11 Agricultural Science T2 Week 2

EBV+ Breeding

Crossbreeding

mating of two or more breeds for desired traits, eg. Angus+ Hereford for rounder beef

Linebreeding

selective breeding for desired feature in closely related animals, eg. Holstein+ Friesian for good milk

Continuous

breeding all year round for desired trait, eg. Leghorn+ Sussex for great eggs all year

Seasonal

certain breeding times, this decreases mortality rates in newborns like Dorset sheep.

Breed Plans

systematic approach, improvement and identifying traits, breeding based off genetic potential and progress overtime

EBVs

increase production trait, enable better decisions, best genetics, achieve breeding goals, but it is expensive, time consuming and professional needed

Cow Dairy

increase milk volume

Cow Meat

increase marbling and fat

Chook Eggs

increase number of eggs

Chook Meat

increase chook weight

Sheep Wool

increase quality of fleece and weight

Sheep Meat

increase fertility rate in twin lambs

Goats

temperament

Best

birthweight=0, calving (-,) carcase (+,) marbelling (+,) and flight time (+)