Classification of slaughtered animals and estimation of body condition scores during rainy season in Sokoto abattoir

Abstract

The animals slaughtered at the Sokoto City Abattoir in Northwestern Nigeria from 5^th June to 6^th August 2010 were classified based on body condition scores (BCS) and other variables. A total of 6215 animals (cattle, sheep, goats and camels) were slaughtered with wide disparities in body conditions. Cattle remain the predominant animal slaughtered (67.74%) with the least predominant animal being camel (5.41%). The majority (80.80%) of the large ruminant slaughtered were in borderline to optimum (3-4) body condition while the majority of small ruminant (81.73%) primarily fell into the optimum (2-3) body conditions at slaughter. Multivariable ordered logistic regression analysis revealed that BCS as an estimated outcome is based principally on seasons with the beginning of rains (June) being the most critical. Since the study was undertaken at the beginning to middle of rainy season, it is expected that the animals are just recovering from the stress of previous dry season and scarcity of feed resources, this support the result from the analysis. Additional factors may contribute to differences in BCS of slaughtered animals are not evaluated in this study due to limitation of data collection, and future useful data may be generated by implementing a more comprehensive data recording system for slaughter statistics and research at the Nigerian abattoirs.

Keywords: Abattoir, Body condition score, Nigeria, Ordinal model, Rainy season, Slaughtered animals