Prof. Dr. Nora MIMOUNE - Academia.edu (original) (raw)

Papers by Prof. Dr. Nora MIMOUNE

Veterinarska Stanica, Oct 1, 2023

Caseous lymphadenitis, also called abscess disease, is an infectious, cosmopolitan disease. The c... more Caseous lymphadenitis, also called abscess disease, is an infectious, cosmopolitan disease. The causative agent is a Gram-positive bacillus, Corynebacterium pseudotuberculosis that is resistant to antibiotic treatment. Humans become infected with this bacillus, but the disease is considered a neglected zoonosis. The objective of this study was to estimate the prevalence and to identify Corynebacterium pseudotuberculosis in sheep slaughtered in central Algeria. For this purpose, 897 animals were examined and samples (pus) were taken from 12 sheep with abscesses to perform bacteriological study. Sex, age, and location of the abscess were noted. The results obtained showed an overall prevalence of 1.33%. The highest rate (50%) was observed in animals aged between 8 months and 1 year. Males were more affected by abscesses (66.7%) than females (33.3%). As for localisation, 41% of abscesses were found in the pulmonary lymph nodes and 25% in the submandibular region. Infection by Corynebacterium was estimated at a rate of 25%, lower than that obtained for Staphylococcus (41.7%). Regarding the zoonotic nature of the disease, the bacteria's ability to survive in the external environment, and the high risk of contamination, management measures should be implemented for better disease control and prevention.

Veterinarska stanica, Feb 12, 2024

In this study, a database was created by monitoring 3000 Ouled Djellal ewes, belonging to ten bre... more In this study, a database was created by monitoring 3000 Ouled Djellal ewes, belonging to ten breeding farms and representing two modes of reproduction management. The data collected make it possible to measure the reproductive performance of females and to determine the influence of non-genetic factors on different parameters. The Body Condition Score (BCS) was calculated to compare performance in relation with breeding conditions. The results showed that fertility and prolificacy accounted for 91.1±0.1% and 116.4±0.2% in the reproduction mode respectively based on one lambing/year with exclusive spring control, and of 53.5±0.2% and 101.2±0.1% respectively in the traditional lambing system spread over the year (with the ram permanently present in the flock) (P<0.05). The BCS varied according to mating season and feeding system. Indeed, as the BCS at mating increased, fertility, prolificacy and productivity improved. Ewes whose BCS at mating was equal to or greater than 3 obtained the best performance, while those with a lower BCS were less fertile, less prolific, and less productive. The average productivity of Ouled Djellal sheep was 107.0±0.1%, and 54.8±0.3%, respectively, in the first and second mode of reproduction management (P<0.05). This study highlights the main sources of variations and their interactions.

Veterinarska stanica, Feb 13, 2024

This study was carried out to determine the impact of the mode of reproduction and the strain (ma... more This study was carried out to determine the impact of the mode of reproduction and the strain (male and female) of rabbits on some zootechnical and reproduction parameters. For that, monitoring was carried out in 2019 in the region of Setif (North Eastern Algeria) on a semi-intensive breeding of 25 crossbreed rabbits. The statistical analysis showed a very highly significant effect of the mode of reproduction on the number of mating per fertilizing mating (P= 0.0001) with an average of 1 ± 0 in AI (Fertility rate of 80%), while it was of 1.45 ± 0.51 in natural breeding with a fertility rate of 61%. The weight of the rabbits at weaning was higher in AI than in natural mating (587.25 ± 338.19 g vs. 575.0 ± 375.44 g, respectively). The results relating to the number of total born, born alive, weaned rabbits, the farrowing-mating interval and the farrow-ing-fertilizing mating interval in natural mode were respectively of (7.4 ± 3.12), (4.55 ± 3.12), (4.55 ± 3.12), (12.65 ± 2.30), (19.15 ± 3.58); and in AI: (6.90 ± 4.12), (5.75 ± 4 .12), (5.75 ± 4.12), (11.65 ± 2.05), (18.99 ± 3.2) (P>0.05). Furthermore, and regarding the strains, data revealed that the females did not have any significant effect on the variables studied. On the contrary, the male had a very highly significant effect on the number of mating per fertilizing mating (p = 0.000), while it had no impact on the other parameters (P>0.05). To conclude, the control and the management of reproduction is the key to success in rabbit breeding, thus the combination of rearing condition and genetic effects is the main tool for making rabbit farming successful.

