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Agani Agani Z, Pomalegni S CB, Akouedegni C G, Boko K C, Bello Orou D, Dossou J, Babatounde S. Ethnoveterinary study of galactogenic recipes used by ruminant breeders to improve milk production of local cows in Benin Republic. J Ethnopharmacol 2022; 285:114869. [PMID: 34896209 DOI: 10.1016/j.jep.2021.114869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In Benin, traditional recipes are used to improve livestock dairy performance, but they are not sufficient documented. The study aimed to inventory the galactogenic recipes used by herders to improve production in cow farming. AIM OF THE STUDY The study aimed to inventory the galactogenic recipes used by herders to improve production in cow farming. MATERIAL AND METHODS We conducted semi-structured interviews among 65 peuls camps, 4 bioclimatic zones, and 565 farmers dialogue partners, including agro-pastoralist, healers and pastoralists from the rainy season April and May 2019. Detailed information about homemade herbal remedies of galactogenic recipes (plant species, plant part, manufacturing process) and the corresponding use reports (dialogue partner, category of use and route of administration) was collected. Then other to classify the various recipes identified into homogeneneous groups according to their effectiveness in stimulating milk, a numerical classification was carried out on the recipes taking into account the milk gain. RESULTS They showed that Peuls and Gandos sociocultural groups have a better knowledge of galactogenic recipes. Of the 295 recipes inventoried, 102 frequently cited recipes were divided into two groups. Group 2, consisting of 16 recipes, had a significantly (p < 0.001) higher milk yield than group 1. Vigna unguiculata (L.) Walp. and Arachis hypogaea L. were the main ingredients of the recipes (respectively 56 and 31% of incorporation rate). The composition of the recipes varied according to the agro-ecological zones. Herders in Northern Benin used more recipes based on Bobgunnia madagascariensis (Harms) J.H.Kirkbr. & Wiersema, Saba comorensis (Bojer ex A.DC.) Pichon and Euphorbia balsamifera Aiton. Those in Southern Benin mainly used recipes based on Gardenia aqualla associated with Vigna unguiculata (L.) Walp or Arachis hypogaea L.. To improve the effectiveness of galactogenic recipes, socio-cultural and magical-religious practices are used when procuring the plant material to be used, preparing the galactogen and administering the recipe to the animals. These include pronounced incantations or recited Koranic verses. The most commonly used route of administration is the oral route with an average treatment duration not exceeding 5 days. CONCLUSION The study reveals that the majority of breeders (90%) opt for the use of galactogenic plants rather than synthetic products to improve milk production.
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Affiliation(s)
- Zénabou Agani Agani
- Laboratory of Zootechnics, Faculty of Agricultural Sciences, University of Abomey Calavi, 01 BP 526, Cotonou, Benin.
| | - C B Pomalegni S
- National Institute of Agricultural Research of Benin (INRAB) Laboratory of Animal Science and Fishery Research, Benin
| | | | | | | | - Joseph Dossou
- Laboratory of Food Process Bioengineering LaBioPA, Benin
| | - Séverin Babatounde
- Laboratory of Zootechnics, Faculty of Agricultural Sciences, University of Abomey Calavi, 01 BP 526, Cotonou, Benin
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Lin XJ, Li L, Gou ZY, Fan QL, Wang YB, Jiang SQ. Reproductive performance, metabolism and oxidative stress profile in Chinese yellow-feathered broiler breeder hens fed multiple levels of isoleucine. Br Poult Sci 2021; 62:509-516. [PMID: 33764231 DOI: 10.1080/00071668.2021.1894322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
