Developmental changes of skin quality from breast, back, and thigh of Pekin ducks from 1 to 6 weeks of age

Poultry Science, Journal Year: 2025, Volume and Issue: 104(2), P. 104759 - 104759

Published: Jan. 6, 2025

Good skin quality not only improved carcass but also increased consumer demand for fresh poultry meat. This study aimed to investigate the developmental changes in growth and of Pekin ducks during 1-6 weeks age. The samples were collected from breast, back, thigh tissues six male at end each week. strength, thickness, collagen content as well related gene expressions determined evaluation quality. results showed that body weight, absolute areas, density, epidermal dermal thickness (breast thigh), shearing force, piercing force (back linearly quadratically with age, reaching a plateau 5-6 age (P < 0.05). mRNA IGF-1 FGFR1 cell proliferation highest 3 while expression FGF14 EGF associated synthesis reached maximum values 5 Additionally, IGF1R FGFR2 upregulated breast skins 1 week old back compared birds other In conclusion, pattern structure linear manner was quadratic manner, which target genes synthesis.

Language: Английский

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Insights into the gut microbiota characteristics between the organic and traditional feeding chickens based on amplicon and metagenomic sequencing

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 15

Published: Jan. 23, 2025

Intestinal microorganisms play a crucial role in chicken health and production performance, especially the research of traditional organic feeding methods. The intestinal contents feed chickens were analyzed by 16S rRNA gene metagenome technology. results showed that microbial diversity was significantly higher than chickens, key microorganisms, such as Enterococcus , more abundant chickens. functional analysis revealed significant difference metabolic function between them. present study provides new insights into gut microbiota characteristics based on amplicon metagenomic sequencing. Our are helpful to fully illustrate effects different methods can offer scientific basis for management.

Language: Английский

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Effect of Lactococcus lactis JNU 534 Supplementation on the Performance, Blood Parameters and Meat Characteristics of Salmonella enteritidis Inoculated Broilers

Microorganisms, Journal Year: 2025, Volume and Issue: 13(3), P. 525 - 525

Published: Feb. 27, 2025

Salmonellosis in broilers is a disease with considerable economic implications for the poultry industry. As foodborne illness, it also poses public health risk due to potential cross-contamination. Probiotics have been proposed as alternative feed additives aiming enhance growth, livestock productivity, and overall health. This study investigated dietary impact of Lactococcus lactis JNU 534 on growth performance, blood characteristics, internal organ weight, meat quality inoculated Salmonella enteritidis (SE). A total 96 one-day-old Arbor Acres broiler chickens, comprising both sexes, were challenged SE randomly assigned into two treatment groups housed eight pens (four per each treatment, 12 birds pen). They fed commercial diet 35 days. The consisted control group receiving feed, supplemented 0.3% L. 534. Probiotic supplementation significantly improved average body weight gain, efficiency, carcass yield compared (p < 0.05). Notably, abdominal fat pad was reduced probiotics Meat assessments revealed no significant differences between terms pH, cooking loss, drip water-holding capacity. These findings suggest that promising candidate mitigate negative effects performance farms, without adversely affecting Extending research other types could help confirm its wider use an antibiotics.

Language: Английский

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Bacillus aryabhattai CKNJh11 as a promising probiotic improves growth performance and egg quality in laying hens

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 21, 2025

This study aimed to identify probiotic candidates enhance egg quality in laying hens by isolating and characterizing Bacillus spp. from various local environmental sources, including crustacean guts such as mud crab (Scylla serrata), blue (Portunus pelagicus), banana shrimp (Penaeus merguiensis) the coastal areas of Gulf Thailand Andaman Sea, pond sludge, hot spring soil chicken feces. Identification was carried using biochemical tests, evaluation properties, 16S rRNA sequencing methods. Biochemical tests revealed that all 11 isolated strains had characteristics consistent with Six these exhibited high spore efficiency, CPPES01T2 (74.67%), CKNJh11 (80.33%), OYNH31 (82.07%), THPS1 (71.42%). Strains were sensitive ampicillin (10 µg/disc), amoxicillin (30 cloxacillin (1 tetracycline chloramphenicol kanamycin µg/disc). showed tolerance heat, while CPPES01T2, CKNJh11, demonstrated no hemolytic activity. Furthermore, selected for developing a supplementary feed 16 S identified strain aryabhattai which resistance artificial gastric juice bile salts. For 6 weeks study, resulting an increase weight gain eggshell chickens (p < 0.05). The findings this suggest B. can be promising spore-forming bacteria dietary supplementation respect hen performance, or further development production.

