entitle 发表于 2025-3-30 08:15:32
Effect of Early Embryonic Bursectomy on Lymphocyte Differentiation and Maturationium of the bursa was removed from the embryo between 54 and 60 hr of development. Such early embryonically bursectomized chickens have been reported to develop B cells as well as serum immunoglobulins (Ig) (1–7). However, some controversy exists over the ability of these early embryonically bursecto口诀 发表于 2025-3-30 15:34:18
Evidence for the Existence of Two Distinct Types of Peyer’s Patches in Sheepaccount of the “intestinal glands” that are found in all higher vertebrates. The inclusion of sheep in the list of species in which he noted PP was probably as a consequence of one of his other studies on the mechanisms of rumination. The PP in sheep have received attention periodically since that tInstantaneous 发表于 2025-3-30 18:43:18
Evidence of Differences Between Peyer’s Patches and Germinal Centers5 (cited by Schmidt, 1959), there have been changing views on the function of these lymphoid tissues found along the intestinal tract. The first detailed study by Peyer (1677) led to the concept, which survived for almost 2 centuries, that PP were involved in mucous secretion. The attention of the m壮丽的去 发表于 2025-3-30 23:59:50
http://reply.papertrans.cn/64/6333/633230/633230_54.png性冷淡 发表于 2025-3-31 01:25:17
http://reply.papertrans.cn/64/6333/633230/633230_55.png讲个故事逗他 发表于 2025-3-31 08:01:09
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