suppresses apoptosis in host cells.
Collapse
Affiliation(s)
- Bu-Ting Duan
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Hao-Yu Zhang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Zi-Hao Song
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Xiao-Yi Han
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Kai-Ling Cui
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Tong Xu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Yu Zhang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Yong-Juan Zhao
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China; School of Food and Environment, Jinzhong College of Information, Taigu, Jinzhong, China
| | - Xuan Lei
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Fan Tan
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Lu-Lu Guo
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Hui-Lin Yang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Li Zhang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Rui Bai
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Xiao-Ling Lv
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China
| | - Ming-Xue Zheng
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong, China.
| |
Collapse
|
3
|
Muñoz-Gómez V, Ma T, Li Y, Rasmussen P, Torgerson PR. Global and regional prediction of coccidiosis and ascaridiosis prevalence in extensive backyard chickens in low-income and middle-income countries. Vet Parasitol 2024; 331:110268. [PMID: 39047535 DOI: 10.1016/j.vetpar.2024.110268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/18/2024] [Accepted: 07/18/2024] [Indexed: 07/27/2024]
Abstract
Backyard chickens usually have open housing and scavenge for food, facilitating contact with infective forms of parasites present in the environment and increasing the risk of parasitic infections. Coccidiosis and ascaridiosis are two internal parasites in scavenging chickens that cause production losses to farmers. Prevalence data of these two diseases are scarce in low-income and middle-income countries (LMICs) but necessary to assess the burden of disease in backyard chickens. This study estimates the clinical prevalence of coccidiosis and ascaridiosis at the country and regional levels in all LMICs using regression imputation methods. Regression models were developed with data of known prevalence of these parasites and using primarily climatic factors as predictors. A binomial random effects model was developed for each disease to impute prevalence. The overall estimated prevalence of coccidiosis was 0.39 (95 % CI: 0.37-0.42), with a higher mean prevalence in tropical countries. The overall estimated prevalence of ascaridiosis was 0.23 (95 % CI: 0.22-0.25) with a higher mean prevalence in countries with tropical, temperate and continental climates. The findings of this study can aid to identify the burdens of coccidiosis and ascaridiosis infections across countries and regions, which can inform disease control plans and, and encourage international alliances to facilitate access to preventive measures, improving animal health and reducing production losses.
Collapse
Affiliation(s)
- Violeta Muñoz-Gómez
- Global Burden of Animal Diseases Programme, Liverpool, United Kingdom; Section of Epidemiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
| | - Tian Ma
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academic of Sciences, Beijing, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Yin Li
- Global Burden of Animal Diseases Programme, Liverpool, United Kingdom; Commonwealth Scientific and Industrial Research Organization, Agriculture and Food, Brisbane, QLD, Australia; School of Veterinary Medicine and Centre for Biosecurity and One Health, Harry Butler Institute, Murdoch University, Perth, WA, Australia
| | - Philip Rasmussen
- Global Burden of Animal Diseases Programme, Liverpool, United Kingdom; Department of Veterinary and Animal Sciences, Section for Animal Welfare and Disease Control, University of Copenhagen, Copenhagen, Denmark
| | - Paul R Torgerson
- Global Burden of Animal Diseases Programme, Liverpool, United Kingdom; Section of Epidemiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| |
Collapse
|
4
|
Chen H, Dai Y, Liu J, Duan L, Hu J, Sun S, Zhu G, Ma X, Wan J, Ma N, Zhang X, Wang C, Zhao N. Anti-Eimeria tenella activity of Ethanamizuril in vitro and in vivo. J Vet Med Sci 2024; 86:1008-1015. [PMID: 39069485 PMCID: PMC11422700 DOI: 10.1292/jvms.24-0223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024] Open
Abstract
The prevalence of chicken coccidiosis in the poultry industry is a significant concern, further exacerbated by the emergence of drug-resistant coccidia resulting from the indiscriminate use of medications. Ethanamizuril, a novel triazine anti-coccidial compound, has been used to combat drug resistance. Currently, it is known that Ethanamizuril acts on the second-generation merozoites and early gametogenesis stages of Eimeria. Limited information exists regarding its impact on the early merozoites and exogenous stage of Eimeria. In the present study, the anti-coccidial properties of Ethanamizuril were evaluated both in vitro and in vivo. The in vitro experiments demonstrated that Ethanamizuril effectively inhibits the sporulation of E. tenella oocysts in a dose-dependent manner and significantly reduces the sporozoite excystation rate. Furthermore, in vivo tests revealed that treatment with 10 mg/L Ethanamizuril in drinking water significantly decreased the copy number of first-generation and secondary-generation merozoites in the chicken cecum, indicating that it can inhibit the development of whole schizonts development. Moreover, treatment with Ethanamizuril demonstrated excellent protective efficacy with an anti-coccidial index (ACI) of 180.2, which was manifested through higher body weight gains, lighter cecal lesion, lower fecal oocyst shedding score and reduced liver index. Collectively, this study suggests that Ethanamizuril effectively treats E. tenella infection by inhibiting both endogenous and exogenous stages development.
Collapse
Affiliation(s)
- Hongbo Chen
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Shandong Agricultural University, Tai'an, China
| | - Yindi Dai
- China Animal Nanjing Veterinary Drugs Co., Ltd., Nanjing, China
| | - Jiyu Liu
- College of Veterinary Medicine, Hebei Agricultural University, Hebei, China
| | - Lianmao Duan
- Riverstone Farm (Shandong) Co., Ltd., Shandong, China
| | - Juan Hu
- China Animal Nanjing Veterinary Drugs Co., Ltd., Nanjing, China
| | - Shaohui Sun
- China Animal Husbandry Industry Co., Ltd., Beijing, China
| | - Guangshan Zhu
- China Animal Husbandry Industry Co., Ltd., Beijing, China
| | - Xiaoping Ma
- China Animal Nanjing Veterinary Drugs Co., Ltd., Nanjing, China
| | - Jin Wan
- China Animal Husbandry Industry Co., Ltd., Beijing, China
| | - Nini Ma
- China Animal Husbandry Industry Co., Ltd., Beijing, China
| | - Xiao Zhang
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Shandong Agricultural University, Tai'an, China
| | - Cong Wang
- China Animal Husbandry Industry Co., Ltd., Beijing, China
| | - Ningning Zhao
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Shandong Agricultural University, Tai'an, China
| |
Collapse
|
5
|
Yu LM, Wang ZR, Fan QX, Jia T, Zhang TH, Zhu XQ, Liu Q. mRNA 5-methylcytosine in Eimeria tenella oocysts: An abundant post-transcriptional modification associated with broad-ranging biological processes. Int J Biol Macromol 2024; 280:135817. [PMID: 39306157 DOI: 10.1016/j.ijbiomac.2024.135817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 09/16/2024] [Accepted: 09/18/2024] [Indexed: 09/26/2024]
Abstract
Eimeria tenella is the major causative agent of chicken coccidiosis. 5-Methylcytosine (m5C) is a type of RNA chemical modifications reported to regulate diverse biological processes. However, the distribution and biological functions of m5C in E. tenella mRNAs are yet to be known. Herein, we report transcriptome-wide profiling of mRNA m5C in E. tenella by employing m5C RNA immunoprecipitation followed by a deep-sequencing approach (m5C-RIP-seq). Our data showed that m5C peaks were distributed across the whole mRNA body. Compared with unsporulated oocysts, there were 2813 hypermethylated and 1850 hypomethylated m5C peaks in sporulated oocysts. Generally, a positive correlation between m5C modification and gene expression levels was observed. The mRNA sequencing (RNA-seq) and m5C-RIP-seq data were consistent with the results of the quantitative reverse transcription PCR (RT-qPCR) and methylated RNA immunoprecipitation-qPCR (MeRIP-qPCR), respectively. Gene Ontology (GO) and pathway enrichment analysis predicated diverse biological functions and pathways, including microtubule motor activity, helicase activity, cGMP-PKG signaling pathway, aminoacyl-tRNA biosynthesis, glycolysis/gluconeogenesis, and spliceosome. Meanwhile, stage-specific gene expression signatures of m5C-related regulators were observed. Altogether, our findings reveal the transcriptional significance of m5C modification in E. tenella oocysts, providing resources and clues for further in-depth research.
Collapse
Affiliation(s)
- Lin-Mei Yu
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, PR China
| | - Zi-Rui Wang
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, PR China
| | - Qing-Xin Fan
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, PR China
| | - Tao Jia
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, PR China
| | - Tian-Hong Zhang
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, PR China
| | - Xing-Quan Zhu
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, PR China.
| | - Qing Liu
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, PR China.
| |
Collapse
|
6
|
Zhao D, Suo J, Liang L, Liang R, Zhou R, Ding J, Liu X, Suo X, Zhang S, Tang X. Innovative prevention and control of coccidiosis: targeting sporogony for new control agent development. Poult Sci 2024; 103:104246. [PMID: 39260244 PMCID: PMC11416347 DOI: 10.1016/j.psj.2024.104246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 08/09/2024] [Accepted: 08/18/2024] [Indexed: 09/13/2024] Open
Abstract
Coccidiosis is one of the most significant diseases affecting the poultry industry, with recent estimates indicating that it causes annual losses exceeding £10 billion globally. Increasing concerns over drug residues and resistance have elevated the importance of safe and effective vaccines as the primary method for controlling coccidiosis and other animal diseases. However, current commercial live vaccines for coccidiosis can negatively impact the feed conversion rates of young broilers and induce subclinical symptoms of coccidiosis, limiting their widespread adoption. Eimeria species, the causative agents of coccidiosis, exhibit unique biological characteristics. Their life cycle involves 2 or more generations of schizogony and 1 generation of gametogony within the host, followed by sporogony in a suitable external environment. Sporogony is crucial for Eimeria oocysts to become infectious and propagate within the host. Focusing on the sporogony process of Eimeria presents a promising approach to overcoming technical challenges in the efficient control of coccidiosis, addressing the urgent need for sustainable and healthy farming practices. This paper systematically reviews existing control strategies for coccidiosis, identifies current challenges, and emphasizes the research progress and future directions in developing control agents targeting sporogony. The goal is to provide guidance for the formulation of scientific prevention and control measures for coccidiosis.
