The central nervous system (CNS) of the pigeon has been difficult to fix with consistency, and consequently this problem has impeded ultrastructural studies of various parts of the pigeon brain. Here we describe a method for effective fixation of the pigeon CNS and discuss the three principal problems associated with good fixation of this animal's brain. The animal was deeply anesthetized and the thoracic cavity was opened without collapsing the pectoral girdle upon the brachiocephalic trunks and the common carotids. The perfusion pressure was raised to 140-150 mm Hg to overcome the high resistance of the small diameter, long common carotids. Heparin was added to the wash buffer to retard coagulation of blood in the vascular bed of the brain. The method is not foolproof, but with care excellent fixation can be achieved.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/ar.1092000112 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Microbes in Agriculture: Prospects and Constraints to Their Wider Adoption and Utilization in Nutrient-Poor Environments.
Microorganisms
November 2024
Department of Chemistry, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa.
Microbes such as bacteria and fungi play important roles in nutrient cycling in soils, often leading to the bioavailability of metabolically important mineral elements such as nitrogen (N), phosphorus (P), iron (Fe), and zinc (Zn). Examples of microbes with beneficial traits for plant growth promotion include mycorrhizal fungi, associative diazotrophs, and the N-fixing rhizobia belonging to the α, β and γ class of Proteobacteria. Mycorrhizal fungi generally contribute to increasing the surface area of soil-root interface for optimum nutrient uptake by plants.
View Article and Find Full Text PDFPrevalence Study of in Domestic Pigeons in Northeastern Beijing and Experimental Model of Trichomoniasis in White King Squabs Measuring In Situ Apoptosis and Immune Factors in Crop and Esophagus.
Animals (Basel)
June 2024
State Key Laboratory of Animal Biotech Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
Article Synopsis
- - The study investigated the prevalence of the flagellated protozoan responsible for trichomoniasis in five pigeon breeds, finding White King pigeons to have the highest prevalence at 43.14%.
- - A total of 135 White King squabs were divided into a challenged group (100 squabs) that received the protozoan and a control group (35 squabs) for comparison, with various samples collected for analysis at different post-infection days.
- - Results indicated mild tissue damage and higher apoptosis rates in the challenged group over time, with significant variations in gene expression in the affected tissues, particularly showing an initial spike followed by a decrease at 5 days post-infection.
Whole-Genome Sequencing for Identifying Candidate Genes Related to the Special Phenotypes of the Taihu Dianzi Pigeon.
Animals (Basel)
March 2024
Henan Tiancheng Pigeon Industry Co., Ltd., Pingdingshan 462513, China.
The Taihu Dianzi pigeon is a breed native to China, and its special piebalding, crest, and polydactyly phenotypes are the result of artificial and natural selection. Here, we analyzed the genetic differences among three kinds of pigeons with different phenotypes at the genomic level. A selective sweep was conducted based on the fixation index () and nucleotide diversity () ratio, and the results revealed that was related to the formation of the distinctive piebalding of the Taihu Dianzi pigeon.
View Article and Find Full Text PDFDecomposition and nutrient release of green manure biomass in a passion fruit orchard in the brazilian semiarid region.
Environ Monit Assess
August 2023
Departamento de Energia Nuclear, Universidade Federal de Pernambuco, Avenida Professor Luiz Freire, 1000, 50740-545, Cidade Universitária, Recife, PE, Brasil.
Green manure decomposition and nutrient recycling improve soil quality and productivity of different crops, but information on irrigated fruit orchards in the Brazilian semi-arid region is still scarce. Decomposition and nitrogen, phosphate, and potassium release from the cut biomass of three green manure legumes (sunn hemp, pigeon pea and jack bean) placed in litterbags, and spontaneous vegetation grown for 90 days in the rows of a passion fruit orchard were followed for 150 days. Biomasses decreased exponentially, reaching 12 (sunn hemp) to 25% (jack beans and spontaneous vegetation) after 150 days.
View Article and Find Full Text PDFMorphometric examination of hind limb and foot bones and fibre type composition of crus region muscles in quail and pigeon.
Anat Histol Embryol
July 2023
Anatomy Department, Faculty of Veterinary Medicine, Bursa Uludag University, Bursa, Turkey.
In this study, the foot and hind limb bones of pigeons and quails were measured morphometrically. Additionally, microscopic classifications of the muscles affecting the foot and digit joints were made. For the macroscopic inspection, 40 birds were used, including 20 adult quails (10 males, 10 females) and 20 adult pigeons (10 males, 10 females).
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!