A5085085628- Animal Nutrition and Physiology
- Meat and Animal Product Quality
- Animal Behavior and Welfare Studies
- Bacteriophages and microbial interactions
- Gut microbiota and health
- Veterinary medicine and infectious diseases
- Moringa oleifera research and applications
- Microbial infections and disease research
- Insect and Pesticide Research
- Aquaculture Nutrition and Growth
- Coccidia and coccidiosis research
- Aquaculture disease management and microbiota
- Algal biology and biofuel production
- Antioxidant Activity and Oxidative Stress
- Clostridium difficile and Clostridium perfringens research
- Probiotics and Fermented Foods
Konkuk University
2021-2024
The present study was conducted to assess animal welfare status of broiler chickens raised in conventional and welfare-certified farms. One farm (30,000 birds/house, 1,488 m2/house, 2 houses) one (32,000 1,920 were selected measure productivity, stress responses, indicators 3 flocks (2 farms/season, n = 6 flocks/farm type) during summer, autumn, spring. Upon visits, body weight, uniformity, (i.e., fecal feather corticosterone, footpad dermatitis, hock burn, dirtiness, gait score) measured at...
This study was performed to investigate supplementary effects of probiotic Lacticaseibacillus paracasei NSMJ56 strain on laying performance, egg quality, intestinal histology, antioxidant status, gut immunity and microbiota in hens. A total ninety-six 21-week-old Hy-Line Brown hens were randomly subjected one two dietary treatments: a control group fed non-supplemented diet, or with diet supplemented 1 g (5 × 108 CFU/kg diet). The trial lasted for 4 wk. Egg weight increased (P < 0.05)...
Objective: This experiment was conducted to investigate the effect of grain-based pecking blocks on productivity and welfare status at two commercial broiler welfare-certified farms.Methods: Production indicators were assessed farms (designated Farm A B). Both had windowless houses with forced tunnel-type ventilation housed broilers stocking densities approximately 16.7 birds/m<sup>2</sup> (Farm A) 16.8 Each house divided into or three equal sections provided without blocks....
The objective of this study was to evaluate the effects dietary sulfur from either organic (methyl sulfonyl methane, MSM) or inorganic (sodium sulfate, SS) sources on growth performance broiler chickens challenged against a high-dose coccidiosis vaccine. A total 320 day-old Ross 308 chicks were randomly placed into 32 pens 10 birds each (keeping 16 pens/control group and 8 pens/treatment until 21 days post-hatch) reared for 28 days. experimental diets formulated by mixing corn soybean...
The objectives of this study were to recover bacteriophages (BPs) from the intestinal digesta BP-fed broilers and evaluate antibacterial effects encapsulated or powdered BPs in broiler chickens challenged with Clostridium perfringens. Day-old chicks (n = 320/experiment) randomly assigned 32 pens 10 broilers/pen) allocated one four dietary groups: (1) unchallenged group (NEG); (2) C. perfringens-challenged (POS); (3) POS fed a diet supplemented BPs; (4) BPs. On days 21, 22, 23 post-hatch, all...
A feeding trial was conducted to investigate the effect of dietary supplementation Chlorella vulgaris (CV) or Tetradesmus obliquus (TO) on laying performance, egg quality, and gut health indicators hens. total 144 Hy-Line Brown hens aged 21 weeks were randomly assigned one three treatments with eight replicates six Dietary as follows: CON, basal diet; CV, diet + 5 g C. vulgaris/kg TO, T. obliquus/kg diet. The results showed that diets supplemented CV TO had insignificant effects quality...
The present study was conducted to investigate the comparative effects of organic and inorganic forms sulfur, methyl sulfonyl methane (MSM) sodium sulfate (SS), on laying performance, egg quality, ileal morphology, volatile fatty acids, antioxidant stress markers in various biological samples aged hens. A total 144, 73-week-old Lohman Brown-Lite hens were randomly assigned one three experimental diets: basal diet (CONT), CONT + 0.2% MSM (MSM), 0.3% SS (SS). trial lasted for 12 weeks. diets...
This study evaluated the effects of graded levels dietary methyl sulfonyl methane (MSM) on laying performance, egg quality, antioxidant capacity, and incorporation MSM into albumen hens. A total 240 73-week-old hens (Lohmann Brown Lite) were randomly allotted to 1 5 treatments, with 8 replicates 6 birds per replicate. The experimental diets formulated by mixing corn soybean meal-based reach 0.0, 1.0, 2.0, 3.0, 4.0 g kg diet, fed for 12 weeks. Increasing led a significant quadratic effect...
This study explored the impact of perches on productivity and welfare broilers raised two animal welfare-certified farms (designated as Farm A B) in South Korea. Broiler houses each farm were provided with or without wooden square-shaped (2 × 2 cm) at a rate m per 1000 birds. The aimed to assess whether could influence measures, such weight uniformity, indicators, including corticosterone levels physical health markers. findings showed that effects inconsistent, varying by period....