Background: This study aims to determine the effects of supplementary diets with date waste and Saccharomyces cerevisiae on biochemical parameters in Ouled Djellel ewes at early and late lactation. Methods: Thirty pregnant ewes, were divided into 5 groups. All ewes received wheat straw (1Kg),in addition to wheat straw, the control group (33CON) received 500 g of concentrate. The other groups (8.33REB,25REB, 16REB,16REBsc) were fed with a mixture of date waste and concentrate in different proportions,and Saccharomyces cerevisiae at a rate of 2 gr/ewe for the 5th group. Blood samples were collected at the beginning and at the end of lactation to determine biochemical profile by spectrophotometry.Feed analyses were performed according to AOAC standards. Results: Ewes fed the 8.33REB, 25REB, 16.6REB, 16.6REBsc rations had lower serum levels for the majority of biochemical parameters compared to the 33CON control group.The results indicated that serum glucose, aspartate aminotransferase and urea decreased slightly in the groups supplemented with date waste and Saccharomyces cervicea (Pand lt;0.05) whereas,albumin and cholesterol were marginally significant.Therefore, date waste could be distributed, partially to ewes as an alternative to concentrate.

Background: In Algeria, COVID-19 containment procedures 2020-2021 have put the livestock sector in a critical situation, particularly in the Saharan regions where animal feed is based on supplies from other regions. Indeed, a famine has threatened the herds, but the breeders have been able to save their animals by an unconventional diet. The knowledge of these nutritional measures and know-how makes it possibleto evaluate local products andto guide Algerian decision-makers towards a safer food strategy that is well adapted to the Sahara region. Methods: We used the “12MO method”, which is a retrospective survey based on the declarations of the breeders for the last twelve months. 12MO served as a basic tool for a systemic analysis conducted in 110 farms in different areas of Oued Souf (Sahara of Algeria). Result: The results highlighted changes in animal feed, under the impact of COVID-19 pandemic through unconventional feeding. 6 feeds were distinguished, including 4 crop residues (PoCR; PeCR; CCR ; TCR) and 2 by-products (PD By-P; PD By-P). During a year of containment, it was not only the interrelationship (agriculture/livestock) that has secured the feeding herds in the Saharan environment, but the breeder’s solidarity has significantly contributed in that also.

The goal of this study was to determine the seasonal and age effects on male camels’ intake. Over the two seasons (wet and dry season), follow-ups were conducted at El Alia Rangelands (southeast of Algeria). Eight males were selected to measure bite counts and dry matter intake (DMI) per season; they were distributed into two groups, adult males (AM) and young males (YM). The results showed that there was a significant difference (p < 0.05) in the number of bites according to the season and the age categories, with a maximum average of 80.33 ± 18.206 for AM in the dry season and a minimum average of 15.50 ± 9.955 for YM in the wet season. During the wet season, Traganum nudatum had the highest dry matter intake (DMI), with 2.01 kg DM for AM and 0.28 kg DM for YM, while Salsola longifolia and Salsola tetragona had the lowest, with 0.38 and 0.39 kg DM, respectively, during the dry season in YM. Limoniastrum guyonianum exhibited high amounts of dry matter intake (DMI) in the dry season, with 1.10 and 0.22 kg DM in AM and YM, respectively, but significantly decreased in AM and YM during the wet season (0.03 and 0.02 kg DM respectively). The season influences the feed intake of male camels, of course.

In Algeria, with the expansion of intensive poultry farming, assessing animal welfare has become increasingly important. Our study evaluated the welfare of broiler chickens at the Tazoult poultry center using indicators from the Welfare Quality^® project. In total, 1000 chickens were randomly selected and examined during the final week of rearing. The results indicate that pododermatitis scores were mainly distributed between scores 0, 1, and 2 (46.4%, 20%, and 32.2%, respectively). Hock burns were observed with scores of 0 and 1 (49.1% and 49.5%, respectively). However, scores of 1 and 2 were common across all ten buildings for feather condition and lameness. While the overall welfare indicators were generally acceptable, there is a need for improved rearing conditions to address the variations seen between different buildings.

Background: The aim of this study was to determine the influence of season and age on intake in female camels. Methods: study was conducted in the El Alia region (South-East of Algeria). In order to measure bite counts and dry matter intake (DMI) in the dry and wet seasons, monitoring were made on 64 females camels consisted of two age categories, 32 adult (AF) and 32 young (YF). This was done by following one animal randomly selected/day/category. Thus, sixteen simple were observed during each season. Forage intake for each preferred plant species was estimated by multiplying bite counts by the average mass per bite. Forage consumption was quantified by the bite count technique (Gauthier-Pilters and Dagg,1981). Result: The results showed that there was a significant difference (p less than 0.05) in the number of bites between seasons and age categories, with a maximum average 63.33±23 for AF and a minimum average 16.8±12.47 for YF in the dry season and wet season respectively. The highest amounts of dry matter intake (DMI) are recorded in the wet season on Traganum nudatum 1.9 kg DM for YF and 0.34 kg DM in YF. The season influences the feed intake of female camels on course.