Language: Английский

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Food Additives Derived from Fruits and Vegetables for Sustainable Animal Production and Their Impact in Latin America: An Alternative to the Use of Antibiotics

Foods, Journal Year: 2024, Volume and Issue: 13(18), P. 2921 - 2921

Published: Sept. 15, 2024

The production of healthy animal-derived food entails the effective control foodborne pathogens and strategies to mitigate microbial threats during rearing. Antibiotics have been traditionally employed in animal farming manage bacterial infections. However, prohibition antibiotic growth promoters livestock has brought significant changes practices. Although antibiotics are now restricted treating preventing infections, their overuse caused serious public health issues, including resistance presence residues wastewater. Therefore, sustainable is crucial reducing spread antibiotic-resistant bacteria. Annually, 40–50% fruit vegetable discarded worldwide. These discards present potential for extracting value-added ingredients, which can reduce costs, decrease waste, enhance economy. This review highlights negative impacts use stresses importance analyzing challenges safety concerns ingredients from co-products at an industrial scale. It also explores current trends livestock, with a focus on Latin American contexts. Finally, suitability using derived feeds discussed.

Language: Английский

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The active roles of Rhodotorula mucilaginosa ZTHY2 in regulating antioxidant capacity and immune function of Leizhou black ducks

Frontiers in Veterinary Science, Journal Year: 2025, Volume and Issue: 12

Published: Jan. 30, 2025

Previous studies in mice have demonstrated that Rhodotorula mucilaginosa ZTHY2 can promote animal growth, enhance antioxidant and immune functions, regulate intestinal flora our laboratory. This study focuses on the Leizhou black duck, a local breed Zhanjiang, to evaluate effects of its capacity, function. A total 150 1-day-old male ducks, similar size healthy, were selected for this randomly assigned five treatment groups. Each group contained three replicates with ten birds each. The control (Control) was given standard basal diet, while RM received diet supplemented at concentrations 2 × 10 7 (RM1), 8 (RM2), or 9 (RM3) CFU/kg, respectively. LA CFU/kg Lactobacillus acidophilus addition diet. feeding trial lasted 42 days. analysis revealed significant improvements average body weight RM2 RM3 groups, which significantly higher than ( p &lt; 0.05 0.01). Treatment induced dose-dependent elevation superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px), SOD activities, reduction malondialdehyde (MDA) content serum levels complement components C3 C4, immunoglobulin IgG, cytokines IFN- γ , IL-2, IL-4, IL-6, TNF- α increased ducks treated 42-days post-treatment, therapeutic effect becoming more pronounced as duration experiment prolonged. greatest impact observed dosage ZTHY2. Moreover, modulated mRNA expression profiles these thymus, spleen, bursa, thereby sustaining balance dynamics. In summary, supplementation had been found most effectively growth performance by optimizing their function capacity.

Language: Английский

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Probiotic Consortium from Poultry Strains for Supporting Gut Immunity Against Pathogens

Microbial Pathogenesis, Journal Year: 2025, Volume and Issue: unknown, P. 107584 - 107584

Published: April 1, 2025

Language: Английский

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Influences of Bacillus pumilus SA388 as an environmentally friendly antibiotic alternative on growth performance, blood biochemistry, immunology, cecal microbiota, and meat quality in broiler chickens

Poultry Science, Journal Year: 2024, Volume and Issue: 103(11), P. 104115 - 104115