Collapse
Affiliation(s)
- Dan Zhao
- Key Laboratory of Animal Biosafety Risk Prevention and Control (North) & Key Laboratory of Veterinary Biological Products and Chemical Drugs of MARA, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; College of Veterinary Medicine, Southwest University, Chongqing, 400715, China
| | - Jingxia Suo
- National Key Laboratory of Veterinary Public Health Security, Key Laboratory of Animal Epidemiology of the MARA, National Animal Protozoa Laboratory & College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Lin Liang
- Key Laboratory of Animal Biosafety Risk Prevention and Control (North) & Key Laboratory of Veterinary Biological Products and Chemical Drugs of MARA, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Ruiying Liang
- Key Laboratory of Animal Biosafety Risk Prevention and Control (North) & Key Laboratory of Veterinary Biological Products and Chemical Drugs of MARA, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Rongqiong Zhou
- College of Veterinary Medicine, Southwest University, Chongqing, 400715, China
| | - Jiabo Ding
- Key Laboratory of Animal Biosafety Risk Prevention and Control (North) & Key Laboratory of Veterinary Biological Products and Chemical Drugs of MARA, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xianyong Liu
- National Key Laboratory of Veterinary Public Health Security, Key Laboratory of Animal Epidemiology of the MARA, National Animal Protozoa Laboratory & College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Xun Suo
- National Key Laboratory of Veterinary Public Health Security, Key Laboratory of Animal Epidemiology of the MARA, National Animal Protozoa Laboratory & College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Sixin Zhang
- College of Veterinary Medicine, Southwest University, Chongqing, 400715, China
| | - Xinming Tang
- Key Laboratory of Animal Biosafety Risk Prevention and Control (North) & Key Laboratory of Veterinary Biological Products and Chemical Drugs of MARA, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| |
Collapse
|
7
|
Zhao Y, Zhang S. Comparative Analysis of Codon Usage Bias in Six Eimeria Genomes. Int J Mol Sci 2024; 25:8398. [PMID: 39125967 PMCID: PMC11313453 DOI: 10.3390/ijms25158398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 07/25/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024] Open
Abstract
The codon usage bias (CUB) of genes encoded by different species' genomes varies greatly. The analysis of codon usage patterns enriches our comprehension of genetic and evolutionary characteristics across diverse species. In this study, we performed a genome-wide analysis of CUB and its influencing factors in six sequenced Eimeria species that cause coccidiosis in poultry: Eimeria acervulina, Eimeria necatrix, Eimeria brunetti, Eimeria tenella, Eimeria praecox, and Eimeria maxima. The GC content of protein-coding genes varies between 52.67% and 58.24% among the six Eimeria species. The distribution trend of GC content at different codon positions follows GC1 > GC3 > GC2. Most high-frequency codons tend to end with C/G, except in E. maxima. Additionally, there is a positive correlation between GC3 content and GC3s/C3s, but a significantly negative correlation with A3s. Analysis of the ENC-Plot, neutrality plot, and PR2-bias plot suggests that selection pressure has a stronger influence than mutational pressure on CUB in the six Eimeria genomes. Finally, we identified from 11 to 15 optimal codons, with GCA, CAG, and AGC being the most commonly used optimal codons across these species. This study offers a thorough exploration of the relationships between CUB and selection pressures within the protein-coding genes of Eimeria species. Genetic evolution in these species appears to be influenced by mutations and selection pressures. Additionally, the findings shed light on unique characteristics and evolutionary traits specific to the six Eimeria species.
Collapse
Affiliation(s)
- Yu Zhao
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
| | | |
Collapse
|
8
|
Du S, Song Z, Cen Y, Fan J, Li P, Si H, Hu D. Susceptibility and cecal microbiota alteration to Eimeria-infection in Yellow-feathered broilers, Arbor Acres broilers and Lohmann pink layers. Poult Sci 2024; 103:103824. [PMID: 38772089 PMCID: PMC11131079 DOI: 10.1016/j.psj.2024.103824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 04/26/2024] [Accepted: 05/02/2024] [Indexed: 05/23/2024] Open
Abstract
Coccidiosis, which is caused by Eimeria species, results in huge economic losses to the poultry industry. Arbor Acres (AA) broilers and yellow-feathered broilers are the dominant broilers in northern and southern China, respectively. However, their susceptibility to coccidiosis has not been fully compared. In this study, the susceptibility of yellow-feathered broilers, AA broilers and Lohmann pink layers to E. tenella was evaluated based on mortality rate, relative body weight gain rate, intestinal lesion score, oocyst output, anticoccidial index (ACI), and cecum weight and length. The yellow-feathered broilers were shown to produce significantly fewer oocysts with higher intestinal lesion score compared to AA broilers, which had the highest growth rates and ACI scores. Subsequently, changes in the cecal microbiota of the 3 chicken lines before and after high-dose infection (1 × 104 oocysts) with E. tenella were determined by 16S rRNA sequencing. The results showed that composition of the microbiota changed dramatically after infection. The abundance of Firmicutes and Bacteroidetes in the infected chickens decreased, and Proteobacteria increased significantly among the different chicken lines. At the genus level, Escherichia increased significantly in all 3 groups of infected chickens, but Lactobacillus decreased to 0% in the infected yellow-feathered broilers. The results of the study indicate that the susceptibility to E. tenella varies among the 3 chicken lines, and that changes in intestinal microbiota by E. tenella-infection among the different chicken lines had a similar trend, but to different degrees. This study provides basic knowledge of the susceptibility in the 3 chicken lines, which can be helpful for the control and prevention of coccidiosis.
Collapse
Affiliation(s)
- Shiqi Du
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Zhixuan Song
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Yucan Cen
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Jingzhi Fan
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Peiyao Li
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Hongbin Si
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, China; Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, 530004, China
| | - Dandan Hu
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, China; Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, 530004, China.
| |
Collapse
|
9
|
Badri M, Olfatifar M, Hayati A, Bijani B, Samimi R, Abdoli A, Nowak O, Diaz D, Eslahi AV. The global prevalence and associated risk factors of Eimeria infection in domestic chickens: A systematic review and meta-analysis. Vet Med Sci 2024; 10:e1469. [PMID: 38814576 PMCID: PMC11138244 DOI: 10.1002/vms3.1469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 03/24/2024] [Accepted: 04/21/2024] [Indexed: 05/31/2024] Open
Abstract
BACKGROUND Eimeria is a protozoan parasite that affects poultry, particularly chickens, causing a disease known as coccidiosis. This disease imposes substantial significant economic challenges to the poultry sector. OBJECTIVES The current study aimed to estimate the global prevalence and associated risk factors of Eimeria in domestic chickens. METHODS Multiple databases (Scopus, PubMed, ProQuest, Web of Science and Google Scholar) were searched for articles published until June 2023. The pooled prevalence was estimated using a random-effects model with a 95% confidence interval. The statistical analysis was conducted using meta packages in R version (3.6.1). RESULTS In total, 41 articles fulfilled the eligibility criteria. The global pooled prevalence was 44.3% (36.9%-51.8%) with Eimeria tenella (38.7%, 30.1%-47.7%) as the most prevalent species. The highest pooled prevalence was related to the Western Pacific Region (80.5%, 72.6%-87.3%) and urban areas (44.4%, 36.5%-52.6%). Moreover, areas with humid subtropical climates represent the highest overall prevalence (75.8%, 46.6%-95.9%). CONCLUSION The necessity for robust and innovative strategies for preventing and managing this disease cannot be overstated. Addressing Eimeria impact is crucial not only for safeguarding poultry health but also for sustaining the economic viability of the poultry industry.
