Mahanta, J D, A Ramakrishnan, A Jalaludeen, and B Jose. 2012. “Polymorphism of Blood Serum Transferrin and Post-Transferrin and Certain Production Traits in Indigenous Ducks in Kerala *”. The Indian Journal of Animal Sciences 69 (12). https://epubs.icar.org.in/index.php/IJAnS/article/view/22028.