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カテゴリー全て - traits - management - systems - design

によって Garrett Butler 11年前.

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crossbreading cattle

crossbreading cattle

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Door Ergonomics (PE1)

Door Ergonomics (PE1)

Darren Smithにより

My Battle with Ego

My Battle with Ego

Colin Robertsonにより

Chapter 1

Chapter 1

Jaeger Thompsonにより

Mendel and his peas

Mendel and his peas

Agustin Sarmientoにより

Crossbreeding Beef Cattle

other considerations

other important traits

frame score

Why crossbreed?

Heterosis

Hybrid vigor

sire selection

Crossbreeding systems

different systems

criss cross

rotational cross

terminal cross

combined

design

ease of management

simplicity

challenges