Collapse
Affiliation(s)
- Milad Badri
- Medical Microbiology Research CenterQazvin University of Medical SciencesQazvinIran
| | - Meysam Olfatifar
- Gastroenterology and Hepatology Diseases Research CenterQom University of Medical SciencesQomIran
| | - Alireza Hayati
- Students' Research Committee (SRC)Qazvin University of Medical SciencesQazvinIran
| | - Behzad Bijani
- Medical Microbiology Research CenterQazvin University of Medical SciencesQazvinIran
| | - Rasoul Samimi
- Medical Microbiology Research CenterQazvin University of Medical SciencesQazvinIran
| | - Amir Abdoli
- Zoonoses Research CenterJahrom University of Medical SciencesJahromIran
- Department of Parasitology and MycologyJahrom University of Medical SciencesJahromIran
| | - Oskar Nowak
- Institute of Human Biology and EvolutionFaculty of BiologyAdam Mickiewicz UniversityPoznańPoland
| | - Daniel Diaz
- Facultad de CienciasUniversidad Nacional Autónoma de México, CopilcoCiudad de MéxicoMéxico
| | - Aida Vafae Eslahi
- Medical Microbiology Research CenterQazvin University of Medical SciencesQazvinIran
| |
Collapse
|
10
|
Lozano J, Almeida C, Vicente E, Sebastião D, Palomero AM, Cazapal-Monteiro C, Arias MS, Oliveira M, Carvalho LMD, Paz-Silva A. Assessing the efficacy of the ovicidal fungus Mucor circinelloides in reducing coccidia parasitism in peacocks. Sci Rep 2024; 14:11352. [PMID: 38762506 PMCID: PMC11102495 DOI: 10.1038/s41598-024-61816-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 05/09/2024] [Indexed: 05/20/2024] Open
Abstract
The biological control of gastrointestinal (GI) parasites using predatory fungi has been recently proposed as an accurate and sustainable approach in birds. The current study aimed to assess for the first time the efficacy of using the native ovicidal fungus Mucor circinelloides (FMV-FR1) in reducing coccidia parasitism in peacocks. For this purpose, an in vivo trial was designed in the resident peacock collection (n = 58 birds) of the São Jorge Castle, at Lisbon, Portugal. These animals presented an initial severe infection by coccidia of the genus Eimeria (20106 ± 8034 oocysts per gram of feces, OPG), and thus received commercial feed enriched with a M. circinelloides suspension (1.01 × 108 spores/kg feed), thrice-weekly. Fresh feces were collected every 15 days to calculate the coccidia shedding, using the Mini-FLOTAC technique. The same bird flock served simultaneously as control (t0 days) and test groups (t15-t90 days). The average Eimeria sp. shedding in peacocks decreased up to 92% following fungal administrations, with significant reduction efficacies of 78% (p = 0.004) and 92% (p = 0.012) after 45 and 60 days, respectively. Results from this study suggest that the administration of M. circinelloides spores to birds is an accurate solution to reduce their coccidia parasitism.
Collapse
Grants
- CIISA/FMV Project UIDB/00276/2020 Fundação para a Ciência e a Tecnologia
- CIISA/FMV Project UIDB/00276/2020 Fundação para a Ciência e a Tecnologia
- CIISA/FMV Project UIDB/00276/2020 Fundação para a Ciência e a Tecnologia
- Project PID2020-120208RB-I00 MCINN, Spain; FEDER
- Project PID2020-120208RB-I00 MCINN, Spain; FEDER
- Project PID2020-120208RB-I00 MCINN, Spain; FEDER
- Project PID2020-120208RB-I00 MCINN, Spain; FEDER
- Project ED431B 2021/07 Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia
- Project ED431B 2021/07 Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia
- Project ED431B 2021/07 Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia
- Project ED431B 2021/07 Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia
Collapse
Affiliation(s)
- João Lozano
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477, Lisbon, Portugal
| | - Cristina Almeida
- Exoclinic - Clínica Veterinária de Aves e Exóticos, Quinta de Santo António, 1495-049, Miraflores, Portugal
| | - Eduardo Vicente
- EGEAC - Empresa de Gestão de Equipamentos e Animação Cultural, Castelo de São Jorge, Rua de Santa Cruz, 1100-129, Lisbon, Portugal
| | - Daniela Sebastião
- EGEAC - Empresa de Gestão de Equipamentos e Animação Cultural, Castelo de São Jorge, Rua de Santa Cruz, 1100-129, Lisbon, Portugal
| | - Antonio Miguel Palomero
- Control of Parasites Research Group (COPAR, GI-2120), Department of Animal Pathology, Faculty of Veterinary, University of Santiago de Compostela, 27002, Lugo, Spain
| | - Cristiana Cazapal-Monteiro
- Control of Parasites Research Group (COPAR, GI-2120), Department of Animal Pathology, Faculty of Veterinary, University of Santiago de Compostela, 27002, Lugo, Spain
| | - María Sol Arias
- Control of Parasites Research Group (COPAR, GI-2120), Department of Animal Pathology, Faculty of Veterinary, University of Santiago de Compostela, 27002, Lugo, Spain
| | - Manuela Oliveira
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477, Lisbon, Portugal
- cE3c - Centre for Ecology, Evolution and Environmental Changes & CHANGE - Global Change and Sustainability Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016, Lisbon, Portugal
| | - Luís Madeira de Carvalho
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal.
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477, Lisbon, Portugal.
| | - Adolfo Paz-Silva
- Control of Parasites Research Group (COPAR, GI-2120), Department of Animal Pathology, Faculty of Veterinary, University of Santiago de Compostela, 27002, Lugo, Spain
| |
Collapse
|
11
|
Guo Q, Yu Y, Suo J, Tang X, Zhang S, Crouch C, Bruton B, Tarpey I, Liu X, Zhao G, Suo X. Oral delivery of Eimeria acervulina transfected sequentially with two copies of the VP2 gene induces immunity against infectious bursal disease virus in chickens. Front Vet Sci 2024; 11:1367912. [PMID: 38659453 PMCID: PMC11041627 DOI: 10.3389/fvets.2024.1367912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/12/2024] [Indexed: 04/26/2024] Open
Abstract
Chicken coccidiosis caused by Eimeria spp. can occur on almost all poultry farms, causing huge economic losses to the industry. Genetically manipulated Eimeria parasites as a vaccine vector to deliver viral antigens have been reported. In our preliminary study, transgenic E. acervulina expressing a VP2 gene (Ea-VP2) of the infectious bursal disease virus (IBDV) demonstrated partial protection against IBDV infection. To enhance immune responses, we aimed to increase the VP2 gene copy number in transgenic E. acervulina. In this study, we used a novel plasmid vector carrying a VP2 gene fused with three flag tags and a red fluorescent reporter gene (mCherry). The vector was introduced into Ea-VP2 sporozoites through nucleofection, leading to the generation of Ea-2VP2. Subsequent analysis revealed a notable escalation in the fluorescent rate, increasing from 0.11 to 95.1% following four consecutive passages facilitated by fluorescent-activated cell sorting. Verification via PCR, Western blot, and immunofluorescence confirmed the successful construction of the Ea-2VP2 population. Despite lower fecundity compared to wild-type E. acervulina, Ea-2VP2 maintained immunogenicity. Our research effectively created a transgenic E. acervulina strain transfected sequentially with two copies of the VP2 gene from IBDV. This modification resulted in an increased humoral immune response after primary immunization in chickens. Additionally, it demonstrated a degree of protection within the bursa against IBDV infection. Future studies will focus on further enhancing immune response levels.
Collapse
Affiliation(s)
- Qingbin Guo
- College of Veterinary Medicine, Northwest A&F University, Xianyang, China
- National Animal Protozoa Laboratory and College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Ying Yu
- National Animal Protozoa Laboratory and College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jingxia Suo
- National Animal Protozoa Laboratory and College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xinming Tang
- Key Laboratory of Animal Biosafety Risk Prevention and Control (North) of MARA, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Sixin Zhang
- National Animal Protozoa Laboratory and College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Colin Crouch
- MSD Animal Health, Milton Keynes, United Kingdom
| | - Beth Bruton
- MSD Animal Health, Milton Keynes, United Kingdom
| | - Ian Tarpey
- MSD Animal Health, Milton Keynes, United Kingdom
| | - Xianyong Liu
- National Animal Protozoa Laboratory and College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Guanghui Zhao
- College of Veterinary Medicine, Northwest A&F University, Xianyang, China
| | - Xun Suo
- National Animal Protozoa Laboratory and College of Veterinary Medicine, China Agricultural University, Beijing, China
| |
Collapse
|
12
|
Muñoz-Gómez V, Furrer R, Yin J, Shaw AP, Rasmussen P, Torgerson PR. Prediction of coccidiosis prevalence in extensive backyard chickens in countries and regions of the Horn of Africa. Vet Parasitol 2024; 327:110143. [PMID: 38325134 DOI: 10.1016/j.vetpar.2024.110143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/31/2024] [Accepted: 01/31/2024] [Indexed: 02/09/2024]
Abstract
Coccidiosis is one of the leading morbidity causes in chickens, causing a reduction of body weight and egg production. Backyard chickens are at risk of developing clinical and subclinical coccidiosis due to outdoor housing and scavenging behaviour, jeopardizing food security in households. The objectives of this study were to estimate clinical prevalence of coccidiosis at country and regional levels in the Horn of Africa in extensive backyard chickens. A binomial random effects model was developed to impute prevalence of coccidiosis. Previously gathered prevalence data (n = 40) in backyard chickens was used to define the model. Precipitation (OR: 1.09 (95% CI: 1.05-1.13) and the presence of seasonal rainfall (OR: 1.85, 95% CI: 1.27-2.70) significantly increase prevalence. Results showed an overall prevalence of coccidiosis in the Horn of Africa of 0.21 (95% CI: 0.15-0.29). Ethiopia, the Republic of South Sudan and Kenya showed the highest prevalence and Djibouti the lowest. Significant differences between Djibouti and the countries with highest prevalence were found. However, no evidence of a significant difference between the rest of the countries. Kenya and Ethiopia showed larger prevalence differences between regions. Results could assist with the targeting of testing for coccidiosis, the observation for clinical disease of chickens living in specific regions and as a baseline for the evaluation of future control measures.
