养犬登记是什么？
饲养犬龄满三个月的犬只，养犬人应当办理养犬登记。[{'character': '饲', 'pinyin': 'sii4', 'highest pitch': 10.09, 'lowest pitch': 8.96, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '养', 'pinyin': 'iang2', 'highest pitch': 11.04, 'lowest pitch': 8.08, 'duration': 0.21, 'prosody hierarchy': '#2'}, {'character': '犬', 'pinyin': 'qvan3', 'highest pitch': 13.01, 'lowest pitch': 5.86, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '龄', 'pinyin': 'ling2', 'highest pitch': 8.86, 'lowest pitch': 5.56, 'duration': 0.26, 'prosody hierarchy': '#2'}, {'character': '满', 'pinyin': 'man3', 'highest pitch': 8.9, 'lowest pitch': 5.02, 'duration': 0.24, 'prosody hierarchy': '#1'}, {'character': '三', 'pinyin': 'san1', 'highest pitch': 10.71, 'lowest pitch': 10.08, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '个', 'pinyin': 'ge5', 'highest pitch': 10.84, 'lowest pitch': 9.38, 'duration': 0.09, 'prosody hierarchy': 'null'}, {'character': '月', 'pinyin': 've4', 'highest pitch': 9.38, 'lowest pitch': 6.74, 'duration': 0.11, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 7.2, 'lowest pitch': 5.96, 'duration': 0.08, 'prosody hierarchy': '#1'}, {'character': '犬', 'pinyin': 'qvan3', 'highest pitch': 13.01, 'lowest pitch': 3.38, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '只', 'pinyin': 'zhiii1', 'highest pitch': 8.31, 'lowest pitch': 8.02, 'duration': 0.26, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.27}, {'character': '养', 'pinyin': 'iang2', 'highest pitch': 11.04, 'lowest pitch': 8.56, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '犬', 'pinyin': 'qvan3', 'highest pitch': 13.01, 'lowest pitch': 6.21, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '人', 'pinyin': 'ren2', 'highest pitch': 8.18, 'lowest pitch': 6.13, 'duration': 0.23, 'prosody hierarchy': '#2'}, {'character': '应', 'pinyin': 'ing1', 'highest pitch': 8.48, 'lowest pitch': 8.09, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '当', 'pinyin': 'dang1', 'highest pitch': 8.81, 'lowest pitch': 8.13, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '办', 'pinyin': 'ban4', 'highest pitch': 9.42, 'lowest pitch': 6.59, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '理', 'pinyin': 'li3', 'highest pitch': 6.59, 'lowest pitch': 3.97, 'duration': 0.18, 'prosody hierarchy': '#2'}, {'character': '养', 'pinyin': 'iang2', 'highest pitch': 11.04, 'lowest pitch': 4.3, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '犬', 'pinyin': 'qvan3', 'highest pitch': 13.01, 'lowest pitch': 3.47, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '登', 'pinyin': 'deng1', 'highest pitch': 9.7, 'lowest pitch': 7.68, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '记', 'pinyin': 'ji4', 'highest pitch': 10.32, 'lowest pitch': 6.5, 'duration': 0.24, 'prosody hierarchy': '#4'}]