1. This experiment was conducted to evaluate the effects of dietary isoleucine (Ile) on reproductive performance and certain indices of metabolism and oxidative stress in Chinese yellow-feathered broiler breeder hens.2. A total of 600, 40-week-old Chinese yellow-feathered broiler breeder hens were fed a basal diet formulated with maize, corn gluten meal and spray-dried blood cell meal containing 3.3 g/kg Ile, or supplemented to contain 4.5, 5.7, 6.9, or 8.1 g/kg Ile for five weeks. Each dietary treatment had six replicates with 20 birds per replicate. After three weeks of receiving the trial diets, 24 eggs were collected at random from each replicate to measure egg quality. Starting after four weeks of treatment, 50 settable eggs per replicate were collected for 7 d in succession for hatching. After five weeks of being fed the treatment diets, birds were slaughtered for tissue and organ collection.3. For the overall period, laying rate, egg weight, egg mass and hatchling weight linearly (P < 0.05) and quadratically (P < 0.05) increased with dietary Ile levels. Final body weight, feed intake and relative liver weight of birds fed 3.3 g/kg Ile was lower compared to birds fed the other diets (P < 0.05). There was no effect of Ile level on egg quality (P > 0.05). Hatchling weight was linearly (P < 0.05) and quadratically increased (P < 0.05) in line with dietary supplemental Ile.4. After three weeks on the trial diets, birds fed the diet containing 3.3 g/kg Ile had decreased blood TG concentrations compared to breeders fed 6.9 or 8.1 g/kg Ile (P < 0.05). Activities of CK were significantly higher in breeders fed the 3.3 g/kg Ile diet compared to all other levels of dietary Ile after five weeks of treatment. A quadratic effect (P < 0.05) was evident for glucose at 8.1 g/kg Ile level. After five weeks of treatment, plasma TG concentrations in birds fed 3.3 g/kg Ile were significantly lower than in birds fed all other levels of Ile. Glucose concentrations in breeder hens receiving the 3.3 g/kg Ile diet were lowest and the highest concentrations were in birds fed 5.7 g/kg Ile (P < 0.05). Plasma activities of LDH were highest in breeders on the 3.3 g/kg Ile diet but were only significantly different (P < 0.05) for birds fed 5.7 g/kg Ile.5. The current study indicated that Ile deficiency decreased reproductive performance and appeared to serve as a stressor. The optimal dietary Ile for Chinese yellow-feathered broiler breeder hens in the laying period was 5.79 g/kg feed (0.75 g/d).
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Affiliation(s)
- X J Lin
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, P. R. China
| | - L Li
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, P. R. China
| | - Z Y Gou
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, P. R. China
| | - Q L Fan
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, P. R. China
| | - Y B Wang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, P. R. China
| | - S Q Jiang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, P. R. China
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Gouda A, Tolba SA, M El-Moniary M. Impact of in ovo Injection of Certain Vitamins to Improve the Physiological Conditions of Hatching Chicks. Pak J Biol Sci 2021; 24:268-273. [PMID: 33683057 DOI: 10.3923/pjbs.2021.268.273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVE Exposure of breeder hens to hyperthermia causes disturbances in the breeder's eggs due to insufficient nutrient deposition from heat-stressed hen into the egg. Therefore, this experiment was conducted to test the hypothesis that the adverse effects of heat stress on hatchability, embryonic growth and hatchling health status could be ameliorated by in ovo injection of certain vitamins. MATERIALS AND METHODS A total of 270 fertile eggs from Fayoumi breeders (45 weeks) were randomly assigned to 6 groups (45 eggs/group). During the egg collection period in the summer season, birds were maintained at 9-13°C above the standard thermo-neutral temperature. The experimental groups were: negative control (eggs not injected either with vitamins or Sterile Deionized Water (SDW)), positive control (eggs injected with 0.1 mL of SDW/egg) and four other treatments in which vitamins A, E, D3 and folic acid were injected (1 mg of each vitamin dissolved in 0.1 mL of SDW/egg). The eggs were incubated at 37.7°C and 65% relative humidity in an automatic incubator. RESULTS The residual yolk, embryo length and weight and hatchability% were improved (p<0.01) in all vitamins in ovo injected groups compared with both controls. Hatchling weight and the assessed health status indices were increased (p<0.01) in all vitamins in ovo injected groups compared with both controls. CONCLUSION It is concluded that direct injection of vitamins into eggs laid by heat-stressed breeders is an effective way of reducing the disturbance in eggs resulting from inadequate nutrient deposition from hen to egg.