Collapse
Affiliation(s)
- Violeta Muñoz-Gómez
- Section of Epidemiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
| | - Reinhard Furrer
- Department of Mathematical Modeling and Machine Learning, University of Zurich, Zurich, Switzerland
| | - Jie Yin
- State Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Beijing Normal University, Beijing, China
| | - Alexandra Pm Shaw
- Infection Medicine, Biomedical Sciences, Edinburgh Medical School, University of Edinburgh, Edinburgh, United Kingdom; Department of Livestock and One Health, Institute of Infection, Veterinary & Ecological Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Philip Rasmussen
- Department of Veterinary and Animal Sciences, Section for Animal Welfare and Disease Control, University of Copenhagen, Copenhagen, Denmark
| | - Paul R Torgerson
- Section of Epidemiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| |
Collapse
|
13
|
Gelinas A, Sudan S, Patterson R, Li J, Huyben D, Barta JR, Kiarie EG. Growth performance, organs weight, intestinal histomorphology, and oocyst shedding in broiler chickens offered novel single strain Bacillus subtilis isolated from camel dung and challenged with Eimeria. Poult Sci 2024; 103:103519. [PMID: 38359772 PMCID: PMC10877951 DOI: 10.1016/j.psj.2024.103519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/21/2024] [Accepted: 01/26/2024] [Indexed: 02/17/2024] Open
Abstract
We evaluated a single strain Bacillus subtilis BS-9 direct-fed microbial (BSDFM) isolated from camel dung in Eimeria challenged broiler chickens. Seven-hundred d-old Ross 708 male chicks were placed in pens (25 birds/pen) and allocated to 2 treatments (n = 14). From d 0 to 13, control pens received untreated water (-BSDFM), and 2 treated pens received water and 2 mL x 108 colony forming unit/bird/d (+BSDFM); daily water intake (WI) was recorded. On d 9, birds in half (+Eimeria) of pens per treatment received of 1 mL of Eimeria maxima and Eimeria acervulina oocysts orally, and the other half (-Eimeria) sterile saline solution. Birds had ad libitum access to feed and a water line from d 14. Feed intake (FI), body weight (BW) and mortality were recorded for calculating BW gain (BWG) and feed conversion ratio (FCR). On d 14 and 35, samples of birds were necropsied for organ weight and intestinal measurements. Excreta samples were collected from d 14 to 19 for oocyst count. There was no treatment effect (P > 0.05) on growth performance or WI on d 0 to 9. There were interactions between BSDFM and Eimeria on d 19 (P = 0.014) and 29 (P = 0.036) BW with unchallenged +BSDFM birds being heavier than birds in the other treatments. The main effects (P < 0.05) on d 10 to 35 FI, BW, and BWG were such that +BSDFM increased and Eimeria decreased (P < 0.01) these parameters. There was interaction (P = 0.022) between BSDFM and Eimeria on d 10 to 35 FCR such that the FCR of challenged -BSDFM birds was poor than that of unchallenged counterparts, but none differed with +BSDFM birds. There was an interaction (P = 0.039) between BSDFM and Eimeria on d 14 bursa weight with challenged birds exhibiting heavier bursa than unchallenged +BSDFM birds. Eimeria reduced (P = 0.01) and BSDFM (P = 0.002) increased the villi height to crypt depth ratio. Results showed that BSDFM supplementation via water can support the growth performance of broiler chickens challenged with Eimeria and may be a strategy to reduce adverse effects of coccidiosis.
Collapse
Affiliation(s)
- Alison Gelinas
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, USA
| | - Sudhanshu Sudan
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, USA
| | | | - Julang Li
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, USA
| | - David Huyben
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, USA
| | - John R Barta
- Department of Pathobiology, University of Guelph, Guelph, ON, N1G 2W1, USA
| | - Elijah G Kiarie
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, USA.
| |
Collapse
|
14
|
Gong Z, Qu Z, Wei H, Chang F, Cai J. Biological characteristics of a precocious line of Eimeria tenella. Parasitol Res 2024; 123:167. [PMID: 38507102 DOI: 10.1007/s00436-024-08190-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/14/2024] [Indexed: 03/22/2024]
Abstract
The Eimeria tenella Yulin strain (EtYL), which is sensitive to most anti-coccidial drugs, was isolated in the Yulin area of Guangxi, China. Then, Eimeria tenella Yulin precocious line (pEtYL), a precocious line with a prepatent period of 108 h, was obtained through early selection. The biological characteristics of pEtYL, including its morphology, purity, oocyst excretion curve, reproductive capacity, pathogenicity, immunogenicity, and preservation time, were comprehensively analyzed. The results showed that the isolated precocious line of E. tenella exhibited high purity, relatively weak pathogenicity, and good immunogenicity and can be used as a live vaccine line for chicken coccidiosis.
Collapse
Affiliation(s)
- Zhenxing Gong
- College of Animal Science and Technology, Ningxia University, Yinchuan, Ningxia Province, 750021, People's Republic of China.
- China Agricultural Vet. Bio. Science and Technology Co., Ltd, Lanzhou, 730046, Gansu, China.
| | - Zigang Qu
- State Key Laboratory of Veterinary Etiological Biology; Key Laboratory of Veterinary Parasitology of Gansu Province, Innovation of Research Program of Gastrointestinal Infection and Mucosal Immunity of Poultry and Pig, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China
| | - Hongmei Wei
- China Agricultural Vet. Bio. Science and Technology Co., Ltd, Lanzhou, 730046, Gansu, China
| | - Fang Chang
- China Agricultural Vet. Bio. Science and Technology Co., Ltd, Lanzhou, 730046, Gansu, China
| | - Jianping Cai
- State Key Laboratory of Veterinary Etiological Biology; Key Laboratory of Veterinary Parasitology of Gansu Province, Innovation of Research Program of Gastrointestinal Infection and Mucosal Immunity of Poultry and Pig, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China.
| |
Collapse
|
15
|
Ahmad R, Yu YH, Hua KF, Chen WJ, Zaborski D, Dybus A, Hsiao FSH, Cheng YH. Management and control of coccidiosis in poultry - A review. Anim Biosci 2024; 37:1-15. [PMID: 37641827 PMCID: PMC10766461 DOI: 10.5713/ab.23.0189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/13/2023] [Accepted: 08/12/2023] [Indexed: 08/31/2023] Open
Abstract
Poultry coccidiosis is an intestinal infection caused by an intracellular parasitic protozoan of the genus Eimeria. Coccidia-induced gastrointestinal inflammation results in large economic losses, hence finding methods to decrease its prevalence is critical for industry participants and academic researchers. It has been demonstrated that coccidiosis can be effectively controlled and managed by employing anticoccidial chemical compounds. However, as a result of their extensive use, anticoccidial drug resistance in Eimeria species has raised concerns. Phytochemical/herbal medicines (Artemisia annua, Bidens pilosa, and garlic) seem to be a promising strategy for preventing coccidiosis, in accordance with the "anticoccidial chemical-free" standards. The impact of herbal supplements on poultry coccidiosis is based on the reduction of oocyst output by preventing the proliferation and growth of Eimeria species in chicken gastrointestinal tissues and lowering intestinal permeability via increased epithelial turnover. This review provides a thorough up-to-date assessment of the state of the art and technologies in the prevention and treatment of coccidiosis in chickens, including the most used phytochemical medications, their mode of action, and the applicable legal framework in the European Union.
Collapse
Affiliation(s)
- Rafiq Ahmad
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047,
Taiwan
| | - Yu-Hsiang Yu
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047,
Taiwan
| | - Kuo-Feng Hua
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047,
Taiwan
| | - Wei-Jung Chen
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047,
Taiwan
| | - Daniel Zaborski
- Department of Ruminants Science, West Pomeranian University of Technology, Klemensa Janickiego 29, 71-270 Szczecin,
Poland
| | - Andrzej Dybus
- Department of Genetics, West Pomeranian University of Technology, 70-310 Szczecin,
Poland
| | - Felix Shih-Hsiang Hsiao
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047,
Taiwan
| | - Yeong-Hsiang Cheng
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047,
Taiwan
| |
Collapse
|
16
|
Zhang L, Song Z, Li P, Song X, Tang X, Hu D. Molecular characterization and immune protective efficacy of 3 Eimeria tenella antigens. Poult Sci 2024; 103:103234. [PMID: 37980744 PMCID: PMC10685023 DOI: 10.1016/j.psj.2023.103234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/18/2023] [Accepted: 10/21/2023] [Indexed: 11/21/2023] Open
Abstract
Avian coccidiosis caused by Eimeria is a serious parasitic disease that poses a threat to the poultry industry. Currently, prevention and treatment mainly rely on the administration of anticoccidials and live oocyst vaccines. However, the prevalence of drug resistance and the inherent limitations of live vaccines have driven the development of novel vaccines. In this study, the surface protein (Et-SAG14), a previously annotated rhoptry protein (Eten5-B), and a gametocyte phosphoglucomutase (Et-PGM1) were characterized and the vaccine potential of the recombinant proteins were evaluated. Et-SAG14 was dispersed in the form of particles in the sporozoite and merozoite stages, whereas Et-PGM1 was distributed in the apical part of the sporozoite and merozoite stages. The previously annotated rhoptry Eten5-B was found not to be located in the rhoptry but distributed in the cytoplasm of sporozoites and merozoites. Immunization with rEten5-B significantly elevated host interferon gamma (IFN-γ) and interleukin 10 (IL-10) transcript levels and exhibited moderate anticoccidial effects with an anticoccidial index (ACI) of 161. Unexpectedly, both recombinant Et-SAG14 and Et-PGM1 immunization significantly reduced host IFN-γ and IL-10 transcription levels, and did not show protection against E. tenella challenge (ACI < 80). These results suggest that the rEten5-B protein can trigger immune protection against E. tenella and may be a potential and effective subunit vaccine for the control of coccidiosis in poultry.
