Received: 18 June 2020
Accepted: 1 October 2020
First Online: 9 October 2020
Ethics approval and consent to participate
: The study was approved by the Minisrty of Livestock and Fisheries, Republic of Zambia. Sampling was carried out under the owners consent.
: Publication approved by the Ministry of Fisheries and Livestock, Lusaka, Republic of Zambia..
: All authors declared that they have no competing interests.