|
|
Histological observation of head kidney and spleen of juvenile Oncorhynchus keta before release
LI Pei-lun, LIU Wei, LU Wan-qiao, TANG Fu-jiang, WANG Ji-long
HUBEI AGRICULTURAL SCIENCES
2022, 61 (12):
116-119.
DOI: 10.14088/j.cnki.issn0439-8114.2022.12.023
By understanding the characteristics of the immune organs of chum salmon, it provided a research basis for exploring the immune response mechanism of the released juvenile chum salmon during the breeding process. The anatomy and conventional histological techniques were used to observe and study the head kidney and spleen of juvenile chum salmon before release. The results showed that the head kidney was located on the back of the esophagus, above the pharyngeal retractor muscle in the thoracic cavity, and the surface was covered with a dense connective tissue capsule. The head kidney contained vestigial renal tubules, and it was in the mixed urinary and immune function stage, and the head kidney was full of lymphocytes, granulocytes, blood cells and melanin-macrophages, with a distinct melanin-macrophage center. The spleen was located below the stomach tissue, the back of the middle intestine, and the surface was smooth and reddish brown. The spleen outer layer was wrapped by a membrane, and the substance was composed of vaguely arranged red pulp and white pulp. The central venous and arterial blood vessels in the spleen were abundant. The red pulp contained sinusoids formed by a large number of blood cells, while the white pulp was filled with a large number of lymphocytes and granulocytes.The melanin macrophages were scattered in the spleenand the melanin macrophages center was obvious. The head kidney and spleen of the juvenile chum salmon had the strong hematopoietic and immune functions before release.
Reference |
Related Articles |
Metrics
|
|
