#!/bin/bash
s='    DOG; CSQ| 0.1234 | abcd | \t CAT
    DOG; CSQ| 0.1234 | abcd | 0 \t CAT
    DOG; CSQ| 0.1234 | abcd | 0.9187 \t CAT'
echo "$s"
sed 's/CSQ.*|.*\\t//' <<< "$s"