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Bravo C, Pays O, Sarasa M, Bretagnolle V. Revisiting an old question: Which predators eat eggs of ground-nesting birds in farmland landscapes? Sci Total Environ 2020; 744:140895. [PMID: 32721676 DOI: 10.1016/j.scitotenv.2020.140895] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/09/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
Nest predation is a major cause of reproductive failure in birds, but predator identity often remains unknown. Additionally, although corvids are considered major nest predators in farmland landscapes, whether breeders or floaters are involved remains contentious. In this study, we aimed to identify nest predators using artificial nests, and test whether territorial or non-breeders carrion crow (Corvus corone) and Eurasian magpie (Pica pica) were most likely involved. We set up an experiment with artificial ground nests (n = 1429) in farmland landscapes of western France, and assessed how different combinations of egg size and egg material (small plasticine egg, large plasticine egg, quail and natural hen eggs) might influence predation rates and predator species involved. Nest predators were identified using remotely triggered cameras and marks left in plasticine eggs. Corvids were by far the predators most involved (almost 80% of all predation events), independent of egg type. Carrion crows alone were involved in 60% of cases. Probability of predation increased with egg size, and predation rate was higher for natural than for artificial eggs, suggesting that, in addition to egg size, predators might perceive plasticine and natural eggs differently. Predation rates of artificial nests by corvids were related significantly to corvid abundance, and far more to breeder than floater abundances, for both carrion crows and magpies. This study emphasizes the importance of identifying predators at species level, and considering their social status when assessing corvid abundance impact on prey population dynamics. Combining camera traps and plasticine eggs can achieve this objective. Given the high predation rate by carrion crows, a better understanding of landscape-mediated changes in predator diet seems mandatory to design mitigation schemes able to confront ecological challenges raised by generalist predators.
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Affiliation(s)
- Carolina Bravo
- Centre d'Etudes Biologiques de Chizé, UMR 7372, CNRS and La Rochelle Université, F-79360 Beauvoir-sur- Niort, France; LETG-Angers, UMR 6554, CNRS, Université d'Angers, 49045 Angers, France.
| | - Olivier Pays
- LETG-Angers, UMR 6554, CNRS, Université d'Angers, 49045 Angers, France; REHABS International Research Laboratory, CNRS-Université Lyon 1-Nelson Mandela University, George Campus, Madiba drive, 6531 George, South Africa
| | - Mathieu Sarasa
- BEOPS, 1 Esplanade Compans Caffarelli, 31000 Toulouse, France; Fédération Nationale des Chasseurs, 92136 Issy-les-Moulineaux cedex, France
| | - Vincent Bretagnolle
- Centre d'Etudes Biologiques de Chizé, UMR 7372, CNRS and La Rochelle Université, F-79360 Beauvoir-sur- Niort, France; LTSER "Zone Atelier Plaine & Val de Sèvre", CNRS, 79360 Villiers-en-Bois, France
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Mourabit N, Arakrak A, Bakkali M, Zian Z, Bakkach J, Laglaoui A. Nasal carriage of Staphylococcus aureus in farm animals and breeders in north of Morocco. BMC Infect Dis 2020; 20:602. [PMID: 32799799 PMCID: PMC7429463 DOI: 10.1186/s12879-020-05329-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 08/06/2020] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND The objectives of this study were to determine for the first time, in Morocco, the nasal carriage rate, antimicrobial susceptibility profiles and virulence genes of Staphylococcus. aureus isolated from animals and breeders in close contact. METHODS From 2015 to 2016, 421 nasal swab samples were collected from 26 different livestock areas in Tangier. Antimicrobial susceptibility phenotypes were determined by disk diffusion according to EUCAST 2015. The presence of nuc, mecA, mecC, lukS/F-PV, and tst genes were determined by Polymerase Chain Reaction (PCR) for all isolates. RESULTS The overall S. aureus nasal carriage rate was low in animals (9.97%) and high in breeders (60%) with a statistically significant difference, (OR = 13.536; 95% CI = 7.070-25.912; p < 0.001). In general, S. aureus strains were susceptible to the majority of antibiotics and the highest resistance rates were found against tetracycline (16.7% in animals and 10% in breeders). No Methicillin-Resistant S. aureus (MRSA) was detected in animals and breeders. A high rate of tst and lukS/F-PV genes has been recovered only from animals (11.9 and 16.7%, respectively). CONCLUSION Despite the lower rate of nasal carriage of S. aureus and the absence of MRSA strains in our study, S. aureus strains harbored a higher frequency of tst and lukS/F-PV virulence genes, which is associated to an increased risk of infection dissemination in humans. This highlights the need for further larger and multi-center studies to better define the transmission of the pathogenic S. aureus between livestock, environment, and humans.
