Golam Sagir Ahammad

This research explored the impact of dietary micelle quercetin (MQ) supplementation on growth metrics and health indicators in growing pigs. A total of 105 pigs (average body weight: 24.3 ± 3.51 kg) were randomly assigned to one of three dietary treatments for a 15 week trial. A control group (CON) received the basal diet, while TRT1 and TRT2 diets were supplemented with 250 mg MQ/kg and 500 mg MQ/kg, respectively. Each treatment had seven replicates, with five pigs per replicate. The study evaluated growth performance, nutrient digestibility, fecal consistency, noxious gas emissions, and blood biochemical parameters. Results showed that MQ supplementation had no significant effect on growth rates, feed utilization, fecal scores, or gaseous emissions. However, serum bile acid concentration was significantly influenced by MQ supplementation ( p = 0.024), with the TRT2 group exhibiting higher levels than TRT1. In contrast, the control group (CON) did not differ significantly from either treatment. Meanwhile, liver enzyme activities (AST and ALT) remained unchanged ( p > 0.05), suggesting no evidence of hepatic toxicity. In summary, MQ had no impact on overall performance and digestive traits but modulated bile acid profiles in a dose‐dependent manner, which may suggest a possible role in targeted metabolic modulation.

Egg quality and nutritional composition may vary among thermotolerant chicken genotypes reared under hot‐climate conditions, with potential implications for nutritional value and climate‐resilient poultry production. This study compared egg morphometric traits, amino acid composition, yolk fatty acid profile, and mineral content in Fayoumi, Naked Neck, and Frizzled laying hens maintained under the same general feeding and management conditions during the summer period. Naked Neck hens produced the heaviest eggs (55.29 ± 4.11 g) compared with Frizzled (50.18 ± 3.71 g) and Fayoumi hens (48.92 ± 3.85 g), and also showed the highest albumen height (5.81 ± 0.14 mm) and Haugh unit (83.39 ± 1.55). Total protein content ranged from 12.80 ± 0.60 to 13.28 ± 0.11 g/100 g edible portion, whereas individual amino acids displayed clearer variation among genotypes. Fayoumi eggs showed the highest methionine concentration (320.40 ± 20.10 mg/100 g dry matter), Naked Neck eggs the highest leucine level (636.27 ± 82.93 mg/100 g dry matter), and Frizzled eggs the highest histidine content (211.55 ± 6.98 mg/100 g dry matter). Yolk lipid composition also differed among groups: Fayoumi eggs had the highest total lipid (8.92% ± 0.64%) and PUFA proportions (19.10% ± 0.95%), Naked Neck eggs showed the highest MUFA (49.61% ± 1.55%) and total ω3 contents (3.62% ± 0.16%), including the highest DHA level (1.26% ± 0.05%), whereas Frizzled eggs exhibited the lowest ω6/ω3 ratio (3.76 ± 1.48). Mineral composition was more conserved, with sodium, calcium, phosphorus, and potassium remaining comparable across genotypes, whereas iron content differed significantly and was highest in Naked Neck eggs (1.30 ± 0.19 mg/egg) compared with Fayoumi (1.24 ± 0.15 mg/egg) and Frizzled eggs (1.10 ± 0.08 mg/egg). The three genotypes exhibited distinct compositional profiles in the egg matrix, involving morphometric traits, amino acid distribution, lipid fractions, and iron deposition under the present experimental conditions.

Phytogenic feed additives (PFAs) have gained widespread attention in poultry and swine nutrition due to their antioxidant, antimicrobial, and anti‐inflammatory properties. However, their practical application is often hindered by poor solubility, low stability, and limited bioavailability. Micelle technology has emerged as an innovative approach to overcoming these challenges by enhancing the solubility, absorption, and efficacy of phytogenic compounds. This review explores the mechanisms of micelle‐based delivery systems, highlighting their role in improving nutrient utilization, gut health, and overall animal performance. Specific micelle‐encapsulated phytogenic, such as micelle silymarin and micelle quercetin, have demonstrated significant benefits in growth performance, feed efficiency, and oxidative stress reduction in poultry and swine. The potential of micelle technology in reducing antibiotic dependency and mitigating environmental impacts is also discussed. Overall, the integration of micelle‐based phytogenic compounds in animal nutrition represents a promising strategy for optimizing productivity, sustainability, and animal welfare in modern livestock production.

