Poultry red mite (PRM; ) is a hazardous, blood-sucking ectoparasite of birds that constitutes a threat to poultry farming worldwide. Acaricides, commonly used in poultry farms to prevent PRMs, are not effective because of the rapid emergence of acaricide-resistant PRMs. However, vaccination may be a promising strategy to control PRM. We identified a novel cystatin-like molecule in PRMs: . mRNA expression was detected in the midgut and ovaries, in all stages of life. The PRM nymphs that were artificially fed with the plasma from chickens that were immunized with in vitro had a significantly reduced reproductive capacity and survival rate. Moreover, combination of with other antigen candidates, like copper transporter 1 or adipocyte plasma membrane-associated protein, enhanced vaccine efficacies. vaccination and its application as an antigen for cocktail vaccines could be an effective strategy to reduce the damage caused by PRMs in poultry farming.
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http://dx.doi.org/10.3390/vaccines9121472 | DOI Listing |
Huan Jing Ke Xue
January 2025
State Key Laboratory of Subtropical Silviculture, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, China.
Sorption and transport are important environmental behaviors of antibiotics in soils and can determine the fate of antibiotics in environments; however, limited relevant studies have been conducted on long-term manured soils. In this study, batch and repacked soil column experiments were conducted to examine the sorption and transport behavior of four veterinary antibiotics, including sulfamethazine (SMT), florfenicol (FFC), doxycycline (DOX), and enrofloxacin (ENR), in red soils, yellow soils, and calcareous soils with long-term amendment of chicken or pig manure collected in Zhejiang Province. The results showed that the sorption isothermal data of the four target antibiotics all conformed well to the linear and Freundlich models.
View Article and Find Full Text PDFPoult Sci
December 2024
School of Agriculture and Food Systems, West Virginia University, Morgantown, WV 26506.
Serotonin is a potent immunomodulatory neurohormone. Activities of the serotonergic and immune systems are often reported together in poultry studies with unidirectional analyses focused on serotonergic signaling mediating immune response. Considering serotonin's relevance across a range of immune-related poultry topics, elucidation of whether the immune system affects the serotonergic system can provide valuable insights into the bi-directionality of poultry neuroendocrine-immune interactions.
View Article and Find Full Text PDFJ Therm Biol
October 2024
National Institute of Animal Science, Rural Development of Administration (NIAS-RDA), Wanju-gun, 55365, Republic of Korea. Electronic address:
High environmental temperatures lead to metabolic changes, body weight reduction, and high mortality in chickens, affecting poultry production worldwide. This study aimed to evaluate the effects of heat stress, assessed by the temperature-humidity index (THI), on the growth performance, physiological response, carcasses, and hematological traits of broilers. A total of 200 broilers (between 17 and 31 days old) were kept in thermoneutral conditions (21 °C; 60% relative humidity, RH) for 3 days during the adaptation period, followed by 14 days of exposure to the experimental treatments.
View Article and Find Full Text PDFCancer Epidemiol Biomarkers Prev
December 2024
Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Background: Epidemiological evidence on meat consumption and liver cancer risk is limited and inconclusive; moreover, no prospective study has been conducted to investigate this association in China. Hence, we performed this study to examine the associations of red meat, poultry, and fish consumption with the risk of liver cancer in a Chinese population.
Methods: A total of 510,048 Chinese adults aged 30-79 years were included, and were followed up through December 31, 2016.
Anim Genet
February 2025
Key Laboratory of Genetic Evolution & Animal Models and Yunnan Key Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China.
The feralization of domestic chicken makes the conservation and management of red jungle fowl (Gallus gallus) more complicated and challenging. We collected two Sulawesi feral chickens, located east of the Wallace Line, for whole-genome sequencing and de novo genome assembly. Phylogenetic and f4-statistics analyses indicated that the Sulawesi feralized domestic chickens (G.
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