Collapse
Affiliation(s)
- Lei Zhang
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China
| | - Zhixuan Song
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China
| | - Peiyao Li
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China
| | - Xingju Song
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China; Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Xinming Tang
- Institute of Animal Science (IAS), Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Dandan Hu
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China; Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China.
| |
Collapse
|
17
|
Liu Q, Liu X, Zhao X, Zhu XQ, Suo X. Live attenuated anticoccidial vaccines for chickens. Trends Parasitol 2023; 39:1087-1099. [PMID: 37770352 DOI: 10.1016/j.pt.2023.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/30/2023] [Accepted: 09/03/2023] [Indexed: 09/30/2023]
Abstract
Chicken coccidiosis, caused by infection with single or multiple Eimeria species, results in significant economic losses to the global poultry industry. Over the past decades, considerable efforts have been made to generate attenuated Eimeria strains, and the use of live attenuated anticoccidial vaccines for disease prevention has achieved tremendous success. In this review, we evaluate the advantages and limitations of the methods of attenuation as well as attenuated Eimeria strains in a historical perspective. Also, we summarize the recent exciting research advances in transient/stable transfection systems and clustered regularly interspaced short palindromic repeats (CRISPR)-based genome editing developed for Eimeria parasites, and discuss trends and challenges of developing live attenuated anticoccidial vaccines based on transgenesis and genome editing.
Collapse
Affiliation(s)
- Qing Liu
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, PR China
| | - Xianyong Liu
- National Key Laboratory of Veterinary Public Health and Safety, Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture and Rural Affairs, National Animal Protozoa Laboratory & College of Veterinary Medicine, China Agricultural University, Beijing 100093, PR China
| | - Xiaomin Zhao
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Shandong Agricultural University, Taian, Shandong Province 271018, PR China
| | - Xing-Quan Zhu
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, PR China.
| | - Xun Suo
- National Key Laboratory of Veterinary Public Health and Safety, Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture and Rural Affairs, National Animal Protozoa Laboratory & College of Veterinary Medicine, China Agricultural University, Beijing 100093, PR China.
| |
Collapse
|
18
|
Al-Shaebi EM, Al-Quraishy S, Maodaa SN, Abdel-Gaber R. In vitro studies for antiparasitic activities of Punica granatum extract. Microsc Res Tech 2023; 86:1655-1666. [PMID: 37606089 DOI: 10.1002/jemt.24401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/24/2023] [Accepted: 08/08/2023] [Indexed: 08/23/2023]
Abstract
Because of the drug resistance, medicinal plants are used more frequently than coccidiostats to treat and control coccidiosis. Punica granatum is a powerful antioxidant with a variety of medicinal uses. This study used an in vitro experiment to investigate how different P. granatum from Yemen (Y) and Egypt (E) sources affected oocyst sporulation and served as an anthelminthic effector. In contrast to PGE and mebendazole, PGY (200 mg/mL) has the shortest time to paralyze and death the earthworm Eisenia fetida in this investigation. In addition, the treated worm groups' cuticle thickness and shrinkage in comparison to the control group were assessed and contrasted. Eimeria papillata is used as a model protozoan parasite in anticoccidial assays. This study shows that P. granatum affects oocysts sporulation in a dose-dependent manner, with maximal percentages of 100% (PGY) and 48.60% (PGE) at 96 h for P. granatum concentrations of 200 mg/mL. Inhibition (%) was compared to various detergents, as well as positive and negative controls. According to our research, the P. granatum extract had powerful anthelmintic and anticoccidial properties, with the potency changing according to the environmental conditions of each fruit source. RESEARCH HIGHLIGHTS: Habitat of the plant is useful for production and accumulation of some secondary metabolites in plants which be effective for the therapeutic uses. Different parameters in the environmental ecosystem affecting variation in chemical compositions and biological activity of P. granatum.
Collapse
Affiliation(s)
- Esam M Al-Shaebi
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Saleh Al-Quraishy
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Saleh N Maodaa
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Rewaida Abdel-Gaber
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| |
Collapse
|
19
|
Felici M, Tugnoli B, Ghiselli F, Baldo D, Ratti C, Piva A, Grilli E. Investigating the effects of essential oils and pure botanical compounds against Eimeria tenella in vitro. Poult Sci 2023; 102:102898. [PMID: 37573847 PMCID: PMC10448326 DOI: 10.1016/j.psj.2023.102898] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/18/2023] [Accepted: 06/24/2023] [Indexed: 08/15/2023] Open
Abstract
Essential oils (EO) and natural bioactive compounds are well-known antibacterial and anti-inflammatory factors; however, little is known about their anticoccidial activity and mode of action. EO deriving from basil (BEO), garlic (GAR), oregano (OEO), thyme (TEO), and their main bioactive compounds were investigated for their anticoccidial proprieties and compared to salinomycin (SAL) and amprolium (AMP) in vitro. The invasion of Eimeria tenella sporozoites was studied on 2 cell models: Madin-Darby Bovine Kidney (MDBK) cells and primary chicken epithelial cells (cIEC). Invasion efficiency was evaluated at 2 and 24 h postinfection (hpi) with counts of extracellular sporozoites and by detection of intracellular E. tenella DNA by PCR. Results show that at both timepoints, the EO were most effective in preventing the invasion of E. tenella with an average reduction of invasion at 24 hpi by 36% in cIEC and 55% in MDBK. The study also examined cytokine gene expression in cIEC at 24 hpi and found that AMP, BEO, OEO, TEO, carvacrol (CAR), and thymol (THY) significantly reduced interleukin (IL)8 expression, with CAR also reducing expression of IL1β and IL6 compared to the infected control. In addition, this work investigated the morphology of E. tenella sporozoites treated with anticoccidial drugs and EO using a scanning electron microscope. All the treatments induced morphological anomalies, characterized by a reduction of area, perimeter and length of sporozoites. SAL had a significant impact on altering sporozoite shape only at 24 h, whereas CAR and THY significantly compromised the morphology already at 2 hpi, compared to the untreated control. OEO and GAR showed the most significant alterations among all the treatments. The findings of this study highlight the potential of EO as an alternative to traditional anticoccidial drugs in controlling E. tenella invasion and in modulating primary immune response.
Collapse
Affiliation(s)
| | | | | | - David Baldo
- DISTAL, University of Bologna, Bologna, Italy
| | | | - Andrea Piva
- DIMEVET, University of Bologna, Bologna, Italy; Vetagro S.p.A., Reggio Emilia, Italy
| | - Ester Grilli
- DIMEVET, University of Bologna, Bologna, Italy; Vetagro Inc., Chicago, IL 60603, USA.
| |
Collapse
|
20
|
Cai H, Luo S, Liu Q, Zhou Q, Yan Z, Kang Z, Liao S, Li J, Lv M, Lin X, Hu J, Yu S, Zhang J, Qi N, Sun M. Effects of a complex probiotic preparation, Fengqiang Shengtai and coccidiosis vaccine on the performance and intestinal microbiota of broilers challenged with Eimeria spp. Parasit Vectors 2023; 16:253. [PMID: 37501177 PMCID: PMC10375739 DOI: 10.1186/s13071-023-05855-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 06/28/2023] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND Coccidiosis, a prominent intestinal protozoan disease, carries significant economic implications for the poultry industry. The aim of this study was to evaluate the effects of Fengqiang Shengtai (BLES), a probiotics product, and coccidiosis vaccine in modulating the intestinal microbiome and providing insight into mitigating the occurrence and management of avian coccidiosis. METHODS Broilers included in the study were divided into four pre-treatment groups: the Pre-Con group (commercial diet), Pre-BLES group (BLES supplement), Pre-Vac group (coccidiosis vaccination) and Pre-Vac-BLES group (combined vaccination and BLES). Body weight gain, feed consumption and feed conversion ratio were monitored from age 25 to 55 days. Cecum contents were collected at 8 and 15 days of age for comparative analysis of intestinal microbiomes. In the Pre-BLES and Pre-Vac-BLES groups, probiotics were administered at a dose of 0.01 g per chicken between ages 3 to 6 days and 10-13 days. At 3 days of age, chickens in the Pre-Vac and Pre-Vac-BLES groups were vaccinated with 1700 sporulated oocysts of the live coccidiosis vaccine per chicken. At the age of 25 days, Eimeria spp. challenge experiments were performed based on the aforementioned immunization strategy, and the oocysts per gram (OPG) in the feces, intestinal lesion score and intestinal pathological characteristics were evaluated. Specifically, 30 chickens were randomly selected from each group and orally administered 34,000 sporulated oocysts of Eimeria spp. per chicken, re-defined as Eimeria group, BLES-Eimeria group, Vac-Eimeria group and Vac-BLES-Eimeria group, respectively. Additionally, 30 chickens were randomly selected from the Pre-Con group and included as negative control without Eimeria spp. CHALLENGE Intestinal microbiota was sequenced and analyzed when the broilers were 32 days old. RESULTS A significant improvement was observed in body weight gain of the broilers in the Pre-BLES and Pre-Vac-BLES group at 45 days of age. Analysis of the intestinal microbiota revealed a positive correlation between the experimental groups receiving BLES and coccidiosis vaccines at 8 and 15 days of age with the Enterococcus genus and Lachnospiraceae NK4A136 group, respectively. In addition to the reduced lesion score and OPG values, the combination of coccidiosis vaccine and BLES also reduced the intestinal epithelial abscission induced by coccidiosis vaccines. The results of intestinal microbial function prediction demonstrated that N-glycan biosynthesis and ferroptosis were the prominent signal pathways in the Vac-BLES-Eimeria group. CONCLUSIONS Taken together, the results of the present study suggest that supplementation of BLES with coccidiosis vaccine represents a promising strategy for improving growth performance, alleviating clinical manifestations and inducing favorable alterations to the intestinal microbiota in broiler chickens affected by coccidiosis.
