[讨论]狗狗一般几岁开始衰老（算高龄）
有没有什么办法能让狗狗减缓衰老呢 <P>给你提供一个人类和犬的年龄换算表:</P><P 0cm 0cm 0pt">把犬的年龄换算为人们的年龄的方法有若干种，<FONT face="Times New Roman"> </FONT>在这里提供一个犬和人的年龄换算表<FONT face="Times New Roman"> </FONT></P>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center>犬</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center>人</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center>犬</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center>人</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center>犬</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center>人</P></TD></TR>
<TR 1">
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">20</FONT>天</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">1</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">3</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">28.5</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">12</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">69</FONT>岁</P></TD></TR>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">60</FONT>天</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">3</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">4</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">33</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">14</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">78</FONT>岁</P></TD></TR>
<TR 3">
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">100</FONT>天</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">5</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">6</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">42</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">16</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">87</FONT>岁</P></TD></TR>
<TR 4">
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">1</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">18</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">8</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">51</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">18</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">96</FONT>岁</P></TD></TR>
<TR 5; mso-yfti-lastrow: yes">
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">2</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">24</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">10</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">60</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">20</FONT>岁</P></TD>
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<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman">105</FONT>岁</P></TD></TR></TABLE></DIV> <p>另外提供一个年龄与牙齿的参考</p><p>犬的年龄，主要以犬牙齿的生长情况、齿峰及牙齿的磨损程度、外形、颜色等综合判定，为了便于掌握，现将犬的齿试介绍如下： <br/>成年犬的牙齿共42枚 <br/>幼犬的牙齿共28枚 <br/>20天————左右开始长牙 <br/>4-6周龄———乳门牙长齐。近两月龄时，乳牙全部长齐，呈白色，细而尖。 <br/>2-4月龄———更换第一乳门齿 <br/>5-6月龄———换第二三乳门齿及乳犬牙 <br/>8月龄以后——全部换上恒齿 <br/>1岁 ————恒齿长齐，洁白光亮，门齿上部有尖凸 <br/>1.5岁————下颌第二门齿大尖峰，磨损至小尖峰平齐，此现象称为尖峰磨灭 <br/>2.5岁————下颌第二门齿尖峰磨灭 <br/>3.5岁————上颌第一门齿尖峰磨灭 <br/>4.5岁————上颌第二门齿尖峰磨灭 <br/>5岁 ————下颌第三门齿尖峰稍磨损，下颌第一二门齿磨损面为距形 <br/>6岁 ————下颌第三齿尖磨灭，犬齿钝圆 <br/>7岁 ————下颌第一门齿磨损至齿根部，磨损面为纵椭圆型 <br/>8岁 ————下颌第一门齿磨损面向前方倾斜 <br/>10岁 ————下颌第二及上颌第一门齿磨损面呈纵椭圆形 <br/>10-16岁————门齿脱落犬齿不齐<br/></p> <p>收到</p> <p>学习哦~嘿嘿。。</p> 我家狗狗应该算5岁的小孩了，哈哈 我来顶！
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