推荐回答（4个）
贵宾的色本来就是会随着时间的改变而改变的。红贵宾小时候基因是不稳定的..红贵宾大多会退色的，有的会变回来，还会更红，可有的淡了就淡下去了，都是正常的。也有的可能会退成香宾色(注意是可能)如果再过一个月左右没红回来...就可能是杏色或香宾色贵宾。
因为贵宾的色是会不停的在改变的.一般都是越来越深的颜色，基本上是根据底毛的颜色变得，如果营养跟上,还是褪色,那就是基因问题。海藻粉有促进色素沉着的功能，对毛发发育有好处可以吃一些。
但是我家金刚是越T越红...3个月大的时候``就是我男友把它刚接回来的时候已经退成浅杏色了，只有耳朵是深杏色的。我还有点郁闷，觉得颜色太浅。后来恶补知识，换了好狗粮，再每天牛肉棒牛肉肠耨肉棍牛肉菜棒钙奶棒，发育宝，鸡蛋黄来大补，现在变成深杏色了。很漂亮。（贵宾不适合吃浅色的肉类和食物，色素会不稳定。肌肉羊肉千万不能吃，会变白白）
你说毛根开始变浅，这个应该就是色素的的沉淀问题.红贵需要多晒晒太阳..巩固色素。同时建议吃点美毛的粮看看（现在太小，6个月后才适合吃美毛粉）。其实你要注意毛量和光泽度，颜色这个东西没法挑的。如果毛变枯燥无光泽。那就是是现在的狗粮不行，要换了。营养不良也会退色，千万别饿着宝宝。
我觉得我家金刚过去在狗贩可能吃得不好，现在营养跟上了，毛色就好些。变成深杏色了。你家狗狗是从一出生就养的，还是刚买回来的？如果刚到你们家1个月左右的话，会不会是因为你换了食物，或营养没跟上而引起的？？如果是这样，可能问一下前主人过去给他吃什么食物或者狗粮。如果都不是，那就是红贵自然退色了，现在可以吃蛋黄，等大一点儿买海藻粉吧，可能会有效果。
现在4个月了，适合剃毛。你把中间和毛尖的毛毛剪掉..然后留毛根.然后会一直长.贵宾是要不停的修剪的..才会好看..金刚5个多月才剃毛的，新长的颜色越来越深了。
还有建议.如果你家的毛色掺差不同的色.可以选择剃光.然后重新长，重新长出来的毛毛会很漂亮很卷。但同时剃过毛后长出来的浅了，就是香槟色了。
当然，不得不说，最坏的打算：如果越来越浅了那应该是买到了染色的狗狗，买的时候要注意一下毛根的颜色的。
希望楼主的宝贝健康快乐。
是不是你买的时候被人骗了~
是不是被狗贩子染了色得？
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