This study investigated the effects of dietary supplementation with micelle silymarin (MS) on the growth performance, nutrient digestibility, gas emissions, and blood profile of growing‐finishing pigs. The objective was to evaluate whether different levels of MS in the diet could enhance overall pig performance and health outcomes. A total of 140 growing pigs, with an average body weight (BW) of 25.4 ± 4.34 kg, were randomly assigned to one of four treatment groups: CON (basal diet), TRT1 (basal diet + 0.025% MS), TRT2 (basal diet + 0.05% MS), and TRT3 (basal diet + 0.1% MS). Each group had seven replicates, with five pigs per replicate. The feeding trial lasted for 15 weeks. Growth performance, nutrient digestibility, gas emissions, fecal scores, and blood profiles were assessed. Dietary supplementation with MS resulted in linear improvements in BW at Weeks 5, 10 and 15, as well as average daily gain (ADG) throughout the experiment ( p < 0.05). There was also a significant increase on average daily feed intake (ADFI) at Week 5 ( p < 0.05). No significant effects on nutrient digestibility were observed ( p > 0.05). However, there was a trend toward reduced ammonia gas emissions ( p = 0.0945), and fecal scores remained unchanged ( p > 0.05). A significant quadratic change in aspartate aminotransferase (AST) levels was observed in the blood profile ( p = 0.0430). MS supplementation, especially at higher doses, improved growth performance and showed a tendency to reduce ammonia gas emissions in growing‐finishing pigs. These findings suggest that MS could be a valuable dietary additive in pig production, offering both performance benefits and potential environmental advantages.

Journal of Animal Science and Technology (JAST) is a peer-reviewed, open access journal publishing original research, review articles and notes in all fields of animal science. Topics covered by the journal include: genetics and breeding, physiology, nutrition of monogastric animals, nutrition of ruminants, animal products (milk, meat, eggs and their by-products) and their processing, grasslands and roughages, livestock environment, animal biotechnology, animal behavior and welfare.

The study evaluated the effects of dietary β-1,3-glucan supplementation on growth performance, organ weight, meat quality, and intestinal health in broilers with dextran sulfate sodium (DSS)-induced colitis. Experiment 1, a total of 304 one-day-old Ross 308 male broiler chicks (average initial body weight: 43.06 ± 6.94 g) were randomly assigned to two treatments with 8 replications (19 birds per replication): CON (basal diet) and TRT1 (basal diet + 0.1% β-1,3-glucan). Supplementation of β-1,3-glucan significantly increased body weight gain (BWG) ( P < 0.05), while feed intake and feed conversion ratio remained unaffected. Breast muscle weight, pH, and water-holding capacity increased, and drip loss decreased ( P < 0.05). Experiment 2 also involved 304 Ross 308 male chicks with an initial BW of 42.03 ± 4.38 g. The chicks were assigned to two treatments with 8 replications (19 birds per replication): TRT1 (basal diet + 2.5% DSS) and TRT2 (basal diet + 2.5% DSS + 0.1% β-1,3-glucan). After 35 days, β-1,3-glucan supplementation significantly improved BWG ( P < 0.05) and intestinal length at both 18 and 35 days ( P < 0.05). The study concluded that dietary β-1,3-glucan supplementation enhanced growth performance, meat quality, and intestinal health in broilers.

