Alaska Forage Manual - Alaska Plant Materials Center - State of ...

Appendix A: Nutrient Study
(Analysis of Collected Plant Nutritional Quality Data at Different Growth Stages)
Photo: Brianne Blackburn AK PMC
Photo: Casey Dinkel (AK PMC)
Photo: Stoney J. Wright (AK PMC)
Photo: Brennan Veith Low (AK PMC)
Photo: Casey Dinkel (AK PMC)
Detailed measurements of nutrient availability at various plant growth stages were taken during this study.
Introduction
Forage production in Alaska presents unique challenges, due to the short
growing season (100-118 days) and harsh environments encountered throughout diverse
regions of the state. Spring planting is optimal, as planted species are able to
utilize available moisture from winter snowmelt and take advantage of the warmer
temperatures and longer days of summer. Average summer temperatures in Alaska
range from 51 - 61 ̊F, with an 18 to 24 hour photo period in June.
Though these climatic factors present some challenges, forage production
numbers are stable. The mean per ton cost varies largely in Alaska, from $225/ton -
$750/ton, considerably higher than the $90 per ton common in the lower 48. The high
price variability can be attributed to high production costs, a shortage of available hay
and uncontrollable climate variables. To adapt to and overcome Alaska’s climate and
geography, managers should choose forage species with high nutritional value. This
will enable an animal’s nutrient intake levels to be met while minimizing the expense
of nutritional supplements.
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