Veterinarska Stanica, Aug 20, 2023

3-dimensional printing, which appeared in the 1980s and has been constantly evolving since, is an... more 3-dimensional printing, which appeared in the 1980s and has been constantly evolving since, is an innovative and very promising technology. It is a tool with wide-reaching applications in the field of osteology and anatomy and also in the world of education. Thanks to its qualities, it is possible to print entire anatomical parts in numerous copies. This experimental study examined the dimensions of 3-dimensional printing of the right femur of a sheep in comparison with its digital and printed models. A 3D scanner was used to design the digital model and a 3D printer to produce the scanned bone using polyamide (PA12) as the material. Nearly all the original anatomical features of biological bone were well resolved, except for the depth of the nourishing foramen. The measured dimensions of the 3D printed model and the digital model were compared to those of the original biological specimen, and showed no significant difference. Regarding the results obtained and the slight error of 1 mm, 3D printed models can be used as an aid in anatomy lessons and can serve as reliable alternatives to classical anatomical parts in the study of the veterinary anatomy. To the extent of our knowledge, this is the study on the use of 3-dimensional printing in veterinary medicine in Algeria.

Veterinarska stanica, Jun 19, 2024

Our study aimed to investigate the prevalence of caprine brucellosis and identify factors influen... more Our study aimed to investigate the prevalence of caprine brucellosis and identify factors influencing its persistence in Algeria. Over the span of a decade, from 2009 to 2018, a sero-epidemiological survey was undertaken, covering a significant population of 51,475 goats. The screening process involved the use of the card agglutination test to detect potential positive samples. Subsequently, positive samples were subjected to confirmation using the complement fixation test. The study revealed an average seropositivity prevalence of 14.7% over the ten-year duration. A significant difference (P<0.05) was observed between Southern and Northern provinces, registering respective rates of 20.2% and 6.9%. Furthermore , a pronounced effect of gender was evident (P<0.05), with females exhibiting a higher infection prevalence (15.6%) compared to males (7.1%). Similarly, a significant difference was observed concerning the age of animals, with aged individuals showing a prevalence of 15.8% in contrast to young animals at 8.5%. In our current investigation, we observed the persistence of caprine brucellosis across various provinces in Algeria. Consequently, there is a pressing need to establish and execute a comprehensive strategy aimed at combating and preventing this infection.

Kafkas üniversitesi veteriner fakültesi dergisi/Kafkas üniversitesi veteriner fakültesi dergisi, 2024

This article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International Lic... more This article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0)

Kafkas üniversitesi veteriner fakültesi dergisi/Kafkas üniversitesi veteriner fakültesi dergisi, 2024

Veterinarska Stanica, Oct 2, 2023

Dairy cow feeding plays an important role in milk production. The present study was conducted to ... more Dairy cow feeding plays an important role in milk production. The present study was conducted to evaluate the effect of a feed additive (association of acidifier and mycotoxin binder) on milk production in dairy cattle. For this purpose, 22 cows belonging to three breeds (Montbeliard, Holstein, and Flekveih) were used. The cows were divided into two groups; a control group with seven cows and an experimental group with 15 animals. The results showed that the additive had a positive effect on milk production (23.14±5.87 litres for the experimental group vs 18.00±6.90 litres for the control). The additive also had a good effect on the percentage of sub-clinical mastitis: the Californian Mastitis Test (CMT) carried out at monthly intervals showed a clear improvement in the udder health of females in the experiment with 13 positive samples in the first test for nine cows (with four affected teats) and 10 positive samples for the second test in three cows (with three affected teats). Moreover, statistical tests revealed a significant difference in the mean fat content (35 g/L vs 23.86 g/L, respectively) while the average Faeces Consistency Score and Dornic acidity was lower in the experimental group compared to the control (2.23 vs 3.21 and 13.83 vs 16.14, respectively). These results show the importance of incorporating the feed additive into the diet of dairy cows and the need to implement an extension programme and zootechnical supervision of all actors in the sector to ensure the quality of milk production and the performance of dairy cows.

