Ten different layer and broiler breeding farms, located in the central part of the country were sampled to detect antibodies against the Avian Encephalomyelitis Virus (AEV). Fifty embrionated eggs, per house, were examined using the Embryo Susceptibility Test. Samples of eggs from 21 houses of broiler breeder hens and 9 of breeder layers were collected from all the poultry farms studied. The antigen used in the Embryo Susceptibility Test was prepared from the van Roekel strain for AEV. The results indicated a high degree of specific immunity against the AEV in 86.7% of the sections checked. This immunity could be due to the presence of the causal of AEV in natural form, since the birds in these farms had not been vaccinated against this ornithopathy. This is the first study carried out in Chile which detected the presence of antibodies against AEV in layer and broiler breeding farms, leading to a massive vaccination program against the disease in the country.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Defense guard: strategies of plants in the fight against Cadmium stress.
Adv Biotechnol (Singap)
December 2024
State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Stress Biology, School of Agriculture and Biotechnology, Shenzhen Campus of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen City, 518107, China.
Soil Cadmium (Cd) contamination is a worldwide problem with negative impacts on human health. Cultivating the Cd-Pollution Safety Cultivar (Cd-PSC) with lower Cd accumulation in edible parts of plants is an environmentally friendly approach to ensure food security with wide application prospects. Specialized mechanisms have been addressed for Cd accumulation in crops.
View Article and Find Full Text PDFGrowth trajectory of Yiling sheep and its related genetic parameters.
Trop Anim Health Prod
January 2025
Laboratory of Small Ruminant Genetics, Breeding and Reproduction, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.
Growth traits are one of the focuses of sheep breeding, and growth curve is an effective method to describe growth traits. The body weight of Yiling sheep at 0, 120, 180, 360 and 540 days of age were fitted with five common nonlinear growth models: Logistic, Gompertz, Von Bertalanffy, Brody and Negative exponential, and the growth models were evaluated by goodness of fit standard. The results showed that the Von Bertalanffy model was suitable for characterizing the growth of Yiling sheep.
View Article and Find Full Text PDFDecoding the genetic blueprint: regulation of key agricultural traits in sorghum.
Adv Biotechnol (Singap)
September 2024
School of Agriculture and Biotechnology, Sun Yat-sen University, Shenzhen, 518107, P. R. China.
Sorghum, the fifth most important crop globally, thrives in challenging environments such as arid, saline-alkaline, and infertile regions. This remarkable crop, one of the earliest crops domesticated by humans, offers high biomass and stress-specific properties that render it suitable for a variety of uses including food, feed, bioenergy, and biomaterials. What's truly exciting is the extensive phenotypic variation in sorghum, particularly in traits related to growth, development, and stress resistance.
View Article and Find Full Text PDFWater-saving techniques: physiological responses and regulatory mechanisms of crops.
Adv Biotechnol (Singap)
October 2023
Department of Biology, Hong Kong Baptist University, and State Key Laboratory of Agro-Biotechnology, Chinese University of Hong Kong, Hong Kong, 999077, China.
Water-saving irrigation techniques play a crucial role in addressing water scarcity challenges and promoting sustainable agriculture. However, the selection of appropriate water-saving irrigation methods remains a challenge in agricultural production. Additionally, the molecular regulatory mechanisms of crops under water-saving irrigation are not yet clear.
View Article and Find Full Text PDFStudying plant autophagy: challenges and recommended methodologies.
Adv Biotechnol (Singap)
October 2023
State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China.
In plants, autophagy is a conserved process by which intracellular materials, including damaged proteins, aggregates, and entire organelles, are trafficked to the vacuole for degradation, thus maintaining cellular homeostasis. The past few decades have seen extensive research into the core components of the central autophagy machinery and their physiological roles in plant growth and development as well as responses to biotic and abiotic stresses. Moreover, several methods have been established for monitoring autophagic activities in plants, and these have greatly facilitated plant autophagy research.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!