<p>The cause of their death on Friday was mentioned in the interim post-mortem report submitted by the zoo authority, special secretary of Forest Department B P Singh said.<br /><br />Eleven-year-old Priyanka, which gave birth to five cubs including a white one on Wednesday, reportedly rejected them, the report said.<br /><br />"There was no food in the stomach of three cubs while intestinal pipes of two others had ruptured," the post-mortem report said.<br /><br />The Forest and Environment Department, however, asked the Principal Chief Conservator of Forest (wildlife) to undertake a detailed probe into the incident and report on whether captive breeding had taken place according to the guidelines of the Central Zoo Authority.<br /><br />Deputy director of Nandankanan Zoo S N Mohapatra said cubs die mostly due to less secretion of milk from a first-time mother.<br /><br />It was almost after 11 years that a normal Royal Bengal Tiger couple had given birth to a white cub at Nandankanan, he said.<br /><br />While Priyanka was born to a white tiger, her mate Rohan had a white tigress as his mother. "Therefore, the couple was chosen for captive breeding here," he said.<br />The tiger population in Nandankanan Zoo was 24, including 10 white ones, sources said.</p>.<p>The rate of survival of the cubs born in captivity to new tiger mothers had been less than 10 per cent.<br /><br />The Central Zoo Authority had stopped captive breeding since 2000 after 12 tigers had died at Nandankanan Zoo. </p>
<p>The cause of their death on Friday was mentioned in the interim post-mortem report submitted by the zoo authority, special secretary of Forest Department B P Singh said.<br /><br />Eleven-year-old Priyanka, which gave birth to five cubs including a white one on Wednesday, reportedly rejected them, the report said.<br /><br />"There was no food in the stomach of three cubs while intestinal pipes of two others had ruptured," the post-mortem report said.<br /><br />The Forest and Environment Department, however, asked the Principal Chief Conservator of Forest (wildlife) to undertake a detailed probe into the incident and report on whether captive breeding had taken place according to the guidelines of the Central Zoo Authority.<br /><br />Deputy director of Nandankanan Zoo S N Mohapatra said cubs die mostly due to less secretion of milk from a first-time mother.<br /><br />It was almost after 11 years that a normal Royal Bengal Tiger couple had given birth to a white cub at Nandankanan, he said.<br /><br />While Priyanka was born to a white tiger, her mate Rohan had a white tigress as his mother. "Therefore, the couple was chosen for captive breeding here," he said.<br />The tiger population in Nandankanan Zoo was 24, including 10 white ones, sources said.</p>.<p>The rate of survival of the cubs born in captivity to new tiger mothers had been less than 10 per cent.<br /><br />The Central Zoo Authority had stopped captive breeding since 2000 after 12 tigers had died at Nandankanan Zoo. </p>