Vigortone gives its dealers a 'Gold Book' that has a lot of information
in it. It does give Feed compostion of many grasses and feeds. It does
not give any information on Pubscent or Intermediate grass/hay.
Here is some info that was asked for:
Crested Wheat
asture--Immature: 26.3 CP; 76 TDN; 28 DM
Crested Wheat: Pasture--Mature: 5.5CP; 54 TDN; 60 DM
It sure goes down nutrient wise as it dries up, and the 60 DM
means it is hard to digest. As Immature, it is excellent feed.
Native grass: short pasture: 8.8 CP; 46 TDN; 58 DM
Tall pasture: 5.2 CP; 52 TDN; 53 DM
I would say that the short pasture would be hard grass country,
and tall pasture would be more lush as it is lower (not much) in DM.
DM=dry matter for those who might not know. And DM is very
important when doing forage analysis.
There are tables for many other feeds. Ryegrass, Timothy hay,
wheat hay; wheat straw; Oat grain, hay or silage; orchardgrass;
fescue--hay or pasture; redtop pasture; sudan; switchgrass; tritical.
So if anyone wants to know about any of these, just post what
you would like me to look up.
Now for hay and grass samples that we have taken in this area, here
is a sample on a DM basis:
Hay Barley: 12.4 CP; TDN 65.1; DM 87.58 ADF (this is how digestible
the feed is, and is a very important part of your feed analysis):35.8.
This was pretty good feed. Digestible with good CP and TDN.
Grass Hay (mostly crested wheat); 10.6 CP; TDN 62.4 91.05 DM and
ADF 35.2. That ADF number indicates that it was cut at about the
right time. The higher this number is, the less digestible the feed.
10% CP is fine for a range cow. We feed this hay with no supplemnt
and get along great. Of course, we don't short them on feed, either.
Grass hay on the creek, again mostly Crested Wheat:
CP 11.4; TDN 62.9; DM 90.25; ADF 34.8
Here is Alfalfa, Brome and Crested Wheat:
17.43 CP; 60.54 TDN; 85.61 DM; 32.49 ADF
We bought some 'naked oats' and the protein in those was 19.18!!
They make great feed, especially if you pack them in a bucket...
Here was the analysis on some grass in Fallon County in August:
7.03 CP; 57.7 TDN; 39.3 ADF; 84.84 DM
You can see what happens when the grass dries out, nutrients
go DOWN.
This analysis was of a lot of Intermediate cut for hay:
10 CP, TDN 41, ADF 45; not the best feed indicated by the
TDN and ADF. Not much energy and not real digestible. It
most likely should have been cut earlier.
Here is some grass hay that was definitely cut too late:
CP 6.74; 42,15 TDN; ADF 44.35
Anyone that has read this far :wink: , here is a grass curve chart.
Forage quality and Dry matter intake
Excellent--14CP--62 TDN--2.7% of body wt for dry cow; 3% for lactating
Good--13CP--58 TDN--2.5% dry cow; 2.7 lactating
Medium--8 CP; 51TDN--2% dry cow; 2.5 lactating
Fair--6 CP--44--TDN--1.7% Dry cow; 2.2 lactating
Poor--4 CP--38--TDN--1.5% Dry cow; 2.0% lactating
-------------------------------------------------
In looking through my paperwork on forage testing, I haven't
found actuals of pasture grass analysis yet, but I will keep looking.
I did find a Feedstuffs newsletter that gave me Nutrient
analysis by region which covers Southeast USA; Great Plains USA;
Midwest USA and West USA and lists Alfalfa;
Bermuda; Fescue; Sedan; Cereal; Native; Grass; Silage; Brome. If anyone wants to know about that, just post or PM me.
Oh, as a chuckle, here's the analysis of PRICKLY PEAR CACTUS:
4.8 CP; 59 TDN. :wink:
:lol: :lol: :lol:
Hope this helps!
I hope I haven't bored anyone too badly.