lecture 24- sample analysis and evaluation

what type of hay did we sample

4 way hay - barley, oats, ryegrass, and wheat

what kind of animal was fed the 4 way hay from Dr. Hovey's farm

beef cows

where did we send our samples to

equi-analytical lab in Ithaca, New York

what are the types of hay analysis are there

hay and pasture only

hay, pasture, and grains

what are some commonly requested additional services

sulfur

chloride

selenium

nitrates

describe NIR services use

near infrared spectroscopy

describe what wet chemistry services use

titrations and other things that can happen at a lab bench

how was our hay analyzed

hay and pasture only, used NIR

what does WSC mean

water soluble carbs

what does WSC represent

mono, di, and polysaccs

what does ESC mean

ethanol soluble carbs

what does ESC represent

mainly monosaccs like glucose/fructose

what does NFC mean

non fiber carbs

what does NFC represent

estimate of non-cell wall (non-fiber) carbs like starch, sugar, and pectin that can serve as energy sources for animal

what is the NFC calculation

100%-(CP% + NFC% + fat% + Ash%)

what were some reasons why starch was low in our hay

harvested before seeding so less fiber

why was CP content in our hay higher than previous years

different harvest time + fertilizer

what does the ash content tell us about our sample

we had dirt in it