Economic Evaluation of Breeding Objectives for Milk and Beef Production in Tropical Environments

Economic Evaluation of Breeding Objectives for Milk and Beef Production in Temperate Zones

Intensive milk and beef production is COIlIIlPn to the European agricultural due to a high density of population. Milk and beef traits are involved in breeding objectives of dual-purpose cattle. Various dual-purpose cattle populations cover a wide range of economic ting of milk and beef. The optimal weights of milk and beef characters on the marginal change in profit, and the time and nUIlber o...

Feed Intake Specifications in Defining Breeding Objectives

SUMMARY Development of selection objectives for beef cattle requires tion of the available feed resources. In production systems \Ji th to li~eral quantities of harvested feeds of relatively high quality to improve economic eff iciency ~lill normally favor animals ~li th high potentials for the primary production traits. Hovlever , these highly types may also have relatively high maintenance re...

Importance of adaptation and genotype × environment interactions in tropical beef breeding systems.

This paper examines the relative importance of productive and adaptive traits in beef breeding systems based on Bos taurus and tropically adapted breeds across temperate and (sub)tropical environments. In the (sub)tropics, differences that exist between breeds in temperate environments are masked by the effects of environmental stressors. Hence in tropical environments, breeds are best categori...

Economic Evaluation of Breeding Objectives in Dairy Cattle. Intensive Specialized Milk Production in Temerate Zones

Evaluation and Utilization of Tropical Breeds for Efficient Beef Production in the Tropics: Challenges and Opportunities

SUMMARY. results bet\'.Ben tropical breeds and european beef breeds ~sbreed~~eed (mainly Zebu) genetic variability for some economically as W~~ is revie\'.Bd. Heterosis of between 9% to 11% has been reported t tra~ts owth rate, 2% to 11% for p09t\'.Ban~g and carcass traits as ~~g1~ for reproduction related tralts lD crosses lDvolvlDg 80s • ~ to t urus cattle. Maximum heterosis was observed in c...