藏獒的视力、味觉和触觉　　(一)藏獒的视力
　　虽然有诸多资料说明犬的视力与其嗅觉和听觉相比不很发达，但由于生活环境严酷和险峻，使藏獒的视觉器官亦得到了相对的锻炼。草原上的藏獒能清楚的分辨出300米外的主人或生人，对活动目标的视力距离可以达到1000米以上。夏天，在无边无垠的草原上，牛羊随心所欲，一边吃草一边走动，都在藏獒的视野范围之内。一旦有牛羊走出自家地界，藏獒会即刻将其逐回，一旦有野兽在隐蔽中接近畜群，藏獒会毫不迟疑勇猛出击。藏獒头大额宽，视野开阔，全景视野为250°-290°，单眼的左右视野为125°～145°，上方视野为50°-70°，下方视野为30°-60°，对前方的物体看得最清楚。当藏獒雄居于山岗时，绿波荡漾的草原、炊烟袅袅的毡房、自由采食的牛羊都尽收眼底。但藏獒的视力与其他犬科动物类同，其视觉是色盲。在藏獒眼里，色彩斑斓、五彩缤纷的大草原其实只有黑白两种颜色。因此，藏獒只是依靠明暗度来区别或辨别物体，并对移动的物体更易发现。不同之处是藏獒暗视力很强，善于在夜间捕食。这与藏獒大都是白天被拴系，夜晚被放开巡视草场、看护牛羊或猎取食物的半野性生活方式有直接的关系。
　　(二)藏獒的味觉
　　藏獒的味觉器官位于舌面，但比较迟钝。长期以来，藏獒已形成吃食粗糙、狼吞虎咽的习惯。由于嗅觉灵敏，藏獒感兴趣于有臭味的畜肉，有甜味的食物，却厌恶酸辣食物，并对酒精等醇类物质非常敏感。因此，藏獒对食物的选择，是依靠嗅觉和味觉的双重作用决定的。藏獒吃食粗糙，具有其野生的特征，或者说是犬科动物的共性，是在野生环境下迫于生存而形成的适应性。但是，藏獒胃中盐酸含量达到0.4%-0.6%,pH值达到4.2，藏獒又具有消化道逆向蠕动的特点，完全可以防止由于味觉迟钝摄食粗糙对犬体所可能造成的不适。
　　(三)藏獒的触觉
　　藏獒的触角觉器官非常发达，诸如位于其唇部的触毛，颜面和眉间的刚毛及趾底的感触能力都非常灵敏。藏獒无论是在捕食、格斗、探究或学习中，都与其触觉器官有密切的关系。藏獒灵敏的触觉器官是其神经系统高度发育的结果，也是在世界最严酷的自然环境中生物进化的结果，说明藏獒作为“东方神犬”是当之无愧的。
　　藏獒汗腺亦不发达，主要依靠调整呼吸频率，增加或减少呼吸蒸发，使之在环境气温的变化中努力保持体温恒定与健康水平。事实上，对藏葵而言，更为突出的问题首先是保存体温，不使在年平均气温低于。℃的特殊环境下过度散失体热而影响健康。因此，藏獒不仅皮肤汗腺极不发达，而且还具有双层被毛的品种特征，有别于国内其他犬品种。
　　

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