Júnior Carlos Magno Oliveira, Júnior Hélio Noberto de Araújo, Tertulino Moisés Dantas, Guerra Ricardo Romão, Rola Luciana Diniz, Silva Alexandre Rodrigues da, Moura Carlos Eduardo Bezerra de, Oliveira Moacir Franco de
Instituto Federal de Educação, Ciência e Tecnologia do Ceará, Campus Fortaleza, Fortaleza 60115-222, Brazil.
Programa de Pós-Graduação em Ciência Animal, Universidade Estadual do Ceará, Fortaleza 60714-903, Brazil.
Animals (Basel). 2024 Oct 8;14(19):2891. doi: 10.3390/ani14192891.
This work aims to study the major salivary gland morphology of peccaries during their growth. The glands were analyzed using macroscopic description, light microscopy, electron microscopy, histochemistry, and immunohistochemistry. Topographically, the salivary glands resemble other animals, including domestic animals and pigs. During growth, the parotid enlarges and mandibular gland loses weight. Histologically, the parotid has serous production, and sublingual has mucous production, resembles most species, however, mandibular gland produces mucous, unlike other animals, including pigs, which produce seromucous secretion. Histochemically, parotid produces more acidic mucins than pigs and it undergoes maturation during development; mandibular, and especially the sublingual gland, produce more acidic and basic mucopolysaccharides than pigs. The results found with transmission and scanning electron microscopy techniques corroborate the histological and histochemistry findings. The major salivary glands were positive to different lecithins (Com-A, BSA-I-B, WGA and PNA), which were also more positive than in pigs and sheep. We conclude that collared peccaries have a salivary secretion that facilitates the digestion of carbohydrates, and biometric characteristics and positivity to lecithins that facilitate adaptation to foods with antinutritional factors.
这项工作旨在研究西猯生长过程中主要唾液腺的形态。使用宏观描述、光学显微镜、电子显微镜、组织化学和免疫组织化学对腺体进行分析。从地形学上看，唾液腺与其他动物相似，包括家畜和猪。在生长过程中，腮腺增大而下颌腺重量减轻。组织学上，腮腺产生浆液，舌下腺产生黏液，这与大多数物种相似，然而，下颌腺产生黏液，这与包括猪在内的其他动物不同，猪产生浆液性黏液分泌物。组织化学上，腮腺产生的酸性黏蛋白比猪多，并且在发育过程中会成熟；下颌腺，尤其是舌下腺，产生的酸性和碱性黏多糖比猪多。透射和扫描电子显微镜技术的结果证实了组织学和组织化学的发现。主要唾液腺对不同的凝集素（伴刀豆球蛋白A、牛血清白蛋白I-B、麦胚凝集素和花生凝集素）呈阳性，并且比猪和羊的阳性程度更高。我们得出结论，领西猯的唾液分泌有助于碳水化合物的消化，其生物特征和对凝集素的阳性反应有助于适应含有抗营养因子的食物。