Collapse
Affiliation(s)
- Haiming Cai
- Zhaoqing/Maoming Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Jinying Road, Tianhe District, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Shengjun Luo
- Zhaoqing/Maoming Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Jinying Road, Tianhe District, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Qihong Liu
- Jiangsu HFQ Biotechnology Co., Ltd., Haimen, Jiangsu Province, People's Republic of China
| | - Qingfeng Zhou
- Wen's Group Academy, Wen's Foodstuffs Group Co., Ltd., Xinxing, Guangdong, 527400, People's Republic of China
| | - Zhuanqiang Yan
- Wen's Group Academy, Wen's Foodstuffs Group Co., Ltd., Xinxing, Guangdong, 527400, People's Republic of China
| | - Zhen Kang
- Qingdao Vland Biotech Group Co., Ltd., Qingdao, Shandong Province, People's Republic of China
| | - Shenquan Liao
- Zhaoqing/Maoming Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Jinying Road, Tianhe District, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Juan Li
- Zhaoqing/Maoming Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Jinying Road, Tianhe District, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Minna Lv
- Zhaoqing/Maoming Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Jinying Road, Tianhe District, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Xuhui Lin
- Zhaoqing/Maoming Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Jinying Road, Tianhe District, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Junjing Hu
- Zhaoqing/Maoming Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Jinying Road, Tianhe District, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Shuilan Yu
- Wen's Group Academy, Wen's Foodstuffs Group Co., Ltd., Xinxing, Guangdong, 527400, People's Republic of China
| | - Jianfei Zhang
- Zhaoqing/Maoming Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Jinying Road, Tianhe District, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Nanshan Qi
- Zhaoqing/Maoming Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Jinying Road, Tianhe District, Guangzhou, 510640, Guangdong, People's Republic of China.
- Laboratory of Parasitology, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Jinying Road, Tianhe District, Guangzhou, 510640, Guangdong, People's Republic of China.
| | - Mingfei Sun
- Zhaoqing/Maoming Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Jinying Road, Tianhe District, Guangzhou, 510640, Guangdong, People's Republic of China.
- Laboratory of Parasitology, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Jinying Road, Tianhe District, Guangzhou, 510640, Guangdong, People's Republic of China.
| |
Collapse
|
21
|
Sontakke T, Biradar A, Nalage D. The role of genetics in determining resistance to coccidiosis in goats a review of current research and future directions. Mol Biol Rep 2023:10.1007/s11033-023-08520-3. [PMID: 37231218 DOI: 10.1007/s11033-023-08520-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 05/10/2023] [Indexed: 05/27/2023]
Abstract
Coccidiosis is a significant parasitic disease in goats, with significant impacts on animal health, productivity, and economic losses for producers. Although various management practices can help control and prevent coccidiosis, a growing body of research suggests that genetics play an important role in determining resistance to the disease. This review explores the current understanding of the genetics of coccidiosis resistance in goats, including the potential genetic factors and mechanisms involved, and the implications for breeding and selection programs. The review will also discuss current research and future directions in this field, including the use of genomic tools and technologies to better understand the genetics of resistance and to improve breeding programs for coccidiosis resistance in goats. This review will be of interest to veterinary practitioners, goat producers, animal breeders, and researchers working in the field of veterinary parasitology and animal genetics.
Collapse
Affiliation(s)
- Tejswini Sontakke
- Department of Zoology, MGV's, Mahilaratna Pushpatai Hiray Arts, Science and Commerce Mahila Mahavidyalaya Malegaon Camp, Malegaon, 423105, Dist. Nashik (MH), India
| | - Ashwini Biradar
- Department of Microbiology, Dr. B. A. M. University, Sub Campus Osmanabad, Osmanabad, 413501, India
| | - Dinesh Nalage
- Molecular Biology, R & D Department, SRL Limited, Plot No 1, Prime Square building, S.V. Road, Goregaon West, Mumbai, 400062, MH, India.
| |
Collapse
|
22
|
Saeed Z, Alkheraije KA. Botanicals: A promising approach for controlling cecal coccidiosis in poultry. Front Vet Sci 2023; 10:1157633. [PMID: 37180056 PMCID: PMC10168295 DOI: 10.3389/fvets.2023.1157633] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 03/10/2023] [Indexed: 05/15/2023] Open
Abstract
Avian species have long struggled with the problem of coccidiosis, a disease that affects various parts of the intestine, including the anterior gut, midgut, and hindgut. Among different types of coccidiosis, cecal coccidiosis is particularly dangerous to avian species. Chickens and turkeys are commercial flocks; thus, their parasites have remained critical due to their economic importance. High rates of mortality and morbidity are observed in both chickens and turkeys due to cecal coccidiosis. Coccidiostats and coccidiocidal chemicals have traditionally been added to feed and water to control coccidiosis. However, after the EU banned their use because of issues of resistance and public health, alternative methods are being explored. Vaccines are also being used, but their efficacy and cost-effectiveness remain as challenges. Researchers are attempting to find alternatives, and among the alternatives, botanicals are a promising choice. Botanicals contain multiple active compounds such as phenolics, saponins, terpenes, sulfur compounds, etc., which can kill sporozoites and oocysts and stop the replication of Eimeria. These botanicals are primarily used as anticoccidials due to their antioxidant and immunomodulatory activities. Because of the medicinal properties of botanicals, some commercial products have also been developed. However, further research is needed to confirm their pharmacological effects, mechanisms of action, and methods of concentrated preparation. In this review, an attempt has been made to summarize the plants that have the potential to act as anticoccidials and to explain the mode of action of different compounds found within them.
Collapse
Affiliation(s)
- Zohaib Saeed
- Department of Parasitology, University of Agriculture, Faisalabad, Pakistan
| | - Khalid A. Alkheraije
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraidah, Saudi Arabia
| |
Collapse
|
23
|
Pajić M, Todorović D, Knežević S, Prunić B, Velhner M, Andrić DO, Stanimirovic Z. Molecular Investigation of Eimeria Species in Broiler Farms in the Province of Vojvodina, Serbia. Life (Basel) 2023; 13:life13041039. [PMID: 37109568 PMCID: PMC10144399 DOI: 10.3390/life13041039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/25/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Coccidiosis is a significant poultry disease caused by the Eimeria species. This study aims to determine the prevalence of Eimeria spp. on broiler farms in Vojvodina, along with the identification of parasite species, and assess the implemented biosecurity measures. The study was conducted on 100 broiler chicken farms (28 small-sized; 34 medium-sized; 38 large-sized farms) from June 2018 to December 2021. One pooled sample of faeces was collected from three to six-week-old chickens from each farm, and assessment of biosecurity measures was carried out using a questionnaire. Using the PCR method, DNA of Eimeria was found in 59 samples (59%), while 41 samples (41%) were negative. Four species of Eimeria were identified, and their prevalence was the following: E. acervulina (37%), E. maxima (17%), E. mitis (25%) and E. tenella (48%). A significant difference (p < 0.05) was established in the number of oocysts in flocks from small-sized farms compared to medium-sized farms. It was found that regular implementation of disinfection, disinsection and deratisation measures, as well as all the biosecurity measures, can significantly reduce the occurrence of coccidiosis. These results will help to develop better strategies for the control and prevention of coccidiosis on farms.
Collapse
Affiliation(s)
- Marko Pajić
- Scientific Veterinary Institute of "Novi Sad", 21000 Novi Sad, Serbia
| | - Dalibor Todorović
- Scientific Veterinary Institute of "Novi Sad", 21000 Novi Sad, Serbia
| | - Slobodan Knežević
- Scientific Veterinary Institute of "Novi Sad", 21000 Novi Sad, Serbia
| | - Bojana Prunić
- Scientific Veterinary Institute of "Novi Sad", 21000 Novi Sad, Serbia
| | - Maja Velhner
- Scientific Veterinary Institute of "Novi Sad", 21000 Novi Sad, Serbia
| | | | - Zoran Stanimirovic
- Faculty of Veterinary Medicine, University of Belgrade, 11000 Belgrade, Serbia
| |
Collapse
|
24
|
Al-Otaibi T, Hawsah MA, Alojayri G, Mares MM, Aljawdah HMA, Maodaa SN, Al-Shaebi EM, Dkhil MA, Thagfan FA, Al-Quraishy S, Abdel-Gaber R. In vivo anticoccidial, antioxidant, and anti-inflammatory activities of avocado fruit, Persea americana (Lauraceae), against Eimeria papillata infection. Parasitol Int 2023; 95:102741. [PMID: 36871789 DOI: 10.1016/j.parint.2023.102741] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 02/19/2023] [Accepted: 02/23/2023] [Indexed: 03/07/2023]
Abstract
Apicomplexan parasites, especially Eimeria sp., are the main intestinal murine pathogens, that lead to severe injuries to farm and domestic animals. Many anticoccidial drugs are available for coccidiosis, which, leads to the development of drug-resistant parasites. Recently, natural products are considered as an alternative agent to control coccidiosis. This study was designed to evaluate the anticoccidial activity of the Persea americana fruit extract (PAFE) in male C57BL/6 mice. A total of 35 male mice were divided into seven equal groups (1, 2, 3, 4, 5, 6, and 7). At day 0, all groups except the first group which served as uninfected-untreated control were infected orally with 1 × 103E. papillata sporulated oocysts. Group 2 served as uninfected-treated control. Group 3 was considered an infected-untreated group. After 60 min of infection, groups 4, 5, and 6 were treated with oral doses of PAFE aqueous methanolic extract (100, 300, and 500 mg/kg of body weight, respectively). Group 7 was treated with amprolium (a reference drug for coccidiosis). PAFE with 500 mg/kg, was the most effective dose, inducing a significant reduction in the output of oocysts in mice feces (by about 85.41%), accompanied by a significant decrease in the number of the developmental parasite stages and a significant elevation of the goblet cells in the jejunal tissues. Upon treatment, a significant change in the oxidative status due to E. papillata infection was observed, where the levels of glutathione (GSH) increased, while, levels of malondialdehyde (MDA) and nitric oxide (NO) were decreased. In addition, the infection significantly upregulated the inflammatory cytokines of interleukin-1β (IL-1β), tumor necrosis factor-alpha (TNF-α), and interferon-γ (IFN-γ). This increase in mRNA expression of IL-1β, TNF-α, and IFN-γ was about 8.3, 10.6, and 4.5-fold, respectively, which significantly downregulated upon treatment. Collectively, P. americana is a promising medicinal plant with anticoccidial, antioxidant, and anti-inflammatory activities and could be used for the treatment of coccidiosis.
