MERYEM Khelfallah
خلف الله مريم
meryem.khelfallah@univ-msila.dz
0673325558
- Departement of Agricultural sciences
- Faculty of Sciences
- Grade PHd
About Me
Location
Msila, Msila
Msila, ALGERIA
Code RFIDE- 1995-10-15 00:00:00
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MERYEM Khelfallah birthday
- 2025-02-10
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2025-02-10
La 1 ère journée doctorale sur les sciences de la nature,de l'agriculture et de l'environnement (JDSNAE)
Sheep production and reproduction occupy an essential place in animal biology, as they have a direct influence on the sustainability of farms. Reproduction conditions the renewal of generations and the improvement of productive performance, particularly in terms of fecondity and viability of lambs. In this context, a study was carried out in the Mostaganem region. In April 2024, thirty healthy Rembi ewes with NEC (2.5-3) were divided into two groups of 15 ewes each: the first synchronized with vaginal sponges (20 mg) for 14 days, the second subjected to the same protocol with folic acid supplementation (150 mg/day/head). On the day of sponge removal, PMSG injections (500 units) were administered to both groups. Blood samples were taken from the jugular vein to assess plasma folate concentration using the chemiluminescence technique on the following days: D-21, D-15, D-8 and D0 (D0 corresponding to the day of mating). Gestation was monitored one month after mating to assess pregnancy rates. After statistical analysis, the results show an increase in B9 averages in parallel with supplementation for group G2:(D-20 =2.13 ± 0.12/ D-15 = 2.53 ± 0.12/ D-8 = 3.06 ± 0.19/D0 = 3.67 ± 0.17) ng/ml. On the other hand, more or less decreasing values were observed for the G1 group: (D-20 = 0.98 ± 0.11/ D-15 = 0.91 ± 0.10/ D-8 = 0.74 ± 0.08/D0 = 0.69 ± 0.08) ng/ml. Pregnancy rates were 100% for ewes in group G2, compared with 70% for those in group G1, suggesting a significant positive effect of folic acid supplementation. This supplementation helps to improve egg quality, increasing the chances of fertilization while reducing the risk of early embryonic loss. The incorporation of vitamin B9 into ewe feed is proving to be a key to optimizing the productivity of sheep farms by improving the reproductive performance of ewes.
Citation
Rihab Nadia SAHNOUNE , Samia HAFFAF , Meryem KHELFALLAH , ,(2025-02-10), La 1 ère journée doctorale sur les sciences de la nature,de l'agriculture et de l'environnement (JDSNAE),Study of fecondity improvement in ewes in semi-arid regions,Université Yahia Fares Médéa
- 2025-02-10
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2025-02-10
Physicochemical study of goat's milk from the Arbia breed: Perspectives for food safety
The purpose of the study was to explore physicochemical characteristics and quality of goat's milk from the arbia breed in the M'sila region. randomly selected, 57 samples of raw milk from arbia goats were collected and analyzed by lactoscan in the HODNA-LAIT laboratory. Means and standard deviations were calculated using Excel statistical software. The Arbia breed had an average production of 0.88 l\J ±0.56 , protein (2.96 ± 0.33 g/l) and lactose (4.07 ± 0.39 g/l). average density (1027.95± 2.43). Goats had an average salt content (1.44 g/l ± 2.24). fat content (4.55± 1.23 g/l). Although the feed rations were similar, physico-chemical analysis has enabled a better understanding of goat milk content, milk production potential, quality characteristics and potential health benefits. It can help the dairy industry, researchers and consumers to make informed decisions on goat milk consumption, product development and for food safety, enhancing the nutritional value of dairy products consumed by the public.
Citation
Meryem KHELFALLAH , ,(2025-02-10), Physicochemical study of goat's milk from the Arbia breed: Perspectives for food safety,La 1ère Journée Doctorale sur : Les Sciences de la Nature, de l’Agriculture et de l’Environnement JDSNAE 2025,médéa
- 2024-04-19
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2024-04-19
comparative nutritional benefits of goat's milk: an analyse for it's lactose,fat;and protein contenet
The current study's objectives were to compare the physicochemical properties and nutritional value of goat milk by breed in M'sila region.The whole study extended from April to June 2023. 78 samples of raw milk from various goat breeds were gathered and subjected to lactoscan analysis in HODNA-LAIT laboratories after seven goat herds from the M'sila region were chosen at random. Arbia goats (n=55) dominated, followed by Hidjazi goats (n=10), then crossbred populations (n=6), then Shami goats (n=5) and finally only one Alpine goat and one Saanen goat.Statistical processing was carried out using Excel to obtain means and standard deviations. According to the results obtained for the "breed" factor, the Arbia breed (n=55) expressed the best mean values for protein (2.95 ± 0.31 g/l) and lactose (4.11 ± 0.37 g/l). Hidjazi goats (n=10) had the best mean density(1027.78 ± 2.28). Shami goats (n=5) had the best average for salts (6.66 g/l ± 3.35). An Alpine goat had the highest fat value (9.31 g/l). According to this study, although variability in milk composition was observed between breeds, even though the feed rations were quite comparable.Additionally, milk from the native Arbia goat breed offers significant physico-chemical qualities and a number of benefits that it could be provided as a substitute to improve human health, particularly in the nation's poorest areas where there aren't enough reconstituted milk production units.also it has characteristics that make it appropriate for large-scale sales through dairies and supermarkets, as well as for home consumption, or small-scale cheese-making or industrial processing, to make up for the country's lack of cheese products.
