ME Varieties with high ME will be more digestible. This will pass through the rumen quicker increasing consumption and production levels. Lower ME levels take longer to process and are slower through the rumen. This is particularly important for rations with a high maize content. Starch This provides the link to cob maturity in the plant. Varieties that are ‘early’ will have more chance of reaching cob maturity, and more starch, than later varieties. High starch varieties are important in rations with low maize inclusion. Maize provides a good source of starch with less risk of acidosis than cereal starch as it has slower fermentation rates. Agronomic factor Total sum of factors – including early vigour; standing power; leaf senescence and eyespot. All values based on an average for both favourable and less favourable sites.
Ag Factor +/- Starch Yield Vs Yield (t/ha)
19
Kompetens
18.5
18
Aurelius
Belami
17.5
Reason
Emblem
SeverusYukon
Kougar
17
Remington
16.5
Sergio
16
15.5
Kaspian
15
14.5
14
15
20
25
30
35
40
Ag Factor +/- Starch Yield
Maize Handbook 2018 06
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