ABDELHAMID Baa

BECHELALEG Fatiha , DJENAOUI Roufida

Effet de la ration sur la qualité du lait de chèvre dans la région de M’Sila

The productivity, health, and meat quality of broiler chickens are all directly impacted by their welfare. This study aimed to assess the welfare of these animals. It was conducted on several farms in the M'Sila region of Algeria. The methodology adopted is that of the Welfare Quality® protocol (2009): a questionnaire, observations, and handling of the animals were carried out in 19 farms in the high-potential poultry farming area of the wilaya of M'Sila, comprising 71 standard buildings used for broiler chicken farming. The indicators studied relate to good housing (cleanliness of plumage, litter quality, dust test, thermal comfort, and density), good health (plantar pad dermatitis, hock burns), and human-animal interaction (touch test). The results revealed that 63% of the buildings were traditional, with 78.9% of farmers using the Cobb 500 strain. The quality of the litter in the buildings was acceptable (nearly 60% of cases received a score of 1), meaning that it was dry and difficult to move. The average feather cleanliness index was 99.51%. Low stocking density (13.94 ± 8.75 birds per square meter) and low dust levels were observed in all buildings. Grade 1 or 2 skin lesions were observed on the footpads of all subjects in 20% of the buildings, with no grade 3 or 4 lesions observed. Burns on the hocks were either absent (score 0) or minimal (score 1 or 2) in 76% of the buildings. Overall, it can therefore be concluded that the welfare of broiler chickens on the farms visited was satisfactory.

Citation

ABDELHAMID Baa , Yamouna BARA , , (2026-01-01), Application of the Welfare Quality® Protocol in Semi-arid Broiler Production Systems., Journal of Applied Veterinary Sciences, Vol:11, Issue:1, pages:76 – 85, Egyptian Society for Animal Management

Dromedary camels Camelus dromedarius Linnaeus (Artiodactyla, Camelidae) are vital to the livelihoods of nomadic and pastoralist communities in the Sahara Desert. However, they are susceptible to ectoparasites, which can significantly impact their health and productivity, as well as their potential role in transmitting zoonotic diseases. This study aimed to investigate the prevalence, species composition and infestation levels of ectoparasites in dromedaries from different camel herds (CH) across northern Algeria's Sahara Desert. Additionally, we assessed the effects of CH and camel age and sex on parasite loads and infestation patterns regarding the host's affected body region. A total of 68 camels out of 135, randomly selected from four herds CH1–CH4, were surveyed for ectoparasites. Ectoparasites were counted, collected and identified in the laboratory. Pearson correlation tests were employed to analyse the relationship between parasite indices. Similarity analysis was conducted to compare ectoparasite species composition among the sampled CH. The overall infestation level of ectoparasites across the CH was 61.76% with 511 ectoparasite individuals identified. Significant regional variation in tick prevalence was observed: CH1 (88.24%), CH2 (64.71%), CH3 (58.82%) and CH4 (35.29%) (p < 0.001). The most prevalent ectoparasites were ticks, with four species identified: Hyalomma dromedarii Koch (Ixodida, Ixodidae) (45.21%), Hyalomma marginatum marginatum Koch (Ixodida, Ixodidae) (18%), Rhipicephalus sanguineus sensu lato Latreille (Ixodida, Ixodidae) (7.63%) and Ixodes ricinus Linnaeus (Ixodida, Ixodidae) (4.9%). In addition, one mite species Sarcoptes scabiei Linnaeus (Sarcoptiformes, Sarcoptidae), one flea species Ctenocephalides arabicus Jordan (Siphonaptera, Pulicidae) and one fly species Wohlfahrtia magnifica Schiner (Diptera, Sarcophagidae) were identified. Similarity analysis showed a 70% overlap in ectoparasite species composition between herds, suggesting common environmental and management-related risk factors. Overall, the abdomen exhibited the highest percentage of ectoparasites at 22.7%, followed by the neck and sternum (17.8%), and the anal and tail area (17.4%). Adults accounted for 86.1% of infestations, with notable contributions from the abdomen (17.0%) and neck/sternum (15.9%), while young camels made up only 13.9%. The high ectoparasite infestation level, particularly ticks, underscores the need for a comprehensive control plan, especially in herds managed under extensive or nomadic systems. Future research should focus on identifying risk factors and exploring ectoparasite control strategies to reduce the burden on camel health and prevent potential zoonotic disease transmission in the region.

