中国黄羽鹌鹑胸腺发育的增龄变化

doi:10.11843/j.issn.0366-6964.2019.03.021

Abstract

Abstract:

This study was aimed to investigate the morphology, histological structure and development of the thymus of the Chinese yellow quail at different ages, and to provide morphological basis for the establishment of immune program during the growth of yellow quail. The thymus index, histological structure and ultrastructure of thymus of yellow quail from birth to 38 weeks old were studied by anatomical, histological and electron microscopy techniques. The results were follows:the weight, index, length and diameter of thymus gradually increased with age, reaching a maximum for each of these measurements at the age of 4 weeks, decreased between 5 and 9 weeks of age and then remained unchanged between 10 and 38 weeks of age. Cortex area/medullar area was gradually decreased with the age. The number of Hassall's corpuscle was gradually increased with age, reaching a maximum at the age of 6 weeks and then decreased with age. Electron microscope observation showed that:the natural apoptosis was found in thymocyte. The main changes of apoptotic cells appeared in nucleus. The chromatin were condenses. The proliferation of mitochondria happened to apoptotic cells. It was seen that a sustained developmental period occurred at 0-4 weeks of age, a maturation period occurred at 5-9 weeks, a involution period occurred at 10-38 weeks during the development of quail thymus.

CLC Number:

S852.162

Lü Yingying, HE Min, ZHAO Piao, WEI Jingjing. Age-related Changes in the Development of Thymus of Chinese Yellow Feather Quails[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2019, 50(3): 654-662.

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Age-related Changes in the Development of Thymus of Chinese Yellow Feather Quails

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