Collapse
Affiliation(s)
- Tahani Al-Otaibi
- Department of Science and Technology, Al-Nairiyah University College, University of Hafr Al-Batin, Hafr Al-Batin 31991, Saudi Arabia
| | - Maysar Abu Hawsah
- Department of Zoology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Ghada Alojayri
- Department of Zoology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Mohammed M Mares
- Department of Zoology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Hossam M A Aljawdah
- Department of Science and Technology, Al-Nairiyah University College, University of Hafr Al-Batin, Hafr Al-Batin 31991, Saudi Arabia
| | - Saleh N Maodaa
- Department of Zoology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Esam M Al-Shaebi
- Department of Zoology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Mohamed A Dkhil
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt; Applied Science Research Center, Applied Science Private University, Amman, Jordan
| | - Felwa A Thagfan
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Saleh Al-Quraishy
- Department of Zoology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Rewaida Abdel-Gaber
- Department of Zoology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia.
| |
Collapse
|
25
|
Jelveh K, Mottaghitalab M, Mohammadi M. Effects of green tea phytosome on growth performance and intestinal integrity under coccidiosis infection challenge in broilers. Poult Sci 2023; 102:102627. [PMID: 36996511 PMCID: PMC10074246 DOI: 10.1016/j.psj.2023.102627] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/28/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
This research examined the effects of feeding phytosomal green tea on broilers infected with coccidia. To provide phytosome, green tea extract was loaded into soy lecithin. Groups of chicks included uninfected and untreated control (NC), infected and untreated control (PC), infected and treated with salinomycin control (SC), infected and treated with 300 and 400 mL of green tea extract (GTE300, GTE400), infected and treated with 200, 300, 400 and 500 mL of green tea phytosome (GTP200, GTP300, GTP400, and GTP500). At 14-days posthatch, chickens were orally gavaged, except the NC group with a coccidia vaccine 30 times larger than the approved dose. Body weight (BW), feed intake (FI), and feed conversion ratio (FCR) were determined at 7, 14, 20, 28, 35, and 42 d. The characteristics of the carcass, internal organs and intestinal morphology were assessed on d 42. Applying overdose of coccidiosis vaccine showed experimental Eimeria infection, led to decrease in FI and BW, and increased FCR compared to PC group (P < 0.001). Meanwhile salinomycin, green tea extract, and green tea phytosome compensated the negative effects of Eimeria infection on growth performance. The treatments did not affect carcass, breast, and thigh relative weights. Interestingly, abdominal fat percent was significantly lower in chickens fed GTP300, GTP400, and GTP500 than in those fed GTE300, GTE300, and GTP200 (P < 0.0001). In comparison to the basal diet plus green tea extract forms and NC groups, the PC group increased the relative weights of the liver, spleen, bursa, and pancreas (P < 0.05). The highest values of villus height and villus height to crypt ratio were obtained in duodenum, jejunum and ileum in GTP300 group (P < 0.0001), while, villi diameter in duodenum and ileum decreased the most in GTP300 and GTP500, respectively (P < 0.0001). Consequently, as natural anticoccidial drug delivery systems, 300 mL of green tea phytosome can be introduced as the optimal dose to maximize the benefits of phytosome for intestinal integrity and reduce the consumption of green tea extract.
Collapse
|
26
|
Feng X, Li T, Zhu H, Liu L, Bi S, Chen X, Zhang H. Effects of challenge with Clostridium perfringens, Eimeria and both on ileal microbiota of yellow feather broilers. Front Microbiol 2022; 13:1063578. [PMID: 36532499 PMCID: PMC9754095 DOI: 10.3389/fmicb.2022.1063578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/17/2022] [Indexed: 10/07/2023] Open
Abstract
In the poultry industry worldwide, Clostridium perfringens has been causing major economic loss as it can cause necrotic enteritis (NE). The coccidial infection has been considered as the most important predisposing factor of NE caused by C. perfringens. In this study, we aimed to advance our knowledge on ileal microbiota of yellow feather broilers under C. perfringens and/or Eimeria challenge. Total of 80 healthy day old yellow feather broilers were randomly assigned to four groups including: Control, C. perfringens challenge group (C. Per), Eimeria challenge group (Cocc), and C. perfringens plus Eimeria challenge group (Comb). On day 14, the Cocc and Comb group broilers were orally gavaged 1 ml PBS solution containing 25,000 oocysts of Eimeria brunetti and 25,000 oocysts of Eimeria maxima. Starting on day 17, the C. Per and Comb group broilers were orally gavaged 10 mL of C. perfringens per bird (4 × 107 CFU/mL, ATCC® 13124™ Strain) every day for 6 days. 16S rRNA gene sequencing was performed on extracted DNA of ileal digesta samples. The results showed that C. perfringens alone did not affect the alpha diversity of ileal microbiome in yellow feather broilers but co-infection with Eimeria significantly decreased the diversity of ileal microbiota. C. perfringens and Eimeria challenge also decreased the relative abundance of beneficial bacteria including Bacteroidetes at the phylum level and Faecalibacterium at the genus level. At the species level, the relative abundance of Candidatus Arthromitus was significantly decreased in the Eimeria challenged groups. This microbial shift information of ileal microbiota under C. Perfringens and Eimeria challenge provide important reference data for the development of therapeutic approaches to necrotic enteritis in yellow-feather broiler chickens.
Collapse
Affiliation(s)
- Xin Feng
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Tonghao Li
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Hui Zhu
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Lidan Liu
- Foshan Zhengdian Biology Technology Co., Ltd., Foshan, China
| | - Shengqun Bi
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Xiaolin Chen
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Huihua Zhang
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| |
Collapse
|
27
|
Jebessa E, Guo L, Chen X, Bello SF, Cai B, Girma M, Hanotte O, Nie Q. Influence of Eimeria maxima coccidia infection on gut microbiome diversity and composition of the jejunum and cecum of indigenous chicken. Front Immunol 2022; 13:994224. [PMID: 36131927 PMCID: PMC9483182 DOI: 10.3389/fimmu.2022.994224] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/12/2022] [Indexed: 11/24/2022] Open
Abstract
Coccidiosis is an economically significant protozoan disease and an intracellular parasite that significantly impacts poultry production. The gastrointestinal tract microbiota plays a central role in host health and metabolism, and these microbes enhance chickens’ immune systems and nutrient absorption. In this study, we analyzed the abundance and diversity of microbiota of the jejunum and cecum of a dual-purpose indigenous Horro chicken following Eimeria maxima infection. We compared microbial abundance, composition, and diversity at the 4- and 7- days post-infection using 16S rRNA gene sequencing. We obtained, on average, 147,742 and 132,986 high-quality sequences per sample for jejunum and cecum content, respectively. Firmicutes, Proteobacteria, Campilobacterota and Bacteroidota were the major microbial phylum detected in the jejunum content. Firmicutes were the dominant phylum for 4- and 7-days jejunum control groups accounting for (>60% of the sequences). In the infected group Campilobacterota was the dominant phylum in the jejunum (> 24% of sequences) at 4-and 7-days post-infection groups, while Proteobacteria was predominant at 4- and 7-days post-infection of the cecum (> 40% of the sequences). The microbial genus Lactobacillus and Helicobacter were found in the jejunum, while Alistipes, Barnesiella and Faecalibacterium were detected in the cecum. In the jejunum, Helicobacter was dominant at 4 -and-7 days post-infection (≥24%), and Lactobacillus was dominant at 4 -and 7- days in the control group (> 50%). In 4- and 7-days post-infection, Alistipes genus was the more prevalent (> 38%) in the cecum. Thus, clear differences were observed in the bacterial microbiota distribution and abundance between the jejunum and cecum, as well as between infected and control groups for both tissues. The results indicate that chicken intestinal microbial imbalance (dysbiosis) is associated with Eimeria parasite infection and will likely affect the host-microbial non-pathogenic and pathogenic molecular interactions.