Citation
Meryem KHELFALLAH , ADEL Mammeri , zeroukhi ammar, mahadi moncif, ,(2024-04-19), comparative nutritional benefits of goat's milk: an analyse for it's lactose,fat;and protein contenet,The 5 th edition of the National Congress on Agro- food, Nutrition, and Sustainable Development. (JAGRO 5-2024),blida
- 2023-12-17
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2023-12-17
Nutritional virtues of goat's milk from different breeds in Msila region: an alternative solution for safeguarding human health in Algeria
The aim of the present study was to investigate the physicochemical characteristics and nutritional value of goat's milk and to compare them by breed in M'sila region.The whole study extended from April to June 2023.To this end, seven goat herds from M'sila region were randomly selected, then 78 samples of raw milk from different goat breeds were collected and analysed by lactoscan, in HODNA-LAIT laboratories. Arbia goats (n=55) dominated, followed by Hidjazi goats (n=10), then crossbred populations (n=6), then Shami goats (n=5) and finally only one Alpine goat and one Saanen goat.Statistical processing was carried out using Excel to obtain means and standard deviations. According to the results obtained for the "breed" factor, the Arbia breed (n=55) expressed the best mean values for protein (2.95 ± 0.31 g/l) and lactose (4.11 ± 0.37 g/l). Hidjazi goats (n=10) had the best mean density(1027.78 ± 2.28). Shami goats (n=5) had the best average for salts (6.66 g/l ± 3.35). An Alpine goat had the highest fat value (9.31 g/l). According to this study, although variability in milk composition was observed between breeds, despite the fact that feed rations were very similar.Milk from the local Arbia goat breed also has important physico- chemical properties and several advantages that make it suitable for small-scale cheese-making or industrial processing, to make up for the national shortage of cheese products, or large-scale sale through dairies and supermarkets, also for home consumption. Goat's milk could therefore be offered as an alternative to promote human health, especially in the most disadvantaged regions of the country where reconstituted milk production units are lacking
Citation
Meryem KHELFALLAH , ADEL Mammeri , zeroukhi ammar, mahadi moncif, ,(2023-12-17), Nutritional virtues of goat's milk from different breeds in Msila region: an alternative solution for safeguarding human health in Algeria,Applied Research in Food Sciences, Health and Environment (1st IS-ARFSHE 23) December, 17-18th 2023 st IS-ARFSHE,annaba
- 2023-11-22
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2023-11-22
Comparative study of the physicochemical characteristics of goat's milk from various breeds in M'sila region and its suitability for cheese-making
The aim of this study was to investigate the physico-chemical characteristics of goat's milk and to compare them according to the breed in the M'sila region. To this end, 78 samples of raw milk were taken from several goat farms and analysed by Lactoscan. Statistical processing was carried out using Excel to obtain the means and standard deviations. According to the results obtained for the "breed" factor, the Arbia breed (n=55) expressed the best mean values for protein (2.95 ± 0.31 g/l) and lactose (4.11 ± 0.37 g/l). The Hidjazi goats (n=10) had the best average density (1027.78 ± 2.28). Shami goats (n=5) showed the best average for salts (6.66 g/l ± 3.35). An Alpine goat had the highest fat value (9.31 g/l). According to this study, milk from the local Arbia goat breed has important physico-chemical properties and several advantages that make it suitable for small-scale cheese-making or industrial processing, in order to make up for the national shortage of cheese products.
Citation
Meryem KHELFALLAH , ADEL Mammeri , Zerroukhi Ammar, Mahdi Monsif, ,(2023-11-22), Comparative study of the physicochemical characteristics of goat's milk from various breeds in M'sila region and its suitability for cheese-making,ISCANIM 2023,CRAPC Bejaia