中国畜牧兽医2023，Vol.50Issue(12)：4917-4924,8.DOI:10.16431/j.cnki.1671-7236.2023.12.014
三河牛味蕾和牛舌乳头分布及形态特征研究
Study on the Distribution and Morphological Characteristics of Lingual Papillae and Taste Buds in Sanhe Cattle
摘要
Abstract
[Objective]The objective of this study was to investigate the distribution of fungiform and circumvallate papillae on the tongue of Sanhe cattle,the differences in the amount and morphology of taste buds on the two types of papillae.[Method]Five 20-month-old and two 32-month-old Sanhe bulls from Hulun Buir,Inner Mongolia,China,were used in this study.The fungiform and circumvallate papillae on the tongue were recorded and counted.In addition,one of the tongue was divided into four regions:The torus linguae region,the lingual posterior region,the lingual middle region,and the apex linguae region.After sampling in different regions,the fungiform papillae,circumvallate papillae and their taste buds were observed using hematoxylin-eosin staining method.In total,1 233 complete serial tissue slices were made,and taste bud of 32 fungiform papillae and 4 circumvallate papillae were found by the serial tissue slices.[Result]The average total length of the cattle tongue was 34.4 cm,the average width was 8.5 cm,and the average length of the torus linguae region of the tongue was 15.4 cm.The distribution of fungiform and circumvallate papillae on both sides of the tongues were similar.There were a large number of fungiform papillae,with an average of 155,mainly distributed in all areas from the apex linguae on the dorsal side of the tongue to the anterior part of the torus linguae,as well as the lateral and ventral sides of the apex linguae,showing a distribution pattern of dense anterior and sparse posterior.For the single fungiform papilla from the apex linguae to the torus linguae of the tongue,the number and density of taste buds gradually decreased,with an average of 5.1 taste buds.The number of circumvallate papillae was relatively small,with an average of 25,mainly distributed on both sides of the posterior part of the torus linguae,but the density of taste buds in a single circumvallate papilla was higher than that of the fungiform papilla,with an average number of taste buds of 524.8.Through slice observation,mushroom-shaped fungiform papillae protruded from the surface of the tongue,with wider circumvallate papillae than the fungiform papillae and a moat around them.[Conclusion]The distribution characteristics of lingual papillae was basically the same on both sides and the density of taste buds in circumvallate papilla was higher than that of the fungiform papilla in Sanhe cattle.It could provide prospective insights and basic information for taste physiology research.关键词
牛舌/舌乳头/味蕾/三河牛Key words
cattle tongue/lingual papillae/taste bud/Sanhe cattle分类
农业科技引用本文复制引用
李佳伟,王雅春..三河牛味蕾和牛舌乳头分布及形态特征研究[J].中国畜牧兽医,2023,50(12):4917-4924,8.基金项目
国家现代农业产业技术体系(CARS-36) （CARS-36）
长江学者和创新团队发展计划(IRT_15R62) （IRT_15R62）
中央高校基本科研业务费专项资金项目(X2022100190035) （X2022100190035）