Citation

ABDELHAMID Baa , , (2025-10-15), Epidemiological assessment of ectoparasite prevalence in the dromedary camel (Camelus dromedarius) in the Sahara Desert, Medical and Veterinary Entomology, Vol:37, Issue:3, pages:1-17, Wiley-Blackwell Publishing Ltd

This study aims to classify broiler chicken farms in M’Sila (Algeria) using survey data collected between 2022 and 2023. The sample comprises 83 farms, 125 buildings, and 321,500 chickens. Growth parameters were initially calculated, and the statistical results revealed an overall mortality rate of 4.24%, a feed conversion ratio of 2.18, and a production index of 209.15. PCA analysis classified the farms into four categories. Large farms (class 4) were found to be the most profitable, with a gross margin of 138.42 DZD/kg, compared to 105.07, 97.09, and 64.00 DZD/kg for classes 1, 2, and 3, respectively (p = 0.003). This is due to better feed conversion ratios (1.97; p = 0.000), a higher number of chicks per flock (13,250; p = 0.000), and lower production costs (111.57 DZD/kg versus 135.82, 148.35, and 210.93 DZD/kg for classes 1, 2, and 3, respectively).

Citation

ABDELHAMID Baa , Yamouna BARA , , (2025-07-05), Typology of Broiler Farms in M’Sila Region (Algeria): Zootechnical-Economic Performance., Advances in Animal and Veterinary Sciences, Vol:13, Issue:8, pages:1681-1688, ResearchersLinks Ltd

Description du sujet. L'utilisation de sous-produits tels que le lactosérum et les déchets de dattes dans l'alimentation animale peut réduire les coûts de production sans affecter les performances du bétail. Objectifs. Ce travail vise à étudier les effets de l’incorporation de deux sous-produits agro-industriels, les rebuts de dattes et le lactosérum, sur les performances d’engraissement des agneaux de race Rembi. Méthode. Vingt-deux agneaux mâles de la race Rembi, pesant en moyenne 49,08 ± 7,19 kg, ont été répartis en deux groupes : le groupe témoin a reçu une alimentation avec 60 % d'orge, tandis que dans le groupe expérimental, l'orge a été remplacée par des rebuts de dattes broyées. Le concentré expérimental a été humidifié avec du lactosérum à raison de 150 ml·kg-1 avant d'être distribué. L'engraissement a duré 75 jours, avec une période d'adaptation de 15 jours. Résultats. Il en résulte que la ration composée de rebuts de dattes et de lactosérum n’a aucun effet sur le poids vif final des agneaux, cependant elle a influé positivement le gain moyen quotidien (GMQ) avec une différence significative pour le GMQ2 (136,36 g·j-1 pour le lot témoin vs 272,72 g·j-1 pour le lot expérimental). De plus, l’ingéré alimentaire quotidien total a diminué dans le lot expérimental (860 g·j-1 vs 1 450 g·j-1 pour le lot témoin). Conclusions. L'incorporation des rebuts de dattes et de lactosérum dans l'alimentation des agneaux Rembi réduit les coûts de production et préserve l'environnement.

Citation

ABDELHAMID Baa , , (2025-07-02), Effets d’incorporation des rebuts de dattes et du lactosérum sur les performances de croissance et l’évolution corporelle des agneaux Rembi (Algérie)., Biotechnol. Agron. Soc. Environ., Vol:29, Issue:3, pages:172-180, FAC UNIV SCIENCES AGRONOMIQUES GEMBLOUX

La protection contre toutes les agressions permet de garantir les cinq libertés des animaux : physiologiques, environnementale, comportementale, sanitaire et psychologiques. Le bien-être animal est un sujet complexe aux aspects multiples aux dimensions scientifiques, éthiques, économiques, culturelles et sociales.

