INTRODUCTION

Through out history, hunting and gathering has been man’s major occupational activity, and later man began to think of how to produce food, rear livestock as well as engaging in commercial activities. However, food production and rearing of animal in most developing countries is done largely at subsistence level. Agricultural activities such as food production, rearing of animals as well as commercial activities is the mainstay of the economy of the most developing countries. Nigeria has a population of 150 million people, the largest in Africa and a fast growing economy. Agricultural growth in Nigeria is increasingly recognized to be central to sustained improvement in economic development. Agriculture contributed about 45 percent of the gross domestic product (GDP). Agriculture sector employs about two thirds of the country’s total labour force and provides a livelihood for about 90 percent of the rural population.