Published: July 17, 2024

The widespread use of antibiotics causes the development antibiotic-resistant bacterial strains, which have a severe impact on poultry productivity and human health. As result, research is continuing to develop safe natural antibiotic alternatives. In current study, Bacillus pumilus SA388 was isolated from chicken feces confirmed be probiotic. selected strain tested for its antimutagenic antioxidant capabilities before being employed as probiotic food supplement alternative. effect B. broiler chickens' growth performance, gut microbiome, blood biochemical markers, immunological response, meat quality also studied. showed significant bactericidal activity against Streptococcus pyogenes, Listeria monocytogenes, Staphylococcus aureus, Escherichia coli, Salmonella typhi, Klebsiella pneumonia. A total 200 chickens were used in present divided equally among four experimental groups (ten birds per group with five replicates): 1 (control, G1) received basal diet without SA388, 2 (G2) supplemented 0.4 mg/kg 3 (G3) 0.8 4 (G4) 1.6 SA388. Over 35 days, SA388-supplemented outperformed G1 terms body weight gain, performance index, feed conversion ratio, preference G4 treatment. levels alanine aminotransferase (ALT), aspartate transaminase (AST), low-density lipoprotein (LDL), cholesterol decreased significantly (P < 0.05) increasing dosages compared control group. Dietary supplementation at resulted improved lipid profile, thyroid function, microbiota (G1). Compared broilers treatment (G1), addition enhanced juiciness, tenderness, aroma, taste. Adding different doses average intake while economic relative efficiency measures. conclusion, has been proven an effective nutritional supplement.

Language: Английский

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Effect of Rumex nervosus leaves as a dietary supplement in broiler diets on the breast quality characteristics of broiler chickens

Cogent Food & Agriculture, Journal Year: 2024, Volume and Issue: 10(1)

Published: July 24, 2024

The leaves of Rumex nervosus (RNL) have beneficial effects associated with phytochemical products, such as gallic acid (GA), and could therefore a positive effect on breast quality traits in broilers. This study aimed to assess the potential supplementation RNL natural herb quality, carcass characteristics, production indices A total 120 broiler chicks were arbitrarily assigned four dietary treatment groups, each five replicates (♂:♀ = 3:3 per replicate). Each experimental meal was designed contain basal diet 0 g (CONT), 1 (T1), 3 (T2), 5 (T3). During study, parameters collected for replicate. On day 34, one male from replicate slaughtered meat parameters. present findings revealed that broilers treated T2 had larger absolute weight (g) dressing yield (%) (P < 0.05) than other treatments. relative intestine increased increasing doses up g. In terms drip loss (DL), water-holding capacity (WHC), myofibrillar fragmentation index (MFI), shear force (SF) (as an indicator tenderness), springiness, T1 outperformed T3. pH, MFI, SF, springiness decreased significantly at Based these it concluded use preservative, especially T1, can extend shelf life characteristics fresh carcasses.

Language: Английский

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Changes of bone and articular cartilage in broilers with femoral head necrosis

Poultry Science, Journal Year: 2024, Volume and Issue: 103(10), P. 104127 - 104127

Published: July 29, 2024

Femoral head necrosis (FHN) in broilers is a common leg disorder intensive poultry farming, giving rise to poor animal health and welfare. Abnormal mechanical stress the hip joint risk factor for FHN, articular cartilage attracting increasing attention as cushion lubrication structure joint. In present study, aged 3 4 wk with FHN were divided into femoral separation (FHS) growth plate lacerations (FHSL) groups, normal control. The features of joint, bone, assessed progression using devices including computed tomography (CT), atomic force microscope (AFM), transmission electron microscopy (TEM). Broilers demonstrated decreased bone properties, narrow space, thickened stellate structures. Notably, abnormal morphology was observed FHN-affected broilers, characterized by increased thickness rough surfaces. addition, developed, surface friction coefficient dramatically increased, while modulus stiffness decreased. ultramicro-damage occurred chondrocytes extracellular matrix (ECM) cartilage. Cell disintegration, mitochondrial accumulation, oxidative damage chondrocytes. A notable decline collagen content ECM during initial stages accompanied pronounced reduction fiber diameter proteoglycan progressed. Furthermore, noticeable loosening appearance type I noted conclusion, there progressive decrease quality multifaceted head, which closely linked severity broilers.

Language: Английский

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