Table 1.

Herd structure, breed, management system and reproductive status of cattle sampled from three states of Northern Nigeria

Variables and categories	Total	Proportion of group (%)
Herd structure
Bulls	602	6.0
Heifers	1,134	11.3
Cows	3,068	30.4
Bull calves and growers	1,285	12.8
Young bulls	1,038	10.3
Heifer calves and growers	1,276	12.7
Young heifers	1,663	16.5
Totala	10,066
Breed
Bunaji	3,097	64.4
Gudali	870	18.1
Other Bos indicus	448	9.3
Bos taurus	120	2.5
B. taurus x B. indicus	272	5.7
Totalb	4,807
Management system
Pastoral	1,263	26.3
Agro-pastoral	2,793	58.1
Commercial	650	13.5
Zero-grazing	101	2.1
Totalb	4,807
Reproductive status
Suckling	1,818	43.3
Non-pregnant	1,545	36.8
Cyclic	609	14.5
Non-cyclic	936	22.3
Pregnant	273	6.5
Non-Suckling	2,384	56.7
Non-pregnant	1,290	30.7
Pregnant	1,094	26.0
Totalc	4,202

^aTotal number of animals in the sampled herds.

^bNumber of mature animals.

^cNumber of mature females.