This study examined the impact of phytase and β-mannanase supplementation on growth performance, nutrient utilization, fecal condition, and backfat thickness in growing and finishing pigs. In the first experiment, 64 growing pigs (average body weight 24.3 ± 3.51 kg) were divided into two groups with eight replications (four pigs per replicate): one receiving a basal diet and the other diet supplemented with 0.02% phytase and 0.05% β-mannanase. The supplemented group showed significant improvements in average daily gain and nutrient digestibility for energy, nitrogen, and dry matter ( p < 0.05), without changes in feed intake or fecal score ( p > 0.05). In the second experiment, 56 finishing pigs (average body weight 54.36 ± 3.53 kg) were also split into two groups with seven replications (four pigs per replicate): one on a basal diet and the other on a diet with 0.04% β-mannanase. While β-mannanase supplementation did not significantly affect growth performance ( p > 0.05), it did enhance energy digestibility by the study’s end ( p < 0.05). No significant effects were found on backfat thickness, lean meat percentage, or fecal score ( p > 0.05). The study concluded that phytase and β-mannanase together enhance growth and nutrient digestibility in growing pigs; β-mannanase alone boosts nutrient utilization in finishing pigs.

The study aimed to evaluate the effects of quercetin micelles (MQ) on performance, egg quality, and blood profile of laying hens. A total of 288 Hy- Line Brown laying hens were randomly assigned to one of three dietary groups, with eight replicates of 12 hens each. The hens were housed...

Sweeteners are beneficial for weaning pigs as they contribute to improved palatability, increased feed intake, energy provision, gut health support, and alleviation of post-weaning stress. This study was conducted to evaluate the effects of saccharin on growth performance, nutrient digestibility, fecal microbial, and fecal score of weaning pigs. A total of 80 (21 days old) crossbred ([Yorkshire × Duroc] × Landrace) healthy weaned piglets with an initial body weight (BW) of 6.85 ± 1.36 kg were randomly allotted to one of two nutritive treatments with 8 repetitions and five pigs (2 female and 3 male) per pen. The dietary treatments consisted of control (CON): basal diet; treatment (TRT): basal diet + 0.03% saccharin. The result showed that average daily gain (ADG) and average daily feed intake (ADFI) were increased (p < 0.05) in weaning fed saccharin supplemented diets compared with control diet. However, there was no significant difference in nutrient digestibility, fecal microbial, and fecal score among dietary treatments (p > 0.05). In summary, the sweetener supplementation with diet had a significant effect on ADG and ADFI without compromising nutrient digestibility, fecal microbial, and fecal score in the weaning pigs.

This study investigated the impacts of micellar quercetin (MQ) supplementation on growth performance, meat stability, excreta gas emissions, and physiological status. During a 35-day trial, 640 Ross 308 broilers were utilized. These birds were one day old, with an average initial body weight of 43.34 ± 1.43 g. They were randomly distributed across four experimental diets, each consisting of 10 replicate pens with 16 chicks per pen. The diets included the following: control (CON) with 0% micellar quercetin (MQ), TRT1 with 0.025% MQ, TRT2 with 0.050% MQ, and TRT3 with 0.100% MQ. The results indicate that broilers fed diets with increasing levels of MQ exhibited significantly higher body weight gains (BWGs) compared to the control group (p < 0.05). There was a clear linear increase in the breast muscle percentage with higher levels of quercetin supplementation (p < 0.05), while the breast color remained consistent across all groups (p > 0.05). Both cooking loss and drip loss exhibited a linear decrease as MQ levels in the diet increased (p < 0.05). The level of aspartate aminotransferase (AST) tended to decrease with higher MQ levels. Thyroxine (T4) and lymphocyte levels also showed a linear increase with increasing MQ dosage in the diet (p < 0.05). However, no significant effects were observed on nutrient digestibility, gas emissions, or fecal microbial components (Lactobacillus, E. coli, and Salmonella) with higher levels of MQ supplementation (p > 0.05). In conclusion, augmenting quercetin levels in the diet positively influenced the BWG, breast muscle development, and meat quality parameters such as cooking loss and drip loss, with beneficial effects on blood profiles.