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Affiliation(s)
- Nadira Mourabit
- Higher Institute of Nursing Professions and Technical Health of Tangier, Tetouan, Morocco
- Biotechnology and Biomolecule Engineering Research Laboratory, Faculty of Sciences and Techniques of Tangier, Abdelmalek Essaadi University, Tetouan, Morocco
| | - Abdelhay Arakrak
- Biotechnology and Biomolecule Engineering Research Laboratory, Faculty of Sciences and Techniques of Tangier, Abdelmalek Essaadi University, Tetouan, Morocco
| | - Mohammed Bakkali
- Biotechnology and Biomolecule Engineering Research Laboratory, Faculty of Sciences and Techniques of Tangier, Abdelmalek Essaadi University, Tetouan, Morocco
| | - Zeineb Zian
- Biomedical Genomics and Oncogenetics Research Laboratory, Faculty of Sciences and Techniques of Tangier, Abdelmalek Essaadi University, Tetouan, Morocco
| | - Joaira Bakkach
- Biomedical Genomics and Oncogenetics Research Laboratory, Faculty of Sciences and Techniques of Tangier, Abdelmalek Essaadi University, Tetouan, Morocco
| | - Amin Laglaoui
- Biotechnology and Biomolecule Engineering Research Laboratory, Faculty of Sciences and Techniques of Tangier, Abdelmalek Essaadi University, Tetouan, Morocco
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Stavrou V, Bardaka F, Karetsi E, Seitanidis G, Daniil Z, Gourgoulianis KI. The effect of physical strain on breeders patients with obstructive sleep apnea syndrome. Respir Physiol Neurobiol 2018; 260:137-139. [PMID: 30472194 DOI: 10.1016/j.resp.2018.11.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 11/21/2018] [Accepted: 11/21/2018] [Indexed: 10/27/2022]
Abstract
AIM The purpose of this study was to investigate the cardiopulmonary exercise testing (CPET) in breeders patients with obstructive sleep apnea syndrome (OSAS). METHOD Thirty-two male participants (Age: 42.2 ± 7.3yrs, BMI: 29.5 ± 2.2 kg/m2) underwent full overnight polysomnography (PSG) and were divided into two groups (OSAS group: n = 20 vs. Control group: n = 12). 72-hours after the PSG study, they were subjected to CPET. The Independent t-test was used to measure the differences between the groups. Pearson's correlation coefficient was used among the parameters of CPET and PSG study. RESULTS The results showed difference between the groups (OSAS vs. Control) during CPET in end-tidal, CO2 pressure in the peak of the exercise (38.7 ± 3.0 vs. 35.4 ± 5.5 mmHg, p = 0.031) and mean arterial pressure (122.7 ± 10.6 vs. 113.7 ± 11.8 mmHg, p = 0.035). Correlation results showed differences between the physical strain and the polysomnography study in physical strain parameters "walking duration per day with the herd" and oxygen desaturation index during sleep (r = 0.370, p = 0.037) and minimum oxygen saturation during sleep (r=-.374, p = 0.035), in the parameter "milking duration" and apnea (r = 0.392, p = 0.048), AHI (r = 0.374, p = 0.035) and oxygen desaturation index during sleep (r = 0.434, p = 0.013). The physical strain parameter "working hours per day" wasn't related to any parameter of the polysomnography study. CONCLUSION The daily physical activity may have a protective role during the course of the disease in patients with OSAS.
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Affiliation(s)
- Vasileios Stavrou
- Laboratory of Cardio-Pulmonary Testing, Department of Respiratory Medicine, University of Thessaly, Larissa, Greece.
