Received: 15 May 2019
Accepted: 3 October 2019
First Online: 10 December 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: This article does not contain any experimental studies with animals performed by any of the authors. The fecal samples were collected from live animals after the informed consent from the rightful owners of the animals. The samples from dead animals were collected at post-mortem facility of Indian Veterinary Research Institute where they were presented for post-mortem examination with written requests.