BCP Test 3 Flashcards
Terminal crossbreeding systems
Two-Breed terminal crossbreeding, Three-Breed terminal crossbreeding,
describe F1 calves
Calves are very uniform and productive. They have heterosis.
describe Three breed terminal crossbreeding
same as a crossbred but the F1 generation will be partly kept as replacements and bred for purely terminal calves.
Breeds used in mating systems should be based on the following:
Productivity and adaptability for the production environment. Marketability, Heterosis, availability and cost.
Angus
Black hide, british breed, polled, good carcass. Lower adaptability
Beefmaster
American Breed, brahman, shorthorn, Hereford. Ability to reproduce and live in tough places and milk.
Braford
American breed. Great growth and carcass. Poor disposition and later maturing.
Brahman
American, Nelore, Krishna valley, Buzerate, gir. Gray color, Longevity, heat tolerant. Mothering and dressing percentage.
Brangus
American, 5/8 angus. excellent growht, calf marketbaility .
Charolais
Contenital breed, came from france, Rapid growth
Hereford
Red Body and white face. Most recognized range breed. Fertilty, temperament, growth and quality. Increased health probs and calving difficulty.
Longhorn
American breed, live forever, longevity and fertility, . bad carcass and marketability.
Simmental
exotic breed, growth potential, bad calving ease,
What percent of cattle will be implanted before weaning
15-25%
50% of calves are born in what three months
february, march or april