Journal of Siberian Medical Sciences

Introduction. Ovarian tumors (OT) are the leading cause of death from gynecological cancer. Aim. ... more Introduction. Ovarian tumors (OT) are the leading cause of death from gynecological cancer. Aim. Studying of epidemiological, histopathological, and immunohistochemical profile of OT in the North-Central region of Algeria. Materials and methods. An epidemiological and histopathological analysis of OT that were diagnosed over a period of 32 months from January 2018 to August 2020 in Algiers was carried out. It grouped all the histologically confirmed cases in the Pathological Anatomy and Cytology Department of the Hussein Dey Hospital during the study period. Through this work, we collected 110 cases of OT. Among this total, 26 cases (23.63%) were represented by functional cysts and 7 cases (6.36%) by borderline epithelial tumors excluded from our work. Only OT (benign and malignant) were studied. On the epidemiological level, we were interested in the age factors and distribution by year of study, and on the anatomopathological level, we dealt with the topography, macroscopic and hi...

Veterinary World, Feb 24, 2023

Background and Aim: An ethnobotanical survey was carried out among the inhabitants of the Aflou r... more Background and Aim: An ethnobotanical survey was carried out among the inhabitants of the Aflou region of Laghouat (Southern Algeria). This study was considered as a first step toward the identification of new bioactive antiparasitic molecules. The preservation and documentation of this traditional knowledge will ensure its continuity and transmission from one generation to another, especially because of the emergence of resistant parasites and the lack of references caused by the lack of work in this area; therefore, we intended to inventory and collect the maximum amount of information on medicinal plants that are traditionally used by the local population as antiparasitic in humans and animals (small ruminants, cattle, and livestock).

Materials and Methods: The information was collected using open interviews; the ethnobotanical survey was carried out in the area mentioned above from April to July 2021 using a semi-structured questionnaire and a global sample of 200 respondents. The data were analyzed using the System Package for the Social Sciences software and Microsoft Excel 2010 using the following quantitative indices: Relative frequency of citation (RFC), family importance value (FIV), fidelity level, and informant consensus factor (ICF).

Results: The investigation uncovered the antiparasitic use of 58 plant species belonging to 30 families. The family Asteraceae had the highest FIV (FIV = 0.23). The pathology with the highest degree of agreement among the informants was genitourinary parasitosis (ICF = 0.930). The species that was most commonly cited by the local population was Artemisia herba-alba Asso (RFC = 1), and the foliage was the most commonly used part (46.4%). Infusion (38.8%) was the most-used preparation for remedies.

Conclusion: This investigation revealed a rich ethnopharmacological knowledge in southern Algeria; therefore, the data gathered in this survey may be utilized to create novel antiparasitic compounds with activity in humans and animals.

Trypanosomosis serves as an important constraint to camel production because it substantially red... more Trypanosomosis serves as an important constraint to camel production because it substantially reduces animal productivity, thus inducing economic losses. It is a major endemic disease problem throughout Central and South America, Africa and Asia (Gutierrez et al. 2000). Infection with T. brucei evansi (hereafter, T. evansi) reduces market value of exported animals, decreases milk yield and lessens animal body condition score, resulting in more than $223 million loss to the camel industry (Salah, Robertson & Mohamed 2015). In addition to causing the aforementioned losses, T. evansi is the most important cause of infectious abortions in camels in the Middle East and Africa (Boushaki et al. 2019; More et al. 2017). Camels with clinical disease can present progressive emaciation, severe anaemia, reproductive problems (because of infertility, abortions and stillbirths), and eventually death (Desquesnes et al. 2013). In Algeria, T. evansi was first detected in 1903 in infected camels (Sergent & Sergent 1905). Since that time, few studies have been performed on livestock, and most were conducted in a Surra, caused by Trypanosoma evansi, is a re-emerging animal trypanosomosis, which is of special concern for camel-rearing regions of Africa and Asia. Surra decreases milk yield, lessens animal body condition score and reduces market value of exported animals resulting in substantial economic losses. A cross-sectional seroprevalence study of dromedary camels was conducted in Algeria, and major risk factors associated with infection were identified by collecting data on animal characteristics and herd management practices. The seroprevalence of T. evansi infection was determined in sera of 865 camels from 82 herds located in eastern Algeria using an antibody test (card agglutination test for Trypanosomiasis-CATT/T. evansi). Individual and herd seroprevalence were 49.5% and 73.2%, respectively, indicating substantial exposure of camels to T. evansi in the four districts studied. Five significant risk factors for T. evansi hemoparasite infection were identified: geographical area, herd size, husbandry system, accessibility to natural water sources and type of watering. There was no association between breed, sex or age with T. evansi infection. Results of this study provide baseline information that will be useful for launching control programmes in the region and potentially elsewhere.

