Acta Scientific Agriculture (ASAG)(ISSN: 2581-365X)

Research Article Volume 5 Issue 10

Analysis of Variance in Food Preference For Enhanced Captive Rearing of Crocodilus nilotica

John A Ogbodo1*, Mike T Iwar2 and Mohammed Adeyemi1

1Department of Forestry and Wildlife, Nnamdi Azikiwe University, Awka, Nigeria
2Department of Wildlife and Range Management, Federal University of Agriculture Makurdi, Nigeria

*Corresponding Author: John A Ogbodo, Department of Forestry and Wildlife, Nnamdi Azikiwe University, Awka, Nigeria.

Received: July 14, 2021; Published: September 15, 2021


  Crocodilus nilotica (Nile crocodiles) play important roles in maintaining ecosystem structures and functions in the World. However, crocodiles are among the many aquatic wildlife species that risk extinction because of the high demand of their skins and flesh in both local and international markets. Captive rearing of Nile crocodile (Crocodilus niloticus) could contribute to their sustainable populations and consumption by both present and future human generations. The overall objective of this study was to determine the alternative food preference of Nile crocodiles towards enhancing their captive rearing for increased populations. The feeding behaviour of four Nile crocodiles (Crocodylus niloticus) comprising of three juveniles (six-month old) and one adult (26-month-old) was observed for a period of eight weeks in captivity. The three juveniles had average body weight of 44g each (23.50 cm long) and the sub-adult weighed 108g with 34 cm body length). The Nile crocodiles were randomly placed in four treatments (plastic tanks): E1, E2, E3 and E4. They were fed on four animal protein diets: (a) poultry offal; (b) lizard meat; (c) toad meat; and (d) a balanced mixture of: a, b, and c sources. Feeding was done twice per week: morning - the first day; and evening - the second day in the treatment week. The amounts of diets introduced and consumed during treatments were weighed every two hours of experimentation. Diet and consumption time analyses were performed (in mean ± standard deviation) and the outcomes were further subjected to a one-way Analysis of Variance (ANOVA) statistics. The results show that the diets supplied were consumed at the average total rates of 589.20g ± 8.288 (lizard meat), 574.50g ± 16.903 (toad meat) and 434.20 ± 17.168 (poultry offal). There were no significant differences among treatment effects and in the time of consumption at confident levels of 0.05 and 0.01; 0.05, respectively. This study concludes that poultry intestines are strange to Nile crocodiles while lizard meat is the most preferred animal protein and followed by toad meat during the captive rearing of Nile crocodiles. The study recommends that poultry offal should be used as food supplements smallholder and commercial rearing of Nile crocodiles for improved productivity and social livelihoods.

Keywords: Alternative Diet; Crocodilus nilotica; Captive Rearing; Consumption Time; Feeding Treatment.


  1. Grenard S. “Handbook of alligators and crocodiles”. Krieger Publishing co. Malabar, Flridda (1991): 107-150.
  2. Caldwell John. “World trade in crocodilian skins 2006 - 2008”. United Nations Environment Programme World Conservation Monitoring Center (UNEP-WCMC). Cambridge (2010): 35.
  3. Robbins CT. “Wildlife feeding and nutrition (2nd ed.)”. Academic press Inc. London (1992): 30.
  4. Britton A. “Distribution of Crocodylus niloticus”. African Journal of Wildlife (2012).
  5. Nile crocodile (1996).
  6. Decree No 11 of 1985 (Now cap 108, 1990) Laws of the Federation of Nigeria Endangered species”. In: Legal framework for animal rights and game management in Nigeria (1990).
  7. Cott HB and Pooley AC. “Crocodiles - the status of crocodiles in Africa”. 2 (1972): 104.
  8. Abah Roland Clement. “An application of geographic information system in mapping flood risk zones in a north central city in Nigeria”. African Journal of Environmental Science and Technology6(2013): 365-371.
  9. Makurdi, Benue State (2015).
  10. com. Latitude and longitude of Makurdi, Benue State (2015).
  11. FAO - Food and Agricultural Organization. “The management of crocodiles in captivity”. FAO conservation guide. Rome 22 (1989): 1-43.
  12. Mopurgo B., et al. “Food preference and fish atractibility of young Nile crocodiles”. In: 10th Proceeding of the Crocodilian Society. Gainsville. International Union of Conservation of Nature (IUCN) 2 (1990): 70-80.
  13. Karen Higginbottom. “Wildlife tourism: impacts, management and planning”. Common Ground Publishing Pty Ltd. Altona Vic 3018. Australia (2004): 301.
  14. “Can you smile at crocodile? Report on St. Augustine’s Alligator farm and zoological garden”. India (2005): 11-13.
  15. Pooley AC and Gans C. “Nile crocodile”. American Crocodilian Society 4 (1976): 234-144.


Citation: John A Ogbodo., et al. “Analysis of Variance in Food Preference For Enhanced Captive Rearing of Crocodilus nilotica". Acta Scientific Agriculture 5.10 (2021): 05-11.


Copyright: © 2021 John A Ogbodo., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


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