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Antibiotic resistance gene pollution in poultry farming environments and approaches for mitigation: A system review.
Poult Sci
January 2025
College of Biology and Agriculture, Shaoguan University, Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan, 512005, Guangdong, PR China. Electronic address:
Antibiotic resistance genes (ARG) pollution in poultry farming environments has become increasingly critical, primarily driven by the widespread use of antibiotics in animal husbandry. Prolonged antibiotic use has led to the emergence of ARGs and antibiotic-resistant bacteria, spreading via horizontal and vertical gene transfer. The complexity of ARG pollution in poultry farming arises from the unique farming practices, physiological characteristics of poultry, and manure management methods, with manure, wastewater, and air serving as significant vectors for ARG dissemination.
View Article and Find Full Text PDFThe effects of Fraxini cortex and Andrographis herba on Escherichia coli-induced diarrhea in chicken.
Poult Sci
January 2025
College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, PR China; Institute of Traditional Chinese Veterinary Medicine, Northwest A&F University, 712100, Yangling, PR China. Electronic address:
Escherichia coli (E. coli) is a type of pathogenic bacteria that often causes diarrhea in poultry. While antibiotics can control E.
View Article and Find Full Text PDFPerformance of 1-year-old camel calves fed a basal ration of alfalfa hay supplemented with different levels of concentrate.
BMC Vet Res
January 2025
Animal Production Department, National Research Centre, Cairo, Egypt.
Background: The use of a high-concentrate diet in fattening camels may have significant effects on growth performance and digestion as well as economic returns. This experiment was designed to study the effects of feeding different levels of concentrate in their diet on growth performance and digestion in a desert climate.
Methods: Eighteen 12-month-old male camel calves were used, and divided into three treatments of six each.
Effects of lipoic acid on production performance, meat quality, serum biochemistry and antioxidant function in heat-stressed broilers.
Trop Anim Health Prod
January 2025
College of Animal Sciences, Anhui Science and Technology University, Fengyang, 233100, China.
This study was aim to investigate the effects of lipoic acid (ALA) on performance, meat quality, serum biochemistry and antioxidant function of broilers under heat stress (HS). Two hundred1-day-old Cobb broilers were randomly divided into four treatment groups and each treatment consisted of 4 replicates of 10 broilers each. The treatment group adopts a 2 × 2 two-factor setting, which is divided into two diets (basic diet or 250 mg/kg ALA diet) and two temperatures (24 ± 1℃ or 33 ± 1℃).
View Article and Find Full Text PDFA locally administered single-cycle influenza vaccine expressing a non-fusogenic stabilized hemagglutinin stimulates strong T-cell and neutralizing antibody immunity.
J Virol
January 2025
MRC Translational Immune Discovery Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom.
Unlabelled: Current influenza vaccination approaches protect against specific viral strains, but do not consistently induce broad and long-lasting protection to the diversity of circulating influenza viruses. Single-cycle viruses delivered to the respiratory tract may offer a promising solution as they safely express a diverse array of viral antigens by undergoing just one round of cell infection in their host and stimulate broadly protective resident memory T-cell responses in the lung. We have previously developed a vaccine candidate called S-FLU, which is limited to a single cycle of infection by inactivation of the hemagglutinin signal sequence and induces a broadly cross-reactive T-cell response and antibodies to neuraminidase, but fails to induce neutralizing antibodies to hemagglutinin after intranasal administration.
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