This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

Kafkas Universitesi Veteriner Fakultesi Dergisi

The aim of this study is to evaluate the sensitivity of germs isolated from mastitis towards diff... more The aim of this study is to evaluate the sensitivity of germs isolated from mastitis towards different antibiotics.The work carried out on several cattle herds in the South region of Algeria. A total of 80bacterial strains were isolated to be the subject of a disk-diffusion agar antibiotic sensitivitytest,the bacterial strains were under the groups of Staphylococcus coagulase positive SCP (10), Staphylococcus coagulase negative SCN (35) andEnterobacteriaceae (35).Twenty-one antibiotic's effectiveness were put to the test. The results showed that 100% of the SCP strains were resistant to Penicillin G, while the SCN strains were less resistant to it with a resistance rate of71.42%. SCN strains' resistance was high towards oxacillin (68.57%), erythromycin (54.28%), clindamycin (54.28%), and for vancomycin (51.42%). However,no resistance was recorded against gentamycin. Enterobacteriaceae strains had a high resistance against the combination: Amoxicillin + clavulanate(74.28%). On light of the results, the following antibiotics:Gentamicin, the combination Trimethoprim-sulfamethoxazole and enrofloxacin tend to be the best antibiotics to fight against mastitis in the center region of Algeria. It must be noted that while being very effective, it's not recommended to use Gentamicin, because it is not that available in our region and is very costly; on the other hand we recommend the use of Sulfamides due to their availability in the Algerian market and being cheaper.

DOAJ (DOAJ: Directory of Open Access Journals), Dec 1, 2020

Clay is one of many other additives proposed as substitutes to optimize avian performances. This ... more Clay is one of many other additives proposed as substitutes to optimize avian performances. This study was carried out to evaluate the effect of bentonite sodium (BS) from the Maghnia field on the zootechnical performances of the broiler chicken. For that, 490 Harbord broiler chicks were distributed into 7 lots, each comprising 70 subjects. We prepared a control lot (T) with a standard corn feed and lots 1, 2, 3, 4, 5 added 1%, 2%, 3%, 4%, 5% bentonite by corn substitution, respectively. Zootechnical performances (weight gain WG, consumption index CI) were calculated every 5 days. Our results showed a significant improvement in WG and CI of bentonite-added chickens compared to the control lot. However, in the start-up/ growth phase, there was performance degradation in chickens with 5% BS, which would mean that although BS was beneficial, chicken did not tolerate high levels of BS during young age. In addition to improving performances, BS offered a very large savings in corn (up to 5 kg/100 kg of food). Since BS is a plentiful natural product, it reduces production costs and improves performances of the broiler.

Livestock research for rural development, 2017

The objective of this study was to evaluate a test for the rapid diagnosis of mastitis in cattle ... more The objective of this study was to evaluate a test for the rapid diagnosis of mastitis in cattle farms in the central region of Algeria. The study was conducted on 100 lactating cows belonging to 15 farms. The test evaluated was the speed® mam color. These cows were screened for mastitis by the California Mastitis Test (CMT).The positive samples at the CMT were subjected to a bacteriological analysis, to identify the pathogenic germs. The classic bacteriological analysis and the Speed® Mam Color were used for the identification of pathogenic bacteria responsible for bovine mastitis and the achievement of a rapid antibiogram.With CMT, the prevalence of subclinical mastitis was evaluated at 25% of cows tested and bacteriological culture using a rapid test: speed® mam color was positive in 96% [24/25] of cows positive at WCL. However, classical bacteriological analysis of CMT-positive samples showed a positivity of 100% [25/25]. This result showed a very good correlation [96%] between rapid test results and conventional bacteriological analysis and therefore a good reliability of the rapid test used for the identification of intra-mammary infections. Thus, the Speed® Mam Color seems to be an advantageous tool to develop, in small or large scale, for a rapid diagnosis, systematic and regular in an integrated program of the fight against mastitis.

Veterinarska Stanica, Oct 1, 2023

Veterinarska stanica, Feb 12, 2024

Veterinarska stanica, Feb 13, 2024

Veterinarska Stanica, Aug 20, 2023

Veterinarska stanica, Jun 19, 2024

Kafkas üniversitesi veteriner fakültesi dergisi/Kafkas üniversitesi veteriner fakültesi dergisi, 2024

Veterinarska Stanica, Oct 2, 2023

Journal of Siberian Medical Sciences

Veterinary World, Feb 24, 2023

Kafkas Universitesi Veteriner Fakultesi Dergisi

DOAJ (DOAJ: Directory of Open Access Journals), Dec 1, 2020

Livestock research for rural development, 2017