Citation

ABDELHAMIDBaa , ,(2025-03-01); Bien Être Animal Et Traçabilité,,Collection Scientifique de la Faculté des Sciences

Le but de ce travail est le recensement de l’utilisation de sources alimentaires locales (matières premières ou sous-produits) non conventionnelles, par les éleveurs avicoles de chair de la région Est-Algérien. La procédure a consisté à travers des sorties programmées au cours de la période de12 février jusqu’au mois de juin 2024 à la réalisation de questionnaires d’enquête auprès de 26 exploitations.

Citation

ABDELHAMID Baa , ,(2024-10-23), Sources alimentaires locales et sous-produits agro-industriels pour poulet de chair dans l’Est-Algérien,Agri-food Co-products: Valorization for Sustainable Development (ACVSD 1),Université de Blida 1

The aim of this study was to determine the effect on the production performances and carcass characteristics of local broiler chickens of replacing corn with cull dates from agri-food industries in oasis zones and of complementing this with rumen content extract from sheep abattoirs in the chickens’ feed rations. A total of 200 male and female day-old chicks of local stock, with an average weight of 25±2g, were divided randomly into 4 groups of 50 individuals, each group distinguished by the respective rate of substitution of corn by cull dates (0%, 20%, 30% and 40%) for a period of 48 days. Each group was divided into ten (10) cages of 5 subjects. The live weights after 48 days improved for all experimental groups, recording an increase of +162g (20%); +82g (30%) and +31g (40%). All of the characteristics remained unchanged for all groups with the exception of liver weight, which was lower in the experimental groups. Substituting until 40% of the corn by culls dates while adding 250 ml rumen content extract per kilogram of broiler feed increased the live weight and average daily gain compared to the control.

Citation

ABDELHAMID Baa , Yamouna BARA , , (2021-12-13), Date Scraps and Rumen Content Extract in Broiler Feed: Effects on Growth Performances, Carcass Yields, Meat Quality and Economic Efficiency., ADVANCED RESEARCH IN LIFE SCIENCES, Vol:5, Issue:, pages:55-63, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania

This study is based on the microbiological analysis of a common slaughterhouse by-product which is the rumen content, before and after treatment with HCl 1N, targeting its valorization in domestic animal feeding. A total of 24 rumen content samples were collected in pairs (two series) immediately after slaughter from 12 ruminants (cattle, sheep and goats). The first series was not treated with HCl (N0 = 12), while the second series was treated with HCl 1N (N1 = 12) to adjust its pH to about 2. Then all samples (series 1 and 2) were subject to a group of microbiological analyzes targeting identification and enumeration of total aerobic mesophilic flora; fecal and total coliforms; Clostridium perfringens; Staphylococcus aureus; Salmonella spp. as well as yeasts and molds. The results revealed that after lowering the pH to about 2, the 2nd series samples were considered of satisfactory quality, with reference to Algerian microbiological standards for livestock feeds. The reduction rates of germs in the 2nd series compared to the 1st series were as follows: total aerobic mesophilic flora (86.45%), total coliforms (96.43%), faecal coliforms (70.41). %), Clostridium perfringens (88.4%), yeast and mold (87.75%). The total absence of Staphylococcus aureus and Salmonella spp. was registered.

Citation

ABDELHAMID Baa , Yamouna BARA , , (2021-11-15), Modification of microbiological quality and valorization of different ruminants’ species ruminal content in farm animals feeding., . Bulletin of University of Agriculture Sciences and Veterinary Medicine Cluj- Napoca. Animal sciences and Biotechnologies, Vol:78, Issue:2, pages:37-45, Adriana Cristina URCAN