Improving Cattle for Milk, Meat and Traction

Addis Ababa Agricultural analysis of variance animals anoestrus Boran Bos indicus bran breed bulls calculated calving cattle Centre for Africa Charray conception constraints corpus luteum costs cottonseed cake cows crop residues crossbred diet digestibility diseases dry season effect embryo transfer Ethiopia Ethiopian highlands evaluation example factors farmers farming systems farming systems research feed fertilisation fertility Figure fodder bank follicle forage grazing heat heifers highlands ILCA International Livestock ILRI improve increase intake International Livestock Centre lactation lambs legumes livestock Livestock farming systems livestock systems maresha mean methods module molasses nitrogen nutrients nutrition oestrous cycle oestrus on-farm outputs ovulation pastoralists ploughing post-partum poster pregnancy problems production systems progesterone protein protocol reading materials References and reading reproductive rumen ruminant sample smallholder sperm standard error sub-Saharan Africa supplementation Table techniques treatment variables Vertisols weight gain zebu zone