ILCA BULLETIN

No. 23–January 1986

Table of Content

Productivity of N'Dama and N'Dama x Sahiwal cattle in Sierra Leone

Effect of diet restriction on working oxen

Agro-ecological zonation

Animal breeding and productivity studies in Africa

The ILCA Bulletin is a quarterly publication of the International Livestock Centre for Africa. It provides an up-to-date account of aspects of the Centre's work. Contributions to the Bulletin are invited from other livestock researchers in Africa whose work is closely associated with that of ILCA. The ILCA Bulletin is distributed to 1500 researchers, policy makers, donors and extension agents throughout sub-Saharan Africa and elsewhere in the world.

ILCA is one of 13 international centres for agricultural research whose work is funded by the Consultative Group on International Agricultural Research (CGIAR). The 13 centres have been established by the CGIAR to provide long-term support for agricultural development in the Third World.

Table of Contents

Preface

N'Dama cattle productivity at Teko Livestock Station, Sierra Leone, and initial results from cross-breeding with Sahiwal

Effect of diet restriction on work performance and weight loss of local Zebu and Friesian x Boran crossbred oxen

Determination of agro-ecological zones in Africa: ILCA activities and expectations

Animal breeding and productivity studies in Africa

List of abbreviations