| | - Fotini Bardaka
- Laboratory of Cardio-Pulmonary Testing, Department of Respiratory Medicine, University of Thessaly, Larissa, Greece
| | - Eleni Karetsi
- Laboratory of Cardio-Pulmonary Testing, Department of Respiratory Medicine, University of Thessaly, Larissa, Greece
| | - Giorgos Seitanidis
- Laboratory of Sleep Disorders, Department of Respiratory Medicine, University of Thessaly, Larissa, Greece
| | - Zoe Daniil
- Laboratory of Cardio-Pulmonary Testing, Department of Respiratory Medicine, University of Thessaly, Larissa, Greece
| | - Konstantinos I Gourgoulianis
- Laboratory of Cardio-Pulmonary Testing, Department of Respiratory Medicine, University of Thessaly, Larissa, Greece; Laboratory of Sleep Disorders, Department of Respiratory Medicine, University of Thessaly, Larissa, Greece
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Oluwayelu DO, Omolanwa A, Adebiyi AI, Aiki-Raji OC. FLOCK-BASED SURVEILLANCE FOR LOW PATHOGENIC AVIAN INFLUENZA VIRUS IN COMMERCIAL BREEDERS AND LAYERS, SOUTHWEST NIGERIA. Afr J Infect Dis 2016. [PMID: 28337492 PMCID: PMC5349764 DOI: 10.21010/ajid.v11i1.5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background: Flock surveillance systems for avian influenza (AI) virus play a critical role in countries where vaccination is not practiced so as to establish the epidemiological characteristics of AI needed for the development of prevention and control strategies in such countries. Materials and Methods: As part of routine AI monitoring in southwest Nigeria, a competitive ELISA was used for detecting influenza A virus antibodies in the sera of 461 commercial breeder and layer birds obtained from different flocks in Oyo State, Nigeria while haemagglutination inhibiting antibodies against low pathogenic AI viruses (LPAIVs) were detected using H5N2, H7N7 and H9N2 subtype-specific antigens. Suspensions prepared from cloacal swabs were tested for AI virus RNA using reverse transcriptase-polymerase chain reaction. Results: Results showed that influenza A virus antibody prevalence was 12.8% and 9.3% for breeders and layers, respectively while HI assay revealed 22.0%, 2.0% and 78.0% prevalence of LPAIV H5N2, H7N7 and H9N2 antibodies respectively. All cloacal swab suspensions were negative for AIV RNA. Conclusion: Since LPAI infections result in decreased or complete cessation of egg production in breeder and layer birds, increased infection severity due to co-infection with other poultry viruses have occasionally been transmitted to humans, the detection of LPAIV H5N2, H7N7 and H9N2 antibodies in these birds is of both economic and public health significance. These findings underscore the need for continuous flock monitoring as part of early warning measure to facilitate rapid detection and sustainable control of AI in Nigerian poultry.
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Affiliation(s)
| | - Ayoyimika Omolanwa
- Department of Veterinary Microbiology and Parasitology, University of Ibadan, Ibadan, Nigeria
| | - Adebowale Idris Adebiyi
- Department of Veterinary Microbiology and Parasitology, University of Ibadan, Ibadan, Nigeria
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Oluwayelu DO, Omolanwa A, Adebiyi AI, Aiki-Raji OC. FLOCK-BASED SURVEILLANCE FOR LOW PATHOGENIC AVIAN INFLUENZA VIRUS IN COMMERCIAL BREEDERS AND LAYERS, SOUTHWEST NIGERIA. Afr J Infect Dis 2016; 11:44-49. [PMID: 28337492 DOI: 10.4314/ajid.v11i1.4538] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Flock surveillance systems for avian influenza (AI) virus play a critical role in countries where vaccination is not practiced so as to establish the epidemiological characteristics of AI needed for the development of prevention and control strategies in such countries. MATERIALS AND METHODS As part of routine AI monitoring in southwest Nigeria, a competitive ELISA was used for detecting influenza A virus antibodies in the sera of 461 commercial breeder and layer birds obtained from different flocks in Oyo State, Nigeria while haemagglutination inhibiting antibodies against low pathogenic AI viruses (LPAIVs) were detected using H5N2, H7N7 and H9N2 subtype-specific antigens. Suspensions prepared from cloacal swabs were tested for AI virus RNA using reverse transcriptase-polymerase chain reaction. RESULTS Results showed that influenza A virus antibody prevalence was 12.8% and 9.3% for breeders and layers, respectively while HI assay revealed 22.0%, 2.0% and 78.0% prevalence of LPAIV H5N2, H7N7 and H9N2 antibodies respectively. All cloacal swab suspensions were negative for AIV RNA. CONCLUSION Since LPAI infections result in decreased or complete cessation of egg production in breeder and layer birds, increased infection severity due to co-infection with other poultry viruses have occasionally been transmitted to humans, the detection of LPAIV H5N2, H7N7 and H9N2 antibodies in these birds is of both economic and public health significance. These findings underscore the need for continuous flock monitoring as part of early warning measure to facilitate rapid detection and sustainable control of AI in Nigerian poultry.
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Affiliation(s)
| | - Ayoyimika Omolanwa
- Department of Veterinary Microbiology and Parasitology, University of Ibadan, Ibadan, Nigeria
| | - Adebowale Idris Adebiyi
- Department of Veterinary Microbiology and Parasitology, University of Ibadan, Ibadan, Nigeria
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