Collapse
Affiliation(s)
- Endashaw Jebessa
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
- LiveGene – Centre for Tropical Livestock Genetics and Health (CTLGH), International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia
| | - Lijin Guo
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Xiaolan Chen
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
- School of Life Sciences, Chongqing University, Chongqing, China
| | - Semiu Folaniyi Bello
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Bolin Cai
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Mekonnen Girma
- LiveGene – Centre for Tropical Livestock Genetics and Health (CTLGH), International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia
| | - Olivier Hanotte
- LiveGene – Centre for Tropical Livestock Genetics and Health (CTLGH), International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia
- School of Life Sciences, University of Nottingham, University Park, Nottingham, United Kingdom
- *Correspondence: Qinghua Nie, ; Olivier Hanotte, ,
| | - Qinghua Nie
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
- *Correspondence: Qinghua Nie, ; Olivier Hanotte, ,
| |
Collapse
|
28
|
Molecular identification of Eimeria species in liver and feces of naturally infected rabbits in Japan. Parasitol Res 2022; 121:2733-2738. [PMID: 35900601 DOI: 10.1007/s00436-022-07580-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 06/18/2022] [Indexed: 10/16/2022]
Abstract
Among the 11 species of Eimeria in rabbits, some of which are known to be pathogenic and cause enteritis, E. stiedae induces severe liver lesions resulting in elevated mortality. Unlike in other countries, the incidence and prevalence of the parasites in rabbits have not been reported in Japan. In the present study, we histopathologically analyzed hepatic coccidiosis in a rabbit and attempted several primers to genetically identify the parasites and investigated the prevalence of Eimeria species at the same farm. In the liver of the affected rabbit, we observed fibrosis and edema around multiple bile ducts and epithelial cell hyperplasia of the bile ducts. Large numbers of developing parasites of Eimeria spp., mainly oocysts, were present in the bile ducts. PCR and sequencing analyses with the published primers for Cyclospora and Eimeria spp. were used to successfully identify the parasites in the liver as E. stiedae. The oocysts of Eimeria spp. were detected in 13 out of 20 fecal samples collected from other rabbits at the farm, and five Eimeria spp. (E. perforans, E. flavescens, E. exigua, E. magna, and E. vejdovskyi) were genetically confirmed. Our results provide the first indication that Eimeria spp., including highly pathogenic species, are present in Japan and the primer set used herein can be a useful tool for the identification of rabbit Eimeria spp.
Collapse
|
29
|
Nutritional interventions to support broiler chickens during Eimeria infection. Poult Sci 2022; 101:101853. [PMID: 35413594 PMCID: PMC9018146 DOI: 10.1016/j.psj.2022.101853] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/04/2022] [Accepted: 03/08/2022] [Indexed: 11/24/2022] Open
Abstract
Different combinations of gut health-promoting dietary interventions were tested to support broilers during different stages of Eimeria infection. One-day-old male Ross 308 broilers (n = 720) were randomly assigned to one of 6 dietary treatments, with 6 pens per treatment and 20 birds per pen, for 35 d. At 7 d of age (d7), all birds were inoculated with 1000, 100, and 500 sporulated oocysts of E. acervulina, E. maxima, and E. tenella, respectively. A 4-phase feeding schedule was provided. The dietary treatments (TRT) 1 to 4 included the basal diet supplemented with multispecies probiotics from d0 to 9 and coated butyrate and threonine from d28 to 35 but received four different combinations of prebiotics and phytochemicals from d9 to 18 and d18 to 28. The basal diet for the positive control (PC, TRT5) included diclazuril as a anticoccidial. The negative control (NC, TRT6) contained no anticoccidial. Performance was assessed for each feeding phase, and oocyst output, Eimeria lesion scores, cecal weight, litter quality, and footpad lesions were assessed at d14, d22, d28, and d35. Body weight gain (BWG) and feed intake (FI) were not affected by dietary treatment. PC broilers had the best feed conversion ratio (FCR) of all treatments from d0 to 35 (P < 0.001). None of the dietary treatments resulted in better litter quality or reduced footpad lesions compared to the PC. Moreover, the PC was most effective in reducing oocyst output and lesion scores compared to all other treatments. However, broilers that received the multispecies probiotics (d0 to 9), saponins (d9 to 18), saponins, artemisin, and curcumin (d18 to 28), and coated butyrate and threonine (d28 to 35) had the best FCR (P < 0.001) and lowest oocyst output and lesion scores compared to other dietary treatments. This study suggests that although the tested compounds did not perform as well as the anticoccidial, when applied in the proper feeding period, they may support bird resilience during coccidiosis infection.
Collapse
|
30
|
van Eerden E, Santos RR, Molist F, Dardi M, Pantoja-Millas LA, Molist-Badiola J, Baratelli M, Pages M. Efficacy of an attenuated vaccine against avian coccidiosis in combination with feed additives based on organic acids and essential oils on production performance and intestinal lesions in broilers experimentally challenged with necrotic enteritis. Poult Sci 2022; 101:101848. [PMID: 35544960 PMCID: PMC9118146 DOI: 10.1016/j.psj.2022.101848] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/25/2022] [Accepted: 02/25/2022] [Indexed: 11/02/2022] Open
Abstract
Several factors predisposing to necrotic enteritis (NE) have been identified, including diet and Eimeria spp. infestations. Coccidiosis vaccines are indicated to decrease the intestinal lesions caused by specific Eimeria species that are a known predisposing factor to NE and, consequently, these vaccines could be a holistic approach to the control of NE disease and an alternative solution to coccidiostats. Besides, feed additives have also gained special attention from the poultry industry as an alternative solution to antibiotics to prevent NE as well as other bacterial enteritis. Then, the combination of vaccination against coccidiosis and the supplementation of the diet with feed additives could be a composite approach to the control of NE problems triggered by Eimeria spp. infestation. The objective of this study was to test the efficacy of an attenuated coccidiosis vaccine (EVANT) in combination with different feed additives to prevent the loss of production performance and intestinal lesions in broilers challenged with NE. Healthy day-old broilers (n = 960) were randomly allocated to 6 groups (8 cages/group). Groups 1–2 were left unvaccinated. Groups 3–6 were vaccinated following the manufacturer's instructions. Chickens were grown using a diet favoring the intestinal proliferation of Clostridium perfringens. Moreover, the diets of groups 4–6 were supplemented with medium chain fatty acids (MCFA), butyric acid or phytogenic feed additives (PFA), respectively. A NE infection model was used to challenge groups 2–6; chickens were orally infected with Eimeria maxima (4,500 oocysts) and then C. perfringens (108 CFU) at 15 and 20 d, respectively. Birds were monitored and productive parameters recorded until 42 d; intestinal lesions were scored. Results showed that coccidiosis vaccination, with or without the addition of feed additives, decreased intestinal lesions associated with NE and improved the performance of the birds. Besides, the addition of MCFA to the diet decreased intestinal lesions associated to NE in vaccinated animals compared to all treatment groups. Moreover, the same additive improved the feed conversion rate. Therefore, vaccination with a live attenuated coccidiosis vaccine together with in-feed inclusion of MCFA might be a solution to reduce NE in broilers raised antimicrobial- and coccidiostat-free.
Collapse
|
31
|
Identification and Protective Efficacy of Eimeria tenella Rhoptry Kinase Family Protein 17. Animals (Basel) 2022; 12:ani12050556. [PMID: 35268126 PMCID: PMC8908856 DOI: 10.3390/ani12050556] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/15/2022] [Accepted: 02/18/2022] [Indexed: 01/06/2023] Open
Abstract
Simple Summary Approximately 8000 genes of Eimeria tenella have been found by genome sequencing, whereas very few data are currently available regarding E. tenella rhoptry kinase family proteins. In this study, the coding sequence of the rhoptry kinase family protein 17 of E. tenella (EtROP17) was cloned and expressed in Escherichia coli, and then the protective efficacy of the recombinant EtROP17 (rEtROP17) was assessed in chickens. Sequence analysis showed that a single base difference at position 1901 of the ROP17 of the SD-01 strain was observed compared with that of the Houghton strain. EtROP17 was expressed in the merozoite stage of E. tenella and may be a potential vaccine candidate against coccidiosis. Abstract Eimeria tenella encodes a genome of approximately 8000 genes. To date, however, very few data are available regarding E. tenella rhoptry kinase family proteins. In the present study, the gene fragment encoding the mature peptide of the rhoptry kinase family protein 17 of E. tenella (EtROP17) was amplified by PCR and expressed in E. coli. Then, we generated polyclonal antibodies that recognize EtROP17 and investigated the expression of EtROP17 in the merozoite stage of E. tenella by immunofluorescent staining and Western blot analysis. Meanwhile, the protective efficacy of rEtROP17 against E. tenella was evaluated in chickens. Sequencing analysis showed that a single base difference at sequence position 1901 was observed between the SD-01 strain and the Houghton strain. EtROP17 was expressed in the merozoite stage of E. tenella. The results of the animal challenge experiments demonstrated that vaccination with rEtROP17 significantly reduced cecal lesions and oocyst outputs compared with the challenged control group. Our findings indicate that EtROP17 could serve as a potential candidate for developing a new vaccine against E. tenella.
Collapse
|
32
|
Li JY, Huang HB, Wang N, Shi CW, Pan TX, Zhang B, Yang GL, Wang CF. Sanguinarine induces apoptosis in Eimeria tenella sporozoites via the generation of reactive oxygen species. Poult Sci 2022; 101:101771. [PMID: 35272108 PMCID: PMC8913342 DOI: 10.1016/j.psj.2022.101771] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/21/2022] [Accepted: 01/22/2022] [Indexed: 10/25/2022] Open
|