20 July 2023 in Asian Journal of Dairy and Food Research
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.
7 July 2025 in The North African Journal of Food and Nutrition Research
Background: Intense physical activity, such as football (soccer), can induce exercise-induced muscle damage (EIMD) and associated inflammatory responses. These perturbations can lead to increased levels in serum biomarkers such as creatine kinase (CK) and C-reactive protein (CRP). In response, athletes increasingly employ various recovery modalities, with nutritional interventions featuring antioxidant properties representing a prominent strategy. Aims: This study aimed to evaluate and compare the efficacy of beetroot juice (BEJ) and pomegranate juice (POJ)—beverages recognized for their antioxidant and anti-inflammatory potential—, on modulating CK and CRP levels in football players throughout a regular training cycle. Participants and Methods: A cohort of 18 amateur football players was allocated into three groups (n=6 per group): a pomegranate juice (POJ) group; a beetroot juice (BEJ) group; and a placebo (PLA) group. Baseline CK and CRP levels were determined before and after a high intensity training (HIT) session prior to supplementation. Participants then consumed their daily supplement for 22 days. CK and CRP levels were re-assessed 24 hours before and after HIT sessions on days 12 and 22 of the intervention. Results: Following the 22-day supplementation period, CK levels was significantly lower in both POJ (209.30 ± 44.25 IU/L, p < 0.0001) and BEJ (188.27 ± 26.29 IU/L p < 0.0001) compared to the PLA group (327.75 ± 15.32 IU/L). No statistically significant difference in CK reduction was observed between the POJ and BEJ groups (p >0.05). In contrast, CRP levels did not exhibit any significant changes across the groups at any measurement point (p > 0.05). Conclusions: The findings reveal that both pomegranate and beet juices supplementation offer comparable protective effects against EMID, as demonstrated by the attenuation of post-exercise CK levels. This underlines the significance of the quality and diversity of bioactive compounds in nutritional recovery strategies. The study also highlights the complex relationship between exercise, muscle damage, and systemic inflammation, necessitating the exploration of further markers for a complete assessment. Keywords: Beta vulgaris; Punica granatum; Antioxidant Supplementation; Exercise-Induced Muscle Damage (EIMD); C-Reactive Protein; Team Sports Nutrition; Recovery Strategies.
4 December 2025 in Revista Científica de la Facultad de Ciencias Veterinarias
Sustainable feeding strategies are needed to improve the quantity and quality of sheep milk. This study evaluated the impact of partially substituting conventional concentrate with date by– products, with or without the addition of Saccharomyces cerevisiae, on the physicochemical composition of milk produced by Ouled Djellal ewes. 30 ewes were randomly divided into 5 groups. All ewes received wheat straw (1 kg·ewe-1) as roughage (66.66%). In addition to wheat straw, the control group received 33% concentrate (33CON), and the 4 experimental groups received different levels of date by–products and concentrate: 8.33% date by–products + 25% concentrate (8.33 date by–products), 25% date by–products + 8.33% concentrate (25 date by–products), 16.6% date by–products + 16.6% concentrate (16.6 date by– products), and 16.6% date by–products + 16.6% concentrate with Saccharomyces cerevisiae (16.6 date by–products sc). The milk samples were analyzed to determine their fat, protein, lactose, total solids, and non-fat solids content. Milk fat content (P<0.01) and total solids (P=0.025) were significantly higher in the experimental groups than in the control group, particularly in the 25 date by– products and 16.6 date by–products sc rations. Protein and non-fat solids content increased numerically without reaching statistical significance, while lactose levels remained relatively stable in all treatments. Partial substitution of concentrate with date by– products improved milk quality, indicating that date by–products can be a sustainable feed resource for dairy ewes, thereby adding value to their milk products.