Again in 1991, same pair of rhino bred again and one more female rhino was added in the list. The first two rhino of this park named Kancha and Kanchi finally lead to the birth of one male rhino in the year 1993. This showed that all rhino of this park are potential breeder.
Hartali the first rhino calf of this park has produced eight calf till date and she considered to be one of the most successful breeding female as far as captive breeding in rhino is concerned.
Park management is very sensitive towards inbreeding of rhino. So, to improve genetic diversity one male rhino 'Ayodhya' and one female rhino 'Gari' were brought to this Park under animal exchange programme from Delhi Zoo and San diago Zoo, U.S.A. respectively. Sanjay Gandhi Biological Park, Patna has provided rhino to Delhi, Kanpur, Ranchi, Hyderabad zoo and country like U.S.A. At present Sanjay Gandhi Biological Park, have 5 male and 5 female rhinos.
Park management is always striving to sustain the captive one horned rhino population by providing natural environment in the form of muddy moat area, clean night house, etc.
Deer mesh - 6.30 Kgs,
Gram- 1.40 Kgs
Wheat- 1.20 kgs.
Wheat flour- 0.85 Kg.
Bhusa- 11.5 Kgs.
Sudan/ Berseem grass- 40.00 Kgs.
Sugar cane (November to February) - 15.00 Kgs.
Banana- 0.750 Kg.
Besan- 0.400 Kg.
Moong- 0.50 gm.
Bran- 0.500 Kg.
Per animal per day.
It is standard diet and it varies with season to season.